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HADOOP-8689. Make trash a server side configuration option. Contributed by Eli Collins 

git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/trunk@1374472 13f79535-47bb-0310-9956-ffa450edef68
This commit is contained in:
Eli Collins 2012-08-17 23:22:17 +00:00
parent 31cb5a7fa5
commit 18c5bc86ca
13 changed files with 127 additions and 35 deletions
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2
hadoop-common-project/hadoop-common/CHANGES.txt
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@ -198,6 +198,8 @@ Branch-2 ( Unreleased changes )
HADOOP-8388. Remove unused BlockLocation serialization.
(Colin Patrick McCabe via eli)
HADOOP-8689. Make trash a server side configuration option. (eli)
NEW FEATURES
HDFS-3042. Automatic failover support for NameNode HA (todd)

4
hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/fs/FileSystem.java
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@ -661,7 +661,9 @@ public FsServerDefaults getServerDefaults() throws IOException {
64 * 1024,
getDefaultReplication(),
conf.getInt("io.file.buffer.size", 4096),
false);
false,
// NB: ignoring the client trash configuration
CommonConfigurationKeysPublic.FS_TRASH_INTERVAL_DEFAULT);
}
/**

8
hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/fs/FsServerDefaults.java
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@ -49,19 +49,21 @@ public Writable newInstance() {
private short replication;
private int fileBufferSize;
private boolean encryptDataTransfer;
private long trashInterval;
public FsServerDefaults() {
}
public FsServerDefaults(long blockSize, int bytesPerChecksum,
int writePacketSize, short replication, int fileBufferSize,
boolean encryptDataTransfer) {
boolean encryptDataTransfer, long trashInterval) {
this.blockSize = blockSize;
this.bytesPerChecksum = bytesPerChecksum;
this.writePacketSize = writePacketSize;
this.replication = replication;
this.fileBufferSize = fileBufferSize;
this.encryptDataTransfer = encryptDataTransfer;
this.trashInterval = trashInterval;
}
public long getBlockSize() {
@ -88,6 +90,10 @@ public boolean getEncryptDataTransfer() {
return encryptDataTransfer;
}
public long getTrashInterval() {
return trashInterval;
}
// /////////////////////////////////////////
// Writable
// /////////////////////////////////////////

45
hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/fs/TrashPolicyDefault.java
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@ -34,7 +34,6 @@
import org.apache.hadoop.classification.InterfaceAudience;
import org.apache.hadoop.classification.InterfaceStability;
import org.apache.hadoop.conf.Configuration;
import org.apache.hadoop.conf.Configured;
import org.apache.hadoop.fs.Options.Rename;
import org.apache.hadoop.fs.permission.FsAction;
import org.apache.hadoop.fs.permission.FsPermission;
@ -66,6 +65,7 @@ public class TrashPolicyDefault extends TrashPolicy {
private Path current;
private Path homesParent;
private long emptierInterval;
public TrashPolicyDefault() { }
@ -79,8 +79,27 @@ public void initialize(Configuration conf, FileSystem fs, Path home) {
this.trash = new Path(home, TRASH);
this.homesParent = home.getParent();
this.current = new Path(trash, CURRENT);
this.deletionInterval = (long) (conf.getFloat(FS_TRASH_INTERVAL_KEY,
FS_TRASH_INTERVAL_DEFAULT) * MSECS_PER_MINUTE);
long trashInterval = 0;
try {
trashInterval = fs.getServerDefaults(home).getTrashInterval();
} catch (IOException ioe) {
LOG.warn("Unable to get server defaults", ioe);
}
// If the trash interval is not configured or is disabled on the
// server side then check the config which may be client side.
if (0 == trashInterval) {
this.deletionInterval = (long)(conf.getFloat(
FS_TRASH_INTERVAL_KEY, FS_TRASH_INTERVAL_DEFAULT)
* MSECS_PER_MINUTE);
} else {
this.deletionInterval = trashInterval * MSECS_PER_MINUTE;
}
// For the checkpoint interval use the given config instead of
// checking the server as it's OK if a client starts an emptier
// with a different interval than the server.
this.emptierInterval = (long)(conf.getFloat(
FS_TRASH_CHECKPOINT_INTERVAL_KEY, FS_TRASH_CHECKPOINT_INTERVAL_DEFAULT)
* MSECS_PER_MINUTE);
}
private Path makeTrashRelativePath(Path basePath, Path rmFilePath) {
@ -89,7 +108,7 @@ private Path makeTrashRelativePath(Path basePath, Path rmFilePath) {
@Override
public boolean isEnabled() {
return (deletionInterval != 0);
return deletionInterval != 0;
}
@Override
@ -223,7 +242,7 @@ public Path getCurrentTrashDir() {
@Override
public Runnable getEmptier() throws IOException {
return new Emptier(getConf());
return new Emptier(getConf(), emptierInterval);
}
private class Emptier implements Runnable {
@ -231,16 +250,14 @@ private class Emptier implements Runnable {
private Configuration conf;
private long emptierInterval;
Emptier(Configuration conf) throws IOException {
Emptier(Configuration conf, long emptierInterval) throws IOException {
this.conf = conf;
this.emptierInterval = (long) (conf.getFloat(FS_TRASH_CHECKPOINT_INTERVAL_KEY,
FS_TRASH_CHECKPOINT_INTERVAL_DEFAULT) *
MSECS_PER_MINUTE);
if (this.emptierInterval > deletionInterval ||
this.emptierInterval == 0) {
LOG.warn("The configured interval for checkpoint is " +
this.emptierInterval + " minutes." +
" Using interval of " + deletionInterval +
this.emptierInterval = emptierInterval;
if (emptierInterval > deletionInterval || emptierInterval == 0) {
LOG.info("The configured checkpoint interval is " +
(emptierInterval / MSECS_PER_MINUTE) + " minutes." +
" Using an interval of " +
(deletionInterval / MSECS_PER_MINUTE) +
" minutes that is used for deletion instead");
this.emptierInterval = deletionInterval;
}

4
hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/fs/ftp/FtpConfigKeys.java
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@ -45,6 +45,7 @@ public class FtpConfigKeys extends CommonConfigurationKeys {
"ftp.client-write-packet-size";
public static final int CLIENT_WRITE_PACKET_SIZE_DEFAULT = 64*1024;
public static final boolean ENCRYPT_DATA_TRANSFER_DEFAULT = false;
public static final long FS_TRASH_INTERVAL_DEFAULT = 0;
protected static FsServerDefaults getServerDefaults() throws IOException {
return new FsServerDefaults(
@ -53,7 +54,8 @@ protected static FsServerDefaults getServerDefaults() throws IOException {
CLIENT_WRITE_PACKET_SIZE_DEFAULT,
REPLICATION_DEFAULT,
STREAM_BUFFER_SIZE_DEFAULT,
ENCRYPT_DATA_TRANSFER_DEFAULT);
ENCRYPT_DATA_TRANSFER_DEFAULT,
FS_TRASH_INTERVAL_DEFAULT);
}
}

4
hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/fs/local/LocalConfigKeys.java
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@ -44,6 +44,7 @@ public class LocalConfigKeys extends CommonConfigurationKeys {
"file.client-write-packet-size";
public static final int CLIENT_WRITE_PACKET_SIZE_DEFAULT = 64*1024;
public static final boolean ENCRYPT_DATA_TRANSFER_DEFAULT = false;
public static final long FS_TRASH_INTERVAL_DEFAULT = 0;
public static FsServerDefaults getServerDefaults() throws IOException {
return new FsServerDefaults(
@ -52,7 +53,8 @@ public static FsServerDefaults getServerDefaults() throws IOException {
CLIENT_WRITE_PACKET_SIZE_DEFAULT,
REPLICATION_DEFAULT,
STREAM_BUFFER_SIZE_DEFAULT,
ENCRYPT_DATA_TRANSFER_DEFAULT);
ENCRYPT_DATA_TRANSFER_DEFAULT,
FS_TRASH_INTERVAL_DEFAULT);
}
}

11
hadoop-common-project/hadoop-common/src/main/resources/core-default.xml
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@ -351,8 +351,12 @@
<name>fs.trash.interval</name>
<value>0</value>
<description>Number of minutes after which the checkpoint
gets deleted.
If zero, the trash feature is disabled.
gets deleted. If zero, the trash feature is disabled.
This option may be configured both on the server and the
client. If trash is disabled server side then the client
side configuration is checked. If trash is enabled on the
server side then the value configured on the server is
used and the client configuration value is ignored.
</description>
</property>
@ -360,7 +364,8 @@
<name>fs.trash.checkpoint.interval</name>
<value>0</value>
<description>Number of minutes between trash checkpoints.
Should be smaller or equal to fs.trash.interval.
Should be smaller or equal to fs.trash.interval. If zero,
the value is set to the value of fs.trash.interval.
Every time the checkpointer runs it creates a new checkpoint
out of current and removes checkpoints created more than
fs.trash.interval minutes ago.

8
hadoop-common-project/hadoop-common/src/test/java/org/apache/hadoop/fs/TestTrash.java
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@ -111,10 +111,10 @@ public static void trashShell(final Configuration conf, final Path base,
throws IOException {
FileSystem fs = FileSystem.get(conf);
conf.set(FS_TRASH_INTERVAL_KEY, "0"); // disabled
conf.setLong(FS_TRASH_INTERVAL_KEY, 0); // disabled
assertFalse(new Trash(conf).isEnabled());
conf.set(FS_TRASH_INTERVAL_KEY, "10"); // 10 minute
conf.setLong(FS_TRASH_INTERVAL_KEY, 10); // 10 minute
assertTrue(new Trash(conf).isEnabled());
FsShell shell = new FsShell();
@ -435,7 +435,7 @@ public static void trashShell(final Configuration conf, final Path base,
}
public static void trashNonDefaultFS(Configuration conf) throws IOException {
conf.set(FS_TRASH_INTERVAL_KEY, "10"); // 10 minute
conf.setLong(FS_TRASH_INTERVAL_KEY, 10); // 10 minute
// attempt non-default FileSystem trash
{
final FileSystem lfs = FileSystem.getLocal(conf);
@ -580,7 +580,7 @@ public static void performanceTestDeleteSameFile() throws IOException{
FileSystem fs = FileSystem.getLocal(conf);
conf.set("fs.defaultFS", fs.getUri().toString());
conf.set(FS_TRASH_INTERVAL_KEY, "10"); //minutes..
conf.setLong(FS_TRASH_INTERVAL_KEY, 10); //minutes..
FsShell shell = new FsShell();
shell.setConf(conf);
//Path trashRoot = null;

6
hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/protocolPB/PBHelper.java
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@ -1002,7 +1002,8 @@ public static FsServerDefaults convert(FsServerDefaultsProto fs) {
fs.getBlockSize(), fs.getBytesPerChecksum(),
fs.getWritePacketSize(), (short) fs.getReplication(),
fs.getFileBufferSize(),
fs.getEncryptDataTransfer());
fs.getEncryptDataTransfer(),
fs.getTrashInterval());
}
public static FsServerDefaultsProto convert(FsServerDefaults fs) {
@ -1013,7 +1014,8 @@ public static FsServerDefaultsProto convert(FsServerDefaults fs) {
setWritePacketSize(fs.getWritePacketSize())
.setReplication(fs.getReplication())
.setFileBufferSize(fs.getFileBufferSize())
.setEncryptDataTransfer(fs.getEncryptDataTransfer()).build();
.setEncryptDataTransfer(fs.getEncryptDataTransfer())
.setTrashInterval(fs.getTrashInterval()).build();
}
public static FsPermissionProto convert(FsPermission p) {

6
hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/namenode/FSNamesystem.java
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@ -19,6 +19,8 @@
import static org.apache.hadoop.fs.CommonConfigurationKeysPublic.IO_FILE_BUFFER_SIZE_DEFAULT;
import static org.apache.hadoop.fs.CommonConfigurationKeysPublic.IO_FILE_BUFFER_SIZE_KEY;
import static org.apache.hadoop.fs.CommonConfigurationKeysPublic.FS_TRASH_INTERVAL_KEY;
import static org.apache.hadoop.fs.CommonConfigurationKeysPublic.FS_TRASH_INTERVAL_DEFAULT;
import static org.apache.hadoop.hdfs.DFSConfigKeys.DFS_BLOCK_SIZE_DEFAULT;
import static org.apache.hadoop.hdfs.DFSConfigKeys.DFS_BLOCK_SIZE_KEY;
import static org.apache.hadoop.hdfs.DFSConfigKeys.DFS_BYTES_PER_CHECKSUM_DEFAULT;
@ -104,6 +106,7 @@
import org.apache.hadoop.HadoopIllegalArgumentException;
import org.apache.hadoop.classification.InterfaceAudience;
import org.apache.hadoop.conf.Configuration;
import org.apache.hadoop.fs.CommonConfigurationKeysPublic;
import org.apache.hadoop.fs.ContentSummary;
import org.apache.hadoop.fs.CreateFlag;
import org.apache.hadoop.fs.FileAlreadyExistsException;
@ -479,7 +482,8 @@ public static FSNamesystem loadFromDisk(Configuration conf,
conf.getInt(DFS_CLIENT_WRITE_PACKET_SIZE_KEY, DFS_CLIENT_WRITE_PACKET_SIZE_DEFAULT),
(short) conf.getInt(DFS_REPLICATION_KEY, DFS_REPLICATION_DEFAULT),
conf.getInt(IO_FILE_BUFFER_SIZE_KEY, IO_FILE_BUFFER_SIZE_DEFAULT),
conf.getBoolean(DFS_ENCRYPT_DATA_TRANSFER_KEY, DFS_ENCRYPT_DATA_TRANSFER_DEFAULT));
conf.getBoolean(DFS_ENCRYPT_DATA_TRANSFER_KEY, DFS_ENCRYPT_DATA_TRANSFER_DEFAULT),
conf.getLong(FS_TRASH_INTERVAL_KEY, FS_TRASH_INTERVAL_DEFAULT));
this.maxFsObjects = conf.getLong(DFS_NAMENODE_MAX_OBJECTS_KEY,
DFS_NAMENODE_MAX_OBJECTS_DEFAULT);

4
hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/namenode/NameNode.java
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@ -511,9 +511,7 @@ private void stopCommonServices() {
}
private void startTrashEmptier(Configuration conf) throws IOException {
long trashInterval = conf.getLong(
CommonConfigurationKeys.FS_TRASH_INTERVAL_KEY,
CommonConfigurationKeys.FS_TRASH_INTERVAL_DEFAULT);
long trashInterval = namesystem.getServerDefaults().getTrashInterval();
if (trashInterval == 0) {
return;
} else if (trashInterval < 0) {

1
hadoop-hdfs-project/hadoop-hdfs/src/main/proto/hdfs.proto
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@ -188,6 +188,7 @@ message FsServerDefaultsProto {
required uint32 replication = 4; // Actually a short - only 16 bits used
required uint32 fileBufferSize = 5;
optional bool encryptDataTransfer = 6 [default = false];
optional uint64 trashInterval = 7 [default = 0];
}

59
hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/TestHDFSTrash.java
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@ -23,12 +23,18 @@
import org.apache.hadoop.fs.FileSystem;
import org.apache.hadoop.fs.Path;
import org.apache.hadoop.fs.TestTrash;
import org.apache.hadoop.fs.Trash;
import static org.apache.hadoop.fs.CommonConfigurationKeysPublic.FS_TRASH_INTERVAL_KEY;
import static org.junit.Assert.assertFalse;
import static org.junit.Assert.assertTrue;
import org.junit.AfterClass;
import org.junit.BeforeClass;
import org.junit.Test;
/**
* This class tests commands from Trash.
* Test trash using HDFS
*/
public class TestHDFSTrash {
private static MiniDFSCluster cluster = null;
@ -44,9 +50,6 @@ public static void tearDown() {
if (cluster != null) { cluster.shutdown(); }
}
/**
* Tests Trash on HDFS
*/
@Test
public void testTrash() throws IOException {
TestTrash.trashShell(cluster.getFileSystem(), new Path("/"));
@ -60,4 +63,52 @@ public void testNonDefaultFS() throws IOException {
TestTrash.trashNonDefaultFS(conf);
}
/** Clients should always use trash if enabled server side */
@Test
public void testTrashEnabledServerSide() throws IOException {
Configuration serverConf = new HdfsConfiguration();
Configuration clientConf = new Configuration();
// Enable trash on the server and client
serverConf.setLong(FS_TRASH_INTERVAL_KEY, 1);
clientConf.setLong(FS_TRASH_INTERVAL_KEY, 1);
MiniDFSCluster cluster2 = null;
try {
cluster2 = new MiniDFSCluster.Builder(serverConf).numDataNodes(1).build();
FileSystem fs = cluster2.getFileSystem();
assertTrue(new Trash(fs, clientConf).isEnabled());
// Disabling trash on the client is ignored
clientConf.setLong(FS_TRASH_INTERVAL_KEY, 0);
assertTrue(new Trash(fs, clientConf).isEnabled());
} finally {
if (cluster2 != null) cluster2.shutdown();
}
}
/** Clients should always use trash if enabled client side */
@Test
public void testTrashEnabledClientSide() throws IOException {
Configuration serverConf = new HdfsConfiguration();
Configuration clientConf = new Configuration();
// Disable server side
serverConf.setLong(FS_TRASH_INTERVAL_KEY, 0);
MiniDFSCluster cluster2 = null;
try {
cluster2 = new MiniDFSCluster.Builder(serverConf).numDataNodes(1).build();
// Client side is disabled by default
FileSystem fs = cluster2.getFileSystem();
assertFalse(new Trash(fs, clientConf).isEnabled());
// Enabling on the client works even though its disabled on the server
clientConf.setLong(FS_TRASH_INTERVAL_KEY, 1);
assertTrue(new Trash(fs, clientConf).isEnabled());
} finally {
if (cluster2 != null) cluster2.shutdown();
}
}
}