Yang Chen created HBASE-26333:
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Summary: Clean shared state pollution to avoid flaky tests
Key: HBASE-26333
URL: https://issues.apache.org/jira/browse/HBASE-26333
Project: HBase
Issue Type: Bug
Components: test
Reporter: Yang Chen
h2. What is the purpose of this change
* Fixing a flaky test to avoid shared state pollution
{{org.apache.hadoop.hbase.replication.regionserver.TestDrainReplicationQueuesForStandBy.test}}
h2. Reproduce the test failure
* Run the test twice in the same JVM.
h2. Expected result:
* The test should run successfully when multiple tests that use this state are
run in the same JVM.
h2. Actual result:
* We get the failure:
{{org.apache.hadoop.hbase.DoNotRetryIOException: Can not transit current
cluster state from STANDBY to STANDBY for peer id=1}}
h2. Why the test fails
* When the test ends, current cluster for peer id=1 is STANDBY, it can not be
transitted from STANDBY to STANDBY.
h2. Fix
* Reset the state when test ends.
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