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From "Andrew Purtell (JIRA)" <j...@apache.org>
Subject [jira] [Assigned] (HBASE-17448) Export metrics from RecoverableZooKeeper
Date Wed, 28 Feb 2018 23:07:00 GMT

     [ https://issues.apache.org/jira/browse/HBASE-17448?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Andrew Purtell reassigned HBASE-17448:
--------------------------------------

    Assignee: Chinmay Kulkarni  (was: Andrew Purtell)

> Export metrics from RecoverableZooKeeper
> ----------------------------------------
>
>                 Key: HBASE-17448
>                 URL: https://issues.apache.org/jira/browse/HBASE-17448
>             Project: HBase
>          Issue Type: Improvement
>          Components: Zookeeper
>    Affects Versions: 1.3.1
>            Reporter: Andrew Purtell
>            Assignee: Chinmay Kulkarni
>            Priority: Major
>              Labels: patch
>             Fix For: 2.0.0, 1.4.0
>
>         Attachments: HBASE-17448-branch-1.patch, HBASE-17448.patch, HBASE-17448.patch
>
>
> Consider adding instrumentation to RecoverableZooKeeper that exposes metrics on the performance
and health of the embedded ZooKeeper client: latency histograms for each op type, number of
reconnections, number of ops where a reconnection was necessary to proceed, number of failed
ops due to CONNECTIONLOSS, number of failed ops due to SESSIONEXIPRED, number of failed ops
due to OPERATIONTIMEOUT. 
> RecoverableZooKeeper is a class in hbase-client so we can hook up the new metrics to
both client- and server-side metrics reporters. Probably this metrics source should be a process
singleton. 



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