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From "Luke Lu (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HBASE-4050) Update HBase metrics framework to metrics2 framework
Date Thu, 12 Jul 2012 04:20:35 GMT

    [ https://issues.apache.org/jira/browse/HBASE-4050?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13412503#comment-13412503
] 

Luke Lu commented on HBASE-4050:
--------------------------------

ResourceFinder seems to have a few nice properties but do we actually *require* them?, it's
> 1KLOC, 1/3 of the whole patch. According to a comment in http://goo.gl/LmsXp it doesn't
support comments etc in service definitions and that it doesn't offer perceivable performance
improvement over ServiceLoader. Also, why did you pick this particular implementation of ResourceFinder
from xbeans-3.7 (the current release is 3.11.1)?
                
> Update HBase metrics framework to metrics2 framework
> ----------------------------------------------------
>
>                 Key: HBASE-4050
>                 URL: https://issues.apache.org/jira/browse/HBASE-4050
>             Project: HBase
>          Issue Type: New Feature
>          Components: metrics
>    Affects Versions: 0.90.4
>         Environment: Java 6
>            Reporter: Eric Yang
>            Assignee: Alex Baranau
>            Priority: Critical
>             Fix For: 0.96.0
>
>         Attachments: 4050-metrics-v2.patch, 4050-metrics-v3.patch, HBASE-4050-0.patch,
HBASE-4050-1.patch, HBASE-4050.patch
>
>
> Metrics Framework has been marked deprecated in Hadoop 0.20.203+ and 0.22+, and it might
get removed in future Hadoop release.  Hence, HBase needs to revise the dependency of MetricsContext
to use Metrics2 framework.

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