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MAPREDUCE-3744. Fix the yarn logs command line. Improve error messages for mapred job -logs. (Contributed by Jason Lowe) 

git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/trunk@1239433 13f79535-47bb-0310-9956-ffa450edef68
This commit is contained in:
Siddharth Seth 2012-02-02 01:43:49 +00:00
parent ef1a619a4d
commit 6ba0375b21
4 changed files with 87 additions and 20 deletions
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3
hadoop-mapreduce-project/CHANGES.txt
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@ -654,6 +654,9 @@ Release 0.23.1 - Unreleased
MAPREDUCE-3752. Modified application limits to include queue max-capacities
besides the usual user limits. (Arun C Murthy via vinodkv)
MAPREDUCE-3744. Fix the yarn logs command line. Improve error messages for
mapred job -logs. (Jason Lowe via sseth)
Release 0.23.0 - 2011-11-01
INCOMPATIBLE CHANGES

2
hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-core/src/main/java/org/apache/hadoop/mapreduce/tools/CLI.java
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@ -345,7 +345,7 @@ public int run(String[] argv) throws Exception {
LogParams logParams = cluster.getLogParams(jobID, taskAttemptID);
LogDumper logDumper = new LogDumper();
logDumper.setConf(getConf());
logDumper.dumpAContainersLogs(logParams.getApplicationId(),
exitCode = logDumper.dumpAContainersLogs(logParams.getApplicationId(),
logParams.getContainerId(), logParams.getNodeId(),
logParams.getOwner());
} catch (IOException e) {

55
hadoop-mapreduce-project/hadoop-yarn/hadoop-yarn-common/src/main/java/org/apache/hadoop/yarn/logaggregation/LogDumper.java
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@ -21,6 +21,7 @@
import java.io.DataInputStream;
import java.io.DataOutputStream;
import java.io.EOFException;
import java.io.FileNotFoundException;
import java.io.IOException;
import org.apache.commons.cli.CommandLine;
@ -103,14 +104,15 @@ public int run(String[] args) throws Exception {
if (appOwner == null || appOwner.isEmpty()) {
appOwner = UserGroupInformation.getCurrentUser().getShortUserName();
}
int resultCode = 0;
if (containerIdStr == null && nodeAddress == null) {
dumpAllContainersLogs(appId, appOwner, out);
resultCode = dumpAllContainersLogs(appId, appOwner, out);
} else if ((containerIdStr == null && nodeAddress != null)
|| (containerIdStr != null && nodeAddress == null)) {
System.out.println("ContainerId or NodeAddress cannot be null!");
HelpFormatter formatter = new HelpFormatter();
formatter.printHelp("general options are: ", opts);
return -1;
resultCode = -1;
} else {
Path remoteRootLogDir =
new Path(getConf().get(YarnConfiguration.NM_REMOTE_APP_LOG_DIR,
@ -122,27 +124,33 @@ public int run(String[] args) throws Exception {
appId,
appOwner,
ConverterUtils.toNodeId(nodeAddress),
getConf().get(YarnConfiguration.NM_REMOTE_APP_LOG_DIR_SUFFIX,
YarnConfiguration.DEFAULT_NM_REMOTE_APP_LOG_DIR_SUFFIX)));
return dumpAContainerLogs(containerIdStr, reader, out);
LogAggregationUtils.getRemoteNodeLogDirSuffix(getConf())));
resultCode = dumpAContainerLogs(containerIdStr, reader, out);
}
return 0;
return resultCode;
}
public void dumpAContainersLogs(String appId, String containerId,
public int dumpAContainersLogs(String appId, String containerId,
String nodeId, String jobOwner) throws IOException {
Path remoteRootLogDir =
new Path(getConf().get(YarnConfiguration.NM_REMOTE_APP_LOG_DIR,
YarnConfiguration.DEFAULT_NM_REMOTE_APP_LOG_DIR));
String suffix = LogAggregationUtils.getRemoteNodeLogDirSuffix(getConf());
AggregatedLogFormat.LogReader reader =
new AggregatedLogFormat.LogReader(getConf(),
LogAggregationUtils.getRemoteNodeLogFileForApp(remoteRootLogDir,
ConverterUtils.toApplicationId(appId), jobOwner,
ConverterUtils.toNodeId(nodeId), suffix));
Path logPath = LogAggregationUtils.getRemoteNodeLogFileForApp(
remoteRootLogDir, ConverterUtils.toApplicationId(appId), jobOwner,
ConverterUtils.toNodeId(nodeId), suffix);
AggregatedLogFormat.LogReader reader;
try {
reader = new AggregatedLogFormat.LogReader(getConf(), logPath);
} catch (FileNotFoundException fnfe) {
System.out.println("Logs not available at " + logPath.toString());
System.out.println(
"Log aggregation has not completed or is not enabled.");
return -1;
}
DataOutputStream out = new DataOutputStream(System.out);
dumpAContainerLogs(containerId, reader, out);
return dumpAContainerLogs(containerId, reader, out);
}
private int dumpAContainerLogs(String containerIdStr,
@ -174,21 +182,28 @@ private int dumpAContainerLogs(String containerIdStr,
return 0;
}
private void dumpAllContainersLogs(ApplicationId appId, String appOwner,
private int dumpAllContainersLogs(ApplicationId appId, String appOwner,
DataOutputStream out) throws IOException {
Path remoteRootLogDir =
new Path(getConf().get(YarnConfiguration.NM_REMOTE_APP_LOG_DIR,
YarnConfiguration.DEFAULT_NM_REMOTE_APP_LOG_DIR));
String user = appOwner;
String logDirSuffix =
getConf().get(YarnConfiguration.NM_REMOTE_APP_LOG_DIR,
YarnConfiguration.DEFAULT_NM_REMOTE_APP_LOG_DIR_SUFFIX);
LogAggregationUtils.getRemoteNodeLogDirSuffix(getConf());
//TODO Change this to get a list of files from the LAS.
Path remoteAppLogDir =
LogAggregationUtils.getRemoteAppLogDir(remoteRootLogDir, appId, user,
logDirSuffix);
RemoteIterator<FileStatus> nodeFiles =
FileContext.getFileContext().listStatus(remoteAppLogDir);
RemoteIterator<FileStatus> nodeFiles;
try {
nodeFiles = FileContext.getFileContext().listStatus(remoteAppLogDir);
} catch (FileNotFoundException fnf) {
System.out.println("Logs not available at "
+ remoteAppLogDir.toString());
System.out.println(
"Log aggregation has not completed or is not enabled.");
return -1;
}
while (nodeFiles.hasNext()) {
FileStatus thisNodeFile = nodeFiles.next();
AggregatedLogFormat.LogReader reader =
@ -217,12 +232,14 @@ private void dumpAllContainersLogs(ApplicationId appId, String appOwner,
reader.close();
}
}
return 0;
}
public static void main(String[] args) throws Exception {
Configuration conf = new YarnConfiguration();
LogDumper logDumper = new LogDumper();
logDumper.setConf(conf);
logDumper.run(args);
int exitCode = logDumper.run(args);
System.exit(exitCode);
}
}

47
hadoop-mapreduce-project/hadoop-yarn/hadoop-yarn-common/src/test/java/org/apache/hadoop/yarn/logaggregation/TestLogDumper.java Normal file
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@ -0,0 +1,47 @@
/**
* 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.yarn.logaggregation;
import static org.junit.Assert.assertTrue;
import org.apache.hadoop.conf.Configuration;
import org.apache.hadoop.fs.FileSystem;
import org.apache.hadoop.fs.LocalFileSystem;
import org.apache.hadoop.yarn.conf.YarnConfiguration;
import org.junit.Test;
public class TestLogDumper {
@Test
public void testFailResultCodes() throws Exception {
Configuration conf = new YarnConfiguration();
conf.setClass("fs.file.impl", LocalFileSystem.class, FileSystem.class);
LogDumper dumper = new LogDumper();
dumper.setConf(conf);
// verify dumping a non-existent application's logs returns a failure code
int exitCode = dumper.run( new String[] {
"-applicationId", "application_0_0" } );
assertTrue("Should return an error code", exitCode != 0);
// verify dumping a non-existent container log is a failure code
exitCode = dumper.dumpAContainersLogs("application_0_0", "container_0_0",
"nonexistentnode:1234", "nobody");
assertTrue("Should return an error code", exitCode != 0);
}
}