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From "LiXin Ge (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (MAPREDUCE-6903) NPE occured when run MapredTestDriver's testcase
Date Mon, 26 Mar 2018 11:05:00 GMT

     [ https://issues.apache.org/jira/browse/MAPREDUCE-6903?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

LiXin Ge updated MAPREDUCE-6903:
--------------------------------
    Status: Open  (was: Patch Available)

> NPE occured when run MapredTestDriver's testcase
> ------------------------------------------------
>
>                 Key: MAPREDUCE-6903
>                 URL: https://issues.apache.org/jira/browse/MAPREDUCE-6903
>             Project: Hadoop Map/Reduce
>          Issue Type: Bug
>          Components: test
>    Affects Versions: 3.0.0-alpha4
>            Reporter: LiXin Ge
>            Assignee: LiXin Ge
>            Priority: Major
>              Labels: easyfix
>         Attachments: MAPREDUCE-6903.001.patch, MAPREDUCE-6903.002.patch, MAPREDUCE-6903.003.patch
>
>
> When runing the timelineperformance test from MapredTestDriver without input parameter,
an NPE was throwed:
> {quote}
> ./hadoop org.apache.hadoop.test.MapredTestDriver timelineperformance
> ...
> 2017-06-08 09:32:13,194 ERROR mapreduce.SimpleEntityWriterV1: writing to the timeline
service failed
> java.lang.NullPointerException
> 	at org.apache.hadoop.yarn.client.api.impl.TimelineClientImpl.putEntities(TimelineClientImpl.java:178)
> 	at org.apache.hadoop.mapreduce.SimpleEntityWriterV1.map(SimpleEntityWriterV1.java:82)
> 	at org.apache.hadoop.mapreduce.SimpleEntityWriterV1.map(SimpleEntityWriterV1.java:41)
> 	at org.apache.hadoop.mapreduce.Mapper.run(Mapper.java:146)
> 	at org.apache.hadoop.mapred.MapTask.runNewMapper(MapTask.java:793)
> 	at org.apache.hadoop.mapred.MapTask.run(MapTask.java:341)
> 	at org.apache.hadoop.mapred.LocalJobRunner$Job$MapTaskRunnable.run(LocalJobRunner.java:271)
> 	at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
> 	at java.util.concurrent.FutureTask.run(FutureTask.java:266)
> 	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
> 	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
> 	at java.lang.Thread.run(Thread.java:745)
> {quote}
> That's better to add a protection of NULL pointer check.



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