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From H├ęctor Izquierdo Seliva <izquie...@strands.com>
Subject Index interval tuning
Date Mon, 09 May 2011 15:49:49 GMT
Hi everyone.

I have a few sstables with around 500 million keys, and memory usage has
grown a lot, I suppose because of the indexes. This sstables are
comprised of skinny rows, but a lot of them. Would tuning index interval
make the memory usage go down? And what would the performance hit be? 

I had to up heap from 5GB to 8GB and tune memtable thresholds way lower
than what I was using with less data.

I'm running 0.7.5 in a 6 machine cluster with RF=3. HW is quad core
intel machines with 16GB ram, and md raid0 on three sata disks.

Thanks all for your time!



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