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https://issues.apache.org/jira/browse/HADOOP-2346?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12569061#action_12569061
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Raghu Angadi commented on HADOOP-2346:
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My recommendation for committing this patch :
- This is a change for low level streams and thus not appropriate for mostly
stable 0.16.
- This can go in to 0.17 sooner than later. Once it gets tested there, we can
always back port it to 0.16 if we really need it.
- The current patch is pretty OK. I will have an improved implementation of
{{SocketIOWithTimout}} when I get some more time in next couple of weeks.
> DataNode should have timeout on socket writes.
> ----------------------------------------------
>
> Key: HADOOP-2346
> URL: https://issues.apache.org/jira/browse/HADOOP-2346
> Project: Hadoop Core
> Issue Type: Bug
> Components: dfs
> Affects Versions: 0.15.1
> Reporter: Raghu Angadi
> Assignee: Raghu Angadi
> Fix For: 0.16.1
>
> Attachments: HADOOP-2346.patch, HADOOP-2346.patch, HADOOP-2346.patch,
> HADOOP-2346.patch, HADOOP-2346.patch
>
>
> If a client opens a file and stops reading in the middle, DataNode thread
> writing the data could be stuck forever. For DataNode sockets we set read
> timeout but not write timeout. I think we should add a write(data, timeout)
> method in IOUtils that assumes it the underlying FileChannel is non-blocking.
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