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HDFS-6150. Add inode id information in the logs to make debugging easier. Contributed by Suresh Srinivas. 

git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/trunk@1581914 13f79535-47bb-0310-9956-ffa450edef68
This commit is contained in:
Suresh Srinivas 2014-03-26 16:32:44 +00:00
parent b5935fab44
commit c00703dd08
4 changed files with 33 additions and 42 deletions
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3
hadoop-hdfs-project/hadoop-hdfs/CHANGES.txt
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@ -449,6 +449,9 @@ Release 2.4.0 - UNRELEASED
HDFS-5910. Enhance DataTransferProtocol to allow per-connection choice
of encryption/plain-text. (Benoy Antony via Arpit Agarwal)
HDFS-6150. Add inode id information in the logs to make debugging easier.
(suresh)
OPTIMIZATIONS
HDFS-5790. LeaseManager.findPath is very slow when many leases need recovery

36
hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/namenode/FSNamesystem.java
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@ -2274,8 +2274,8 @@ public class FSNamesystem implements Namesystem, FSClusterStats,
final INodesInPath iip = dir.getINodesInPath4Write(src);
final INode inode = iip.getLastINode();
if (inode != null && inode.isDirectory()) {
throw new FileAlreadyExistsException("Cannot create file " + src
+ "; already exists as a directory.");
throw new FileAlreadyExistsException(src +
" already exists as a directory");
}
final INodeFile myFile = INodeFile.valueOf(inode, src, true);
if (isPermissionEnabled) {
@ -2293,8 +2293,8 @@ public class FSNamesystem implements Namesystem, FSClusterStats,
try {
if (myFile == null) {
if (!create) {
throw new FileNotFoundException("failed to overwrite non-existent file "
+ src + " on client " + clientMachine);
throw new FileNotFoundException("Can't overwrite non-existent " +
src + " for client " + clientMachine);
}
} else {
if (overwrite) {
@ -2307,8 +2307,8 @@ public class FSNamesystem implements Namesystem, FSClusterStats,
} else {
// If lease soft limit time is expired, recover the lease
recoverLeaseInternal(myFile, src, holder, clientMachine, false);
throw new FileAlreadyExistsException("failed to create file " + src
+ " on client " + clientMachine + " because the file exists");
throw new FileAlreadyExistsException(src + " for client " +
clientMachine + " already exists");
}
}
@ -2319,8 +2319,7 @@ public class FSNamesystem implements Namesystem, FSClusterStats,
INodeFile newNode = dir.addFile(src, permissions, replication, blockSize,
holder, clientMachine, clientNode);
if (newNode == null) {
throw new IOException("DIR* NameSystem.startFile: " +
"Unable to add file to namespace.");
throw new IOException("Unable to add " + src + " to namespace");
}
leaseManager.addLease(newNode.getFileUnderConstructionFeature()
.getClientName(), src);
@ -2328,12 +2327,12 @@ public class FSNamesystem implements Namesystem, FSClusterStats,
// record file record in log, record new generation stamp
getEditLog().logOpenFile(src, newNode, logRetryEntry);
if (NameNode.stateChangeLog.isDebugEnabled()) {
NameNode.stateChangeLog.debug("DIR* NameSystem.startFile: "
+"add "+src+" to namespace for "+holder);
NameNode.stateChangeLog.debug("DIR* NameSystem.startFile: added " +
src + " inode " + newNode.getId() + " " + holder);
}
} catch (IOException ie) {
NameNode.stateChangeLog.warn("DIR* NameSystem.startFile: "
+ie.getMessage());
NameNode.stateChangeLog.warn("DIR* NameSystem.startFile: " + src + " " +
ie.getMessage());
throw ie;
}
}
@ -2373,7 +2372,7 @@ public class FSNamesystem implements Namesystem, FSClusterStats,
try {
if (inode == null) {
throw new FileNotFoundException("failed to append to non-existent file "
+ src + " on client " + clientMachine);
+ src + " for client " + clientMachine);
}
INodeFile myFile = INodeFile.valueOf(inode, src, true);
// Opening an existing file for write - may need to recover lease.
@ -2497,7 +2496,7 @@ public class FSNamesystem implements Namesystem, FSClusterStats,
lease.getHolder().equals(holder)) {
throw new AlreadyBeingCreatedException(
"failed to create file " + src + " for " + holder +
" on client " + clientMachine +
" for client " + clientMachine +
" because current leaseholder is trying to recreate file.");
}
}
@ -2510,7 +2509,7 @@ public class FSNamesystem implements Namesystem, FSClusterStats,
if (lease == null) {
throw new AlreadyBeingCreatedException(
"failed to create file " + src + " for " + holder +
" on client " + clientMachine +
" for client " + clientMachine +
" because pendingCreates is non-null but no leases found.");
}
if (force) {
@ -2543,7 +2542,7 @@ public class FSNamesystem implements Namesystem, FSClusterStats,
+ src + "], " + "lease owner [" + lease.getHolder() + "]");
} else {
throw new AlreadyBeingCreatedException("Failed to create file ["
+ src + "] for [" + holder + "] on client [" + clientMachine
+ src + "] for [" + holder + "] for client [" + clientMachine
+ "], because this file is already being created by ["
+ clientName + "] on ["
+ uc.getClientMachine() + "]");
@ -2661,9 +2660,8 @@ public class FSNamesystem implements Namesystem, FSClusterStats,
DatanodeDescriptor clientNode = null;
if(NameNode.stateChangeLog.isDebugEnabled()) {
NameNode.stateChangeLog.debug(
"BLOCK* NameSystem.getAdditionalBlock: file "
+src+" for "+clientName);
NameNode.stateChangeLog.debug("BLOCK* NameSystem.getAdditionalBlock: "
+ src + " inodeId " + fileId + " for " + clientName);
}
// Part I. Analyze the state of the file with respect to the input data.

7
hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/TestFileCreation.java
View File

@ -53,6 +53,7 @@ import org.apache.hadoop.fs.CommonConfigurationKeys;
import org.apache.hadoop.fs.CreateFlag;
import org.apache.hadoop.fs.FSDataInputStream;
import org.apache.hadoop.fs.FSDataOutputStream;
import org.apache.hadoop.fs.FileAlreadyExistsException;
import org.apache.hadoop.fs.FileSystem;
import org.apache.hadoop.fs.FsServerDefaults;
import org.apache.hadoop.fs.InvalidPathException;
@ -246,11 +247,11 @@ public class TestFileCreation {
fs.create(dir1, true); // Create path, overwrite=true
fs.close();
assertTrue("Did not prevent directory from being overwritten.", false);
} catch (IOException ie) {
if (!ie.getMessage().contains("already exists as a directory."))
throw ie;
} catch (FileAlreadyExistsException e) {
// expected
}
//
// create a new file in home directory. Do not close it.
//
Path file1 = new Path("filestatus.dat");

27
hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/TestLeaseRecovery2.java
View File

@ -198,33 +198,22 @@ public class TestLeaseRecovery2 {
private void recoverLeaseUsingCreate(Path filepath)
throws IOException, InterruptedException {
FileSystem dfs2 = getFSAsAnotherUser(conf);
boolean done = false;
for(int i = 0; i < 10 && !done; i++) {
for(int i = 0; i < 10; i++) {
AppendTestUtil.LOG.info("i=" + i);
try {
dfs2.create(filepath, false, BUF_SIZE, (short)1, BLOCK_SIZE);
fail("Creation of an existing file should never succeed.");
} catch (IOException ioe) {
final String message = ioe.getMessage();
if (message.contains("file exists")) {
AppendTestUtil.LOG.info("done", ioe);
done = true;
}
else if (message.contains(AlreadyBeingCreatedException.class.getSimpleName())) {
AppendTestUtil.LOG.info("GOOD! got " + message);
}
else {
AppendTestUtil.LOG.warn("UNEXPECTED IOException", ioe);
}
}
if (!done) {
} catch(FileAlreadyExistsException e) {
return; // expected
} catch(AlreadyBeingCreatedException e) {
return; // expected
} catch(IOException ioe) {
AppendTestUtil.LOG.warn("UNEXPECTED ", ioe);
AppendTestUtil.LOG.info("sleep " + 5000 + "ms");
try {Thread.sleep(5000);} catch (InterruptedException e) {}
}
}
assertTrue(done);
fail("recoverLeaseUsingCreate failed");
}
private void verifyFile(FileSystem dfs, Path filepath, byte[] actual,