This is not the case; I built and deployed the latest code from the 2.1.x branch in Github and the issue still exists.
- Mike From: Jeff Jirsa <jeff.ji...@crowdstrike.com<mailto:jeff.ji...@crowdstrike.com>> Reply-To: Cassandra List <user@cassandra.apache.org<mailto:user@cassandra.apache.org>> Date: Wednesday, July 29, 2015 at 12:07 PM To: Cassandra List <user@cassandra.apache.org<mailto:user@cassandra.apache.org>> Subject: Re: Leak detected during repair (v2.1.8) https://issues.apache.org/jira/browse/CASSANDRA-9382 From: "Frisch, Michael" Reply-To: "user@cassandra.apache.org<mailto:user@cassandra.apache.org>" Date: Wednesday, July 29, 2015 at 6:56 AM To: Cassandra List Subject: Leak detected during repair (v2.1.8) ERROR [Reference-Reaper:1] 2015-07-29 12:34:45,941 Ref.java:179 - LEAK DETECTED: a reference (org.apache.cassandra.utils.concurrent.Ref$State@52628658) to class org.apache.cassandra.io.sstable.SSTableReader$InstanceTidier@1113728425:/data/cassandra/data/KSName/CFName/snapshots/8179b820-35ec-11e5-a75f-ed9e19db78e9/KSName-CFName-ka-5544 was not released before the reference was garbage collected ERROR [Reference-Reaper:1] 2015-07-29 12:34:45,948 Ref.java:179 - LEAK DETECTED: a reference (org.apache.cassandra.utils.concurrent.Ref$State@4eef1d76) to class org.apache.cassandra.io.sstable.SSTableReader$InstanceTidier@880236150:/data/cassandra/data/KSName/CFName/snapshots/8179b820-35ec-11e5-a75f-ed9e19db78e9/KSName-CFName-ka-5543 was not released before the reference was garbage collected I was just wondering if this is a known issue or if others are experiencing this with C* v2.1.8. I couldn't find any open tickets in the Jira about these leaks occurring during repairs. I've only seen this during repairs and the only commonality that I could find between the column families that these leaks have been repeated for is that they contain very little data. Could there be a race condition that's only hit when repairing very small datasets? Turning on debug logging didn't produce any more context like I had hoped for. Regards, - Mike