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https://issues.apache.org/jira/browse/HDFS-16703?focusedWorklogId=796619&page=com.atlassian.jira.plugin.system.issuetabpanels:worklog-tabpanel#worklog-796619
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ASF GitHub Bot logged work on HDFS-16703:
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Author: ASF GitHub Bot
Created on: 30/Jul/22 13:43
Start Date: 30/Jul/22 13:43
Worklog Time Spent: 10m
Work Description: slfan1989 commented on PR #4660:
URL: https://github.com/apache/hadoop/pull/4660#issuecomment-1200160215
> Sorry, I didn't get your idea. Can you share more detailed information or
cases?
I mean you have increased the timeout configuration, will some protocols
timeout frequently?
Frequent timeouts cause some operations to fail. I personally think that the
performance of NN RPC is limited by NN FsSystemLock, which causes Rpc to not
necessarily return at a regular time. Setting this may lead to a large number
of RPC failures in some cases, resulting in overall instability.
Issue Time Tracking
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Worklog Id: (was: 796619)
Time Spent: 50m (was: 40m)
> 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: 50m
> 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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