Apache
/
hbase
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

HBASE-11134 Add a -list-snapshots option to SnapshotInfo 

git-svn-id: https://svn.apache.org/repos/asf/hbase/trunk@1594854 13f79535-47bb-0310-9956-ffa450edef68
This commit is contained in:
mbertozzi 2014-05-15 10:34:38 +00:00
parent 15da21498d
commit 712ce70e2e
1 changed files with 51 additions and 3 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

54
hbase-server/src/main/java/org/apache/hadoop/hbase/snapshot/SnapshotInfo.java
View File

@ -20,13 +20,17 @@ package org.apache.hadoop.hbase.snapshot;
import java.io.IOException;
import java.io.FileNotFoundException;
import java.net.URI;
import java.text.SimpleDateFormat;
import java.util.ArrayList;
import java.util.Date;
import java.util.List;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.apache.hadoop.fs.Path;
import org.apache.hadoop.fs.FileStatus;
import org.apache.hadoop.fs.FileSystem;
import org.apache.hadoop.classification.InterfaceAudience;
import org.apache.hadoop.classification.InterfaceStability;
@ -233,6 +237,8 @@ public final class SnapshotInfo extends Configured implements Tool {
@Override
public int run(String[] args) throws IOException, InterruptedException {
final Configuration conf = getConf();
boolean listSnapshots = false;
String snapshotName = null;
boolean showSchema = false;
boolean showFiles = false;
@ -251,6 +257,13 @@ public final class SnapshotInfo extends Configured implements Tool {
showStats = true;
} else if (cmd.equals("-schema")) {
showSchema = true;
} else if (cmd.equals("-remote-dir")) {
Path sourceDir = new Path(args[++i]);
URI defaultFs = sourceDir.getFileSystem(conf).getUri();
FSUtils.setFsDefault(conf, new Path(defaultFs));
FSUtils.setRootDir(conf, sourceDir);
} else if (cmd.equals("-list-snapshots")) {
listSnapshots = true;
} else if (cmd.equals("-h") || cmd.equals("--help")) {
printUsageAndExit();
} else {
@ -262,15 +275,28 @@ public final class SnapshotInfo extends Configured implements Tool {
}
}
// List Available Snapshots
if (listSnapshots) {
SimpleDateFormat df = new SimpleDateFormat("yyyy-MM-dd'T'HH:mm:ss");
System.out.printf("%-20s | %-20s | %s%n", "SNAPSHOT", "CREATION TIME", "TABLE NAME");
for (SnapshotDescription desc: getSnapshotList(conf)) {
System.out.printf("%-20s | %20s | %s%n",
desc.getName(),
df.format(new Date(desc.getCreationTime())),
desc.getTable());
}
return 0;
}
if (snapshotName == null) {
System.err.println("Missing snapshot name!");
printUsageAndExit();
return 1;
}
Configuration conf = getConf();
fs = FileSystem.get(conf);
rootDir = FSUtils.getRootDir(conf);
fs = FileSystem.get(rootDir.toUri(), conf);
LOG.debug("fs=" + fs.getUri().toString() + " root=" + rootDir);
// Load snapshot information
if (!loadSnapshotInfo(snapshotName)) {
@ -398,6 +424,8 @@ public final class SnapshotInfo extends Configured implements Tool {
System.err.printf("Usage: bin/hbase %s [options]%n", getClass().getName());
System.err.println(" where [options] are:");
System.err.println(" -h|-help Show this help and exit.");
System.err.println(" -remote-dir Root directory that contains the snapshots.");
System.err.println(" -list-snapshots List all the available snapshots and exit.");
System.err.println(" -snapshot NAME Snapshot to examine.");
System.err.println(" -files Files and logs list.");
System.err.println(" -stats Files and logs stats.");
@ -418,7 +446,7 @@ public final class SnapshotInfo extends Configured implements Tool {
public static SnapshotStats getSnapshotStats(final Configuration conf,
final SnapshotDescription snapshot) throws IOException {
Path rootDir = FSUtils.getRootDir(conf);
FileSystem fs = FileSystem.get(conf);
FileSystem fs = FileSystem.get(rootDir.toUri(), conf);
Path snapshotDir = SnapshotDescriptionUtils.getCompletedSnapshotDir(snapshot, rootDir);
final SnapshotStats stats = new SnapshotStats(conf, fs, snapshot);
SnapshotReferenceUtil.visitReferencedFiles(conf, fs, snapshotDir, snapshot,
@ -439,6 +467,26 @@ public final class SnapshotInfo extends Configured implements Tool {
return stats;
}
/**
* Returns the list of available snapshots in the specified location
* @param conf the {@link Configuration} to use
* @return the list of snapshots
*/
public static List<SnapshotDescription> getSnapshotList(final Configuration conf)
throws IOException {
Path rootDir = FSUtils.getRootDir(conf);
FileSystem fs = FileSystem.get(rootDir.toUri(), conf);
Path snapshotDir = SnapshotDescriptionUtils.getSnapshotsDir(rootDir);
FileStatus[] snapshots = fs.listStatus(snapshotDir,
new SnapshotDescriptionUtils.CompletedSnaphotDirectoriesFilter(fs));
List<SnapshotDescription> snapshotLists =
new ArrayList<SnapshotDescription>(snapshots.length);
for (FileStatus snapshotDirStat: snapshots) {
snapshotLists.add(SnapshotDescriptionUtils.readSnapshotInfo(fs, snapshotDirStat.getPath()));
}
return snapshotLists;
}
/**
* The guts of the {@link #main} method.
* Call this method to avoid the {@link #main(String[])} System.exit.