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From Ben West <bwsithspaw...@yahoo.com>
Subject Meta region hotspotting
Date Fri, 09 Dec 2011 00:05:38 GMT
Hey all,

We have a cluster with four region servers and about 2,000 regions. We're using the REST server,
and we've noticed that whatever region is hosting META gets 3-5x the number of requests that
the other regions do. 

It's my understanding that the client should cache the row start/end locations, and hence
should need to go to META only rarely after a little bit. But I'm sustaining tens of thousands
of requests per second for many minutes and they all still seem to hit META - does anyone
know why this would be?

We're using 0.90.4.

Thanks!
-Ben


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