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https://issues.apache.org/jira/browse/HDFS-16703?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=18036436#comment-18036436
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ASF GitHub Bot commented on HDFS-16703:
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github-actions[bot] closed pull request #4660: HDFS-16703. Enable RPC Timeout
for some protocols of NameNode.
URL: https://github.com/apache/hadoop/pull/4660
> Enable RPC Timeout for some protocols of NameNode.
> --------------------------------------------------
>
> Key: HDFS-16703
> URL: https://issues.apache.org/jira/browse/HDFS-16703
> Project: Hadoop HDFS
> Issue Type: Improvement
> Reporter: ZanderXu
> Assignee: ZanderXu
> Priority: Major
> Labels: pull-request-available
> Time Spent: 1h 40m
> Remaining Estimate: 0h
>
> When I read some code about protocol, I found that only
> ClientNamenodeProtocolPB proxy with RPC timeout, other protocolPB proxy
> without RPC timeout, such as RefreshAuthorizationPolicyProtocolPB,
> RefreshUserMappingsProtocolPB, RefreshCallQueueProtocolPB,
> GetUserMappingsProtocolPB and NamenodeProtocolPB.
>
> If proxy without rpc timeout, it will be blocked for a long time if the NN
> machine crash or bad network during writing or reading with NN.
>
> So I feel that we should enable RPC timeout for all ProtocolPB.
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