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From Peter Schuller <>
Subject Re: Changing bloom filter false positive ratio
Date Thu, 13 Sep 2012 16:52:54 GMT
> changing it on some of them.  Can I just change that value through the
> cli and restart or are there any concerns I should have before trying
> to tweak that parameter?

You can change it, you don't have to restart. It will take effect on
new sstables - flushed and compacted, not on pre-existing sstables.

Keep in mind that you can get to about half the size of the default
(iirc with about 10% fp chance). Beyond that you have extremely
diminishing returns.

/ Peter Schuller (@scode,

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