Created 12-28-2015 02:50 PM
currently in ambari 2.1.2
i can see metrics for ALL region servers when i create a widget.
can i create metrics per region server.
objective: Find out whether hot spotting is occurring or not.
Currently i am at a loss,because all metrics for hbase rs are AGGREGATED
Created 12-29-2015 09:56 AM
You can use https://github.com/u39kun/ambari-grafana
It has just been updated to segregate by server.
Created 12-28-2015 02:50 PM
i tried steps here
but no effect
Created 12-29-2015 09:56 AM
You can use https://github.com/u39kun/ambari-grafana
It has just been updated to segregate by server.
Created 12-30-2015 02:15 AM
hi Rahul
this is helpful. i got grafana up but i notice the dashboard metric queries are again based on
aggregated values when i select region server as a component. screen-shot-2015-12-30-at-101503-am.png
Created 12-30-2015 01:06 PM
i am able to see per host metrics now in ambari-grafana
git commit 5 hours ago 🙂
https://github.com/u39kun/ambari-grafana/commit/f6048e17a901183b5451b66e75d71184c1999fa5
Created 12-29-2015 02:43 PM
you can also go to HBase UI and look at each regionserver individually. You don't need a graphical tool to identify hot-spotting.
Created 12-30-2015 02:19 AM
Hi Artem,
agree we don't need ui per se for this. Hot spotting was just 1 use case.
At an aggregated level, its useful to see if something is abnormal. next step is to find out which region server/ host has abnormal behaviour.
Created 12-30-2015 03:18 AM
if the option to build the widget is not available, you can always file a jira @vishnu rao
Created 12-30-2015 01:51 PM
@vishnu rao alternatively, you can try building your own widget in Ambari, I'll be honest I didn't try it but as far as I know you can build widget per host or aggregated.
Created 02-05-2016 08:13 PM
@vishnu rao this solution is not scalable, if you have 100 RS servers, you'll need 100 widgets, no? Please accept the best answer to close.