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From Robin Verlangen <>
Subject Re: Cassandra OOM crash while mapping commitlog
Date Mon, 13 Aug 2012 06:23:42 GMT
@Tyler: We were already running most of our machines in 64bit JVM (Sun, not
the OpenJDK). Those also crashed.

@Holger: Good to hear that. I'll schedule an update for our Cassandra

Thank you both for your time.

2012/8/13 Holger Hoffstaette <>

> On Sun, 12 Aug 2012 13:36:42 +0200, Robin Verlangen wrote:
> > Hmm, is issue caused by some 1.x version? Before it never occurred to us.
> This bug was introduced in 1.1.0 and has been fixed in 1.1.3, where the
> closed/recycled segments are now closed & unmapped properly. The default
> sizes are also smaller.
> Of course the question remains why an append-only commitlog needs to be
> mmap'ed in the first place, especially for writing..
> -h

With kind regards,

Robin Verlangen
*Software engineer*

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