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From "Mithun Radhakrishnan (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HIVE-10761) Create codahale-based metrics system for Hive
Date Thu, 04 Jun 2015 21:27:38 GMT

    [ https://issues.apache.org/jira/browse/HIVE-10761?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14573617#comment-14573617
] 

Mithun Radhakrishnan commented on HIVE-10761:
---------------------------------------------

Question: Are we proposing to deprecate the old metrics system on trunk? What release are
we considering deprecation and removal?

> Create codahale-based metrics system for Hive
> ---------------------------------------------
>
>                 Key: HIVE-10761
>                 URL: https://issues.apache.org/jira/browse/HIVE-10761
>             Project: Hive
>          Issue Type: New Feature
>          Components: Diagnosability
>            Reporter: Szehon Ho
>            Assignee: Szehon Ho
>             Fix For: 1.3.0
>
>         Attachments: HIVE-10761.2.patch, HIVE-10761.3.patch, HIVE-10761.4.patch, HIVE-10761.5.patch,
HIVE-10761.6.patch, HIVE-10761.patch, hms-metrics.json
>
>
> There is a current Hive metrics system that hooks up to a JMX reporting, but all its
measurements, models are custom.
> This is to make another metrics system that will be based on Codahale (ie yammer, dropwizard),
which has the following advantage:
> * Well-defined metric model for frequently-needed metrics (ie JVM metrics)
> * Well-defined measurements for all metrics (ie max, mean, stddev, mean_rate, etc), 
> * Built-in reporting frameworks like JMX, Console, Log, JSON webserver
> It is used for many projects, including several Apache projects like Oozie.  Overall,
monitoring tools should find it easier to understand these common metric, measurement, reporting
models.
> The existing metric subsystem will be kept and can be enabled if backward compatibility
is desired.



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