[jira] [Comment Edited] (HBASE-21521) Expose master startup status via JMX and web UI

["Rushabh S Shah (Jira)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/HBASE-21521?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16916044#comment-16916044 ] 

Rushabh S Shah edited comment on HBASE-21521 at 8/26/19 6:36 PM:
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Is this feature/improvement still required ? 
I would like to contribute to this jira if no one else is working on it. My front end skills are not that sharp but if no one else volunteers I will try to refine them. Initially I can expose all the jmx metrics and then work on adding them to web ui.
[~apurtell] Please suggest.


was (Author: shahrs87):
Is this feature/improvement still required ? 
I would like to contribute to this jira if no one else is working on it. My front end skills are not that sharp but if no one else volunteers I will try to refine them. Initially I can expose all the jmx metrics and then work on adding them to web ui.
Please suggest.

> Expose master startup status via JMX and web UI
> -----------------------------------------------
>
>                 Key: HBASE-21521
>                 URL: https://issues.apache.org/jira/browse/HBASE-21521
>             Project: HBase
>          Issue Type: Improvement
>          Components: master, UI
>            Reporter: Andrew Purtell
>            Priority: Major
>
> Add an internal API to the master for tracking startup progress. Expose this information via JMX.
> Modify the master to bring the web UI up sooner. Will require tweaks to various views to prevent attempts to retrieve state before the master fully up (or else expect NPEs). Currently, before the master has fully initialized an attempt to use the web UI will return a 500 error code and display an error page.
> Finally, update the web UI to display startup progress, like HDFS-4249. 
> Filing this for branch-1. Need to check what if anything is available or improved in branch-2 and master.



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