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https://issues.apache.org/jira/browse/HDFS-812?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Konstantin Boudnik updated HDFS-812:
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Attachment: HDFS-812.patch
This patch includes new test which illustrate the problem. NB: the test's
contract might have to be changed depending on the resolution of the JIRA
itself.
> FSNamesystem#internalReleaseLease will throw ArrayIndexOutOfBoundException on
> an empty file's lease recovery
> ------------------------------------------------------------------------------------------------------------
>
> Key: HDFS-812
> URL: https://issues.apache.org/jira/browse/HDFS-812
> Project: Hadoop HDFS
> Issue Type: Bug
> Components: name-node
> Affects Versions: 0.21.0, 0.22.0
> Reporter: Konstantin Boudnik
> Attachments: HDFS-812.patch
>
>
> {{FSNamesystem.internalReleaseLease()}} uses the result of
> {{iFile#numBlocks();}} call to get a number of an under construction file's
> blocks. {{numBlock()}} can return 0 if the file doesn't have any blocks yet.
> This will cause {{internalReleaseLease()}} to throw
> ArrayIndexOutOfBoundException
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