RATIS-758. Illegal state transition in LeaderElection: RUNNING to CLOSED #48
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What changes were proposed in this pull request?
Make sure
LeaderElection
is transitioned toCLOSED
viaCLOSING
. Even ifaskForVotes
has no chance for any iteration due to already being changed to follower.The first commit contains repro code, and can be dropped or reworked, eg. if mocking or exposing some methods only for testing is not desirable.
The second commit is the fix itself.
https://issues.apache.org/jira/browse/RATIS-758
How was this patch tested?
Added unit test case to reproduce the problem and verify the fix. Currently running all tests to check for regressions.