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MAPREDUCE-5773. Provide dedicated MRAppMaster syslog length limit. Contributed by Gera Shegalov

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git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/trunk@1573775 13f79535-47bb-0310-9956-ffa450edef68
This commit is contained in:
Jason Darrell Lowe 2014-03-03 22:02:18 +00:00
parent c26bdddcc3
commit a756de93ef
5 changed files with 39 additions and 9 deletions
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3
hadoop-mapreduce-project/CHANGES.txt
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@ -185,6 +185,9 @@ Release 2.4.0 - UNRELEASED
MAPREDUCE-5766. Moved ping messages from TaskAttempts to be at DEBUG level
inside the ApplicationMaster log. (Jian He via vinodkv)
MAPREDUCE-5773. Provide dedicated MRAppMaster syslog length limit (Gera
Shegalov via jlowe)
OPTIMIZATIONS
BUG FIXES

6
hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-core/src/main/java/org/apache/hadoop/mapreduce/MRJobConfig.java
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@ -414,9 +414,13 @@ public interface MRJobConfig {
MR_AM_PREFIX+"log.level";
public static final String DEFAULT_MR_AM_LOG_LEVEL = "INFO";
public static final String MR_AM_LOG_KB =
MR_AM_PREFIX + "container.log.limit.kb";
public static final int DEFAULT_MR_AM_LOG_KB = 0; // don't roll
public static final String MR_AM_LOG_BACKUPS =
MR_AM_PREFIX + "container.log.backups";
public static final int DEFAULT_MR_AM_LOG_BACKUPS = 0; // don't roll
public static final int DEFAULT_MR_AM_LOG_BACKUPS = 0;
/**The number of splits when reporting progress in MR*/
public static final String MR_AM_NUM_PROGRESS_SPLITS =

8
hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-core/src/main/resources/mapred-default.xml
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@ -510,6 +510,14 @@
</description>
</property>
<property>
<name>yarn.app.mapreduce.am.container.log.limit.kb</name>
<value>0</value>
<description>The maximum size of the MRAppMaster attempt container logs in KB.
0 disables the cap.
</description>
</property>
<property>
<name>yarn.app.mapreduce.task.container.log.backups</name>
<value>0</value>

3
hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-jobclient/src/main/java/org/apache/hadoop/mapred/YARNRunner.java
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@ -391,7 +391,8 @@ public ApplicationSubmissionContext createApplicationSubmissionContext(
vargs.add(Environment.JAVA_HOME.$() + "/bin/java");
// TODO: why do we use 'conf' some places and 'jobConf' others?
long logSize = TaskLog.getTaskLogLength(new JobConf(conf));
long logSize = jobConf.getLong(MRJobConfig.MR_AM_LOG_KB,
MRJobConfig.DEFAULT_MR_AM_LOG_KB) << 10;
String logLevel = jobConf.get(
MRJobConfig.MR_AM_LOG_LEVEL, MRJobConfig.DEFAULT_MR_AM_LOG_LEVEL);
int numBackups = jobConf.getInt(MRJobConfig.MR_AM_LOG_BACKUPS,

28
hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-jobclient/src/test/java/org/apache/hadoop/mapreduce/v2/TestMRJobs.java
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@ -27,6 +27,7 @@
import java.io.StringReader;
import java.net.URI;
import java.security.PrivilegedExceptionAction;
import java.util.Arrays;
import java.util.EnumSet;
import java.util.HashMap;
import java.util.Map;
@ -442,9 +443,12 @@ public void testContainerRollingLog() throws IOException,
final SleepJob sleepJob = new SleepJob();
final JobConf sleepConf = new JobConf(mrCluster.getConfig());
sleepConf.set(MRJobConfig.MAP_LOG_LEVEL, Level.ALL.toString());
sleepConf.set(MRJobConfig.MR_AM_LOG_LEVEL, Level.ALL.toString());
sleepConf.setLong(MRJobConfig.TASK_USERLOG_LIMIT, 1);
final long userLogKb = 4;
sleepConf.setLong(MRJobConfig.TASK_USERLOG_LIMIT, userLogKb);
sleepConf.setInt(MRJobConfig.TASK_LOG_BACKUPS, 3);
sleepConf.set(MRJobConfig.MR_AM_LOG_LEVEL, Level.ALL.toString());
final long amLogKb = 7;
sleepConf.setLong(MRJobConfig.MR_AM_LOG_KB, amLogKb);
sleepConf.setInt(MRJobConfig.MR_AM_LOG_BACKUPS, 7);
sleepJob.setConf(sleepConf);
@ -503,6 +507,8 @@ public void testContainerRollingLog() throws IOException,
final FileStatus[] sysSiblings = localFs.globStatus(new Path(
containerPathComponent, TaskLog.LogName.SYSLOG + "*"));
// sort to ensure for i > 0 sysSiblings[i] == "syslog.i"
Arrays.sort(sysSiblings);
if (foundAppMaster) {
numAppMasters++;
@ -510,11 +516,19 @@ public void testContainerRollingLog() throws IOException,
numMapTasks++;
}
Assert.assertSame("Number of sylog* files",
foundAppMaster
? sleepConf.getInt(MRJobConfig.MR_AM_LOG_BACKUPS, 0) + 1
: sleepConf.getInt(MRJobConfig.TASK_LOG_BACKUPS, 0) + 1,
sysSiblings.length);
if (foundAppMaster) {
Assert.assertSame("Unexpected number of AM sylog* files",
sleepConf.getInt(MRJobConfig.MR_AM_LOG_BACKUPS, 0) + 1,
sysSiblings.length);
Assert.assertTrue("AM syslog.1 length kb should be >= " + amLogKb,
sysSiblings[1].getLen() >= amLogKb * 1024);
} else {
Assert.assertSame("Unexpected number of MR task sylog* files",
sleepConf.getInt(MRJobConfig.TASK_LOG_BACKUPS, 0) + 1,
sysSiblings.length);
Assert.assertTrue("MR syslog.1 length kb should be >= " + userLogKb,
sysSiblings[1].getLen() >= userLogKb * 1024);
}
}
}
}