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From "Hadoop QA (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (AMBARI-15123) Ambari's App Timeline Web UI Alert tries make http heavy call timelineserver:httpPort which can also cause OOM
Date Sat, 20 Feb 2016 23:13:18 GMT

    [ https://issues.apache.org/jira/browse/AMBARI-15123?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15155802#comment-15155802
] 

Hadoop QA commented on AMBARI-15123:
------------------------------------

{color:red}-1 overall{color}.  Here are the results of testing the latest attachment 
  http://issues.apache.org/jira/secure/attachment/12788804/AMBARI-15123.patch
  against trunk revision .

    {color:green}+1 @author{color}.  The patch does not contain any @author tags.

    {color:red}-1 tests included{color}.  The patch doesn't appear to include any new or modified
tests.
                        Please justify why no new tests are needed for this patch.
                        Also please list what manual steps were performed to verify this patch.

    {color:green}+1 javac{color}.  The applied patch does not increase the total number of
javac compiler warnings.

    {color:green}+1 release audit{color}.  The applied patch does not increase the total number
of release audit warnings.

    {color:green}+1 core tests{color}.  The patch passed unit tests in ambari-server.

Test results: https://builds.apache.org/job/Ambari-trunk-test-patch/5490//testReport/
Console output: https://builds.apache.org/job/Ambari-trunk-test-patch/5490//console

This message is automatically generated.

> Ambari's App Timeline Web UI Alert tries make http heavy call timelineserver:httpPort
which can also cause OOM
> --------------------------------------------------------------------------------------------------------------
>
>                 Key: AMBARI-15123
>                 URL: https://issues.apache.org/jira/browse/AMBARI-15123
>             Project: Ambari
>          Issue Type: Bug
>          Components: stacks
>    Affects Versions: 2.2.2
>            Reporter: Sumit Mohanty
>            Assignee: Sumit Mohanty
>             Fix For: 2.2.2
>
>         Attachments: AMBARI-15123.patch
>
>
> Ambari's App Timeline Web UI Alert tries make http heavy call timelineserver:httpPort
which can also cause OOM
> Hit this issue while testing ATS v1.5 on 32 node cluster under load was going OOM, we
discovered there are instance where <ATSHost:webPort> is being hit.
> Looks like Ambari's App Timeline Web UI alerting system is trying call it
> As from Ambari Alerts we can see error like "Connection failed to http://ATS_HOST:8188
(timed out)"
> Now If we try hit http://<ATSHost>:<webappPort>, by default It load http://<ATSHost>:<webappPort>/applicationhistory

> e.g.  Accessing http://ATS_HOST:8188 will try to access http:/ATS_HOST:8188/applicationhistory
page.
> If cluster has AHS/GHS enabled (under ATS), then this call result heavy html containing
large of application.
> We can make alert to access some lightweight call like: http://<ATSHost>:<webappPort>/applicationhistory/about,
or http://<ATSHost>:<webappPort>/ws/v1/timeline
> e.g.  http://ATS_HOST:8188/applicationhistory/about
> or 
> http://ATS_HOST:8188/ws/v1/timeline



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