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
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@ -25,6 +25,8 @@ Release 2.3.0 - UNRELEASED
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OPTIMIZATIONS
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MAPREDUCE-5484. YarnChild unnecessarily loads job conf twice (Sandy Ryza)
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BUG FIXES
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MAPREDUCE-5316. job -list-attempt-ids command does not handle illegal
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@ -75,9 +75,9 @@ class YarnChild {
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Thread.setDefaultUncaughtExceptionHandler(new YarnUncaughtExceptionHandler());
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LOG.debug("Child starting");
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final JobConf defaultConf = new JobConf();
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defaultConf.addResource(MRJobConfig.JOB_CONF_FILE);
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UserGroupInformation.setConfiguration(defaultConf);
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final JobConf job = new JobConf();
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job.addResource(MRJobConfig.JOB_CONF_FILE);
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UserGroupInformation.setConfiguration(job);
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String host = args[0];
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int port = Integer.parseInt(args[1]);
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@ -111,7 +111,7 @@ class YarnChild {
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@Override
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public TaskUmbilicalProtocol run() throws Exception {
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return (TaskUmbilicalProtocol)RPC.getProxy(TaskUmbilicalProtocol.class,
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TaskUmbilicalProtocol.versionID, address, defaultConf);
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TaskUmbilicalProtocol.versionID, address, job);
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}
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});
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@ -140,7 +140,7 @@ class YarnChild {
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YarnChild.taskid = task.getTaskID();
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// Create the job-conf and set credentials
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final JobConf job = configureTask(task, credentials, jt);
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configureTask(job, task, credentials, jt);
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// Initiate Java VM metrics
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JvmMetrics.initSingleton(jvmId.toString(), job.getSessionId());
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@ -254,11 +254,10 @@ class YarnChild {
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job.set(MRJobConfig.JOB_LOCAL_DIR,workDir.toString());
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}
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private static JobConf configureTask(Task task, Credentials credentials,
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Token<JobTokenIdentifier> jt) throws IOException {
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final JobConf job = new JobConf(MRJobConfig.JOB_CONF_FILE);
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private static void configureTask(JobConf job, Task task,
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Credentials credentials, Token<JobTokenIdentifier> jt) throws IOException {
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job.setCredentials(credentials);
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ApplicationAttemptId appAttemptId =
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ConverterUtils.toContainerId(
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System.getenv(Environment.CONTAINER_ID.name()))
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@ -300,7 +299,6 @@ class YarnChild {
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writeLocalJobFile(localTaskFile, job);
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task.setJobFile(localTaskFile.toString());
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task.setConf(job);
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return job;
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}
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/**
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