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https://issues.apache.org/jira/browse/HDFS-12514?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Lukas Majercak updated HDFS-12514:
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Description:
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.
> 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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