Thanks for pointing out the way. I've looked at the Git code as well however looking back at the apidocs <http://hbase.apache.org/apidocs/> for HBase-0.97.0-Snapshot I can only see org.apache.hadoop.metrics2 package there.
I am using HBase 0.94.7, could you kindly help directing to the right code repo and package? Thanks again... Regards, Joarder Kamal On 7 June 2013 03:50, Jeff Kolesky <[email protected]> wrote: > If you want to add metrics, you can implement a > org.apache.hadoop.metrics.Updater and register it with a MetricsContext. > There is an example at: > > > https://github.com/jeffkole/odoop/blob/master/hbase-filters/src/main/java/com/opower/hadoop/hbase/filter/DeployedFilterMetrics.java > > This exposes metrics for a filter that I wrote, but if you want to pull out > metrics for HBase internals, you likely need to do modify HBase source code > to get at the data or hook up to your metric updater. > > Jeff > > > On Thu, Jun 6, 2013 at 10:35 AM, Joarder KAMAL <[email protected]> wrote: > > > Hi Bing, > > > > Thanks for answering. > > > > 1. Probably my question was unclear. I was asking whether it is possible > to > > generate custom metrics from HBase by modifying the source code. > > 2. Thanks for letting me know that it is possible to log the metrics in > any > > kind of file. But I guess it would be still in XML format !! Can I save > the > > logs in raw text format?? I'll try to do this tomorrow. > > > > Thanks again. > > > > > > Regards, > > Joarder Kamal > > > > > > > > On 6 June 2013 17:42, Bing Jiang <[email protected]> wrote: > > > > > 1) Metrics infos have been collected from HMaster\RS, and covering rpc, > > > jvm, hbase functional module (like compaction\flush\request > > Count\DataBlock > > > read &&write etc). > > > > > > 2) You can set metrics info handler in conf/hadoop-metrics.properties > > > for example, you can set hbase.class = > > > org.apache.hadoop.metrics.ganglia.GangliaContext31, it will tell > Metrics > > > System where the metrics will be sent to. Of course, this is Ganglia. > > > if set > > > > hbase.class=org.apache.hadoop.hbase.metrics.file.TimeStampingFileContext, > > > it will write the metrics to file. > > > > > > # hbase.class=org.apache.hadoop.metrics.ganglia.GangliaContext > > > # hbase.class=org.apache.hadoop.metrics.ganglia.GangliaContext31 > > > # hbase.period=10 > > > # hbase.servers=10.100.4.151:8650 > > > > #hbase.class=org.apache.hadoop.hbase.metrics.file.TimeStampingFileContext > > > #hbase.period=10 > > > #hbase.fileName=/opt/hbase/logs/metrics_hbase.log > > > > > > > > > > > > > > > 2013/6/6 Joarder KAMAL <[email protected]> > > > > > > > Two Questions: > > > > > > > > 1. Is it possible to extend HBase metrics/reporting framework to > > generate > > > > custom metrics? I was looking at the api docs > > > > http://hbase.apache.org/apidocs/ > > > > 2. Is there any way to write my own client (instead of using Ganglia > or > > > > else) to retrieve the currently available metrics? > > > > > > > > HBase version: 0.94.7 > > > > > > > > Any suggestions will be very helpful. > > > > > > > > Many thanks ... > > > > > > > > Regards, > > > > Joarder Kamal > > > > > > > > > > > > > > > > -- > > > Bing Jiang > > > Tel：(86)134-2619-1361 > > > weibo: http://weibo.com/jiangbinglover > > > BLOG: http://blog.sina.com.cn/jiangbinglover > > > National Research Center for Intelligent Computing Systems > > > Institute of Computing technology > > > Graduate University of Chinese Academy of Science > > > > > > > > > -- > *Jeff Kolesky* > Chief Software Architect > *Opower* >
