[jira] [Commented] (AMBARI-22684) Ambari Infra Solr should use DocValues by default

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

    [ https://issues.apache.org/jira/browse/AMBARI-22684?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16300294#comment-16300294 ] 

Kevin Risden commented on AMBARI-22684:
---------------------------------------

RANGER-1938 is the same issue to fix in the Ranger project. This ticket is to fix this for all Ambari Infra Solr deployments.

> Ambari Infra Solr should use DocValues by default
> -------------------------------------------------
>
>                 Key: AMBARI-22684
>                 URL: https://issues.apache.org/jira/browse/AMBARI-22684
>             Project: Ambari
>          Issue Type: Improvement
>          Components: ambari-infra
>    Affects Versions: 2.4.0, 2.5.0, 2.6.0
>            Reporter: Kevin Risden
>
> Ranger uses Ambari Infra Solr (or another Apache Solr install) for storing Ranger Audit events for displaying in Ranger Admin. In our case, we have noticed quite a few Ambari Infra Solr OOM due to Ranger. I've talked with a few other people who are having very similar problems with OOM errors.
> I've typed up some details about how the way Ranger is using Solr requires a lot of heap. I've also outlined the fix for this which significantly reduced the amount of heap memory required. I'm an Apache Lucene/Solr committer so this optimization/usage might not be immediately obvious to those using Solr especially version 5.x.
> https://risdenk.github.io/2017/12/18/ambari-infra-solr-ranger.html



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