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https://issues.apache.org/jira/browse/HDFS-12514?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16188384#comment-16188384
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Rushabh S Shah commented on HDFS-12514:
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bq. This is related to what HDFS-10627 and HDFS-7686. Rushabh S Shah, Colin P.
McCabe, opinions on this?
[~elgoiri] The list of exceptions to be ignored seems good to me.
I have one minor comment on the patch.
{noformat}
+ // WSAECONNABORTED
+ "An established connection was aborted by the software in your " +
+ "host machine",
{noformat}
I haven't developed on Windows environment so this comment might not make sense.
>From the following windows documentation
>https://msdn.microsoft.com/en-us/library/windows/desktop/ms740668(v=vs.85).aspx
it says,
|WSAECONNABORTED| 10053 |Software caused connection abort.
An established connection was aborted by the software in your host computer,
possibly due to a data transmission time-out or protocol error.|
Will the exception message start with {{An established connection was aborted}}
or {{Software caused connection abort.}}
If it does starts with {{An established connection was aborted by the software
in your host machine}}, then check the last few words in documentation.
It is {{host computer}}. But in the patch it is {{host machine}} so the
{{String#startsWith(prefix)}} will fail.
> 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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