Lukas Majercak commented on HDFS-12514:

Fixed the trunk patch and added one for branch-2.

> 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-branch-2.000.patch, HDFS-12514.001.patch, 
> HDFS-12514.002.patch, HDFS-12514.003.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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