There is @Metric MutableCounterLong bytesWritten attribute in DataNodeMetrics, which is used to IO/sec statistics?
2013/8/31 Jitendra Yadav <[email protected]> > 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 <[email protected]> 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 <[email protected]> > >> > >> 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 <[email protected]> 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 > >> > >> > > >
