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From "Hadoop QA (JIRA)" <>
Subject [jira] [Commented] (AMBARI-19573) Increase max limit for -Xmn parameter
Date Wed, 18 Jan 2017 05:48:26 GMT


Hadoop QA commented on AMBARI-19573:

{color:red}-1 overall{color}.  Here are the results of testing the latest attachment
  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
                        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:red}-1 core tests{color}.  The test build failed in ambari-server 

Test results:
Console output:

This message is automatically generated.

> Increase max limit for -Xmn parameter
> -------------------------------------
>                 Key: AMBARI-19573
>                 URL:
>             Project: Ambari
>          Issue Type: Improvement
>          Components: stacks
>    Affects Versions: 2.5.0
>            Reporter: Ted Yu
>            Assignee: Ted Yu
>             Fix For: 2.5.0
>         Attachments: AMBARI-19573.v3.patch, AMBARI-19573.v4.patch
> Currently, max value for -Xmn parameter is bounded by (hbase-rs-2.2.json):
> {code}
>             "hbase_regionserver_xmn_max": "512",
> {code}
> During multiple troubleshooting sessions with customers, we (thanks to [~vrodionov])
found that this limit is too low for large heap size.
> This JIRA is to increase the limit to 4000 MB.

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