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https://issues.apache.org/jira/browse/HIVE-13749?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15303049#comment-15303049
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Thejas M Nair commented on HIVE-13749:
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HIVE-3098 fixes it for metastore .
This fix can be dangerous for the embedded metastore use case.
bq. I think because of my test being run as a single user.
Single user shouldn't matter as the cache is based on the UGI object as I
mentioned earlier. Testing using hive-cli might be better that would ensure
creation on new metastore connection each time as well.
I assume you haven't seen this in other user environments. I suspect there is
something unique about their environment that would be triggering this. You
might want to check if their are using any specific plugins.
Is this with kerberos enabled ?
> Memory leak in Hive Metastore
> -----------------------------
>
> Key: HIVE-13749
> URL: https://issues.apache.org/jira/browse/HIVE-13749
> Project: Hive
> Issue Type: Bug
> Components: Metastore
> Affects Versions: 1.1.0
> Reporter: Naveen Gangam
> Assignee: Naveen Gangam
> Attachments: HIVE-13749.patch, Top_Consumers7.html
>
>
> Looking a heap dump of 10GB, a large number of Configuration objects(> 66k
> instances) are being retained. These objects along with its retained set is
> occupying about 95% of the heap space. This leads to HMS crashes every few
> days.
> I will attach an exported snapshot from the eclipse MAT.
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