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Posted to issues@hbase.apache.org by "Elliott Clark (JIRA)" <ji...@apache.org> on 2016/03/22 19:56:25 UTC

[jira] [Commented] (HBASE-15519) Add per-user metrics

    [ https://issues.apache.org/jira/browse/HBASE-15519?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15207043#comment-15207043 ] 

Elliott Clark commented on HBASE-15519:
---------------------------------------

Anything that has to do a map lookup for metrics is awful. We should make sure that we never add that back. We got a 20% improvement by removing map lookups in the metrics path.

> Add per-user metrics 
> ---------------------
>
>                 Key: HBASE-15519
>                 URL: https://issues.apache.org/jira/browse/HBASE-15519
>             Project: HBase
>          Issue Type: Sub-task
>          Components: metrics
>            Reporter: Enis Soztutar
>
> Per-user metrics will be useful in multi-tenant cases where we can emit number of requests, operations, num RPCs etc at the per-user aggregate level per regionserver. We currently have throttles per user, but no way to monitor resource usage per-user. 
> Looking at these metrics, operators can adjust throttles, do capacity planning, etc per-user. 



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