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https://issues.apache.org/jira/browse/AMBARI-20726?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15988095#comment-15988095
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Qin Liu commented on AMBARI-20726:
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need to mention that the results of testing has nothing to do with my patch
because the following job also failed in the same way:
https://builds.apache.org/job/Ambari-trunk-test-patch/11523/artifact/patch-work/trunkJavacWarnings.txt
> Aggregate alert does not show status properly at Maintenance Mode change
> ------------------------------------------------------------------------
>
> Key: AMBARI-20726
> URL: https://issues.apache.org/jira/browse/AMBARI-20726
> Project: Ambari
> Issue Type: Bug
> Components: alerts
> Affects Versions: 2.4.2
> Reporter: Qin Liu
> Assignee: Qin Liu
> Priority: Minor
> Fix For: trunk
>
> Attachments: AMBARI-20726.patch
>
>
> Aggregate alert does not show status properly at Maintenance Mode change.
> Steps to reproduce:
> Install a cluster that has HBase with one regionserver installed.
> Scenario 1:
> 1. Turn On Maintenance Mode on the RegionServer or on the RegionServer host
> or on the HBase service.
> 2. Stop the RegionServer after that.
> 3. No red alerts will show as expected.
> Percent RegionServers Available - OK affected: [0], total: [1]
> 4. Now Turn Off Maintenance Mode, still keep the RegionServer down.
> But Percent RegionServers Available alert will still show "OK" - "CRIT" is
> expected.
> Scenario 2:
> 1) Stop the RegionServer - Red alert will show as expected.
> Percent RegionServers Available - CRIT affected: [1], total: [1]
> 2) Now Turn On Maintenance Mode - For RegionServer status, Red alert will be
> gone as expected.
> But Percent RegionServers Available alert will still show "CRIT" - "OK" is
> expected.
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