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From "Janos Gub (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HBASE-17436) Add facility to provide more information for Other Regions seen on Master UI
Date Tue, 11 Apr 2017 17:30:41 GMT

    [ https://issues.apache.org/jira/browse/HBASE-17436?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15964683#comment-15964683
] 

Janos Gub commented on HBASE-17436:
-----------------------------------

My idea is to have each region's state available through JMX. I am thinking in reporting the
string state of each region as a metric.

First I was planning to place it in the HRegion's metrics (MetricsRegionSource, etc), but
as regions are not aware of their state, now I am planning to put it somehow the AssignmentManager's
metrics. To be more precise, creating a MetricsSource for RegionState and aggregating it in
the AssignmentManager's metrics. 

Let me come up with an implementation in the following days and discuss it.

> Add facility to provide more information for Other Regions seen on Master UI
> ----------------------------------------------------------------------------
>
>                 Key: HBASE-17436
>                 URL: https://issues.apache.org/jira/browse/HBASE-17436
>             Project: HBase
>          Issue Type: Improvement
>            Reporter: Ted Yu
>            Assignee: Janos Gub
>              Labels: ui
>
> [~rpednekar] and I were looking at a case where the count displayed under Other Regions
was high (~1200).
> Since the table page just maintains a count instead of List of region names, it is very
difficult for user to determine which regions belong to this category.
> We should provide facility to provide more details for this category (LOG, JMX, etc).



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