[HBASE-19288] Intermittent test failure in TestHStore.testRunDoubleMemStoreCompactors

• Type: Test
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 2.0.0-beta-1, 2.0.0
• Component/s: test
• Hadoop Flags: Reviewed
• Assignee: Ted Yu
• Reporter: Ted Yu
• Created: 16/Nov/17 22:31
• Updated: 21/Mar/18 22:20
• Resolved: 20/Nov/17 16:10

Description

Here was one of the test failures: https://builds.apache.org/job/PreCommit-HBASE-Build/9812/testReport/junit/org.apache.hadoop.hbase.regionserver/TestHStore/testRunDoubleMemStoreCompactors/

[ERROR] org.apache.hadoop.hbase.regionserver.TestHStore.testRunDoubleMemStoreCompactors(org.apache.hadoop.hbase.regionserver.TestHStore)
[ERROR]   Run 1: TestHStore.testRunDoubleMemStoreCompactors:1500 expected:<2> but was:<3>
[ERROR]   Run 2: TestHStore.testRunDoubleMemStoreCompactors:1481 expected:<1> but was:<4>
[ERROR]   Run 3: TestHStore.testRunDoubleMemStoreCompactors:1481 expected:<1> but was:<5>

From the counts for second and third runs, we know that RUNNER_COUNT was not cleared in between the reruns, leading to failure at the 1st assertion.