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From "Jonathan Hsieh (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HBASE-4050) Update HBase metrics framework to metrics2 framework
Date Wed, 11 Jul 2012 20:23:35 GMT

    [ https://issues.apache.org/jira/browse/HBASE-4050?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13411949#comment-13411949
] 

Jonathan Hsieh commented on HBASE-4050:
---------------------------------------

bq. bq. hbase needs to be recompiled to run against hadoop 2.0 hdfs
bq. When did this happen ? In the pom all that changes for the hadoop 2.0 compile are that
some dependencies are changed. I just tried on a local machine only and just changing the
libs dir I was able to run either version (stand alone only so not really an exhaustive test
I know)

Here's one reason:
https://issues.apache.org/jira/browse/HBASE-5861?focusedCommentId=13259785&page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#comment-13259785
Here's another: HDFS-1620/HDFS-2412

                
> 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.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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