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https://issues.apache.org/jira/browse/HBASE-26602?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Andrew Kyle Purtell resolved HBASE-26602.
-----------------------------------------
Fix Version/s: (was: 2.5.0)
(was: 2.6.0)
(was: 3.0.0-alpha-3)
(was: 2.4.12)
Resolution: Cannot Reproduce
Does not reproduce with 2.4.12-SNAPSHOT
> [aarch64] TestAsyncNonMetaRegionLocator is flaky
> ------------------------------------------------
>
> Key: HBASE-26602
> URL: https://issues.apache.org/jira/browse/HBASE-26602
> Project: HBase
> Issue Type: Bug
> Components: asyncclient, test
> Affects Versions: 2.4.9
> Reporter: Andrew Kyle Purtell
> Priority: Minor
>
> There was an earlier issue where the problem was diagnosed as a race (see
> HBASE-20822). The test is flaky again now on MacOS aarch64, which is likely a
> timing/race issue again. The underlying hardware memory model is different so
> the JVM will be using memory barriers in more places on aarch64 than x86_64
> etc. and multithreaded timings and interactions can be expected to be
> slightly different.
> org.apache.hadoop.hbase.client.TestAsyncNonMetaRegionLocator.testMultiRegionTable[1]
> [ERROR] Run 1:
> TestAsyncNonMetaRegionLocator.testMultiRegionTable:251->lambda$testMultiRegionTable$5:251->lambda$null$4:253->assertLocEquals:196
> array lengths differed, expected.length=3 actual.length=0; arrays first
> differed at element [0]; expected:<49> but was:<end of array>
> [INFO] Run 2: PASS
> org.apache.hadoop.hbase.client.TestAsyncNonMetaRegionLocator.testRegionMove[1]
> [ERROR] Run 1:
> TestAsyncNonMetaRegionLocator.testRegionMove:292->assertLocEquals:197
> expected:<192.168.1.25,64070,1639793242964> but
> was:<192.168.1.25,64053,1639793242927>
> [INFO] Run 2: PASS
> org.apache.hadoop.hbase.client.TestAsyncNonMetaRegionLocator.testRegionReplicas[1]
> [ERROR] Run 1: TestAsyncNonMetaRegionLocator.testRegionReplicas:433
> expected:<3> but was:<1>
> [INFO] Run 2: PASS
> org.apache.hadoop.hbase.client.TestAsyncNonMetaRegionLocator.testReload[1]
> [ERROR] Run 1:
> TestAsyncNonMetaRegionLocator.testReload:365->assertLocEquals:197
> expected:<192.168.1.25,64083,1639793243015> but
> was:<192.168.1.25,64053,1639793242927>
> [INFO] Run 2: PASS
> org.apache.hadoop.hbase.client.TestAsyncNonMetaRegionLocator.testSingleRegionTable[1]
> [ERROR] Run 1:
> TestAsyncNonMetaRegionLocator.testSingleRegionTable:205->assertLocEquals:197
> expected:<192.168.1.25,64070,1639793242964> but
> was:<192.168.1.25,64053,1639793242927>
> [INFO] Run 2: PASS
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