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From "Chinmay Kulkarni (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (HBASE-17448) Export metrics from RecoverableZooKeeper
Date Thu, 20 Apr 2017 23:13:04 GMT

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

Chinmay Kulkarni updated HBASE-17448:
-------------------------------------
               Labels: patch  (was: )
        Fix Version/s: 1.3.1
    Affects Version/s: 1.3.1
               Status: Patch Available  (was: Open)

Added metrics for RecoverableZooKeeper related to specific exceptions, total failed ZooKeeper
API calls and latency histograms for read, write and sync operations. Also added unit tests
for the same. Added service provider for the ZooKeeper metrics implementation inside the hadoop
compatibility module.

> 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
>              Labels: patch
>             Fix For: 1.3.1
>
>
> 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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