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https://issues.apache.org/jira/browse/HBASE-4050?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13416736#comment-13416736
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Elliott Clark commented on HBASE-4050:
--------------------------------------
{code}
Collection<MutableMetric> metrics()
{code}
Removing from a linked list (the collection backing the map in question) is
icky. I filed a jira a while ago. HADOOP-8313
yes this is not great. As soon as possible I would love to remove the metrics
factory and all related maps. That would greatly simplify stuff. I think we
should get things working now and refactor away as soon as possible.
> 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.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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