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https://issues.apache.org/jira/browse/HBASE-6411?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Alex Baranau updated HBASE-6411:
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Attachment: HBASE-6411-3.patch
Tried to fix things we mentioned about. Created review request:
https://reviews.apache.org/r/6161
Removed those incr() methods we were willing to (it turned out that they were
only in hadoop 1.0 metrics2 lib, and were removed in hadoop 2.0, so we are ok
removing it and no need to ask hadoop guys about it).
Switched to using concurrent collections inside metric registries. It turned
out that "synchronize-guarded" methods where only in hadoop 2.0, not in hadoop
1.0. In both cases replaced them with working with concurrent collections.
Tried to remove throwing MetricsExceptions, but there are still cases where I
throw them. Not sure what is the best way to avoid this in those particular
cases. Advice is much appreciated.
Two Qs remained:
1. what about old MasterMetrics? Are we sure we want to replace it? I though we
want to leave it for some time
2. my Q from the comment above related to metricsSources interfaces - not
critical, can be addressed later, I guess.
> Move Master Metrics to metrics 2
> --------------------------------
>
> Key: HBASE-6411
> URL: https://issues.apache.org/jira/browse/HBASE-6411
> Project: HBase
> Issue Type: Sub-task
> Reporter: Elliott Clark
> Assignee: Elliott Clark
> Attachments: HBASE-6411-0.patch, HBASE-6411-1.patch,
> HBASE-6411-2.patch, HBASE-6411-3.patch, HBASE-6411_concept.patch
>
>
> Move Master Metrics to metrics 2
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