[jira] [Updated] (HBASE-17436) Add facility to provide more information for Other Regions seen on Master UI

["Janos Gub (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/HBASE-17436?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Janos Gub updated HBASE-17436:
------------------------------
    Attachment: initial.patch

Attaching initial patch. In short I introduced metrics classes for RegionStates, and I update them from the AssignmentManager. In JMX each region's state is booked as a tag. I am not sure if it is the best way to do this, e.g. if the metrics are read and the AssignmentManager is deleting a region I think we can easily run into a ConcurrentModificationException. As an alternative I was thinking about somehow propagating the state to the regions and make this similar to the MetricsRegionAggregateSource. [~tedyu@apache.org] could you please share your thoughts?

> 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
>         Attachments: initial.patch
>
>
> [~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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