The only thing we saw is that with a high enough count of regions (close to a thousand and more) the cost of each memstore (2MB by default even when empty, and that's per family per region) is enough to put you at a higher risk of getting OOMEs if you don't modify your heap after enabling mslab. I would recommend enabling it on a few region servers to see how it goes if you aren't sure.
J-D On Sat, Jun 25, 2011 at 11:20 AM, Andrew Purtell <[email protected]> wrote: >>From: Jack Zhang(jian) <[email protected]> > >>Subject: Does anybody enable MSLAB in production system? I am not sure if >>it's stable enough for production system? > > > Yes, we use it in production and have not observed any negative effects of > its use. > > Best regards, > > > - Andy > > Problems worthy of attack prove their worth by hitting back. - Piet Hein (via > Tom White) >
