[jira] [Commented] (AMBARI-20726) Aggregate alert does not show status properly at Maintenance Mode change

["Hudson (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/AMBARI-20726?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16244021#comment-16244021 ] 

Hudson commented on AMBARI-20726:
---------------------------------

FAILURE: Integrated in Jenkins build Ambari-branch-2.6 #434 (See [https://builds.apache.org/job/Ambari-branch-2.6/434/])
AMBARI-20726 - Aggregate alert does not show status properly at (jhurley: [http://git-wip-us.apache.org/repos/asf?p=ambari.git&a=commit&h=88f0dc30f92121b46982973c000b1e6e69f3d5a1])
* (edit) ambari-server/src/main/java/org/apache/ambari/server/events/listeners/alerts/AlertMaintenanceModeListener.java
* (edit) ambari-server/src/main/java/org/apache/ambari/server/state/AlertState.java
* (edit) ambari-server/src/test/java/org/apache/ambari/server/events/listeners/upgrade/AlertMaintenanceModeListenerTest.java


> 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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