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From "Vinod Kumar Vavilapalli (Updated) (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (MAPREDUCE-3770) [Rumen] Zombie.getJobConf() results into NPE
Date Sat, 04 Feb 2012 00:43:54 GMT

     [ https://issues.apache.org/jira/browse/MAPREDUCE-3770?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Vinod Kumar Vavilapalli updated MAPREDUCE-3770:
-----------------------------------------------

    Affects Version/s: 0.23.0
        Fix Version/s: 0.23.1

This is needed for 0.23.1.
                
> [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
>              Labels: job-name, rumen
>             Fix For: 0.23.1, 0.24.0
>
>
> 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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