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https://issues.apache.org/jira/browse/HBASE-23770?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Michael Stack resolved HBASE-23770.
-----------------------------------
Assignee: Michael Stack
Resolution: Fixed
Pushing on master too. It seems to have cured this flakey. See picture below.
The patch went in just after the last red.
!Screen Shot 2020-01-31 at 8.37.13 AM.png!
> [Flakey Tests] TestRegionReplicasWithRestartScenarios#testWhenRestart
> ---------------------------------------------------------------------
>
> Key: HBASE-23770
> URL: https://issues.apache.org/jira/browse/HBASE-23770
> Project: HBase
> Issue Type: Bug
> Components: flakies
> Reporter: Michael Stack
> Assignee: Michael Stack
> Priority: Major
> Fix For: 3.0.0, 2.3.0
>
> Attachments:
> 0001-HBASE-23770-Flakey-Tests-TestRegionReplicasWithResta.patch, Screen Shot
> 2020-01-29 at 9.45.58 PM.png, Screen Shot 2020-01-31 at 8.37.13 AM.png
>
>
> Fails about 35% of the time in the GCE build. Let me attach a picture from
> current flakies dashboard for branch-2.
> The test starts a cluster of three RS w/ 3 region replicas. It then stops a
> server, starts a new one, and then expects that the remaining three nodes do
> not have instances where two region replicas have landed on a single server.
> It fails sporadically (reproducible locally) because when the SCP runs its
> assign, sometimes timing has it so Master knows of two servers only. Making
> the new start before the old one is stopped (instead of other way around)
> seems to fix the test -- there'll be three servers up when SCP runs.
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