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https://issues.apache.org/jira/browse/HDFS-7282?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14186131#comment-14186131
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Colin Patrick McCabe commented on HDFS-7282:
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+1. Thanks, Jinghui.
> TestShortCircuitCache and TestBlockReaderFactory have failures caused by
> TemporarySocketDirectory getting garbage collected before Datanode starts up
> accessing the dir causing FileNotFoundException.
> ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
>
> Key: HDFS-7282
> URL: https://issues.apache.org/jira/browse/HDFS-7282
> Project: Hadoop HDFS
> Issue Type: Bug
> Components: test
> Affects Versions: 2.4.1
> Reporter: Jinghui Wang
> Assignee: Jinghui Wang
> Attachments: HDFS-7282.patch
>
>
> TemporarySocketDirectory has finalize method deletes the directory, in
> TestShortCircuitCache and TestBlockReaderFactory, the
> TemporarySocketDirectory created are not refereced later in the tests, which
> can get garbage collected (deleted the dir) before Datanode start up
> accessing the directory under TemporarySocketDirectory causing
> FileNotFoundException.
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