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From "Hadoop QA (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (AMBARI-22236) Expression parser support for JMXServerSide alerts
Date Tue, 17 Oct 2017 18:11:00 GMT

    [ https://issues.apache.org/jira/browse/AMBARI-22236?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16208059#comment-16208059
] 

Hadoop QA commented on AMBARI-22236:
------------------------------------

{color:red}-1 overall{color}.  Here are the results of testing the latest attachment 
  http://issues.apache.org/jira/secure/attachment/12892630/AMBARI-22236.patch
  against trunk revision .

    {color:red}-1 patch{color}.  The patch command could not apply the patch.

Console output: https://builds.apache.org/job/Ambari-trunk-test-patch/12533//console

This message is automatically generated.

> Expression parser support for JMXServerSide alerts
> --------------------------------------------------
>
>                 Key: AMBARI-22236
>                 URL: https://issues.apache.org/jira/browse/AMBARI-22236
>             Project: Ambari
>          Issue Type: Task
>          Components: ambari-server
>    Affects Versions: 3.0.0
>            Reporter: Attila Magyar
>            Assignee: Attila Magyar
>             Fix For: 3.0.0
>
>         Attachments: AMBARI-22236.patch
>
>
> Many existing JMX alerts use expressions like
> {code}
>         "jmx": {
>             "property_list": [
>               "Hadoop:service=NameNode,name=FSNamesystemState/CapacityUsed",
>               "Hadoop:service=NameNode,name=FSNamesystemState/CapacityRemaining"
>             ],
>             "value": "{0}/({0} + {1}) * 100.0"
>           }
> {code}
> JMXServerSide alert should be able to evaluate these expressions in a secure and safe
way.
> Supported operators: +,-,*,/,(,)



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