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From Peter Schuller <>
Subject Re: Two questions : Server crash during compaction and UnavailableException
Date Mon, 02 Aug 2010 07:00:28 GMT
> First, Cassandra suddenly dies during compaction. Java core dump says that
> the last thread run was  "COMPACTION-POOL:1".
> I suspect that my business logic could lead size of columns in a column
> family per a row to be greater than two gigabytes. (but i couldn't confirm
> it yet)

Are you running out of memory (java heap)? If you're running cassandra
with default options, it will be running with

Have you checked the cassandra system.log for garbage collection
messages? What is in the last minute or two of logs?

/ Peter Schuller

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