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MAPREDUCE-5751. MR app master fails to start in some cases if mapreduce.job.classloader is true. Contributed by Sangjin Lee 

git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/branches/branch-2@1577555 13f79535-47bb-0310-9956-ffa450edef68
This commit is contained in:
Jason Darrell Lowe 2014-03-14 14:47:37 +00:00
parent 72cf96300b
commit 838b4d3f84
2 changed files with 5 additions and 2 deletions
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3
hadoop-mapreduce-project/CHANGES.txt
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@ -92,6 +92,9 @@ Release 2.4.0 - UNRELEASED
MAPREDUCE-5794. SliveMapper always uses default FileSystem. (szetszwo via
Arpit Agarwal)
MAPREDUCE-5751. MR app master fails to start in some cases if
mapreduce.job.classloader is true (Sangjin Lee via jlowe)
Release 2.3.1 - UNRELEASED
INCOMPATIBLE CHANGES

4
hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-app/src/main/java/org/apache/hadoop/mapreduce/v2/app/MRAppMaster.java
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@ -1066,6 +1066,8 @@ public class MRAppMaster extends CompositeService {
//start all the components
super.serviceStart();
// set job classloader if configured
MRApps.setJobClassLoader(getConfig());
// All components have started, start the job.
startJobs();
}
@ -1376,8 +1378,6 @@ public class MRAppMaster extends CompositeService {
// SIGTERM I have a chance to write out the job history. I'll be closing
// the objects myself.
conf.setBoolean("fs.automatic.close", false);
// set job classloader if configured
MRApps.setJobClassLoader(conf);
initAndStartAppMaster(appMaster, conf, jobUserName);
} catch (Throwable t) {
LOG.fatal("Error starting MRAppMaster", t);