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Posted to dev@lucene.apache.org by "Erick Erickson (JIRA)" <ji...@apache.org> on 2016/11/27 05:55:58 UTC

[jira] [Updated] (SOLR-9803) Memory leak when creating/deleting collections in VersionBucket

     [ https://issues.apache.org/jira/browse/SOLR-9803?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Erick Erickson updated SOLR-9803:
---------------------------------
    Attachment: Main.java

Here's the SolrJ program I was running when I saw this.

> Memory leak when creating/deleting collections in VersionBucket
> ---------------------------------------------------------------
>
>                 Key: SOLR-9803
>                 URL: https://issues.apache.org/jira/browse/SOLR-9803
>             Project: Solr
>          Issue Type: Bug
>      Security Level: Public(Default Security Level. Issues are Public) 
>    Affects Versions: trunk, 6.4
>            Reporter: Erick Erickson
>         Attachments: Main.java
>
>
> I was doing some stress testing for creating/deleting collections to see if SOLR-7936 was still a problem when I noticed memory creep. I'll attach the program I was using, but basically it creates/deletes a collection over and over.
> A little while after it starts, org.apache.solr.update.VersionBucket instances are
> bytes           instances
> 18M            786K
> Then after 320- iterations the numbers are:
> bytes          instances
> 506M               21M
> jconsole shows an increasing heap usage as well.
> Whether the Solr node is an overseer or not is irrelevant.
> [~tpot] you might have some insight here?
> I also have no idea whether this more widespread than creating/deleting collections, it just happens that that was the test I was running when I saw this.
> I saw this on trunk, I assume 6x shows it too.



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