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From Jabbar Azam <>
Subject Re: Compaction causing OutOfHeap
Date Mon, 27 May 2013 13:00:28 GMT

I've notice in an earlier 1.2.x that if I had a compaction throughput
throttle some of the nodes would give an out of memory error only if I was
inserting data for more than 10 hours continuosly.  The work around was to
switch off compaction throttling.

This was in a test environment doing lots of inserts so switching off
compaction throttling was ok.


Jabbar Azam
On 27 May 2013 04:29, "John Watson" <> wrote:

> Having (2) 1.2.5 nodes constantly crashing due to OutOfHeap errors.
> It always happens when the same large compaction is about to finish (they
> re-run the same compaction after restarting.)
> An indicator is CMS GC time of 3-5s (and the many related problems felt
> throughout the rest of the cluster)

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