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From "Hudson (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (AMBARI-21893) NameNode Heap Usage (Daily) metric alert status flips to UNKNOWN intermittently when AMS HTTPS is enabled.
Date Wed, 13 Sep 2017 03:32:00 GMT

    [ https://issues.apache.org/jira/browse/AMBARI-21893?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16164101#comment-16164101
] 

Hudson commented on AMBARI-21893:
---------------------------------

FAILURE: Integrated in Jenkins build Ambari-trunk-Commit #8050 (See [https://builds.apache.org/job/Ambari-trunk-Commit/8050/])
AMBARI-21893 : NameNode Heap Usage (Daily) metric alert status flips to (avijayan: [http://git-wip-us.apache.org/repos/asf?p=ambari.git&a=commit&h=7fa7a6c17607341e8a6888f3dd8b938dce7425ff])
* (edit) ambari-server/src/main/java/org/apache/ambari/server/upgrade/UpgradeCatalog260.java
* (edit) ambari-server/src/main/resources/common-services/AMBARI_METRICS/0.1.0/configuration/ams-ssl-client.xml
* (edit) ambari-server/src/main/resources/common-services/AMBARI_METRICS/0.1.0/package/scripts/ams.py
* (edit) ambari-server/src/main/resources/common-services/AMBARI_METRICS/0.1.0/package/scripts/params.py
* (edit) ambari-server/src/test/java/org/apache/ambari/server/upgrade/UpgradeCatalog260Test.java
AMBARI-21893 : NameNode Heap Usage (Daily) metric alert status flips to (avijayan: [http://git-wip-us.apache.org/repos/asf?p=ambari.git&a=commit&h=4f6ef91f33cefeea97629dd4dc45ec993b27b4f6])
* (edit) ambari-server/src/main/resources/common-services/AMBARI_METRICS/0.1.0/package/scripts/ams.py


> NameNode Heap Usage (Daily) metric alert status flips to UNKNOWN intermittently when
AMS HTTPS is enabled.
> ----------------------------------------------------------------------------------------------------------
>
>                 Key: AMBARI-21893
>                 URL: https://issues.apache.org/jira/browse/AMBARI-21893
>             Project: Ambari
>          Issue Type: Bug
>          Components: ambari-metrics
>    Affects Versions: 2.6.0
>            Reporter: Aravindan Vijayan
>            Assignee: Aravindan Vijayan
>             Fix For: 2.6.0
>
>         Attachments: AMBARI-21893.patch
>
>
> Underlying Issue
> This issue is because of AMS HTTPS + HA scenario. The CA cert file (/etc/ambari-metrics-monitor/conf/ca.pem)
found on every host is generated by fetching a specific metric collector host's certificate
from the truststore.
> This certificate file is being used by alert script, service check and even monitors
to talk to collector.
> * For example, in a cluster with hosts H1 to H5, let's say there are 2 collectors - H1
& H2.
> * On a node H3, let's say the ca.pem file was constructed using the certificate for collector
H2.
> * Service check or metric monitor on H3 will NOT be able to talk to H1 since it does
not have the certificate for that host.



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