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https://issues.apache.org/jira/browse/CHUKWA-328?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Cheng updated CHUKWA-328:
-------------------------
Attachment: chukwa-328.patch
patch provided.
> NPE for empty chukwarecord sequence file
> ----------------------------------------
>
> Key: CHUKWA-328
> URL: https://issues.apache.org/jira/browse/CHUKWA-328
> Project: Hadoop Chukwa
> Issue Type: Bug
> Reporter: Cheng
> Assignee: Cheng
> Attachments: chukwa-328.patch
>
>
> 2009-06-23 17:21:44,307 ERROR main MetricDataLoaderPool -
> java.util.concurrent.ExecutionException: java.lang.NullPointerException
> at java.util.concurrent.FutureTask$Sync.innerGet(FutureTask.java:222)
> at java.util.concurrent.FutureTask.get(FutureTask.java:83)
> at
> org.apache.hadoop.chukwa.dataloader.MetricDataLoaderPool.load(MetricDataLoaderPool.java:49)
> at
> org.apache.hadoop.chukwa.extraction.demux.PostProcessorManager.processDemuxPigOutput(PostProcessorManager.java:188)
> at
> org.apache.hadoop.chukwa.extraction.demux.PostProcessorManager.start(PostProcessorManager.java:145)
> at
> org.apache.hadoop.chukwa.extraction.demux.PostProcessorManager.main(PostProcessorManager.java:80)
> Caused by: java.lang.NullPointerException
> at
> org.apache.hadoop.chukwa.extraction.engine.ChukwaRecord.getValue(ChukwaRecord.java:46)
> at
> org.apache.hadoop.chukwa.extraction.engine.RecordUtil.getClusterName(RecordUtil.java:14)
> at
> org.apache.hadoop.chukwa.dataloader.MetricDataLoader.run(MetricDataLoader.java:518)
> at
> org.apache.hadoop.chukwa.dataloader.MetricDataLoader.call(MetricDataLoader.java:567)
> at
> org.apache.hadoop.chukwa.dataloader.MetricDataLoader.call(MetricDataLoader.java:50)
> at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:303)
> at java.util.concurrent.FutureTask.run(FutureTask.java:138)
> at
> java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:441)
> at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:303)
> at java.util.concurrent.FutureTask.run(FutureTask.java:138)
> at
> java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:885)
> at
> java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:907)
> at java.lang.Thread.run(Thread.java:619)
> The root cause is that we should not use the ChukwaRecord if there is no
> record in the file.
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