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https://issues.apache.org/jira/browse/HBASE-4050?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Alex Baranau updated HBASE-4050:
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Attachment: 4050-metrics-v3.patch
Added metrics v2 to HRegionServer. Renamed "v2" from the initial patch as per
may previous comment.
HRegionServerMetrics for now has only one gauge "regions #".
Added simplest unit-test. Also checked (locally) that new metrics are exposed
via JMX.
I did integration with metrics2 by analogy with DataNode metrics, some things
(esp. naming) should be reviewed.
Next things:
* make it work with hadoop 2.0+ (the shim)
* test at least one sink, e.g. FileSink, in addition to checking if things
exposed by JMX
* (?) test perf affect. Not sure this is needed...
* (?) add more metrics in new classes. I think we decided not to do it as a
part of this issue, as metrics in general should be reworked.
* review patch + fix found issues
> 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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