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https://issues.apache.org/jira/browse/HDFS-2525?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Brandon Li reassigned HDFS-2525:
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Assignee: Brandon Li
> Race between BlockPoolSliceScanner and append
> ---------------------------------------------
>
> Key: HDFS-2525
> URL: https://issues.apache.org/jira/browse/HDFS-2525
> Project: Hadoop HDFS
> Issue Type: Bug
> Components: data-node
> Affects Versions: 0.23.0
> Reporter: Todd Lipcon
> Assignee: Brandon Li
> Priority: Critical
>
> I wrote a test which runs append() in a loop on a single file with a single
> replica, appending 0~100 bytes each time. If this races with the
> BlockPoolSliceScanner, I observe the BlockPoolSliceScanner getting FNFE, then
> reporting the block as bad to the NN. This causes the writer thread to loop
> forever on completeFile() since it doesn't see a valid replica.
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