+1 And at the same time IMHO it's worth asking if we have everything covered with a meaningful metric, and add if missing, as well as remove those not useful.
Metrics2 is in Hadoop core 1 and 2. There was a backport into 1 at some point but the latest (1.0.3) has it for sure. - Andy On Jun 15, 2012, at 8:07 AM, Stack <st...@duboce.net> wrote: > On Fri, Jun 15, 2012 at 1:07 AM, Lars George <lars.geo...@gmail.com> wrote: >> Hi, >> >> I propose that we clean up the metrics for 0.96 as well (if that is not >> already underway. This includes switching to Hadoop Metrics v2 and adding >> all missing stats, as well as fixing those that are misleading or useless. >> For that reason I talked to our friends at Sematext during the Buzzwords >> HBase workshop, as well as to our internal HBase team. We all seem to agree >> and I'd be happy to setup some sort of call/task force to discuss what we >> need to work on etc. Obviously I would love for someone from the FB team to >> also partake as they have done heaps lately on that end - but I also >> understand if that is a timing issue. >> >> What do y'all think? My reasoning is that 0.96 might become 1.0, but I would >> love for the metrics to be stable by then. >> > > +1 and +1 on you being Ring Master (tell us what to do!) > > Some metrics are near useless. > > Metrics2 is in hadoop 1.0.x? 0.96.0 will require 1.0.x so that should be > fine. > St.Ack