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https://issues.apache.org/jira/browse/HDFS-1613?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Konstantin Shvachko resolved HDFS-1613.
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Resolution: Not A Problem
This is probably obsolete at this point. Resolving as No Problem.
Please feel free to reopen if the problem is still there.
> NPE running NNThroughputBenchmark
> ---------------------------------
>
> Key: HDFS-1613
> URL: https://issues.apache.org/jira/browse/HDFS-1613
> Project: Hadoop HDFS
> Issue Type: Bug
> Reporter: Todd Lipcon
>
> After the NNThroughputBenchmark completes, I see the following NPEs on the
> console:
> java.lang.NullPointerException
> at
> org.apache.hadoop.hdfs.server.namenode.BlocksMap.size(BlocksMap.java:178)
> at
> org.apache.hadoop.hdfs.server.namenode.BlockManager.getTotalBlocks(BlockManager.java:1538)
> at
> org.apache.hadoop.hdfs.server.namenode.FSNamesystem.getBlocksTotal(FSNamesystem.java:4201)
> at
> org.apache.hadoop.hdfs.server.namenode.metrics.FSNamesystemMetrics.doUpdates(FSNamesystemMetrics.java:109)
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