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https://issues.apache.org/jira/browse/HDFS-12514?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16186305#comment-16186305
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Íñigo Goiri commented on HDFS-12514:
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This is related to what HDFS-10627 and HDFS-7686. [~shahrs87], [~cmccabe],
opinions on this?
> Cancelled HedgedReads cause block to be marked as suspect on Windows
> --------------------------------------------------------------------
>
> Key: HDFS-12514
> URL: https://issues.apache.org/jira/browse/HDFS-12514
> Project: Hadoop HDFS
> Issue Type: Bug
> Components: datanode, hdfs-client
> Reporter: Lukas Majercak
> Assignee: Lukas Majercak
> Attachments: HDFS-12514.001.patch
>
>
> DFSClient with hedged reads enabled will often close previous spawned
> connections if it successfully reads from one of them. This can result in
> DataNode's BlockSender getting a socket exception and wrongly marking the
> block as suspect and to be rescanned for errors.
> This patch is aimed at adding windows specific network related exception
> messages to be ignored in BlockSender.sendPacket.
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