Hi Jitendr, thanks for your reply. If MutableCounterLong is uesed to IO/sec statistics, I think the value of MutableCounterLong should be divided by 10 and be reseted to zero per ten seconds in MutableCounterLong.snapshot method, is that right? But MutableCounterLong.snapshot method don't do that. I missed anything please tell me. Looking forward to your reply.
Thanks, LiuLei 2013/9/1 Jitendra Yadav <jeetuyadav200...@gmail.com> > Yes, MutableCounterLong helps to gather DataNode read/write statics. > There is more option available within this metric > > Regards > Jitendra > On 8/31/13, lei liu <liulei...@gmail.com> wrote: > > There is @Metric MutableCounterLong bytesWritten attribute in > > DataNodeMetrics, which is used to IO/sec statistics? > > > > > > 2013/8/31 Jitendra Yadav <jeetuyadav200...@gmail.com> > > > >> Hi, > >> > >> For IO/sec statistics I think MutableCounterLongRate and > >> MutableCounterLong more useful than others and for xceiver thread > >> number I'm not bit sure right now. > >> > >> Thanks > >> Jiitendra > >> On Fri, Aug 30, 2013 at 1:40 PM, lei liu <liulei...@gmail.com> wrote: > >> > > >> > Hi Jitendra, > >> > If I want to statistics number of bytes read per second,and display > the > >> result into ganglia, should I use MutableCounterLong or > MutableGaugeLong? > >> > > >> > If I want to display current xceiver thread number in datanode into > >> ganglia, should I use MutableCounterLong or MutableGaugeLong? > >> > > >> > Thanks, > >> > LiuLei > >> > > >> > > >> > 2013/8/30 Jitendra Yadav <jeetuyadav200...@gmail.com> > >> >> > >> >> Hi, > >> >> > >> >> Below link contains the answer for your question. > >> >> > >> >> > >> > http://hadoop.apache.org/docs/r1.2.0/api/org/apache/hadoop/metrics2/package-summary.html > >> >> > >> >> Regards > >> >> Jitendra > >> >> > >> >> On Fri, Aug 30, 2013 at 11:35 AM, lei liu <liulei...@gmail.com> > wrote: > >> >>> > >> >>> I use the metrics v2, there are COUNTER and GAUGE metric type in > >> metrics v2. > >> >>> What is the difference between the two？ > >> >>> > >> >>> Thanks, > >> >>> LiuLei > >> >> > >> >> > >> > > >> > > >
