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Posted to dev@hbase.apache.org by Mathias Herberts <ma...@gmail.com> on 2013/09/10 10:08:50 UTC

metrics names

Hi,

I've recently take a deeper look at the metrics in HBase and I was
wondering why some info ended up in the metric name rather than in tags for
RegionServerDynamicStatistics.

For example I see metrics names like:

RegionServerDynamicStatistics.tbl.-ROOT-.region.70236052.writerequestcount

with tag 'hostName'.

Why not move 'tbl.-ROOT-.region.70236052' in two tags 'tbl' and 'region'
and have the simpler
'RegionServerDynamicsStatistics.writerequestcount' metric name instead?

Same thing for things like
'RegionServerDynamicStatistics.tbl.TABLE.cf.COLFAM.storeFileCount', tags
'tbl' and 'cf' would seem more logical to me.

Mathias.