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From Jonathan Ellis <jbel...@gmail.com>
Subject Re: Re: What is consuming the heap?
Date Wed, 21 Jul 2010 13:16:18 GMT
On Tue, Jul 20, 2010 at 11:33 PM, Peter Schuller
<peter.schuller@infidyne.com> wrote:
>>  INFO [GC inspection] 2010-07-21 01:01:49,661 GCInspector.java (line 110) GC for ConcurrentMarkSweep: 11748 ms, 413673472 reclaimed leaving 9779542600 used; max is 10873667584
>> ERROR [Thread-35] 2010-07-21 01:02:10,941 CassandraDaemon.java (line 78) Fatal exception in thread Thread[Thread-35,5,main]
>> java.lang.OutOfMemoryError: Java heap space
>>  INFO [GC inspection] 2010-07-21 01:02:10,958 GCInspector.java (line 110) GC for ConcurrentMarkSweep: 10043 ms, 259576 reclaimed leaving 10172790816 used; max is 10873667584
>
> So that confirms a "legitimate" out-of-memory condition in the sense
> that CMS is reclaiming extremely little and the live set after a
> concurrent mark/sweep is indeed around the 10 gig.

Are you doing a lot of inserts?  You might be hitting
https://issues.apache.org/jira/browse/CASSANDRA-1042

-- 
Jonathan Ellis
Project Chair, Apache Cassandra
co-founder of Riptano, the source for professional Cassandra support
http://riptano.com

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