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

["Erick Erickson (JIRA)" <ji...@apache.org>]

Erick Erickson created SOLR-9803:
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             Summary: 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


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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