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From Bing Jiang <jiangbinglo...@gmail.com>
Subject Re: Extending HBase Metrics Framework
Date Thu, 06 Jun 2013 07:42:06 GMT
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
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=

2013/6/6 Joarder KAMAL <joarderm@gmail.com>

> 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
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

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