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Date: Wed, 8 Feb 2012 13:18:00 +0000 (UTC)
From: "Hudson (Commented) (JIRA)" <jira@apache.org>
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Subject: [jira] [Commented] (MAPREDUCE-3770) [Rumen] Zombie.getJobConf()
 results into NPE
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    [ https://issues.apache.org/jira/browse/MAPREDUCE-3770?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13203566#comment-13203566 ] 

Hudson commented on MAPREDUCE-3770:
-----------------------------------

Integrated in Hadoop-Mapreduce-0.23-Build #185 (See [https://builds.apache.org/job/Hadoop-Mapreduce-0.23-Build/185/])
    MAPREDUCE-3770. Zombie.getJobConf() results into NPE. (amarrk)

amarrk : http://svn.apache.org/viewcvs.cgi/?root=Apache-SVN&view=rev&rev=1241865
Files : 
* /hadoop/common/branches/branch-0.23/hadoop-mapreduce-project/CHANGES.txt
* /hadoop/common/branches/branch-0.23/hadoop-tools/hadoop-rumen/src/main/java/org/apache/hadoop/tools/rumen/ZombieJob.java

                
> [Rumen] Zombie.getJobConf() results into NPE
> --------------------------------------------
>
>                 Key: MAPREDUCE-3770
>                 URL: https://issues.apache.org/jira/browse/MAPREDUCE-3770
>             Project: Hadoop Map/Reduce
>          Issue Type: Bug
>          Components: tools/rumen
>    Affects Versions: 0.23.0, 0.24.0
>            Reporter: Amar Kamat
>            Assignee: Amar Kamat
>            Priority: Critical
>              Labels: job-name, rumen
>             Fix For: 0.23.1
>
>         Attachments: GridmixJobNameBug-v1.0.patch
>
>
> The error trace is as follows
> {code}
> java.lang.NullPointerException
>         at java.util.Hashtable.put(Hashtable.java:394)
>         at java.util.Properties.setProperty(Properties.java:143)
>         at org.apache.hadoop.conf.Configuration.set(Configuration.java:623)
>         at org.apache.hadoop.mapred.JobConf.setJobName(JobConf.java:1322)
>         at org.apache.hadoop.tools.rumen.ZombieJob.getJobConf(ZombieJob.java:139)
>         at org.apache.hadoop.mapred.gridmix.DistributedCacheEmulator.updateHDFSDistCacheFilesList(DistributedCacheEmulator.java:315)
>         at org.apache.hadoop.mapred.gridmix.DistributedCacheEmulator.buildDistCacheFilesList(DistributedCacheEmulator.java:280)
>         at org.apache.hadoop.mapred.gridmix.DistributedCacheEmulator.setupGenerateDistCacheData(DistributedCacheEmulator.java:253)
>         at org.apache.hadoop.mapred.gridmix.Gridmix.setupDistCacheEmulation(Gridmix.java:528)
>         at org.apache.hadoop.mapred.gridmix.Gridmix.setupEmulation(Gridmix.java:501)
>         at org.apache.hadoop.mapred.gridmix.Gridmix.start(Gridmix.java:433)
>         at org.apache.hadoop.mapred.gridmix.Gridmix.runJob(Gridmix.java:380)
>         at org.apache.hadoop.mapred.gridmix.Gridmix.access$000(Gridmix.java:56)
>         at org.apache.hadoop.mapred.gridmix.Gridmix$1.run(Gridmix.java:313)
>         at org.apache.hadoop.mapred.gridmix.Gridmix$1.run(Gridmix.java:311)
>         at java.security.AccessController.doPrivileged(Native Method)
>         at javax.security.auth.Subject.doAs(Subject.java:396)
>         at org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1157)
>         at org.apache.hadoop.mapred.gridmix.Gridmix.run(Gridmix.java:311)
>         at org.apache.hadoop.util.ToolRunner.run(ToolRunner.java:69)
>         at org.apache.hadoop.mapred.gridmix.Gridmix.main(Gridmix.java:606)
>         at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
>         at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
>         at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
>         at java.lang.reflect.Method.invoke(Method.java:597)
>         at org.apache.hadoop.util.RunJar.main(RunJar.java:200)
> {code}
> The bug seems to be in {{ZombieJob#getName()}} where a not-null check for jobName.getValue() is missing. 

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