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https://issues.apache.org/jira/browse/HBASE-24479?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17120648#comment-17120648
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Bharath Vissapragada commented on HBASE-24479:
----------------------------------------------
I think the test is racy.. (following snippet from branch-1)
{noformat}
public void testStopStartCompaction() throws IOException {
...........
thread.requestCompaction(r, store, "test", Store.PRIORITY_USER, new
CompactionRequest(), null);
-------------> Add a sleep here and the test fails reliably <------
assertEquals(1, thread.getLongCompactions().getActiveCount() +
thread.getShortCompactions()
.getActiveCount());
}
{noformat}
The problem is that the compaction asynchronously finishes before we even poll
for the {{activeCount}}
> Deflake TestCompaction#testStopStartCompaction
> ----------------------------------------------
>
> Key: HBASE-24479
> URL: https://issues.apache.org/jira/browse/HBASE-24479
> Project: HBase
> Issue Type: Bug
> Components: test
> Affects Versions: 3.0.0-alpha-1, 2.3.0, 1.7.0
> Reporter: Bharath Vissapragada
> Assignee: Bharath Vissapragada
> Priority: Major
>
> Saw this in our internal test runs.
> {noformat}
> org.apache.hadoop.hbase.regionserver.TestCompactionWithCoprocessor.testStopStartCompaction
> Failing for the past 1 build (Since Unstable#10 )
> Took 0.72 sec.
> add description
> Error Message
> expected:<1> but was:<0>
> Stacktrace
> java.lang.AssertionError: expected:<1> but was:<0>
> {noformat}
> The test asserts can be tightened to improve this. Will follow up with a
> patch shortly. HBASE-23899 added some debug logging to figure out why.
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