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https://issues.apache.org/jira/browse/CHUKWA-465?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Eric Yang updated CHUKWA-465:
-----------------------------
Status: Resolved (was: Patch Available)
Resolution: Fixed
I just committed this, thanks Ahmed.
> Misconfiguration leads to NullPointerException in PostProcessorManager
> ----------------------------------------------------------------------
>
> Key: CHUKWA-465
> URL: https://issues.apache.org/jira/browse/CHUKWA-465
> Project: Hadoop Chukwa
> Issue Type: Bug
> Components: Data Processors
> Affects Versions: 0.4.0
> Environment: OS:
> Fedora 12
> Linux skinner.mustardgrain.com 2.6.32.9-70.fc12.x86_64 #1 SMP Wed Mar 3
> 04:40:41 UTC 2010 x86_64 x86_64 x86_64 GNU/Linux
> Java:
> java version "1.6.0_18"
> Java(TM) SE Runtime Environment (build 1.6.0_18-b07)
> Java HotSpot(TM) 64-Bit Server VM (build 16.0-b13, mixed mode)
> Reporter: Kirk True
> Priority: Minor
> Attachments: CHUKWA-465.patch
>
>
> I didn't know to copy chukwa-demux-conf.xml.template to chukwa-demux-conf.xml
> and got this error in postprocess.log:
> ----------------------------------------------
> 2010-03-16 16:46:18,150 INFO main PostProcessorManager - PostProcess Start,
> directory:/chukwa/postProcess/demuxOutputDir_1268783176828
> 2010-03-16 16:46:18,151 ERROR main PostProcessorManager -
> java.lang.NullPointerException
> at
> org.apache.hadoop.chukwa.extraction.demux.PostProcessorManager.processDemuxPigOutput(PostProcessorManager.java:173)
> at
> org.apache.hadoop.chukwa.extraction.demux.PostProcessorManager.start(PostProcessorManager.java:145)
> at
> org.apache.hadoop.chukwa.extraction.demux.PostProcessorManager.main(PostProcessorManager.java:80)
> 2010-03-16 16:46:18,151 WARN main PostProcessorManager - Error in
> processDemuxOutput for :/chukwa/postProcess/demuxOutputDir_1268783176828
> 2010-03-16 16:46:18,175 WARN main PostProcessorManager - Error in postProcess
> :/chukwa/postProcess/demuxOutputDir_1268783176828 has been moved
> to:/chukwa/postProcessInError//demuxOutputDir_1268783176828_1268783178154
> ----------------------------------------------
> The problem is here:
> String[] classes = conf.get(POST_DEMUX_DATA_LOADER).split(",");
> In my case (again, due to bad configuration) that configuration file is
> missing and so we end up trying to split through a null reference.
> *Note*: I got this code from trunk, revision 924074.
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