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From "Andrew Purtell (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HBASE-17448) Export metrics from RecoverableZooKeeper
Date Wed, 08 Feb 2017 20:20:41 GMT

    [ https://issues.apache.org/jira/browse/HBASE-17448?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15858496#comment-15858496
] 

Andrew Purtell commented on HBASE-17448:
----------------------------------------

[~sanjeevln]

> Export metrics from RecoverableZooKeeper
> ----------------------------------------
>
>                 Key: HBASE-17448
>                 URL: https://issues.apache.org/jira/browse/HBASE-17448
>             Project: HBase
>          Issue Type: Improvement
>          Components: Zookeeper
>            Reporter: Andrew Purtell
>
> 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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