Github user beyond1920 commented on the issue:
https://github.com/apache/flink/pull/2427
@mxm , thanks for your review. I had change the code based on your advice,
the changes are following:
1. move all code in the methods handleGrantLeadership, revokeLeadership,
onLeaderElectionError to ResourceManagerLeaderContender class from
ResourceManager
2. change getAddress method in ResourceManagerLeaderContender.
3. change callAsync method in TestingSerialRpcService, now it will be
executed immediately rather than wait for some time.
4. change TestingSerialRpcService to extend RpcService directly rather than
TestingRpcService.
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