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MAPREDUCE-5484. YarnChild unnecessarily loads job conf twice (Sandy Ryza) 

git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/branches/branch-2@1518858 13f79535-47bb-0310-9956-ffa450edef68
This commit is contained in:
Sanford Ryza 2013-08-29 23:53:29 +00:00
parent cd978548cf
commit 997e2f4fd3
2 changed files with 10 additions and 10 deletions
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2
hadoop-mapreduce-project/CHANGES.txt
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@ -25,6 +25,8 @@ Release 2.3.0 - UNRELEASED
OPTIMIZATIONS OPTIMIZATIONS
MAPREDUCE-5484. YarnChild unnecessarily loads job conf twice (Sandy Ryza)
BUG FIXES BUG FIXES
MAPREDUCE-5316. job -list-attempt-ids command does not handle illegal MAPREDUCE-5316. job -list-attempt-ids command does not handle illegal

16
hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-app/src/main/java/org/apache/hadoop/mapred/YarnChild.java
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@ -75,9 +75,9 @@ class YarnChild {
Thread.setDefaultUncaughtExceptionHandler(new YarnUncaughtExceptionHandler()); Thread.setDefaultUncaughtExceptionHandler(new YarnUncaughtExceptionHandler());
LOG.debug("Child starting"); LOG.debug("Child starting");
final JobConf defaultConf = new JobConf(); final JobConf job = new JobConf();
defaultConf.addResource(MRJobConfig.JOB_CONF_FILE); job.addResource(MRJobConfig.JOB_CONF_FILE);
UserGroupInformation.setConfiguration(defaultConf); UserGroupInformation.setConfiguration(job);
String host = args[0]; String host = args[0];
int port = Integer.parseInt(args[1]); int port = Integer.parseInt(args[1]);
@ -111,7 +111,7 @@ class YarnChild {
@Override @Override
public TaskUmbilicalProtocol run() throws Exception { public TaskUmbilicalProtocol run() throws Exception {
return (TaskUmbilicalProtocol)RPC.getProxy(TaskUmbilicalProtocol.class, return (TaskUmbilicalProtocol)RPC.getProxy(TaskUmbilicalProtocol.class,
TaskUmbilicalProtocol.versionID, address, defaultConf); TaskUmbilicalProtocol.versionID, address, job);
} }
}); });
@ -140,7 +140,7 @@ class YarnChild {
YarnChild.taskid = task.getTaskID(); YarnChild.taskid = task.getTaskID();
// Create the job-conf and set credentials // Create the job-conf and set credentials
final JobConf job = configureTask(task, credentials, jt); configureTask(job, task, credentials, jt);
// Initiate Java VM metrics // Initiate Java VM metrics
JvmMetrics.initSingleton(jvmId.toString(), job.getSessionId()); JvmMetrics.initSingleton(jvmId.toString(), job.getSessionId());
@ -254,9 +254,8 @@ class YarnChild {
job.set(MRJobConfig.JOB_LOCAL_DIR,workDir.toString()); job.set(MRJobConfig.JOB_LOCAL_DIR,workDir.toString());
} }
private static JobConf configureTask(Task task, Credentials credentials, private static void configureTask(JobConf job, Task task,
Token<JobTokenIdentifier> jt) throws IOException { Credentials credentials, Token<JobTokenIdentifier> jt) throws IOException {
final JobConf job = new JobConf(MRJobConfig.JOB_CONF_FILE);
job.setCredentials(credentials); job.setCredentials(credentials);
ApplicationAttemptId appAttemptId = ApplicationAttemptId appAttemptId =
@ -300,7 +299,6 @@ class YarnChild {
writeLocalJobFile(localTaskFile, job); writeLocalJobFile(localTaskFile, job);
task.setJobFile(localTaskFile.toString()); task.setJobFile(localTaskFile.toString());
task.setConf(job); task.setConf(job);
return job;
} }
/** /**