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https://issues.apache.org/jira/browse/HDFS-1330?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12895132#action_12895132
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Hairong Kuang commented on HDFS-1330:
-------------------------------------
There are two kinds of communications to a DataNode. Most of them directly uses
socket for things like replica reading or writing. A few of them use RPC.
HDFS-1325 is a problem with file read/write, while this jira is for a problem
with RPC communications. We see that a problematic DataNode causes a client
stuck in waiting for response forever. Having a timeout should help with this
problem.
> Make RPCs to DataNodes timeout
> ------------------------------
>
> Key: HDFS-1330
> URL: https://issues.apache.org/jira/browse/HDFS-1330
> Project: Hadoop HDFS
> Issue Type: New Feature
> Components: data-node
> Affects Versions: 0.22.0
> Reporter: Hairong Kuang
> Assignee: Hairong Kuang
> Fix For: 0.22.0
>
>
> This jira aims to make client/datanode or datanode/datanode RPC to have a
> timeout of DataNode#socketTimeout.
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