ZanderXu created HDFS-16703:
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Summary: 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
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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