Hello, Can anybody answer the question?
2013/9/1 lei liu <liulei...@gmail.com> > 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 >> >> >> >> >> >> >> >> > >> >> >> > >> > >