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HBASE-14135 Merge backup images (Vladimir Rodionov)

This commit is contained in:
Josh Elser 2017-08-13 20:55:58 -04:00
parent b4d44467fb
commit 35aa7aae3a
18 changed files with 1398 additions and 359 deletions
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20
hbase-server/src/main/java/org/apache/hadoop/hbase/backup/BackupAdmin.java
View File

@ -38,8 +38,8 @@ import org.apache.hadoop.hbase.classification.InterfaceAudience;
public interface BackupAdmin extends Closeable {
/**
* Backup given list of tables fully. This is a synchronous operation.
* It returns backup id on success or throw exception on failure.
* Backup given list of tables fully. This is a synchronous operation. It returns backup id on
* success or throw exception on failure.
* @param userRequest BackupRequest instance
* @return the backup Id
*/
@ -61,15 +61,23 @@ public interface BackupAdmin extends Closeable {
*/
BackupInfo getBackupInfo(String backupId) throws IOException;
/**
* Delete backup image command
* @param backupIds backup id list
* @param backupIds array of backup ids
* @return total number of deleted sessions
* @throws IOException exception
*/
int deleteBackups(String[] backupIds) throws IOException;
/**
* Merge backup images command
* @param backupIds array of backup ids of images to be merged
* The resulting backup image will have the same backup id as the most
* recent image from a list of images to be merged
* @throws IOException exception
*/
void mergeBackups(String[] backupIds) throws IOException;
/**
* Show backup history command
* @param n last n backup sessions
@ -113,7 +121,7 @@ public interface BackupAdmin extends Closeable {
/**
* Add tables to backup set command
* @param name name of backup set.
* @param tables list of tables to be added to this set.
* @param tables array of tables to be added to this set.
* @throws IOException exception
*/
void addToBackupSet(String name, TableName[] tables) throws IOException;
@ -121,7 +129,7 @@ public interface BackupAdmin extends Closeable {
/**
* Remove tables from backup set
* @param name name of backup set.
* @param tables list of tables to be removed from this set.
* @param tables array of tables to be removed from this set.
* @throws IOException exception
*/
void removeFromBackupSet(String name, TableName[] tables) throws IOException;

2
hbase-server/src/main/java/org/apache/hadoop/hbase/backup/BackupDriver.java
View File

@ -111,6 +111,8 @@ public class BackupDriver extends AbstractHBaseTool {
type = BackupCommand.SET;
} else if (BackupCommand.REPAIR.name().equalsIgnoreCase(cmd)) {
type = BackupCommand.REPAIR;
} else if (BackupCommand.MERGE.name().equalsIgnoreCase(cmd)) {
type = BackupCommand.MERGE;
} else {
System.out.println("Unsupported command for backup: " + cmd);
printToolUsage();

5
hbase-server/src/main/java/org/apache/hadoop/hbase/backup/BackupInfo.java
View File

@ -433,6 +433,11 @@ public class BackupInfo implements Comparable<BackupInfo> {
}
}
@Override
public String toString() {
return backupId;
}
public byte[] toByteArray() throws IOException {
return toProtosBackupInfo().toByteArray();
}

40
hbase-server/src/main/java/org/apache/hadoop/hbase/backup/BackupMergeJob.java Normal file
View File

@ -0,0 +1,40 @@
/**
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance
* with the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.apache.hadoop.hbase.backup;
import java.io.IOException;
import org.apache.hadoop.conf.Configurable;
import org.apache.hadoop.hbase.classification.InterfaceAudience;
/**
* Backup merge operation job interface. Concrete implementation is provided by backup provider, see
* {@link BackupRestoreFactory}
*/
@InterfaceAudience.Private
public interface BackupMergeJob extends Configurable {
/**
* Run backup merge operation
* @param backupIds backup image ids
* @throws IOException
*/
void run(String[] backupIds) throws IOException;
}

20
hbase-server/src/main/java/org/apache/hadoop/hbase/backup/BackupRestoreFactory.java
View File

@ -19,6 +19,7 @@ package org.apache.hadoop.hbase.backup;
import org.apache.hadoop.conf.Configuration;
import org.apache.hadoop.hbase.backup.mapreduce.MapReduceBackupCopyJob;
import org.apache.hadoop.hbase.backup.mapreduce.MapReduceBackupMergeJob;
import org.apache.hadoop.hbase.backup.mapreduce.MapReduceRestoreJob;
import org.apache.hadoop.hbase.classification.InterfaceAudience;
import org.apache.hadoop.util.ReflectionUtils;
@ -32,6 +33,7 @@ public final class BackupRestoreFactory {
public final static String HBASE_INCR_RESTORE_IMPL_CLASS = "hbase.incremental.restore.class";
public final static String HBASE_BACKUP_COPY_IMPL_CLASS = "hbase.backup.copy.class";
public final static String HBASE_BACKUP_MERGE_IMPL_CLASS = "hbase.backup.merge.class";
private BackupRestoreFactory() {
throw new AssertionError("Instantiating utility class...");
@ -40,7 +42,7 @@ public final class BackupRestoreFactory {
/**
* Gets backup restore job
* @param conf configuration
* @return backup restore task instance
* @return backup restore job instance
*/
public static RestoreJob getRestoreJob(Configuration conf) {
Class<? extends RestoreJob> cls =
@ -53,7 +55,7 @@ public final class BackupRestoreFactory {
/**
* Gets backup copy job
* @param conf configuration
* @return backup copy task
* @return backup copy job instance
*/
public static BackupCopyJob getBackupCopyJob(Configuration conf) {
Class<? extends BackupCopyJob> cls =
@ -63,4 +65,18 @@ public final class BackupRestoreFactory {
service.setConf(conf);
return service;
}
/**
* Gets backup merge job
* @param conf configuration
* @return backup merge job instance
*/
public static BackupMergeJob getBackupMergeJob(Configuration conf) {
Class<? extends BackupMergeJob> cls =
conf.getClass(HBASE_BACKUP_MERGE_IMPL_CLASS, MapReduceBackupMergeJob.class,
BackupMergeJob.class);
BackupMergeJob service = ReflectionUtils.newInstance(cls, conf);
service.setConf(conf);
return service;
}
}

43
hbase-server/src/main/java/org/apache/hadoop/hbase/backup/HBackupFileSystem.java
View File

@ -49,8 +49,8 @@ public class HBackupFileSystem {
/**
* Given the backup root dir, backup id and the table name, return the backup image location,
* which is also where the backup manifest file is. return value look like:
* "hdfs://backup.hbase.org:9000/user/biadmin/backup/backup_1396650096738/default/t1_dn/",
* where "hdfs://backup.hbase.org:9000/user/biadmin/backup" is a backup root directory
* "hdfs://backup.hbase.org:9000/user/biadmin/backup/backup_1396650096738/default/t1_dn/", where
* "hdfs://backup.hbase.org:9000/user/biadmin/backup" is a backup root directory
* @param backupRootDir backup root directory
* @param backupId backup id
* @param tableName table name
@ -63,18 +63,26 @@ public class HBackupFileSystem {
+ Path.SEPARATOR;
}
public static String getTableBackupDataDir(String backupRootDir, String backupId,
TableName tableName) {
return getTableBackupDir(backupRootDir, backupId, tableName) + Path.SEPARATOR + "data";
}
public static Path getBackupPath(String backupRootDir, String backupId) {
return new Path(backupRootDir + Path.SEPARATOR + backupId);
}
/**
* Given the backup root dir, backup id and the table name, return the backup image location,
* which is also where the backup manifest file is. return value look like:
* "hdfs://backup.hbase.org:9000/user/biadmin/backup/backup_1396650096738/default/t1_dn/",
* where "hdfs://backup.hbase.org:9000/user/biadmin/backup" is a backup root directory
* "hdfs://backup.hbase.org:9000/user/biadmin/backup/backup_1396650096738/default/t1_dn/", where
* "hdfs://backup.hbase.org:9000/user/biadmin/backup" is a backup root directory
* @param backupRootPath backup root path
* @param tableName table name
* @param backupId backup Id
* @return backupPath for the particular table
*/
public static Path getTableBackupPath(TableName tableName,
Path backupRootPath, String backupId) {
public static Path getTableBackupPath(TableName tableName, Path backupRootPath, String backupId) {
return new Path(getTableBackupDir(backupRootPath.toString(), backupId, tableName));
}
@ -94,17 +102,15 @@ public class HBackupFileSystem {
return new Path(getLogBackupDir(backupRootDir, backupId));
}
private static Path getManifestPath(TableName tableName, Configuration conf, Path backupRootPath,
String backupId) throws IOException {
Path manifestPath =
new Path(getTableBackupPath(tableName, backupRootPath, backupId),
BackupManifest.MANIFEST_FILE_NAME);
// TODO we do not keep WAL files anymore
// Move manifest file to other place
private static Path getManifestPath(Configuration conf, Path backupRootPath, String backupId)
throws IOException {
Path manifestPath = null;
FileSystem fs = backupRootPath.getFileSystem(conf);
if (!fs.exists(manifestPath)) {
// check log dir for incremental backup case
manifestPath =
new Path(getLogBackupDir(backupRootPath.toString(), backupId) + Path.SEPARATOR
new Path(getBackupPath(backupRootPath.toString(), backupId) + Path.SEPARATOR
+ BackupManifest.MANIFEST_FILE_NAME);
if (!fs.exists(manifestPath)) {
String errorMsg =
@ -113,14 +119,13 @@ public class HBackupFileSystem {
+ " correspond to previously taken backup ?";
throw new IOException(errorMsg);
}
}
return manifestPath;
}
public static BackupManifest getManifest(TableName tableName, Configuration conf,
Path backupRootPath, String backupId) throws IOException {
public static BackupManifest
getManifest(Configuration conf, Path backupRootPath, String backupId) throws IOException {
BackupManifest manifest =
new BackupManifest(conf, getManifestPath(tableName, conf, backupRootPath, backupId));
new BackupManifest(conf, getManifestPath(conf, backupRootPath, backupId));
return manifest;
}
@ -134,7 +139,7 @@ public class HBackupFileSystem {
TableName[] tableArray, Configuration conf, Path backupRootPath, String backupId)
throws IOException {
for (TableName tableName : tableArray) {
BackupManifest manifest = getManifest(tableName, conf, backupRootPath, backupId);
BackupManifest manifest = getManifest(conf, backupRootPath, backupId);
backupManifestMap.put(tableName, manifest);
}
}

191
hbase-server/src/main/java/org/apache/hadoop/hbase/backup/impl/BackupAdminImpl.java
View File

@ -19,6 +19,7 @@ package org.apache.hadoop.hbase.backup.impl;
import java.io.IOException;
import java.util.ArrayList;
import java.util.Collections;
import java.util.HashMap;
import java.util.HashSet;
import java.util.List;
@ -36,8 +37,10 @@ import org.apache.hadoop.hbase.backup.BackupAdmin;
import org.apache.hadoop.hbase.backup.BackupClientFactory;
import org.apache.hadoop.hbase.backup.BackupInfo;
import org.apache.hadoop.hbase.backup.BackupInfo.BackupState;
import org.apache.hadoop.hbase.backup.BackupMergeJob;
import org.apache.hadoop.hbase.backup.BackupRequest;
import org.apache.hadoop.hbase.backup.BackupRestoreConstants;
import org.apache.hadoop.hbase.backup.BackupRestoreFactory;
import org.apache.hadoop.hbase.backup.BackupType;
import org.apache.hadoop.hbase.backup.HBackupFileSystem;
import org.apache.hadoop.hbase.backup.RestoreRequest;
@ -46,9 +49,8 @@ import org.apache.hadoop.hbase.backup.util.BackupUtils;
import org.apache.hadoop.hbase.classification.InterfaceAudience;
import org.apache.hadoop.hbase.client.Admin;
import org.apache.hadoop.hbase.client.Connection;
import org.apache.hadoop.hbase.util.EnvironmentEdgeManager;
import org.apache.hadoop.hbase.shaded.com.google.common.collect.Lists;
import org.apache.hadoop.hbase.util.EnvironmentEdgeManager;
@InterfaceAudience.Private
public class BackupAdminImpl implements BackupAdmin {
@ -65,11 +67,7 @@ public class BackupAdminImpl implements BackupAdmin {
@Override
public void close() throws IOException {
if (conn != null) {
conn.close();
}
}
@Override
public BackupInfo getBackupInfo(String backupId) throws IOException {
@ -105,12 +103,12 @@ public class BackupAdminImpl implements BackupAdmin {
// is running by using startBackupSession API
// If there is an active session in progress, exception will be thrown
try {
sysTable.startBackupSession();
sysTable.startBackupExclusiveOperation();
deleteSessionStarted = true;
} catch (IOException e) {
LOG.warn("You can not run delete command while active backup session is in progress. \n"
+ "If there is no active backup session running, run backup repair utility to restore \n"
+"backup system integrity.");
+ "backup system integrity.");
return -1;
}
@ -154,13 +152,13 @@ public class BackupAdminImpl implements BackupAdmin {
// Fail delete operation
// Step 1
if (snapshotDone) {
if(BackupSystemTable.snapshotExists(conn)) {
if (BackupSystemTable.snapshotExists(conn)) {
BackupSystemTable.restoreFromSnapshot(conn);
// delete snapshot
BackupSystemTable.deleteSnapshot(conn);
// We still have record with unfinished delete operation
LOG.error("Delete operation failed, please run backup repair utility to restore "+
"backup system integrity", e);
LOG.error("Delete operation failed, please run backup repair utility to restore "
+ "backup system integrity", e);
throw e;
} else {
LOG.warn("Delete operation succeeded, there were some errors: ", e);
@ -169,7 +167,7 @@ public class BackupAdminImpl implements BackupAdmin {
} finally {
if (deleteSessionStarted) {
sysTable.finishBackupSession();
sysTable.finishBackupExclusiveOperation();
}
}
}
@ -213,8 +211,8 @@ public class BackupAdminImpl implements BackupAdmin {
* if(FULL, NO), deletes PD, scans all newer backups and removes T from backupInfo,<br>
* until we either reach the most recent backup for T in the system or FULL backup<br>
* which includes T<br>
* if(INCREMENTAL, YES) deletes only physical data (PD)
* if(INCREMENTAL, NO) deletes physical data and for table T scans all backup images between last<br>
* if(INCREMENTAL, YES) deletes only physical data (PD) if(INCREMENTAL, NO) deletes physical data
* and for table T scans all backup images between last<br>
* FULL backup, which is older than the backup being deleted and the next FULL backup (if exists) <br>
* or last one for a particular table T and removes T from list of backup tables.
* @param backupId backup id
@ -285,8 +283,9 @@ public class BackupAdminImpl implements BackupAdmin {
return totalDeleted;
}
private void removeTableFromBackupImage(BackupInfo info, TableName tn,
BackupSystemTable sysTable) throws IOException {
private void
removeTableFromBackupImage(BackupInfo info, TableName tn, BackupSystemTable sysTable)
throws IOException {
List<TableName> tables = info.getTableNames();
LOG.debug("Remove " + tn + " from " + info.getBackupId() + " tables="
+ info.getTableListAsString());
@ -485,7 +484,7 @@ public class BackupAdminImpl implements BackupAdmin {
private String[] toStringArray(TableName[] list) {
String[] arr = new String[list.length];
for(int i=0; i < list.length; i++) {
for (int i = 0; i < list.length; i++) {
arr[i] = list[i].toString();
}
return arr;
@ -521,7 +520,7 @@ public class BackupAdminImpl implements BackupAdmin {
String targetRootDir = request.getTargetRootDir();
List<TableName> tableList = request.getTableList();
String backupId =BackupRestoreConstants.BACKUPID_PREFIX + EnvironmentEdgeManager.currentTime();
String backupId = BackupRestoreConstants.BACKUPID_PREFIX + EnvironmentEdgeManager.currentTime();
if (type == BackupType.INCREMENTAL) {
Set<TableName> incrTableSet = null;
try (BackupSystemTable table = new BackupSystemTable(conn)) {
@ -529,19 +528,20 @@ public class BackupAdminImpl implements BackupAdmin {
}
if (incrTableSet.isEmpty()) {
String msg = "Incremental backup table set contains no tables. "
+ "You need to run full backup first " +
(tableList != null ? "on "+StringUtils.join(tableList, ","): "");
String msg =
"Incremental backup table set contains no tables. "
+ "You need to run full backup first "
+ (tableList != null ? "on " + StringUtils.join(tableList, ",") : "");
throw new IOException(msg);
}
if(tableList != null) {
if (tableList != null) {
tableList.removeAll(incrTableSet);
if (!tableList.isEmpty()) {
String extraTables = StringUtils.join(tableList, ",");
String msg = "Some tables (" + extraTables + ") haven't gone through full backup. "+
"Perform full backup on " + extraTables + " first, "
+ "then retry the command";
String msg =
"Some tables (" + extraTables + ") haven't gone through full backup. "
+ "Perform full backup on " + extraTables + " first, " + "then retry the command";
throw new IOException(msg);
}
}
@ -584,14 +584,13 @@ public class BackupAdminImpl implements BackupAdmin {
// update table list
BackupRequest.Builder builder = new BackupRequest.Builder();
request = builder.withBackupType(request.getBackupType()).
withTableList(tableList).
withTargetRootDir(request.getTargetRootDir()).
withBackupSetName(request.getBackupSetName()).
withTotalTasks(request.getTotalTasks()).
withBandwidthPerTasks((int)request.getBandwidth()).build();
request =
builder.withBackupType(request.getBackupType()).withTableList(tableList)
.withTargetRootDir(request.getTargetRootDir())
.withBackupSetName(request.getBackupSetName()).withTotalTasks(request.getTotalTasks())
.withBandwidthPerTasks((int) request.getBandwidth()).build();
TableBackupClient client =null;
TableBackupClient client = null;
try {
client = BackupClientFactory.create(conn, backupId, request);
} catch (IOException e) {
@ -613,4 +612,132 @@ public class BackupAdminImpl implements BackupAdmin {
return tableList;
}
@Override
public void mergeBackups(String[] backupIds) throws IOException {
try (final BackupSystemTable sysTable = new BackupSystemTable(conn);) {
checkIfValidForMerge(backupIds, sysTable);
BackupMergeJob job = BackupRestoreFactory.getBackupMergeJob(conn.getConfiguration());
job.run(backupIds);
}
}
/**
* Verifies that backup images are valid for merge.
*
* <ul>
* <li>All backups MUST be in the same destination
* <li>No FULL backups are allowed - only INCREMENTAL
* <li>All backups must be in COMPLETE state
* <li>No holes in backup list are allowed
* </ul>
* <p>
* @param backupIds list of backup ids
* @param table backup system table
* @throws IOException
*/
private void checkIfValidForMerge(String[] backupIds, BackupSystemTable table) throws IOException {
String backupRoot = null;
final Set<TableName> allTables = new HashSet<TableName>();
final Set<String> allBackups = new HashSet<String>();
long minTime = Long.MAX_VALUE, maxTime = Long.MIN_VALUE;
for (String backupId : backupIds) {
BackupInfo bInfo = table.readBackupInfo(backupId);
if (bInfo == null) {
String msg = "Backup session " + backupId + " not found";
throw new IOException(msg);
}
if (backupRoot == null) {
backupRoot = bInfo.getBackupRootDir();
} else if (!bInfo.getBackupRootDir().equals(backupRoot)) {
throw new IOException("Found different backup destinations in a list of a backup sessions \n"
+ "1. " + backupRoot + "\n" + "2. " + bInfo.getBackupRootDir());
}
if (bInfo.getType() == BackupType.FULL) {
throw new IOException("FULL backup image can not be merged for: \n" + bInfo);
}
if (bInfo.getState() != BackupState.COMPLETE) {
throw new IOException("Backup image " + backupId
+ " can not be merged becuase of its state: " + bInfo.getState());
}
allBackups.add(backupId);
allTables.addAll(bInfo.getTableNames());
long time = bInfo.getStartTs();
if (time < minTime) {
minTime = time;
}
if (time > maxTime) {
maxTime = time;
}
}
final long startRangeTime = minTime;
final long endRangeTime = maxTime;
final String backupDest = backupRoot;
// Check we have no 'holes' in backup id list
// Filter 1 : backupRoot
// Filter 2 : time range filter
// Filter 3 : table filter
BackupInfo.Filter destinationFilter = new BackupInfo.Filter() {
@Override
public boolean apply(BackupInfo info) {
return info.getBackupRootDir().equals(backupDest);
}
};
BackupInfo.Filter timeRangeFilter = new BackupInfo.Filter() {
@Override
public boolean apply(BackupInfo info) {
long time = info.getStartTs();
return time >= startRangeTime && time <= endRangeTime ;
}
};
BackupInfo.Filter tableFilter = new BackupInfo.Filter() {
@Override
public boolean apply(BackupInfo info) {
List<TableName> tables = info.getTableNames();
return !Collections.disjoint(allTables, tables);
}
};
BackupInfo.Filter typeFilter = new BackupInfo.Filter() {
@Override
public boolean apply(BackupInfo info) {
return info.getType() == BackupType.INCREMENTAL;
}
};
BackupInfo.Filter stateFilter = new BackupInfo.Filter() {
@Override
public boolean apply(BackupInfo info) {
return info.getState() == BackupState.COMPLETE;
}
};
List<BackupInfo> allInfos =
table.getBackupHistory( -1, destinationFilter,
timeRangeFilter, tableFilter, typeFilter, stateFilter);
if (allInfos.size() != allBackups.size()) {
// Yes we have at least one hole in backup image sequence
List<String> missingIds = new ArrayList<String>();
for(BackupInfo info: allInfos) {
if(allBackups.contains(info.getBackupId())) {
continue;
}
missingIds.add(info.getBackupId());
}
String errMsg =
"Sequence of backup ids has 'holes'. The following backup images must be added:" +
org.apache.hadoop.util.StringUtils.join(",", missingIds);
throw new IOException(errMsg);
}
}
}

159
hbase-server/src/main/java/org/apache/hadoop/hbase/backup/impl/BackupCommands.java
View File

@ -59,9 +59,8 @@ import org.apache.hadoop.hbase.backup.util.BackupUtils;
import org.apache.hadoop.hbase.classification.InterfaceAudience;
import org.apache.hadoop.hbase.client.Connection;
import org.apache.hadoop.hbase.client.ConnectionFactory;
import org.apache.hadoop.hbase.util.EnvironmentEdgeManager;
import org.apache.hadoop.hbase.shaded.com.google.common.collect.Lists;
import org.apache.hadoop.hbase.util.EnvironmentEdgeManager;
/**
* General backup commands, options and usage messages
@ -79,7 +78,8 @@ public final class BackupCommands {
+ " history show history of all successful backups\n"
+ " progress show the progress of the latest backup request\n"
+ " set backup set management\n"
+ " repair repair backup system table"
+ " repair repair backup system table\n"
+ " merge merge backup images\n"
+ "Run \'hbase backup COMMAND -h\' to see help message for each command\n";
public static final String CREATE_CMD_USAGE =
@ -109,17 +109,20 @@ public final class BackupCommands {
public static final String SET_CMD_USAGE = "Usage: hbase backup set COMMAND [name] [tables]\n"
+ " name Backup set name\n"
+ " tables Comma separated list of tables.\n"
+ "COMMAND is one of:\n" + " add add tables to a set, create a set if needed\n"
+ " tables Comma separated list of tables.\n" + "COMMAND is one of:\n"
+ " add add tables to a set, create a set if needed\n"
+ " remove remove tables from a set\n"
+ " list list all backup sets in the system\n"
+ " describe describe set\n" + " delete delete backup set\n";
public static final String MERGE_CMD_USAGE = "Usage: hbase backup merge [backup_ids]\n"
+ " backup_ids Comma separated list of backup image ids.\n";
public static final String USAGE_FOOTER = "";
public static abstract class Command extends Configured {
CommandLine cmdline;
Connection conn;
Command(Configuration conf) {
if (conf == null) {
conf = HBaseConfiguration.create();
@ -140,7 +143,7 @@ public final class BackupCommands {
try (BackupSystemTable table = new BackupSystemTable(conn);) {
List<BackupInfo> sessions = table.getBackupInfos(BackupState.RUNNING);
if(sessions.size() > 0) {
if (sessions.size() > 0) {
System.err.println("Found backup session in a RUNNING state: ");
System.err.println(sessions.get(0));
System.err.println("This may indicate that a previous session has failed abnormally.");
@ -154,11 +157,19 @@ public final class BackupCommands {
try (BackupSystemTable table = new BackupSystemTable(conn);) {
String[] ids = table.getListOfBackupIdsFromDeleteOperation();
if(ids !=null && ids.length > 0) {
System.err.println("Found failed backup delete coommand. ");
if (ids != null && ids.length > 0) {
System.err.println("Found failed backup DELETE coommand. ");
System.err.println("Backup system recovery is required.");
throw new IOException("Failed backup delete found, aborted command execution");
throw new IOException("Failed backup DELETE found, aborted command execution");
}
ids = table.getListOfBackupIdsFromMergeOperation();
if (ids != null && ids.length > 0) {
System.err.println("Found failed backup MERGE coommand. ");
System.err.println("Backup system recovery is required.");
throw new IOException("Failed backup MERGE found, aborted command execution");
}
}
}
}
@ -178,10 +189,10 @@ public final class BackupCommands {
protected boolean requiresNoActiveSession() {
return false;
}
/**
* Command requires consistent state of a backup system
* Backup system may become inconsistent because of an abnormal
* termination of a backup session or delete command
* Command requires consistent state of a backup system Backup system may become inconsistent
* because of an abnormal termination of a backup session or delete command
* @return true, if yes
*/
protected boolean requiresConsistentState() {
@ -220,6 +231,9 @@ public final class BackupCommands {
case REPAIR:
cmd = new RepairCommand(conf, cmdline);
break;
case MERGE:
cmd = new MergeCommand(conf, cmdline);
break;
case HELP:
default:
cmd = new HelpCommand(conf, cmdline);
@ -257,7 +271,7 @@ public final class BackupCommands {
throw new IOException(INCORRECT_USAGE);
}
String[] args = cmdline.getArgs();
if (args.length !=3) {
if (args.length != 3) {
printUsage();
throw new IOException(INCORRECT_USAGE);
}
@ -274,7 +288,6 @@ public final class BackupCommands {
throw new IOException(INCORRECT_USAGE);
}
String tables = null;
// Check if we have both: backup set and list of tables
@ -311,13 +324,13 @@ public final class BackupCommands {
try (BackupAdminImpl admin = new BackupAdminImpl(conn);) {
BackupRequest.Builder builder = new BackupRequest.Builder();
BackupRequest request = builder.withBackupType(BackupType.valueOf(args[1].toUpperCase()))
.withTableList(tables != null ?
Lists.newArrayList(BackupUtils.parseTableNames(tables)) : null)
.withTargetRootDir(args[2])
.withTotalTasks(workers)
.withBandwidthPerTasks(bandwidth)
.withBackupSetName(setName).build();
BackupRequest request =
builder
.withBackupType(BackupType.valueOf(args[1].toUpperCase()))
.withTableList(
tables != null ? Lists.newArrayList(BackupUtils.parseTableNames(tables)) : null)
.withTargetRootDir(args[2]).withTotalTasks(workers)
.withBandwidthPerTasks(bandwidth).withBackupSetName(setName).build();
String backupId = admin.backupTables(request);
System.out.println("Backup session " + backupId + " finished. Status: SUCCESS");
} catch (IOException e) {
@ -544,7 +557,8 @@ public final class BackupCommands {
int deleted = admin.deleteBackups(backupIds);
System.out.println("Deleted " + deleted + " backups. Total requested: " + args.length);
} catch (IOException e) {
System.err.println("Delete command FAILED. Please run backup repair tool to restore backup system integrity");
System.err
.println("Delete command FAILED. Please run backup repair tool to restore backup system integrity");
throw e;
}
@ -584,8 +598,9 @@ public final class BackupCommands {
if (list.size() == 0) {
// No failed sessions found
System.out.println("REPAIR status: no failed sessions found."
+" Checking failed delete backup operation ...");
+ " Checking failed delete backup operation ...");
repairFailedBackupDeletionIfAny(conn, sysTable);
repairFailedBackupMergeIfAny(conn, sysTable);
return;
}
backupInfo = list.get(0);
@ -606,32 +621,55 @@ public final class BackupCommands {
// If backup session is updated to FAILED state - means we
// processed recovery already.
sysTable.updateBackupInfo(backupInfo);
sysTable.finishBackupSession();
System.out.println("REPAIR status: finished repair failed session:\n "+ backupInfo);
sysTable.finishBackupExclusiveOperation();
System.out.println("REPAIR status: finished repair failed session:\n " + backupInfo);
}
}
private void repairFailedBackupDeletionIfAny(Connection conn, BackupSystemTable sysTable)
throws IOException
{
throws IOException {
String[] backupIds = sysTable.getListOfBackupIdsFromDeleteOperation();
if (backupIds == null ||backupIds.length == 0) {
System.out.println("No failed backup delete operation found");
if (backupIds == null || backupIds.length == 0) {
System.out.println("No failed backup DELETE operation found");
// Delete backup table snapshot if exists
BackupSystemTable.deleteSnapshot(conn);
return;
}
System.out.println("Found failed delete operation for: " + StringUtils.join(backupIds));
System.out.println("Running delete again ...");
System.out.println("Found failed DELETE operation for: " + StringUtils.join(backupIds));
System.out.println("Running DELETE again ...");
// Restore table from snapshot
BackupSystemTable.restoreFromSnapshot(conn);
// Finish previous failed session
sysTable.finishBackupSession();
try(BackupAdmin admin = new BackupAdminImpl(conn);) {
sysTable.finishBackupExclusiveOperation();
try (BackupAdmin admin = new BackupAdminImpl(conn);) {
admin.deleteBackups(backupIds);
}
System.out.println("Delete operation finished OK: "+ StringUtils.join(backupIds));
System.out.println("DELETE operation finished OK: " + StringUtils.join(backupIds));
}
private void repairFailedBackupMergeIfAny(Connection conn, BackupSystemTable sysTable)
throws IOException {
String[] backupIds = sysTable.getListOfBackupIdsFromMergeOperation();
if (backupIds == null || backupIds.length == 0) {
System.out.println("No failed backup MERGE operation found");
// Delete backup table snapshot if exists
BackupSystemTable.deleteSnapshot(conn);
return;
}
System.out.println("Found failed MERGE operation for: " + StringUtils.join(backupIds));
System.out.println("Running MERGE again ...");
// Restore table from snapshot
BackupSystemTable.restoreFromSnapshot(conn);
// Unlock backupo system
sysTable.finishBackupExclusiveOperation();
// Finish previous failed session
sysTable.finishMergeOperation();
try (BackupAdmin admin = new BackupAdminImpl(conn);) {
admin.mergeBackups(backupIds);
}
System.out.println("MERGE operation finished OK: " + StringUtils.join(backupIds));
}
@ -641,6 +679,56 @@ public final class BackupCommands {
}
}
private static class MergeCommand extends Command {
MergeCommand(Configuration conf, CommandLine cmdline) {
super(conf);
this.cmdline = cmdline;
}
@Override
protected boolean requiresNoActiveSession() {
return true;
}
@Override
protected boolean requiresConsistentState() {
return true;
}
@Override
public void execute() throws IOException {
super.execute();
String[] args = cmdline == null ? null : cmdline.getArgs();
if (args == null || (args.length != 2)) {
System.err.println("ERROR: wrong number of arguments: "
+ (args == null ? null : args.length));
printUsage();
throw new IOException(INCORRECT_USAGE);
}
String[] backupIds = args[1].split(",");
if (backupIds.length < 2) {
String msg = "ERROR: can not merge a single backup image. "+
"Number of images must be greater than 1.";
System.err.println(msg);
throw new IOException(msg);
}
Configuration conf = getConf() != null ? getConf() : HBaseConfiguration.create();
try (final Connection conn = ConnectionFactory.createConnection(conf);
final BackupAdminImpl admin = new BackupAdminImpl(conn);) {
admin.mergeBackups(backupIds);
}
}
@Override
protected void printUsage() {
System.out.println(MERGE_CMD_USAGE);
}
}
// TODO Cancel command
private static class CancelCommand extends Command {
@ -672,7 +760,6 @@ public final class BackupCommands {
@Override
public void execute() throws IOException {
int n = parseHistoryLength();
final TableName tableName = getTableName();
final String setName = getTableSetName();
@ -883,7 +970,7 @@ public final class BackupCommands {
private TableName[] toTableNames(String[] tables) {
TableName[] arr = new TableName[tables.length];
for (int i=0; i < tables.length; i++) {
for (int i = 0; i < tables.length; i++) {
arr[i] = TableName.valueOf(tables[i]);
}
return arr;

19
hbase-server/src/main/java/org/apache/hadoop/hbase/backup/impl/BackupManager.java
View File

@ -115,8 +115,8 @@ public class BackupManager implements Closeable {
}
if (LOG.isDebugEnabled()) {
LOG.debug("Added log cleaner: " + cleanerClass +"\n" +
"Added master procedure manager: " + masterProcedureClass);
LOG.debug("Added log cleaner: " + cleanerClass + "\n" + "Added master procedure manager: "
+ masterProcedureClass);
}
}
@ -185,9 +185,8 @@ public class BackupManager implements Closeable {
* @return BackupInfo
* @throws BackupException exception
*/
public BackupInfo createBackupInfo(String backupId, BackupType type,
List<TableName> tableList, String targetRootDir, int workers, long bandwidth)
throws BackupException {
public BackupInfo createBackupInfo(String backupId, BackupType type, List<TableName> tableList,
String targetRootDir, int workers, long bandwidth) throws BackupException {
if (targetRootDir == null) {
throw new BackupException("Wrong backup request parameter: target backup root directory");
}
@ -313,7 +312,7 @@ public class BackupManager implements Closeable {
}
} else {
Path logBackupPath =
HBackupFileSystem.getLogBackupPath(backup.getBackupRootDir(), backup.getBackupId());
HBackupFileSystem.getBackupPath(backup.getBackupRootDir(), backup.getBackupId());
LOG.debug("Current backup has an incremental backup ancestor, "
+ "touching its image manifest in " + logBackupPath.toString()
+ " to construct the dependency.");
@ -371,7 +370,7 @@ public class BackupManager implements Closeable {
* @throws IOException if active session already exists
*/
public void startBackupSession() throws IOException {
systemTable.startBackupSession();
systemTable.startBackupExclusiveOperation();
}
/**
@ -379,10 +378,9 @@ public class BackupManager implements Closeable {
* @throws IOException if no active session
*/
public void finishBackupSession() throws IOException {
systemTable.finishBackupSession();
systemTable.finishBackupExclusiveOperation();
}
/**
* Read the last backup start code (timestamp) of last successful backup. Will return null if
* there is no startcode stored in backup system table or the value is of length 0. These two
@ -448,8 +446,7 @@ public class BackupManager implements Closeable {
*/
public void writeRegionServerLogTimestamp(Set<TableName> tables,
HashMap<String, Long> newTimestamps) throws IOException {
systemTable.writeRegionServerLogTimestamp(tables, newTimestamps,
backupInfo.getBackupRootDir());
systemTable.writeRegionServerLogTimestamp(tables, newTimestamps, backupInfo.getBackupRootDir());
}
/**

24
hbase-server/src/main/java/org/apache/hadoop/hbase/backup/impl/BackupManifest.java
View File

@ -39,6 +39,7 @@ import org.apache.hadoop.hbase.ServerName;
import org.apache.hadoop.hbase.TableName;
import org.apache.hadoop.hbase.backup.BackupInfo;
import org.apache.hadoop.hbase.backup.BackupType;
import org.apache.hadoop.hbase.backup.HBackupFileSystem;
import org.apache.hadoop.hbase.backup.util.BackupUtils;
import org.apache.hadoop.hbase.classification.InterfaceAudience;
import org.apache.hadoop.hbase.shaded.protobuf.ProtobufUtil;
@ -61,9 +62,8 @@ public class BackupManifest {
public static final String MANIFEST_FILE_NAME = ".backup.manifest";
/**
* Backup image, the dependency graph is made up by series of backup images
* BackupImage contains all the relevant information to restore the backup and
* is used during restore operation
* Backup image, the dependency graph is made up by series of backup images BackupImage contains
* all the relevant information to restore the backup and is used during restore operation
*/
public static class BackupImage implements Comparable<BackupImage> {
@ -294,6 +294,16 @@ public class BackupManifest {
return this.ancestors;
}
public void removeAncestors(List<String> backupIds) {
List<BackupImage> toRemove = new ArrayList<BackupImage>();
for (BackupImage im : this.ancestors) {
if (backupIds.contains(im.getBackupId())) {
toRemove.add(im);
}
}
this.ancestors.removeAll(toRemove);
}
private void addAncestor(BackupImage backupImage) {
this.getAncestors().add(backupImage);
}
@ -464,18 +474,16 @@ public class BackupManifest {
}
/**
* Persist the manifest file.
* TODO: fix it. Persist the manifest file.
* @throws IOException IOException when storing the manifest file.
*/
public void store(Configuration conf) throws BackupException {
byte[] data = backupImage.toProto().toByteArray();
// write the file, overwrite if already exist
String logBackupDir =
BackupUtils.getLogBackupDir(backupImage.getRootDir(), backupImage.getBackupId());
Path manifestFilePath =
new Path(new Path((tableBackupDir != null ? tableBackupDir : logBackupDir)),
MANIFEST_FILE_NAME);
new Path(HBackupFileSystem.getBackupPath(backupImage.getRootDir(),
backupImage.getBackupId()), MANIFEST_FILE_NAME);
try (FSDataOutputStream out =
manifestFilePath.getFileSystem(conf).create(manifestFilePath, true);) {
out.write(data);

264
hbase-server/src/main/java/org/apache/hadoop/hbase/backup/impl/BackupSystemTable.java
View File

@ -82,6 +82,7 @@ import org.apache.hadoop.hbase.util.Pair;
* value = backupId and full WAL file name</li>
* </ul></p>
*/
@InterfaceAudience.Private
public final class BackupSystemTable implements Closeable {
private static final Log LOG = LogFactory.getLog(BackupSystemTable.class);
@ -131,7 +132,6 @@ public final class BackupSystemTable implements Closeable {
*/
private final Connection connection;
private final static String BACKUP_INFO_PREFIX = "session:";
private final static String START_CODE_ROW = "startcode:";
private final static byte[] ACTIVE_SESSION_ROW = "activesession:".getBytes();
@ -147,6 +147,7 @@ public final class BackupSystemTable implements Closeable {
private final static String BULK_LOAD_PREFIX = "bulk:";
private final static byte[] BULK_LOAD_PREFIX_BYTES = BULK_LOAD_PREFIX.getBytes();
private final static byte[] DELETE_OP_ROW = "delete_op_row".getBytes();
private final static byte[] MERGE_OP_ROW = "merge_op_row".getBytes();
final static byte[] TBL_COL = Bytes.toBytes("tbl");
final static byte[] FAM_COL = Bytes.toBytes("fam");
@ -191,7 +192,7 @@ public final class BackupSystemTable implements Closeable {
NamespaceDescriptor ns = NamespaceDescriptor.create(namespaceName).build();
NamespaceDescriptor[] list = admin.listNamespaceDescriptors();
boolean exists = false;
for( NamespaceDescriptor nsd: list) {
for (NamespaceDescriptor nsd : list) {
if (nsd.getName().equals(ns.getName())) {
exists = true;
break;
@ -211,15 +212,13 @@ public final class BackupSystemTable implements Closeable {
} catch (InterruptedException e) {
}
if (EnvironmentEdgeManager.currentTime() - startTime > TIMEOUT) {
throw new IOException("Failed to create backup system table after "+ TIMEOUT+"ms");
throw new IOException("Failed to create backup system table after " + TIMEOUT + "ms");
}
}
LOG.debug("Backup table exists and available");
}
@Override
public void close() {
// do nothing
@ -315,7 +314,8 @@ public final class BackupSystemTable implements Closeable {
if (LOG.isDebugEnabled()) {
LOG.debug("found bulk loaded file : " + tbl + " " + Bytes.toString(fam) + " " + path);
}
};
}
;
return mapForSrc;
}
}
@ -359,16 +359,16 @@ public final class BackupSystemTable implements Closeable {
public void writePathsPostBulkLoad(TableName tabName, byte[] region,
Map<byte[], List<Path>> finalPaths) throws IOException {
if (LOG.isDebugEnabled()) {
LOG.debug("write bulk load descriptor to backup " + tabName + " with " +
finalPaths.size() + " entries");
LOG.debug("write bulk load descriptor to backup " + tabName + " with " + finalPaths.size()
+ " entries");
}
try (Table table = connection.getTable(tableName)) {
List<Put> puts = BackupSystemTable.createPutForCommittedBulkload(tabName, region,
finalPaths);
List<Put> puts = BackupSystemTable.createPutForCommittedBulkload(tabName, region, finalPaths);
table.put(puts);
LOG.debug("written " + puts.size() + " rows for bulk load of " + tabName);
}
}
/*
* For preCommitStoreFile() hook
* @param tabName table name
@ -376,15 +376,15 @@ public final class BackupSystemTable implements Closeable {
* @param family column family
* @param pairs list of paths for hfiles
*/
public void writeFilesForBulkLoadPreCommit(TableName tabName, byte[] region,
final byte[] family, final List<Pair<Path, Path>> pairs) throws IOException {
public void writeFilesForBulkLoadPreCommit(TableName tabName, byte[] region, final byte[] family,
final List<Pair<Path, Path>> pairs) throws IOException {
if (LOG.isDebugEnabled()) {
LOG.debug("write bulk load descriptor to backup " + tabName + " with " +
pairs.size() + " entries");
LOG.debug("write bulk load descriptor to backup " + tabName + " with " + pairs.size()
+ " entries");
}
try (Table table = connection.getTable(tableName)) {
List<Put> puts = BackupSystemTable.createPutForPreparedBulkload(tabName, region,
family, pairs);
List<Put> puts =
BackupSystemTable.createPutForPreparedBulkload(tabName, region, family, pairs);
table.put(puts);
LOG.debug("written " + puts.size() + " rows for bulk load of " + tabName);
}
@ -411,8 +411,8 @@ public final class BackupSystemTable implements Closeable {
/*
* Reads the rows from backup table recording bulk loaded hfiles
* @param tableList list of table names
* @return The keys of the Map are table, region and column family.
* Value of the map reflects whether the hfile was recorded by preCommitStoreFile hook (true)
* @return The keys of the Map are table, region and column family. Value of the map reflects
* whether the hfile was recorded by preCommitStoreFile hook (true)
*/
public Pair<Map<TableName, Map<String, Map<String, List<Pair<String, Boolean>>>>>, List<byte[]>>
readBulkloadRows(List<TableName> tableList) throws IOException {
@ -484,12 +484,13 @@ public final class BackupSystemTable implements Closeable {
Map<byte[], List<Path>> map = maps[idx];
TableName tn = sTableList.get(idx);
if (map == null) continue;
for (Map.Entry<byte[], List<Path>> entry: map.entrySet()) {
for (Map.Entry<byte[], List<Path>> entry : map.entrySet()) {
byte[] fam = entry.getKey();
List<Path> paths = entry.getValue();
for (Path p : paths) {
Put put = BackupSystemTable.createPutForBulkLoadedFile(tn, fam, p.toString(),
backupId, ts, cnt++);
Put put =
BackupSystemTable.createPutForBulkLoadedFile(tn, fam, p.toString(), backupId, ts,
cnt++);
puts.add(put);
}
}
@ -564,18 +565,23 @@ public final class BackupSystemTable implements Closeable {
}
}
public void startBackupSession() throws IOException {
if (LOG.isTraceEnabled()) {
LOG.trace("Start new backup session");
/**
* Exclusive operations are:
* create, delete, merge
* @throws IOException
*/
public void startBackupExclusiveOperation() throws IOException {
if (LOG.isDebugEnabled()) {
LOG.debug("Start new backup exclusive operation");
}
try (Table table = connection.getTable(tableName)) {
Put put = createPutForStartBackupSession();
//First try to put if row does not exist
// First try to put if row does not exist
if (!table.checkAndPut(ACTIVE_SESSION_ROW, SESSIONS_FAMILY, ACTIVE_SESSION_COL, null, put)) {
// Row exists, try to put if value == ACTIVE_SESSION_NO
if (!table.checkAndPut(ACTIVE_SESSION_ROW, SESSIONS_FAMILY, ACTIVE_SESSION_COL,
ACTIVE_SESSION_NO, put)) {
throw new IOException("There is an active backup session");
throw new IOException("There is an active backup exclusive operation");
}
}
}
@ -587,17 +593,15 @@ public final class BackupSystemTable implements Closeable {
return put;
}
public void finishBackupSession() throws IOException
{
if (LOG.isTraceEnabled()) {
LOG.trace("Stop backup session");
public void finishBackupExclusiveOperation() throws IOException {
if (LOG.isDebugEnabled()) {
LOG.debug("Finish backup exclusive operation");
}
try (Table table = connection.getTable(tableName)) {
Put put = createPutForStopBackupSession();
if(!table.checkAndPut(ACTIVE_SESSION_ROW, SESSIONS_FAMILY, ACTIVE_SESSION_COL,
ACTIVE_SESSION_YES, put))
{
throw new IOException("There is no active backup session");
if (!table.checkAndPut(ACTIVE_SESSION_ROW, SESSIONS_FAMILY, ACTIVE_SESSION_COL,
ACTIVE_SESSION_YES, put)) {
throw new IOException("There is no active backup exclusive operation");
}
}
}
@ -630,8 +634,7 @@ public final class BackupSystemTable implements Closeable {
res.advance();
Cell cell = res.current();
byte[] row = CellUtil.cloneRow(cell);
String server =
getServerNameForReadRegionServerLastLogRollResult(row);
String server = getServerNameForReadRegionServerLastLogRollResult(row);
byte[] data = CellUtil.cloneValue(cell);
rsTimestampMap.put(server, Bytes.toLong(data));
}
@ -652,8 +655,7 @@ public final class BackupSystemTable implements Closeable {
LOG.trace("write region server last roll log result to backup system table");
}
try (Table table = connection.getTable(tableName)) {
Put put =
createPutForRegionServerLastLogRollResult(server, ts, backupRoot);
Put put = createPutForRegionServerLastLogRollResult(server, ts, backupRoot);
table.put(put);
}
}
@ -685,14 +687,15 @@ public final class BackupSystemTable implements Closeable {
/**
* Get first n backup history records
* @param n number of records
* @param n number of records, if n== -1 - max number
* is ignored
* @return list of records
* @throws IOException
*/
public List<BackupInfo> getHistory(int n) throws IOException {
List<BackupInfo> history = getBackupHistory();
if (history.size() <= n) return history;
if (n == -1 || history.size() <= n) return history;
List<BackupInfo> list = new ArrayList<BackupInfo>();
for (int i = 0; i < n; i++) {
list.add(history.get(i));
@ -703,7 +706,8 @@ public final class BackupSystemTable implements Closeable {
/**
* Get backup history records filtered by list of filters.
* @param n max number of records
* @param n max number of records, if n == -1 , then max number
* is ignored
* @param filters list of filters
* @return backup records
* @throws IOException
@ -714,7 +718,7 @@ public final class BackupSystemTable implements Closeable {
List<BackupInfo> history = getBackupHistory();
List<BackupInfo> result = new ArrayList<BackupInfo>();
for (BackupInfo bi : history) {
if (result.size() == n) break;
if (n >= 0 && result.size() == n) break;
boolean passed = true;
for (int i = 0; i < filters.length; i++) {
if (!filters[i].apply(bi)) {
@ -852,9 +856,7 @@ public final class BackupSystemTable implements Closeable {
List<Put> puts = new ArrayList<Put>();
for (TableName table : tables) {
byte[] smapData = toTableServerTimestampProto(table, newTimestamps).toByteArray();
Put put =
createPutForWriteRegionServerLogTimestamp(table, smapData,
backupRoot);
Put put = createPutForWriteRegionServerLogTimestamp(table, smapData, backupRoot);
puts.add(put);
}
try (Table table = connection.getTable(tableName)) {
@ -1018,8 +1020,7 @@ public final class BackupSystemTable implements Closeable {
}
}
try (Table table = connection.getTable(tableName)) {
List<Put> puts =
createPutsForAddWALFiles(files, backupId, backupRoot);
List<Put> puts = createPutsForAddWALFiles(files, backupId, backupRoot);
table.put(puts);
}
}
@ -1087,6 +1088,7 @@ public final class BackupSystemTable implements Closeable {
* @param file name of a file to check
* @return true, if deletable, false otherwise.
* @throws IOException exception
* TODO: multiple backup destination support
*/
public boolean isWALFileDeletable(String file) throws IOException {
if (LOG.isTraceEnabled()) {
@ -1271,12 +1273,12 @@ public final class BackupSystemTable implements Closeable {
if (disjoint.length > 0 && disjoint.length != tables.length) {
Put put = createPutForBackupSet(name, disjoint);
table.put(put);
} else if(disjoint.length == tables.length) {
} else if (disjoint.length == tables.length) {
LOG.warn("Backup set '" + name + "' does not contain tables ["
+ StringUtils.join(toRemove, " ") + "]");
} else { // disjoint.length == 0 and tables.length >0
// Delete backup set
LOG.info("Backup set '"+name+"' is empty. Deleting.");
LOG.info("Backup set '" + name + "' is empty. Deleting.");
deleteBackupSet(name);
}
} finally {
@ -1356,7 +1358,7 @@ public final class BackupSystemTable implements Closeable {
}
public static String getSnapshotName(Configuration conf) {
return "snapshot_"+getTableNameAsString(conf).replace(":", "_");
return "snapshot_" + getTableNameAsString(conf).replace(":", "_");
}
/**
@ -1589,17 +1591,16 @@ public final class BackupSystemTable implements Closeable {
for (Path path : entry.getValue()) {
String file = path.toString();
int lastSlash = file.lastIndexOf("/");
String filename = file.substring(lastSlash+1);
Put put = new Put(rowkey(BULK_LOAD_PREFIX, table.toString(), BLK_LD_DELIM,
String filename = file.substring(lastSlash + 1);
Put put =
new Put(rowkey(BULK_LOAD_PREFIX, table.toString(), BLK_LD_DELIM,
Bytes.toString(region), BLK_LD_DELIM, filename));
put.addColumn(BackupSystemTable.META_FAMILY, TBL_COL, table.getName());
put.addColumn(BackupSystemTable.META_FAMILY, FAM_COL, entry.getKey());
put.addColumn(BackupSystemTable.META_FAMILY, PATH_COL,
file.getBytes());
put.addColumn(BackupSystemTable.META_FAMILY, PATH_COL, file.getBytes());
put.addColumn(BackupSystemTable.META_FAMILY, STATE_COL, BL_COMMIT);
puts.add(put);
LOG.debug("writing done bulk path " + file + " for " + table + " " +
Bytes.toString(region));
LOG.debug("writing done bulk path " + file + " for " + table + " " + Bytes.toString(region));
}
}
return puts;
@ -1607,19 +1608,16 @@ public final class BackupSystemTable implements Closeable {
public static void snapshot(Connection conn) throws IOException {
try (Admin admin = conn.getAdmin();){
try (Admin admin = conn.getAdmin();) {
Configuration conf = conn.getConfiguration();
admin.snapshot(BackupSystemTable.getSnapshotName(conf),
BackupSystemTable.getTableName(conf));
admin.snapshot(BackupSystemTable.getSnapshotName(conf), BackupSystemTable.getTableName(conf));
}
}
public static void restoreFromSnapshot(Connection conn)
throws IOException {
public static void restoreFromSnapshot(Connection conn) throws IOException {
Configuration conf = conn.getConfiguration();
LOG.debug("Restoring " + BackupSystemTable.getTableNameAsString(conf) +
" from snapshot");
LOG.debug("Restoring " + BackupSystemTable.getTableNameAsString(conf) + " from snapshot");
try (Admin admin = conn.getAdmin();) {
String snapshotName = BackupSystemTable.getSnapshotName(conf);
if (snapshotExists(admin, snapshotName)) {
@ -1631,8 +1629,8 @@ public final class BackupSystemTable implements Closeable {
// Snapshot does not exists, i.e completeBackup failed after
// deleting backup system table snapshot
// In this case we log WARN and proceed
LOG.warn("Could not restore backup system table. Snapshot " + snapshotName+
" does not exists.");
LOG.warn("Could not restore backup system table. Snapshot " + snapshotName
+ " does not exists.");
}
}
}
@ -1640,7 +1638,7 @@ public final class BackupSystemTable implements Closeable {
protected static boolean snapshotExists(Admin admin, String snapshotName) throws IOException {
List<SnapshotDescription> list = admin.listSnapshots();
for (SnapshotDescription desc: list) {
for (SnapshotDescription desc : list) {
if (desc.getName().equals(snapshotName)) {
return true;
}
@ -1648,26 +1646,25 @@ public final class BackupSystemTable implements Closeable {
return false;
}
public static boolean snapshotExists (Connection conn) throws IOException {
public static boolean snapshotExists(Connection conn) throws IOException {
return snapshotExists(conn.getAdmin(), getSnapshotName(conn.getConfiguration()));
}
public static void deleteSnapshot(Connection conn)
throws IOException {
public static void deleteSnapshot(Connection conn) throws IOException {
Configuration conf = conn.getConfiguration();
LOG.debug("Deleting " + BackupSystemTable.getSnapshotName(conf) +
" from the system");
LOG.debug("Deleting " + BackupSystemTable.getSnapshotName(conf) + " from the system");
try (Admin admin = conn.getAdmin();) {
String snapshotName = BackupSystemTable.getSnapshotName(conf);
if (snapshotExists(admin, snapshotName)) {
admin.deleteSnapshot(snapshotName);
LOG.debug("Done deleting backup system table snapshot");
} else {
LOG.error("Snapshot "+snapshotName+" does not exists");
LOG.error("Snapshot " + snapshotName + " does not exists");
}
}
}
/*
* Creates Put's for bulk load resulting from running LoadIncrementalHFiles
*/
@ -1678,17 +1675,16 @@ public final class BackupSystemTable implements Closeable {
Path path = pair.getSecond();
String file = path.toString();
int lastSlash = file.lastIndexOf("/");
String filename = file.substring(lastSlash+1);
Put put = new Put(rowkey(BULK_LOAD_PREFIX, table.toString(), BLK_LD_DELIM,
Bytes.toString(region), BLK_LD_DELIM, filename));
String filename = file.substring(lastSlash + 1);
Put put =
new Put(rowkey(BULK_LOAD_PREFIX, table.toString(), BLK_LD_DELIM, Bytes.toString(region),
BLK_LD_DELIM, filename));
put.addColumn(BackupSystemTable.META_FAMILY, TBL_COL, table.getName());
put.addColumn(BackupSystemTable.META_FAMILY, FAM_COL, family);
put.addColumn(BackupSystemTable.META_FAMILY, PATH_COL,
file.getBytes());
put.addColumn(BackupSystemTable.META_FAMILY, PATH_COL, file.getBytes());
put.addColumn(BackupSystemTable.META_FAMILY, STATE_COL, BL_PREPARE);
puts.add(put);
LOG.debug("writing raw bulk path " + file + " for " + table + " " +
Bytes.toString(region));
LOG.debug("writing raw bulk path " + file + " for " + table + " " + Bytes.toString(region));
}
return puts;
}
@ -1725,7 +1721,6 @@ public final class BackupSystemTable implements Closeable {
return get;
}
public void startDeleteOperation(String[] backupIdList) throws IOException {
if (LOG.isTraceEnabled()) {
LOG.trace("Start delete operation for backups: " + StringUtils.join(backupIdList));
@ -1765,6 +1760,96 @@ public final class BackupSystemTable implements Closeable {
}
}
private Put createPutForMergeOperation(String[] backupIdList) {
byte[] value = Bytes.toBytes(StringUtils.join(backupIdList, ","));
Put put = new Put(MERGE_OP_ROW);
put.addColumn(META_FAMILY, FAM_COL, value);
return put;
}
public boolean isMergeInProgress() throws IOException {
Get get = new Get(MERGE_OP_ROW);
try (Table table = connection.getTable(tableName)) {
Result res = table.get(get);
if (res.isEmpty()) {
return false;
}
return true;
}
}
private Put createPutForUpdateTablesForMerge(List<TableName> tables) {
byte[] value = Bytes.toBytes(StringUtils.join(tables, ","));
Put put = new Put(MERGE_OP_ROW);
put.addColumn(META_FAMILY, PATH_COL, value);
return put;
}
private Delete createDeleteForBackupMergeOperation() {
Delete delete = new Delete(MERGE_OP_ROW);
delete.addFamily(META_FAMILY);
return delete;
}
private Get createGetForMergeOperation() {
Get get = new Get(MERGE_OP_ROW);
get.addFamily(META_FAMILY);
return get;
}
public void startMergeOperation(String[] backupIdList) throws IOException {
if (LOG.isTraceEnabled()) {
LOG.trace("Start merge operation for backups: " + StringUtils.join(backupIdList));
}
Put put = createPutForMergeOperation(backupIdList);
try (Table table = connection.getTable(tableName)) {
table.put(put);
}
}
public void updateProcessedTablesForMerge(List<TableName> tables) throws IOException {
if (LOG.isTraceEnabled()) {
LOG.trace("Update tables for merge : " + StringUtils.join(tables, ","));
}
Put put = createPutForUpdateTablesForMerge(tables);
try (Table table = connection.getTable(tableName)) {
table.put(put);
}
}
public void finishMergeOperation() throws IOException {
if (LOG.isTraceEnabled()) {
LOG.trace("Finsih merge operation for backup ids ");
}
Delete delete = createDeleteForBackupMergeOperation();
try (Table table = connection.getTable(tableName)) {
table.delete(delete);
}
}
public String[] getListOfBackupIdsFromMergeOperation() throws IOException {
if (LOG.isTraceEnabled()) {
LOG.trace("Get backup ids for merge operation");
}
Get get = createGetForMergeOperation();
try (Table table = connection.getTable(tableName)) {
Result res = table.get(get);
if (res.isEmpty()) {
return null;
}
Cell cell = res.listCells().get(0);
byte[] val = CellUtil.cloneValue(cell);
if (val.length == 0) {
return null;
}
return new String(val).split(",");
}
}
static Scan createScanForOrigBulkLoadedFiles(TableName table) throws IOException {
Scan scan = new Scan();
byte[] startRow = rowkey(BULK_LOAD_PREFIX, table.toString(), BLK_LD_DELIM);
@ -1776,10 +1861,12 @@ public final class BackupSystemTable implements Closeable {
scan.setMaxVersions(1);
return scan;
}
static String getTableNameFromOrigBulkLoadRow(String rowStr) {
String[] parts = rowStr.split(BLK_LD_DELIM);
return parts[1];
}
static String getRegionNameFromOrigBulkLoadRow(String rowStr) {
// format is bulk : namespace : table : region : file
String[] parts = rowStr.split(BLK_LD_DELIM);
@ -1791,6 +1878,7 @@ public final class BackupSystemTable implements Closeable {
LOG.debug("bulk row string " + rowStr + " region " + parts[idx]);
return parts[idx];
}
/*
* Used to query bulk loaded hfiles which have been copied by incremental backup
* @param backupId the backup Id. It can be null when querying for all tables
@ -1798,13 +1886,14 @@ public final class BackupSystemTable implements Closeable {
*/
static Scan createScanForBulkLoadedFiles(String backupId) throws IOException {
Scan scan = new Scan();
byte[] startRow = backupId == null ? BULK_LOAD_PREFIX_BYTES :
rowkey(BULK_LOAD_PREFIX, backupId+BLK_LD_DELIM);
byte[] startRow =
backupId == null ? BULK_LOAD_PREFIX_BYTES : rowkey(BULK_LOAD_PREFIX, backupId
+ BLK_LD_DELIM);
byte[] stopRow = Arrays.copyOf(startRow, startRow.length);
stopRow[stopRow.length - 1] = (byte) (stopRow[stopRow.length - 1] + 1);
scan.setStartRow(startRow);
scan.setStopRow(stopRow);
//scan.setTimeRange(lower, Long.MAX_VALUE);
// scan.setTimeRange(lower, Long.MAX_VALUE);
scan.addFamily(BackupSystemTable.META_FAMILY);
scan.setMaxVersions(1);
return scan;
@ -1812,12 +1901,13 @@ public final class BackupSystemTable implements Closeable {
static Put createPutForBulkLoadedFile(TableName tn, byte[] fam, String p, String backupId,
long ts, int idx) {
Put put = new Put(rowkey(BULK_LOAD_PREFIX, backupId+BLK_LD_DELIM+ts+BLK_LD_DELIM+idx));
Put put = new Put(rowkey(BULK_LOAD_PREFIX, backupId + BLK_LD_DELIM + ts + BLK_LD_DELIM + idx));
put.addColumn(BackupSystemTable.META_FAMILY, TBL_COL, tn.getName());
put.addColumn(BackupSystemTable.META_FAMILY, FAM_COL, fam);
put.addColumn(BackupSystemTable.META_FAMILY, PATH_COL, p.getBytes());
return put;
}
/**
* Creates put list for list of WAL files
* @param files list of WAL file paths
@ -1825,8 +1915,9 @@ public final class BackupSystemTable implements Closeable {
* @return put list
* @throws IOException exception
*/
private List<Put> createPutsForAddWALFiles(List<String> files, String backupId,
String backupRoot) throws IOException {
private List<Put>
createPutsForAddWALFiles(List<String> files, String backupId, String backupRoot)
throws IOException {
List<Put> puts = new ArrayList<Put>();
for (String file : files) {
@ -1957,5 +2048,4 @@ public final class BackupSystemTable implements Closeable {
return sb.toString().getBytes();
}
}

32
hbase-server/src/main/java/org/apache/hadoop/hbase/backup/impl/RestoreTablesClient.java
View File

@ -39,7 +39,7 @@ import org.apache.hadoop.hbase.backup.BackupType;
import org.apache.hadoop.hbase.backup.HBackupFileSystem;
import org.apache.hadoop.hbase.backup.RestoreRequest;
import org.apache.hadoop.hbase.backup.impl.BackupManifest.BackupImage;
import org.apache.hadoop.hbase.backup.mapreduce.MapReduceRestoreJob;
import org.apache.hadoop.hbase.backup.util.BackupUtils;
import org.apache.hadoop.hbase.backup.util.RestoreTool;
import org.apache.hadoop.hbase.classification.InterfaceAudience;
import org.apache.hadoop.hbase.client.Admin;
@ -58,7 +58,6 @@ public class RestoreTablesClient {
private Configuration conf;
private Connection conn;
private String backupId;
private String fullBackupId;
private TableName[] sTableArray;
private TableName[] tTableArray;
private String targetRootDir;
@ -107,8 +106,7 @@ public class RestoreTablesClient {
if (existTableList.size() > 0) {
if (!isOverwrite) {
LOG.error("Existing table ("
+ existTableList
LOG.error("Existing table (" + existTableList
+ ") found in the restore target, please add "
+ "\"-overwrite\" option in the command if you mean"
+ " to restore to these existing tables");
@ -148,9 +146,8 @@ public class RestoreTablesClient {
Path tableBackupPath = HBackupFileSystem.getTableBackupPath(sTable, backupRoot, backupId);
String lastIncrBackupId = images.length == 1 ? null : images[images.length - 1].getBackupId();
// We need hFS only for full restore (see the code)
BackupManifest manifest = HBackupFileSystem.getManifest(sTable, conf, backupRoot, backupId);
BackupManifest manifest = HBackupFileSystem.getManifest(conf, backupRoot, backupId);
if (manifest.getType() == BackupType.FULL) {
fullBackupId = manifest.getBackupImage().getBackupId();
LOG.info("Restoring '" + sTable + "' to '" + tTable + "' from full" + " backup image "
+ tableBackupPath.toString());
restoreTool.fullRestoreTable(conn, tableBackupPath, sTable, tTable, truncateIfExists,
@ -169,8 +166,8 @@ public class RestoreTablesClient {
// full backup path comes first
for (int i = 1; i < images.length; i++) {
BackupImage im = images[i];
String fileBackupDir = HBackupFileSystem.getTableBackupDir(im.getRootDir(),
im.getBackupId(), sTable)+ Path.SEPARATOR+"data";
String fileBackupDir =
HBackupFileSystem.getTableBackupDataDir(im.getRootDir(), im.getBackupId(), sTable);
dirList.add(new Path(fileBackupDir));
}
@ -196,8 +193,10 @@ public class RestoreTablesClient {
TreeSet<BackupImage> restoreImageSet = new TreeSet<BackupImage>();
boolean truncateIfExists = isOverwrite;
Set<String> backupIdSet = new HashSet<>();
for (int i = 0; i < sTableArray.length; i++) {
TableName table = sTableArray[i];
BackupManifest manifest = backupManifestMap.get(table);
// Get the image list of this backup for restore in time order from old
// to new.
@ -213,11 +212,8 @@ public class RestoreTablesClient {
if (restoreImageSet != null && !restoreImageSet.isEmpty()) {
LOG.info("Restore includes the following image(s):");
for (BackupImage image : restoreImageSet) {
LOG.info("Backup: "
+ image.getBackupId()
+ " "
+ HBackupFileSystem.getTableBackupDir(image.getRootDir(), image.getBackupId(),
table));
LOG.info("Backup: " + image.getBackupId() + " "
+ HBackupFileSystem.getTableBackupDir(image.getRootDir(), image.getBackupId(), table));
if (image.getType() == BackupType.INCREMENTAL) {
backupIdSet.add(image.getBackupId());
LOG.debug("adding " + image.getBackupId() + " for bulk load");
@ -232,13 +228,13 @@ public class RestoreTablesClient {
Map<byte[], List<Path>>[] mapForSrc = table.readBulkLoadedFiles(id, sTableList);
Map<LoadQueueItem, ByteBuffer> loaderResult;
conf.setBoolean(LoadIncrementalHFiles.ALWAYS_COPY_FILES, true);
LoadIncrementalHFiles loader = MapReduceRestoreJob.createLoader(conf);
LoadIncrementalHFiles loader = BackupUtils.createLoader(conf);
for (int i = 0; i < sTableList.size(); i++) {
if (mapForSrc[i] != null && !mapForSrc[i].isEmpty()) {
loaderResult = loader.run(null, mapForSrc[i], tTableArray[i]);
LOG.debug("bulk loading " + sTableList.get(i) + " to " + tTableArray[i]);
if (loaderResult.isEmpty()) {
String msg = "Couldn't bulk load for " + sTableList.get(i) + " to " +tTableArray[i];
String msg = "Couldn't bulk load for " + sTableList.get(i) + " to " + tTableArray[i];
LOG.error(msg);
throw new IOException(msg);
}
@ -253,7 +249,7 @@ public class RestoreTablesClient {
if (backupId == null) {
return 0;
}
return Long.parseLong(backupId.substring(backupId.lastIndexOf("_")+1));
return Long.parseLong(backupId.substring(backupId.lastIndexOf("_") + 1));
}
static boolean withinRange(long a, long lower, long upper) {
@ -268,15 +264,15 @@ public class RestoreTablesClient {
// case VALIDATION:
// check the target tables
checkTargetTables(tTableArray, isOverwrite);
// case RESTORE_IMAGES:
HashMap<TableName, BackupManifest> backupManifestMap = new HashMap<>();
// check and load backup image manifest for the tables
Path rootPath = new Path(targetRootDir);
HBackupFileSystem.checkImageManifestExist(backupManifestMap, sTableArray, conf, rootPath,
backupId);
restore(backupManifestMap, sTableArray, tTableArray, isOverwrite);
}
}

321
hbase-server/src/main/java/org/apache/hadoop/hbase/backup/mapreduce/MapReduceBackupMergeJob.java Normal file
View File

@ -0,0 +1,321 @@
/**
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance
* with the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.apache.hadoop.hbase.backup.mapreduce;
import static org.apache.hadoop.hbase.backup.util.BackupUtils.succeeded;
import java.io.IOException;
import java.util.ArrayList;
import java.util.HashSet;
import java.util.List;
import java.util.Set;
import org.apache.commons.lang.StringUtils;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.apache.hadoop.conf.Configuration;
import org.apache.hadoop.fs.FileStatus;
import org.apache.hadoop.fs.FileSystem;
import org.apache.hadoop.fs.Path;
import org.apache.hadoop.hbase.TableName;
import org.apache.hadoop.hbase.backup.BackupInfo;
import org.apache.hadoop.hbase.backup.BackupMergeJob;
import org.apache.hadoop.hbase.backup.BackupRestoreConstants;
import org.apache.hadoop.hbase.backup.HBackupFileSystem;
import org.apache.hadoop.hbase.backup.impl.BackupManifest;
import org.apache.hadoop.hbase.backup.impl.BackupSystemTable;
import org.apache.hadoop.hbase.backup.util.BackupUtils;
import org.apache.hadoop.hbase.classification.InterfaceAudience;
import org.apache.hadoop.hbase.client.Connection;
import org.apache.hadoop.hbase.client.ConnectionFactory;
import org.apache.hadoop.hbase.util.Pair;
import org.apache.hadoop.util.Tool;
/**
* MapReduce implementation of {@link BackupMergeJob}
* Must be initialized with configuration of a backup destination cluster
*
*/
@InterfaceAudience.Private
public class MapReduceBackupMergeJob implements BackupMergeJob {
public static final Log LOG = LogFactory.getLog(MapReduceBackupMergeJob.class);
protected Tool player;
protected Configuration conf;
public MapReduceBackupMergeJob() {
}
@Override
public Configuration getConf() {
return conf;
}
@Override
public void setConf(Configuration conf) {
this.conf = conf;
}
@Override
public void run(String[] backupIds) throws IOException {
String bulkOutputConfKey;
// TODO : run player on remote cluster
player = new MapReduceHFileSplitterJob();
bulkOutputConfKey = MapReduceHFileSplitterJob.BULK_OUTPUT_CONF_KEY;
// Player reads all files in arbitrary directory structure and creates
// a Map task for each file
String bids = StringUtils.join(backupIds, ",");
if (LOG.isDebugEnabled()) {
LOG.debug("Merge backup images " + bids);
}
List<Pair<TableName, Path>> processedTableList = new ArrayList<Pair<TableName, Path>>();
boolean finishedTables = false;
Connection conn = ConnectionFactory.createConnection(getConf());
BackupSystemTable table = new BackupSystemTable(conn);
FileSystem fs = FileSystem.get(getConf());
try {
// Get exclusive lock on backup system
table.startBackupExclusiveOperation();
// Start merge operation
table.startMergeOperation(backupIds);
// Select most recent backup id
String mergedBackupId = findMostRecentBackupId(backupIds);
TableName[] tableNames = getTableNamesInBackupImages(backupIds);
String backupRoot = null;
BackupInfo bInfo = table.readBackupInfo(backupIds[0]);
backupRoot = bInfo.getBackupRootDir();
for (int i = 0; i < tableNames.length; i++) {
LOG.info("Merge backup images for " + tableNames[i]);
// Find input directories for table
Path[] dirPaths = findInputDirectories(fs, backupRoot, tableNames[i], backupIds);
String dirs = StringUtils.join(dirPaths, ",");
Path bulkOutputPath =
BackupUtils.getBulkOutputDir(BackupUtils.getFileNameCompatibleString(tableNames[i]),
getConf(), false);
// Delete content if exists
if (fs.exists(bulkOutputPath)) {
if (!fs.delete(bulkOutputPath, true)) {
LOG.warn("Can not delete: " + bulkOutputPath);
}
}
Configuration conf = getConf();
conf.set(bulkOutputConfKey, bulkOutputPath.toString());
String[] playerArgs = { dirs, tableNames[i].getNameAsString() };
int result = 0;
player.setConf(getConf());
result = player.run(playerArgs);
if (!succeeded(result)) {
throw new IOException("Can not merge backup images for " + dirs
+ " (check Hadoop/MR and HBase logs). Player return code =" + result);
}
// Add to processed table list
processedTableList.add(new Pair<TableName, Path>(tableNames[i], bulkOutputPath));
LOG.debug("Merge Job finished:" + result);
}
List<TableName> tableList = toTableNameList(processedTableList);
table.updateProcessedTablesForMerge(tableList);
finishedTables = true;
// Move data
for (Pair<TableName, Path> tn : processedTableList) {
moveData(fs, backupRoot, tn.getSecond(), tn.getFirst(), mergedBackupId);
}
// Delete old data and update manifest
List<String> backupsToDelete = getBackupIdsToDelete(backupIds, mergedBackupId);
deleteBackupImages(backupsToDelete, conn, fs, backupRoot);
updateBackupManifest(backupRoot, mergedBackupId, backupsToDelete);
// Finish merge session
table.finishMergeOperation();
// Release lock
table.finishBackupExclusiveOperation();
} catch (RuntimeException e) {
throw e;
} catch (Exception e) {
LOG.error(e);
if (!finishedTables) {
// cleanup bulk directories and finish merge
// merge MUST be repeated (no need for repair)
cleanupBulkLoadDirs(fs, toPathList(processedTableList));
table.finishMergeOperation();
table.finishBackupExclusiveOperation();
throw new IOException("Backup merge operation failed, you should try it again", e);
} else {
// backup repair must be run
throw new IOException(
"Backup merge operation failed, run backup repair tool to restore system's integrity",
e);
}
} finally {
table.close();
conn.close();
}
}
protected List<Path> toPathList(List<Pair<TableName, Path>> processedTableList) {
ArrayList<Path> list = new ArrayList<Path>();
for (Pair<TableName, Path> p : processedTableList) {
list.add(p.getSecond());
}
return list;
}
protected List<TableName> toTableNameList(List<Pair<TableName, Path>> processedTableList) {
ArrayList<TableName> list = new ArrayList<TableName>();
for (Pair<TableName, Path> p : processedTableList) {
list.add(p.getFirst());
}
return list;
}
protected void cleanupBulkLoadDirs(FileSystem fs, List<Path> pathList) throws IOException {
for (Path path : pathList) {
if (!fs.delete(path, true)) {
LOG.warn("Can't delete " + path);
}
}
}
protected void updateBackupManifest(String backupRoot, String mergedBackupId,
List<String> backupsToDelete) throws IllegalArgumentException, IOException {
BackupManifest manifest =
HBackupFileSystem.getManifest(conf, new Path(backupRoot), mergedBackupId);
manifest.getBackupImage().removeAncestors(backupsToDelete);
// save back
manifest.store(conf);
}
protected void deleteBackupImages(List<String> backupIds, Connection conn, FileSystem fs,
String backupRoot) throws IOException {
// Delete from backup system table
try (BackupSystemTable table = new BackupSystemTable(conn);) {
for (String backupId : backupIds) {
table.deleteBackupInfo(backupId);
}
}
// Delete from file system
for (String backupId : backupIds) {
Path backupDirPath = HBackupFileSystem.getBackupPath(backupRoot, backupId);
if (!fs.delete(backupDirPath, true)) {
LOG.warn("Could not delete " + backupDirPath);
}
}
}
protected List<String> getBackupIdsToDelete(String[] backupIds, String mergedBackupId) {
List<String> list = new ArrayList<String>();
for (String id : backupIds) {
if (id.equals(mergedBackupId)) {
continue;
}
list.add(id);
}
return list;
}
protected void moveData(FileSystem fs, String backupRoot, Path bulkOutputPath, TableName tableName,
String mergedBackupId) throws IllegalArgumentException, IOException {
Path dest =
new Path(HBackupFileSystem.getTableBackupDataDir(backupRoot, mergedBackupId, tableName));
// Delete all in dest
if (!fs.delete(dest, true)) {
throw new IOException("Could not delete " + dest);
}
FileStatus[] fsts = fs.listStatus(bulkOutputPath);
for (FileStatus fst : fsts) {
if (fst.isDirectory()) {
fs.rename(fst.getPath().getParent(), dest);
}
}
}
protected String findMostRecentBackupId(String[] backupIds) {
long recentTimestamp = Long.MIN_VALUE;
for (String backupId : backupIds) {
long ts = Long.parseLong(backupId.split("_")[1]);
if (ts > recentTimestamp) {
recentTimestamp = ts;
}
}
return BackupRestoreConstants.BACKUPID_PREFIX + recentTimestamp;
}
protected TableName[] getTableNamesInBackupImages(String[] backupIds) throws IOException {
Set<TableName> allSet = new HashSet<TableName>();
try (Connection conn = ConnectionFactory.createConnection(conf);
BackupSystemTable table = new BackupSystemTable(conn);) {
for (String backupId : backupIds) {
BackupInfo bInfo = table.readBackupInfo(backupId);
allSet.addAll(bInfo.getTableNames());
}
}
TableName[] ret = new TableName[allSet.size()];
return allSet.toArray(ret);
}
protected Path[] findInputDirectories(FileSystem fs, String backupRoot, TableName tableName,
String[] backupIds) throws IOException {
List<Path> dirs = new ArrayList<Path>();
for (String backupId : backupIds) {
Path fileBackupDirPath =
new Path(HBackupFileSystem.getTableBackupDataDir(backupRoot, backupId, tableName));
if (fs.exists(fileBackupDirPath)) {
dirs.add(fileBackupDirPath);
} else {
if (LOG.isTraceEnabled()) {
LOG.trace("File: " + fileBackupDirPath + " does not exist.");
}
}
}
Path[] ret = new Path[dirs.size()];
return dirs.toArray(ret);
}
}

12
hbase-server/src/main/java/org/apache/hadoop/hbase/backup/mapreduce/HFileSplitterJob.java → hbase-server/src/main/java/org/apache/hadoop/hbase/backup/mapreduce/MapReduceHFileSplitterJob.java
View File

@ -53,18 +53,18 @@ import org.apache.hadoop.util.ToolRunner;
* for later bulk importing.
*/
@InterfaceAudience.Private
public class HFileSplitterJob extends Configured implements Tool {
private static final Log LOG = LogFactory.getLog(HFileSplitterJob.class);
public class MapReduceHFileSplitterJob extends Configured implements Tool {
private static final Log LOG = LogFactory.getLog(MapReduceHFileSplitterJob.class);
final static String NAME = "HFileSplitterJob";
public final static String BULK_OUTPUT_CONF_KEY = "hfile.bulk.output";
public final static String TABLES_KEY = "hfile.input.tables";
public final static String TABLE_MAP_KEY = "hfile.input.tablesmap";
private final static String JOB_NAME_CONF_KEY = "mapreduce.job.name";
public HFileSplitterJob() {
public MapReduceHFileSplitterJob() {
}
protected HFileSplitterJob(final Configuration c) {
protected MapReduceHFileSplitterJob(final Configuration c) {
super(c);
}
@ -111,7 +111,7 @@ public class HFileSplitterJob extends Configured implements Tool {
Job job =
Job.getInstance(conf,
conf.get(JOB_NAME_CONF_KEY, NAME + "_" + EnvironmentEdgeManager.currentTime()));
job.setJarByClass(HFileSplitterJob.class);
job.setJarByClass(MapReduceHFileSplitterJob.class);
job.setInputFormatClass(HFileInputFormat.class);
job.setMapOutputKeyClass(ImmutableBytesWritable.class);
String hfileOutPath = conf.get(BULK_OUTPUT_CONF_KEY);
@ -164,7 +164,7 @@ public class HFileSplitterJob extends Configured implements Tool {
* @throws Exception When running the job fails.
*/
public static void main(String[] args) throws Exception {
int ret = ToolRunner.run(new HFileSplitterJob(HBaseConfiguration.create()), args);
int ret = ToolRunner.run(new MapReduceHFileSplitterJob(HBaseConfiguration.create()), args);
System.exit(ret);
}

84
hbase-server/src/main/java/org/apache/hadoop/hbase/backup/mapreduce/MapReduceRestoreJob.java
View File

@ -17,31 +17,31 @@
*/
package org.apache.hadoop.hbase.backup.mapreduce;
import static org.apache.hadoop.hbase.backup.util.BackupUtils.failed;
import static org.apache.hadoop.hbase.backup.util.BackupUtils.succeeded;
import java.io.IOException;
import org.apache.commons.lang.StringUtils;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.apache.hadoop.conf.Configuration;
import org.apache.hadoop.fs.FileSystem;
import org.apache.hadoop.fs.Path;
import org.apache.hadoop.hbase.HConstants;
import org.apache.hadoop.hbase.TableName;
import org.apache.hadoop.hbase.backup.BackupRestoreConstants;
import org.apache.hadoop.hbase.backup.RestoreJob;
import org.apache.hadoop.hbase.backup.util.BackupUtils;
import org.apache.hadoop.hbase.classification.InterfaceAudience;
import org.apache.hadoop.hbase.mapreduce.LoadIncrementalHFiles;
import org.apache.hadoop.hbase.mapreduce.WALPlayer;
import org.apache.hadoop.hbase.util.EnvironmentEdgeManager;
import org.apache.hadoop.util.Tool;
/**
* MapReduce implementation of {@link RestoreJob}
*
* For full backup restore, it runs {@link HFileSplitterJob} job and creates
* For backup restore, it runs {@link MapReduceHFileSplitterJob} job and creates
* HFiles which are aligned with a region boundaries of a table being
* restored, for incremental backup restore it runs {@link WALPlayer} in
* bulk load mode (creates HFiles from WAL edits).
* restored.
*
* The resulting HFiles then are loaded using HBase bulk load tool
* {@link LoadIncrementalHFiles}
@ -62,8 +62,8 @@ public class MapReduceRestoreJob implements RestoreJob {
String bulkOutputConfKey;
player = new HFileSplitterJob();
bulkOutputConfKey = HFileSplitterJob.BULK_OUTPUT_CONF_KEY;
player = new MapReduceHFileSplitterJob();
bulkOutputConfKey = MapReduceHFileSplitterJob.BULK_OUTPUT_CONF_KEY;
// Player reads all files in arbitrary directory structure and creates
// a Map task for each file
String dirs = StringUtils.join(dirPaths, ",");
@ -71,8 +71,8 @@ public class MapReduceRestoreJob implements RestoreJob {
if (LOG.isDebugEnabled()) {
LOG.debug("Restore " + (fullBackupRestore ? "full" : "incremental")
+ " backup from directory " + dirs + " from hbase tables "
+ StringUtils.join(tableNames, BackupRestoreConstants.TABLENAME_DELIMITER_IN_COMMAND) +
" to tables "
+ StringUtils.join(tableNames, BackupRestoreConstants.TABLENAME_DELIMITER_IN_COMMAND)
+ " to tables "
+ StringUtils.join(newTableNames, BackupRestoreConstants.TABLENAME_DELIMITER_IN_COMMAND));
}
@ -80,13 +80,16 @@ public class MapReduceRestoreJob implements RestoreJob {
LOG.info("Restore " + tableNames[i] + " into " + newTableNames[i]);
Path bulkOutputPath = getBulkOutputDir(getFileNameCompatibleString(newTableNames[i]));
Path bulkOutputPath =
BackupUtils.getBulkOutputDir(BackupUtils.getFileNameCompatibleString(newTableNames[i]),
getConf());
Configuration conf = getConf();
conf.set(bulkOutputConfKey, bulkOutputPath.toString());
String[] playerArgs =
{ dirs,
fullBackupRestore? newTableNames[i].getNameAsString():tableNames[i].getNameAsString()
};
{
dirs,
fullBackupRestore ? newTableNames[i].getNameAsString() : tableNames[i]
.getNameAsString() };
int result = 0;
int loaderResult = 0;
@ -96,7 +99,7 @@ public class MapReduceRestoreJob implements RestoreJob {
result = player.run(playerArgs);
if (succeeded(result)) {
// do bulk load
LoadIncrementalHFiles loader = createLoader(getConf());
LoadIncrementalHFiles loader = BackupUtils.createLoader(getConf());
if (LOG.isDebugEnabled()) {
LOG.debug("Restoring HFiles from directory " + bulkOutputPath);
}
@ -113,60 +116,13 @@ public class MapReduceRestoreJob implements RestoreJob {
}
LOG.debug("Restore Job finished:" + result);
} catch (Exception e) {
LOG.error(e);
throw new IOException("Can not restore from backup directory " + dirs
+ " (check Hadoop and HBase logs) ", e);
}
}
}
private String getFileNameCompatibleString(TableName table) {
return table.getNamespaceAsString() + "-" + table.getQualifierAsString();
}
private boolean failed(int result) {
return result != 0;
}
private boolean succeeded(int result) {
return result == 0;
}
public static LoadIncrementalHFiles createLoader(Configuration config) throws IOException {
// set configuration for restore:
// LoadIncrementalHFile needs more time
// <name>hbase.rpc.timeout</name> <value>600000</value>
// calculates
Integer milliSecInHour = 3600000;
Configuration conf = new Configuration(config);
conf.setInt(HConstants.HBASE_RPC_TIMEOUT_KEY, milliSecInHour);
// By default, it is 32 and loader will fail if # of files in any region exceed this
// limit. Bad for snapshot restore.
conf.setInt(LoadIncrementalHFiles.MAX_FILES_PER_REGION_PER_FAMILY, Integer.MAX_VALUE);
conf.set(LoadIncrementalHFiles.IGNORE_UNMATCHED_CF_CONF_KEY, "yes");
LoadIncrementalHFiles loader = null;
try {
loader = new LoadIncrementalHFiles(conf);
} catch (Exception e) {
throw new IOException(e);
}
return loader;
}
private Path getBulkOutputDir(String tableName) throws IOException {
Configuration conf = getConf();
FileSystem fs = FileSystem.get(conf);
String tmp =
conf.get(HConstants.TEMPORARY_FS_DIRECTORY_KEY,
HConstants.DEFAULT_TEMPORARY_HDFS_DIRECTORY);
Path path =
new Path(tmp + Path.SEPARATOR + "bulk_output-" + tableName + "-"
+ EnvironmentEdgeManager.currentTime());
fs.deleteOnExit(path);
return path;
}
@Override
public Configuration getConf() {
return conf;

91
hbase-server/src/main/java/org/apache/hadoop/hbase/backup/util/BackupUtils.java
View File

@ -56,7 +56,9 @@ import org.apache.hadoop.hbase.backup.impl.BackupManifest;
import org.apache.hadoop.hbase.backup.impl.BackupManifest.BackupImage;
import org.apache.hadoop.hbase.classification.InterfaceAudience;
import org.apache.hadoop.hbase.client.Connection;
import org.apache.hadoop.hbase.mapreduce.LoadIncrementalHFiles;
import org.apache.hadoop.hbase.regionserver.HRegion;
import org.apache.hadoop.hbase.util.EnvironmentEdgeManager;
import org.apache.hadoop.hbase.util.FSTableDescriptors;
import org.apache.hadoop.hbase.util.FSUtils;
import org.apache.hadoop.hbase.wal.AbstractFSWALProvider;
@ -68,14 +70,15 @@ import org.apache.hadoop.hbase.wal.AbstractFSWALProvider;
public final class BackupUtils {
protected static final Log LOG = LogFactory.getLog(BackupUtils.class);
public static final String LOGNAME_SEPARATOR = ".";
public static final int MILLISEC_IN_HOUR = 3600000;
private BackupUtils() {
throw new AssertionError("Instantiating utility class...");
}
/**
* Loop through the RS log timestamp map for the tables, for each RS, find the min timestamp
* value for the RS among the tables.
* Loop through the RS log timestamp map for the tables, for each RS, find the min timestamp value
* for the RS among the tables.
* @param rsLogTimestampMap timestamp map
* @return the min timestamp of each RS
*/
@ -114,16 +117,17 @@ public final class BackupUtils {
}
/**
* copy out Table RegionInfo into incremental backup image need to consider move this
* logic into HBackupFileSystem
* copy out Table RegionInfo into incremental backup image need to consider move this logic into
* HBackupFileSystem
* @param conn connection
* @param backupInfo backup info
* @param conf configuration
* @throws IOException exception
* @throws InterruptedException exception
*/
public static void copyTableRegionInfo(Connection conn, BackupInfo backupInfo,
Configuration conf) throws IOException, InterruptedException {
public static void
copyTableRegionInfo(Connection conn, BackupInfo backupInfo, Configuration conf)
throws IOException, InterruptedException {
Path rootDir = FSUtils.getRootDir(conf);
FileSystem fs = rootDir.getFileSystem(conf);
@ -152,10 +156,8 @@ public final class BackupUtils {
LOG.debug("Starting to write region info for table " + table);
for (HRegionInfo regionInfo : regions) {
Path regionDir =
HRegion.getRegionDir(new Path(backupInfo.getTableBackupDir(table)),
regionInfo);
regionDir =
new Path(backupInfo.getTableBackupDir(table), regionDir.getName());
HRegion.getRegionDir(new Path(backupInfo.getTableBackupDir(table)), regionInfo);
regionDir = new Path(backupInfo.getTableBackupDir(table), regionDir.getName());
writeRegioninfoOnFilesystem(conf, targetFs, regionDir, regionInfo);
}
LOG.debug("Finished writing region info for table " + table);
@ -301,7 +303,6 @@ public final class BackupUtils {
return ret;
}
/**
* Check whether the backup path exist
* @param backupStr backup
@ -431,8 +432,7 @@ public final class BackupUtils {
* @param conf configuration
* @throws IOException exception
*/
private static void cleanupHLogDir(BackupInfo backupInfo, Configuration conf)
throws IOException {
private static void cleanupHLogDir(BackupInfo backupInfo, Configuration conf) throws IOException {
String logDir = backupInfo.getHLogTargetDir();
if (logDir == null) {
@ -452,7 +452,6 @@ public final class BackupUtils {
}
}
private static void cleanupTargetDir(BackupInfo backupInfo, Configuration conf) {
try {
// clean up the data at target directory
@ -498,8 +497,8 @@ public final class BackupUtils {
* @param tableName table name
* @return backupPath String for the particular table
*/
public static String getTableBackupDir(String backupRootDir, String backupId,
TableName tableName) {
public static String
getTableBackupDir(String backupRootDir, String backupId, TableName tableName) {
return backupRootDir + Path.SEPARATOR + backupId + Path.SEPARATOR
+ tableName.getNamespaceAsString() + Path.SEPARATOR + tableName.getQualifierAsString()
+ Path.SEPARATOR;
@ -523,7 +522,6 @@ public final class BackupUtils {
return list;
}
/**
* Calls fs.listStatus() and treats FileNotFoundException as non-fatal This accommodates
* differences between hadoop versions, where hadoop 1 does not throw a FileNotFoundException, and
@ -662,12 +660,9 @@ public final class BackupUtils {
public static RestoreRequest createRestoreRequest(String backupRootDir, String backupId,
boolean check, TableName[] fromTables, TableName[] toTables, boolean isOverwrite) {
RestoreRequest.Builder builder = new RestoreRequest.Builder();
RestoreRequest request = builder.withBackupRootDir(backupRootDir)
.withBackupId(backupId)
.withCheck(check)
.withFromTables(fromTables)
.withToTables(toTables)
.withOvewrite(isOverwrite).build();
RestoreRequest request =
builder.withBackupRootDir(backupRootDir).withBackupId(backupId).withCheck(check)
.withFromTables(fromTables).withToTables(toTables).withOvewrite(isOverwrite).build();
return request;
}
@ -699,4 +694,54 @@ public final class BackupUtils {
return isValid;
}
public static Path getBulkOutputDir(String tableName, Configuration conf, boolean deleteOnExit)
throws IOException {
FileSystem fs = FileSystem.get(conf);
String tmp =
conf.get(HConstants.TEMPORARY_FS_DIRECTORY_KEY, HConstants.DEFAULT_TEMPORARY_HDFS_DIRECTORY);
Path path =
new Path(tmp + Path.SEPARATOR + "bulk_output-" + tableName + "-"
+ EnvironmentEdgeManager.currentTime());
if (deleteOnExit) {
fs.deleteOnExit(path);
}
return path;
}
public static Path getBulkOutputDir(String tableName, Configuration conf) throws IOException {
return getBulkOutputDir(tableName, conf, true);
}
public static String getFileNameCompatibleString(TableName table) {
return table.getNamespaceAsString() + "-" + table.getQualifierAsString();
}
public static boolean failed(int result) {
return result != 0;
}
public static boolean succeeded(int result) {
return result == 0;
}
public static LoadIncrementalHFiles createLoader(Configuration config) throws IOException {
// set configuration for restore:
// LoadIncrementalHFile needs more time
// <name>hbase.rpc.timeout</name> <value>600000</value>
// calculates
Configuration conf = new Configuration(config);
conf.setInt(HConstants.HBASE_RPC_TIMEOUT_KEY, MILLISEC_IN_HOUR);
// By default, it is 32 and loader will fail if # of files in any region exceed this
// limit. Bad for snapshot restore.
conf.setInt(LoadIncrementalHFiles.MAX_FILES_PER_REGION_PER_FAMILY, Integer.MAX_VALUE);
conf.set(LoadIncrementalHFiles.IGNORE_UNMATCHED_CF_CONF_KEY, "yes");
LoadIncrementalHFiles loader = null;
try {
loader = new LoadIncrementalHFiles(conf);
} catch (Exception e) {
throw new IOException(e);
}
return loader;
}
}

336
hbase-server/src/test/java/org/apache/hadoop/hbase/backup/TestIncrementalBackupMergeWithFailures.java Normal file
View File

@ -0,0 +1,336 @@
/**
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance
* with the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.apache.hadoop.hbase.backup;
import static org.apache.hadoop.hbase.backup.util.BackupUtils.succeeded;
import static org.junit.Assert.assertFalse;
import static org.junit.Assert.assertTrue;
import java.io.IOException;
import java.util.ArrayList;
import java.util.List;
import org.apache.commons.lang.StringUtils;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.apache.hadoop.conf.Configuration;
import org.apache.hadoop.fs.FileSystem;
import org.apache.hadoop.fs.Path;
import org.apache.hadoop.hbase.TableName;
import org.apache.hadoop.hbase.backup.impl.BackupAdminImpl;
import org.apache.hadoop.hbase.backup.impl.BackupSystemTable;
import org.apache.hadoop.hbase.backup.mapreduce.MapReduceBackupMergeJob;
import org.apache.hadoop.hbase.backup.mapreduce.MapReduceHFileSplitterJob;
import org.apache.hadoop.hbase.backup.util.BackupUtils;
import org.apache.hadoop.hbase.client.Connection;
import org.apache.hadoop.hbase.client.ConnectionFactory;
import org.apache.hadoop.hbase.client.HBaseAdmin;
import org.apache.hadoop.hbase.client.HTable;
import org.apache.hadoop.hbase.client.Table;
import org.apache.hadoop.hbase.testclassification.LargeTests;
import org.apache.hadoop.hbase.util.Pair;
import org.junit.Assert;
import org.junit.Test;
import org.junit.experimental.categories.Category;
import com.google.common.collect.Lists;
@Category(LargeTests.class)
public class TestIncrementalBackupMergeWithFailures extends TestBackupBase {
private static final Log LOG = LogFactory.getLog(TestIncrementalBackupMergeWithFailures.class);
static enum FailurePhase {
PHASE1, PHASE2, PHASE3, PHASE4
}
public final static String FAILURE_PHASE_KEY = "failurePhase";
static class BackupMergeJobWithFailures extends MapReduceBackupMergeJob {
FailurePhase failurePhase;
@Override
public void setConf(Configuration conf) {
super.setConf(conf);
String val = conf.get(FAILURE_PHASE_KEY);
if (val != null) {
failurePhase = FailurePhase.valueOf(val);
} else {
Assert.fail("Failure phase is not set");
}
}
/**
* This is the exact copy of parent's run() with injections
* of different types of failures
*/
@Override
public void run(String[] backupIds) throws IOException {
String bulkOutputConfKey;
// TODO : run player on remote cluster
player = new MapReduceHFileSplitterJob();
bulkOutputConfKey = MapReduceHFileSplitterJob.BULK_OUTPUT_CONF_KEY;
// Player reads all files in arbitrary directory structure and creates
// a Map task for each file
String bids = StringUtils.join(backupIds, ",");
if (LOG.isDebugEnabled()) {
LOG.debug("Merge backup images " + bids);
}
List<Pair<TableName, Path>> processedTableList = new ArrayList<Pair<TableName, Path>>();
boolean finishedTables = false;
Connection conn = ConnectionFactory.createConnection(getConf());
BackupSystemTable table = new BackupSystemTable(conn);
FileSystem fs = FileSystem.get(getConf());
try {
// Start backup exclusive operation
table.startBackupExclusiveOperation();
// Start merge operation
table.startMergeOperation(backupIds);
// Select most recent backup id
String mergedBackupId = findMostRecentBackupId(backupIds);
TableName[] tableNames = getTableNamesInBackupImages(backupIds);
String backupRoot = null;
BackupInfo bInfo = table.readBackupInfo(backupIds[0]);
backupRoot = bInfo.getBackupRootDir();
// PHASE 1
checkFailure(FailurePhase.PHASE1);
for (int i = 0; i < tableNames.length; i++) {
LOG.info("Merge backup images for " + tableNames[i]);
// Find input directories for table
Path[] dirPaths = findInputDirectories(fs, backupRoot, tableNames[i], backupIds);
String dirs = StringUtils.join(dirPaths, ",");
Path bulkOutputPath =
BackupUtils.getBulkOutputDir(BackupUtils.getFileNameCompatibleString(tableNames[i]),
getConf(), false);
// Delete content if exists
if (fs.exists(bulkOutputPath)) {
if (!fs.delete(bulkOutputPath, true)) {
LOG.warn("Can not delete: " + bulkOutputPath);
}
}
Configuration conf = getConf();
conf.set(bulkOutputConfKey, bulkOutputPath.toString());
String[] playerArgs = { dirs, tableNames[i].getNameAsString() };
int result = 0;
// PHASE 2
checkFailure(FailurePhase.PHASE2);
player.setConf(getConf());
result = player.run(playerArgs);
if (succeeded(result)) {
// Add to processed table list
processedTableList.add(new Pair<TableName, Path>(tableNames[i], bulkOutputPath));
} else {
throw new IOException("Can not merge backup images for " + dirs
+ " (check Hadoop/MR and HBase logs). Player return code =" + result);
}
LOG.debug("Merge Job finished:" + result);
}
List<TableName> tableList = toTableNameList(processedTableList);
// PHASE 3
checkFailure(FailurePhase.PHASE3);
table.updateProcessedTablesForMerge(tableList);
finishedTables = true;
// Move data
for (Pair<TableName, Path> tn : processedTableList) {
moveData(fs, backupRoot, tn.getSecond(), tn.getFirst(), mergedBackupId);
}
// PHASE 4
checkFailure(FailurePhase.PHASE4);
// Delete old data and update manifest
List<String> backupsToDelete = getBackupIdsToDelete(backupIds, mergedBackupId);
deleteBackupImages(backupsToDelete, conn, fs, backupRoot);
updateBackupManifest(backupRoot, mergedBackupId, backupsToDelete);
// Finish merge session
table.finishMergeOperation();
} catch (RuntimeException e) {
throw e;
} catch (Exception e) {
LOG.error(e);
if (!finishedTables) {
// cleanup bulk directories and finish merge
// merge MUST be repeated (no need for repair)
cleanupBulkLoadDirs(fs, toPathList(processedTableList));
table.finishMergeOperation();
table.finishBackupExclusiveOperation();
throw new IOException("Backup merge operation failed, you should try it again", e);
} else {
// backup repair must be run
throw new IOException(
"Backup merge operation failed, run backup repair tool to restore system's integrity",
e);
}
} finally {
table.close();
conn.close();
}
}
private void checkFailure(FailurePhase phase) throws IOException {
if ( failurePhase != null && failurePhase == phase) {
throw new IOException (phase.toString());
}
}
}
@Test
public void TestIncBackupMergeRestore() throws Exception {
int ADD_ROWS = 99;
// #1 - create full backup for all tables
LOG.info("create full backup image for all tables");
List<TableName> tables = Lists.newArrayList(table1, table2);
// Set custom Merge Job implementation
conf1.setClass(BackupRestoreFactory.HBASE_BACKUP_MERGE_IMPL_CLASS,
BackupMergeJobWithFailures.class, BackupMergeJob.class);
Connection conn = ConnectionFactory.createConnection(conf1);
HBaseAdmin admin = null;
admin = (HBaseAdmin) conn.getAdmin();
BackupAdminImpl client = new BackupAdminImpl(conn);
BackupRequest request = createBackupRequest(BackupType.FULL, tables, BACKUP_ROOT_DIR);
String backupIdFull = client.backupTables(request);
assertTrue(checkSucceeded(backupIdFull));
// #2 - insert some data to table1
HTable t1 = insertIntoTable(conn, table1, famName, 1, ADD_ROWS);
LOG.debug("writing " + ADD_ROWS + " rows to " + table1);
Assert.assertEquals(TEST_UTIL.countRows(t1), NB_ROWS_IN_BATCH + ADD_ROWS);
t1.close();
LOG.debug("written " + ADD_ROWS + " rows to " + table1);
HTable t2 = insertIntoTable(conn, table2, famName, 1, ADD_ROWS);
Assert.assertEquals(TEST_UTIL.countRows(t2), NB_ROWS_IN_BATCH + ADD_ROWS);
t2.close();
LOG.debug("written " + ADD_ROWS + " rows to " + table2);
// #3 - incremental backup for multiple tables
tables = Lists.newArrayList(table1, table2);
request = createBackupRequest(BackupType.INCREMENTAL, tables, BACKUP_ROOT_DIR);
String backupIdIncMultiple = client.backupTables(request);
assertTrue(checkSucceeded(backupIdIncMultiple));
t1 = insertIntoTable(conn, table1, famName, 2, ADD_ROWS);
t1.close();
t2 = insertIntoTable(conn, table2, famName, 2, ADD_ROWS);
t2.close();
// #3 - incremental backup for multiple tables
request = createBackupRequest(BackupType.INCREMENTAL, tables, BACKUP_ROOT_DIR);
String backupIdIncMultiple2 = client.backupTables(request);
assertTrue(checkSucceeded(backupIdIncMultiple2));
// #4 Merge backup images with failures
for ( FailurePhase phase : FailurePhase.values()) {
Configuration conf = conn.getConfiguration();
conf.set(FAILURE_PHASE_KEY, phase.toString());
try (BackupAdmin bAdmin = new BackupAdminImpl(conn);)
{
String[] backups = new String[] { backupIdIncMultiple, backupIdIncMultiple2 };
bAdmin.mergeBackups(backups);
Assert.fail("Expected IOException");
} catch (IOException e) {
BackupSystemTable table = new BackupSystemTable(conn);
if(phase.ordinal() < FailurePhase.PHASE4.ordinal()) {
// No need to repair:
// Both Merge and backup exclusive operations are finished
assertFalse(table.isMergeInProgress());
try {
table.finishBackupExclusiveOperation();
Assert.fail("IOException is expected");
} catch(IOException ee) {
// Expected
}
} else {
// Repair is required
assertTrue(table.isMergeInProgress());
try {
table.startBackupExclusiveOperation();
Assert.fail("IOException is expected");
} catch(IOException ee) {
// Expected - clean up before proceeding
table.finishMergeOperation();
table.finishBackupExclusiveOperation();
}
}
table.close();
LOG.debug("Expected :"+ e.getMessage());
}
}
// Now merge w/o failures
Configuration conf = conn.getConfiguration();
conf.unset(FAILURE_PHASE_KEY);
conf.unset(BackupRestoreFactory.HBASE_BACKUP_MERGE_IMPL_CLASS);
try (BackupAdmin bAdmin = new BackupAdminImpl(conn);) {
String[] backups = new String[] { backupIdIncMultiple, backupIdIncMultiple2 };
bAdmin.mergeBackups(backups);
}
// #6 - restore incremental backup for multiple tables, with overwrite
TableName[] tablesRestoreIncMultiple = new TableName[] { table1, table2 };
TableName[] tablesMapIncMultiple = new TableName[] { table1_restore, table2_restore };
client.restore(BackupUtils.createRestoreRequest(BACKUP_ROOT_DIR, backupIdIncMultiple2, false,
tablesRestoreIncMultiple, tablesMapIncMultiple, true));
Table hTable = conn.getTable(table1_restore);
LOG.debug("After incremental restore: " + hTable.getTableDescriptor());
LOG.debug("f1 has " + TEST_UTIL.countRows(hTable, famName) + " rows");
Assert.assertEquals(TEST_UTIL.countRows(hTable, famName), NB_ROWS_IN_BATCH + 2 * ADD_ROWS);
hTable.close();
hTable = conn.getTable(table2_restore);
Assert.assertEquals(TEST_UTIL.countRows(hTable), NB_ROWS_IN_BATCH + 2 * ADD_ROWS);
hTable.close();
admin.close();
conn.close();
}
}

2
hbase-server/src/test/java/org/apache/hadoop/hbase/backup/TestRepairAfterFailedDelete.java
View File

@ -74,7 +74,7 @@ public class TestRepairAfterFailedDelete extends TestBackupBase {
admin.restoreSnapshot(snapshotName);
admin.enableTable(BackupSystemTable.getTableName(conf1));
// Start backup session
table.startBackupSession();
table.startBackupExclusiveOperation();
// Start delete operation
table.startDeleteOperation(backupIds);