[jira] [Commented] (HBASE-23778) Region History Redo

["Akshita Jain (Jira)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/HBASE-23778?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17870146#comment-17870146 ] 

Akshita Jain commented on HBASE-23778:
--------------------------------------

I'm working on this using the namedqueue framework for storing region history events. I'll be raising a PR for this soon.

> Region History Redo
> -------------------
>
>                 Key: HBASE-23778
>                 URL: https://issues.apache.org/jira/browse/HBASE-23778
>             Project: HBase
>          Issue Type: Improvement
>            Reporter: Swaroopa Kadam
>            Assignee: Akshita Jain
>            Priority: Major
>
> My initial thought is mainly to extend the HBase shell(gradually extend to CLI and UI) to allow the use of 
> {code:java}
> where <regionid>{code}
> to get the necessary information and allow passing history as an additional parameter to get the history. We can configure how many transitions we want to store so that anything (ZK or small data structure in the table region itself or maybe something else) that is used for state management is not exploded.
> As pointed by
> [~andrew.purtell@gmail.com] need to be watchful of mistakes done in the past: HBASE-533 



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