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https://issues.apache.org/jira/browse/HDFS-7199?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14163825#comment-14163825
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Colin Patrick McCabe commented on HDFS-7199:
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I think it makes sense to wrap the non-IOException in an IOE here. But I also
wonder why you are getting a non-IOException in the first place. That seems
like a bug.
> DFSOutputStream can silently drop data if DataStreamer crashes with a non-I/O
> exception
> ---------------------------------------------------------------------------------------
>
> Key: HDFS-7199
> URL: https://issues.apache.org/jira/browse/HDFS-7199
> Project: Hadoop HDFS
> Issue Type: Bug
> Components: hdfs-client
> Affects Versions: 2.5.0
> Reporter: Jason Lowe
> Assignee: Chen He
> Priority: Critical
>
> If the DataStreamer thread encounters a non-I/O exception then it closes the
> output stream but does not set lastException. When the client later calls
> close on the output stream then it will see the stream is already closed with
> lastException == null, mistakently think this is a redundant close call, and
> fail to report any error to the client.
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