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From "stack (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HBASE-17436) Add facility to provide more information for Other Regions seen on Master UI
Date Fri, 12 May 2017 03:07:04 GMT

    [ https://issues.apache.org/jira/browse/HBASE-17436?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16007568#comment-16007568
] 

stack commented on HBASE-17436:
-------------------------------

[~gubjanos] Trying to understand. Per region, you want to show its state in JMX? The state
is transitory, and up in ZK and hbase:meta, and now we'd publish it over JMX too?

How are you tihnking of consuming these new metrics?  Via a JMX reader or via /metrics JSP
which would take the JMX and then dump it out as JSON?

bq. Rohan Pednekar 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.

Did you consider adding more columns to the main page? When you click on the table page, it
shows a listing of its regions.  Adding a column on its state would fit naturally here? Could
add sorting by columns and then sort regions by the type of transition they are in?  What
for the case when there !M regions? We push to JMX on a period regardless as to whether they
are being looked at or not. At least display in the page is on a poll basis. When 1M regions,
we should probably paginate. See elsewhere in the UI where you can ask for data as JSON. That
might be more consumable by dashboards and tooling -- and probably cheaper than going via
JMX. What you think?

> 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, usability
>             Fix For: 2.0.0
>
>         Attachments: HBASE-17436.patch, HBASE-17436-v2.patch, HBASE-17779-v3.patch, HBASE-17779-v4.patch,
initial.patch, Screen Shot 2017-04-24 at 8.43.31 PM.png, Screen Shot 2017-04-26 at 4.39.49
PM.png
>
>
> [~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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