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From "Chetan Mehrotra (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (OAK-3654) Integrate with Metrics for various stats collection
Date Tue, 01 Dec 2015 08:40:11 GMT

    [ https://issues.apache.org/jira/browse/OAK-3654?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15033343#comment-15033343

Chetan Mehrotra commented on OAK-3654:

Some confusion. The default TimeSeries support is still there just that Metrics support is
disabled for that counter as it was having an appreciable overhead for this usecase

> Integrate with Metrics for various stats collection 
> ----------------------------------------------------
>                 Key: OAK-3654
>                 URL: https://issues.apache.org/jira/browse/OAK-3654
>             Project: Jackrabbit Oak
>          Issue Type: New Feature
>          Components: core
>            Reporter: Chetan Mehrotra
>            Assignee: Chetan Mehrotra
>             Fix For: 1.3.12
>         Attachments: OAK-3654-fast-clock.patch, OAK-3654-v1.patch, query-stats.png
> As suggested by [~ianeboston] in OAK-3478 current approach of collecting TimeSeries data
is not easily consumable by other monitoring systems. Also just extracting the last moment
data and exposing it in simple form would not be useful. 
> Instead of that we should look into using Metrics library [1] for collecting metrics.
To avoid having dependency on Metrics API all over in Oak we can come up with minimal interfaces
which can be used in Oak and then provide an implementation backed by Metric.
> This task is meant to explore that aspect and come up with proposed changes to see if
its feasible to make this change
> * metrics-core ~100KB in size with no dependency
> * ASL Licensee
> [1] http://metrics.dropwizard.io

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