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From "Elliott Clark (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HBASE-4050) Update HBase metrics framework to metrics2 framework
Date Thu, 19 Jul 2012 01:06:35 GMT

    [ https://issues.apache.org/jira/browse/HBASE-4050?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13417922#comment-13417922
] 

Elliott Clark commented on HBASE-4050:
--------------------------------------

It took me a little to get the patch to apply.  

Looking at it, I don't see anything that's implementing hadoop 1 or 2's MetricSource so none
of the metrics implemented in this patch will get exposed.  Implementing that part is the
part that convinced me that most of the implementation of BaseMetricsSourceImpl needed to
be in Hbase-hadoop{1,2}-compat.  Just a registry is not enough to have things exposed through
metrics.

We should move this discussion to HBASE-6411 since this was converted to an umbrella issue
and 6411 is for master.
                
> 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: Elliott Clark
>            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-4050-2.patch, HBASE-4050-3.patch, HBASE-4050-5.patch, HBASE-4050-6.patch,
HBASE-4050-7.patch, HBASE-4050-8.patch, HBASE-4050-8_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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