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From Aaron Crow <dirtyvagab...@yahoo.com>
Subject Re: Pathological ZK cluster: 1 server verbosely WARN'ing, other 2 servers pegging CPU
Date Thu, 13 May 2010 05:09:37 GMT
Hi Ted, yeah it's a big number, eh? We're essentially using Zookeeper to
track the state of cache entries, and currently we don't bound our cache. I
didn't realize how many entries we grow to over a long period of time, until
I started counting nodes in Zookeeper. But, sorry, I'm not sure what you
mean about synchronized GC? You mean maybe all our Zookeepers get hit by a
big GC at the same time, due to the very large db?

On Wed, May 12, 2010 at 9:21 PM, Ted Dunning <ted.dunning@gmail.com> wrote:

> Impressive number here, especially at your quoted "few per second" rate.
> Are you sure that you haven't inadvertently synchronized GC on multiple
> machines?
> On Wed, May 12, 2010 at 8:30 PM, Aaron Crow <dirtyvagabond@yahoo.com>
> wrote:
> > Right now we're at
> > 1.9 million. This isn't a bug of our application; it's actually a feature
> > (but perhaps an ill-conceived one).
> >

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