Nick Dimiduk created HBASE-25157:
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Summary: TestMasterRegionCompaction is flaky
Key: HBASE-25157
URL: https://issues.apache.org/jira/browse/HBASE-25157
Project: HBase
Issue Type: Test
Components: master, test
Affects Versions: 3.0.0-alpha-1
Reporter: Nick Dimiduk
{noformat}
[ERROR] Tests run: 1, Failures: 1, Errors: 0, Skipped: 0, Time elapsed: 10.298
s <<< FAILURE! - in
org.apache.hadoop.hbase.master.region.TestMasterRegionCompaction
[ERROR] org.apache.hadoop.hbase.master.region.TestMasterRegionCompaction.test
Time elapsed: 10.269 s <<< FAILURE!
java.lang.AssertionError: expected:<1> but was:<4>
at
org.apache.hadoop.hbase.master.region.TestMasterRegionCompaction.test(TestMasterRegionCompaction.java:136)
{noformat}
This test uses calls to {{Thread.sleep}} of fixed durations instead of the
{{waitFor}} pattern of retries. It's looking for side-effects of a background
thread that may not be scheduled on precisely the cadence that the test
expects, especially in an overloaded test environment.
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