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From Anubhav Kale <Anubhav.K...@microsoft.com>
Subject RE: Leak Detected while bootstrap
Date Wed, 13 Apr 2016 23:06:34 GMT
Thanks, Updated with logs.

From: Tyler Hobbs [mailto:tyler@datastax.com]
Sent: Wednesday, April 13, 2016 3:36 PM
To: user@cassandra.apache.org
Subject: Re: Leak Detected while bootstrap

This looks like it might be https://issues.apache.org/jira/browse/CASSANDRA-11374<https://na01.safelinks.protection.outlook.com/?url=https%3a%2f%2fissues.apache.org%2fjira%2fbrowse%2fCASSANDRA-11374&data=01%7c01%7cAnubhav.Kale%40microsoft.com%7caa645ead9c0f4f3b99d008d363ec045b%7c72f988bf86f141af91ab2d7cd011db47%7c1&sdata=XaRYCSG8f3h399%2fkdyipds9iuBXWkcErPaXiD9cEfCo%3d>.
 Can you comment on that ticket and share your logs leading up to the error?

On Wed, Apr 13, 2016 at 3:37 PM, Anubhav Kale <Anubhav.Kale@microsoft.com<mailto:Anubhav.Kale@microsoft.com>>
wrote:
Hello,

Since we upgraded to Cassandra 2.1.12, we are noticing that below happens when we are trying
to bootstrap nodes, and the process just gets stuck. Restarting the process / VM does not
help. Our nodes are around ~300 GB and run on local SSDs and we haven’t seen this problem
on older versions (specifically 2.1.9).

Is this a known issue / any workarounds ?

ERROR [Reference-Reaper:1] 2016-04-13 20:33:53,394  Ref.java:179 - LEAK DETECTED: a reference
(org.apache.cassandra.utils.concurrent.Ref$State@15e611a3<mailto:org.apache.cassandra.utils.concurrent.Ref$State@15e611a3>)
to class org.apache.cassandra.utils.concurrent.WrappedSharedCloseable$1@203187780:[[OffHeapBitSet<mailto:org.apache.cassandra.utils.concurrent.WrappedSharedCloseable$1@203187780:[[OffHeapBitSet>]]
was not released before the reference was garbage collected

Thanks !



--
Tyler Hobbs
DataStax<https://na01.safelinks.protection.outlook.com/?url=http%3a%2f%2fdatastax.com%2f&data=01%7c01%7cAnubhav.Kale%40microsoft.com%7caa645ead9c0f4f3b99d008d363ec045b%7c72f988bf86f141af91ab2d7cd011db47%7c1&sdata=pFIcwR7HKB53YBMczg3USP%2b%2bw5FwJxgKZrFmARctjRo%3d>
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