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From "stack (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HBASE-10755) MetricsRegionSourceImpl creates metrics that start with a lower case
Date Mon, 17 Mar 2014 21:16:45 GMT

    [ https://issues.apache.org/jira/browse/HBASE-10755?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13938391#comment-13938391
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stack commented on HBASE-10755:
-------------------------------

+1

> MetricsRegionSourceImpl creates metrics that start with a lower case
> --------------------------------------------------------------------
>
>                 Key: HBASE-10755
>                 URL: https://issues.apache.org/jira/browse/HBASE-10755
>             Project: HBase
>          Issue Type: Bug
>    Affects Versions: 0.96.0
>            Reporter: Jean-Daniel Cryans
>            Assignee: Jean-Daniel Cryans
>            Priority: Minor
>         Attachments: HBASE-10755.patch
>
>
> Noticed something while looking at MBeans; some metric names are capitalized while others
aren't. This has the unwanted property of changing the metric names sorting. For example:
> Namespace_default_table_t_region_0122d54a90c9dc191857daf11e8a047d_metric_scanNext_num_ops
> namespace_default_table_t_region_0122d54a90c9dc191857daf11e8a047d_metric_appendCount
> The reason for this is that {{MutableHistogram}} uses {{StringUtils.capitalize()}} on
the metrics name (as create by {{MetricsRegionSourceImpl}} with "namespace_").
> I'm not sure what the intent was with capitalization, but either way it's a simple fix.
[~eclark]?



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