On Mon, Feb 13, 2012 at 7:51 PM, Peter Schuller <peter.schul...@infidyne.com > wrote:
> For one thing, what does ReadStage's pending look like if you > repeatedly run "nodetool tpstats" on these nodes? If you're simply > bottlenecking on I/O on reads, that is the most easy and direct way to > observe this empirically. If you're saturated, you'll see active close > to maximum at all times, and pending racking up consistently. If > you're just close, you'll likely see spikes sometimes. > Yep, the readstage is backlogging consistently - but the thing I am trying to explain s why it is good sometimes in an environment that is pretty well controlled - other than being on ec2 > > -- > / Peter Schuller (@scode, http://worldmodscode.wordpress.com) > -- *Franc Carter* | Systems architect | Sirca Ltd <marc.zianideferra...@sirca.org.au> franc.car...@sirca.org.au | www.sirca.org.au Tel: +61 2 9236 9118 Level 9, 80 Clarence St, Sydney NSW 2000 PO Box H58, Australia Square, Sydney NSW 1215
