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