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From Doug Meil <doug.m...@explorysmedical.com>
Subject Re: Scan Metrics in Ganglia
Date Thu, 01 Dec 2011 20:15:00 GMT

This can be a bit tricky because of the scan caching, for example...

http://hbase.apache.org/book.html#rs_metrics

12.4.2.14. hbase.regionserver.requests

Total number of read and write requests.  Requests correspond to
RegionServer
 RPC calls, thus a single Get will result in 1 request, but a Scan with
caching set to 1000 will result in 1 request for each 'next' call (i.e.,
 not each row).  A bulk-load request will constitute 1 request per
HFile.






On 12/1/11 2:23 PM, "sagar naik" <snaik@attributor.com> wrote:

>Hi,
>I can see metrics for get calls (number of get , avg time for get)
>However, I could not do so for scan calls
>
>Please let me know how can I measure
>
>Thanks
>-Sagar
>



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