teamconfx opened a new pull request, #6092:
URL: https://github.com/apache/hadoop/pull/6092

   ### Description of PR
   
   Graceful fence timeout of FailoverController in ZKFailovercontroller equals 
to `ha.failover-controller.graceful-fence.rpc-timeout.ms` * 2. Since users are 
unaware of this calculation, it thus has risks of overflowing to a negative 
number if users set `ha.failover-controller.graceful-fence.rpc-timeout.ms` to a 
large value.
   
   To reproduce:
   1. set `ha.failover-controller.graceful-fence.rpc-timeout.ms` to 1092752431
   2. run `mvn surefire:test 
-Dtest=org.apache.hadoop.ha.TestZKFailoverController#testGracefulFailoverFailBecomingStandby`
   
   This PR provides a fix by checking the timeout after multiplication is at 
least 0.
   
   ### How was this patch tested?
   
   Unit test
   
   ### For code changes:
   
   - [x] Does the title or this PR starts with the corresponding JIRA issue id 
(e.g. 'HADOOP-17799. Your PR title ...')?
   - [ ] Object storage: have the integration tests been executed and the 
endpoint declared according to the connector-specific documentation?
   - [ ] If adding new dependencies to the code, are these dependencies 
licensed in a way that is compatible for inclusion under ASF 2.0?
   - [ ] If applicable, have you updated the LICENSE, LICENSE-binary, 
NOTICE-binary files?
   
   


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