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https://issues.apache.org/jira/browse/HDFS-12514?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16396336#comment-16396336
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Lukas Majercak commented on HDFS-12514:
---------------------------------------
[~shahrs87], "Software caused connection abort" will not be in the exception
message, the same way as "Connection reset by peer" is not in the message for
*WSAECONNRESET.*
> 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
> Priority: Major
> 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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