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From Peter Schuller <>
Subject Re: Lots of GC in log
Date Thu, 22 Sep 2011 19:23:12 GMT
> We are testing Cassandra with pretty big load, I saw frequent GCs in the
> log, Do you have suggestion about how to reduce them?

Do you have any actual problem that you are observing?

Frequent young-generation GC:s (ParNew) are expected. If you want to
cut down on the length of them you may want to change the JVM settings
in to use a smaller young-gen, but that will probably
cause overall GC cost to go up as more data is promoted into old gen.

/ Peter Schuller (@scode on twitter)

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