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From "Jean-Daniel Cryans (JIRA)" <j...@apache.org>
Subject [jira] [Created] (HBASE-10755) MutableHistogram is capitalizing the metric names
Date Fri, 14 Mar 2014 22:24:42 GMT
Jean-Daniel Cryans created HBASE-10755:
------------------------------------------

             Summary: MutableHistogram is capitalizing the metric names
                 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
            Priority: Minor


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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