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https://issues.apache.org/jira/browse/HDFS-2054?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13046725#comment-13046725
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Patrick Kling commented on HDFS-2054:
-------------------------------------
If I remember correctly, the bug fixed by HDFS-1527 was causing the affected
transfers to fail silently. That's why I added this message. If it is polluting
the log file, I have no objection to downgrading this to a warning.
> BlockSender.sendChunk() prints ERROR for connection closures encountered
> during transferToFully()
> --------------------------------------------------------------------------------------------------
>
> Key: HDFS-2054
> URL: https://issues.apache.org/jira/browse/HDFS-2054
> Project: Hadoop HDFS
> Issue Type: Bug
> Components: data-node
> Affects Versions: 0.22.0, 0.23.0
> Reporter: Kihwal Lee
> Assignee: Patrick Kling
>
> The addition of ERROR was part of HDFS-1527. In environments where clients
> tear down FSInputStream/connection before reaching the end of stream, this
> error message often pops up. Since these are not really errors and especially
> not the fault of data node, the message should be toned down at least.
> Assigning to the author of HDFS-1527.
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