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From Jonathan Ellis <>
Subject Re: How to force GC in Cassandra?
Date Fri, 12 Mar 2010 20:05:53 GMT
I think you mean compaction?

You can use nodeprobe / nodetool for that.

On Fri, Mar 12, 2010 at 12:40 PM, Weijun Li <> wrote:
> Suppose I insert a lot of new items but also delete a lot of new items
> daily, it will be ideal if I can force GC to happen during mid night (when
> traffic is low). Is there any way to manually force GC to be executed? In
> this way I can add a cronjob to trigger gc in mid night. I tried nodetool
> and the JMX interface but they don't seem to have that.
> -Weijun

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