[jira] [Created] (HBASE-4310) SlabCache metrics bugfix.

[Li Pi (JIRA)]

SlabCache metrics bugfix.
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                 Key: HBASE-4310
                 URL: https://issues.apache.org/jira/browse/HBASE-4310
             Project: HBase
          Issue Type: Sub-task
            Reporter: Li Pi
            Assignee: Li Pi
            Priority: Minor
         Attachments: metrics.txt

math error in metrics makes it display incorrect metrics. also no longer logs 
metrics of size 0 to save space.

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