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https://issues.apache.org/jira/browse/HADOOP-8495?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Jason Lowe updated HADOOP-8495:
-------------------------------
Attachment: HADOOP-8495.patch
Patch to update the Netty dependency to 3.2.4.Final which has the fix for
[NETTY-374|https://issues.jboss.org/browse/NETTY-374]. Manually tested with
the issue described in MAPREDUCE-4298 to verify file descriptors are no longer
leaked when I/O errors occur on the channel.
> Update Netty to avoid leaking file descriptors during shuffle
> -------------------------------------------------------------
>
> Key: HADOOP-8495
> URL: https://issues.apache.org/jira/browse/HADOOP-8495
> Project: Hadoop Common
> Issue Type: Bug
> Components: io
> Affects Versions: 0.23.3
> Reporter: Jason Lowe
> Assignee: Jason Lowe
> Priority: Critical
> Attachments: HADOOP-8495.patch
>
>
> Netty 3.2.3.Final has a known bug where writes to a closed channel do not
> have their futures invoked. See
> [Netty-374|https://issues.jboss.org/browse/NETTY-374]. This can lead to file
> descriptor leaks during shuffle as noted in MAPREDUCE-4298.
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