[jira] [Commented] (HBASE-25549) A new hbase shell command: 'alter_lazy'

["Esteban Gutierrez (Jira)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/HBASE-25549?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17279002#comment-17279002 ] 

Esteban Gutierrez commented on HBASE-25549:
-------------------------------------------

Can this be a modifier of the existing {{alter}} command instead? I still have some doubts about any potential impact of this feature when altering properties such as codecs, replication or adding a new CF and the mis-use of a feature like this could cause.


> A new hbase shell command: 'alter_lazy'
> ---------------------------------------
>
>                 Key: HBASE-25549
>                 URL: https://issues.apache.org/jira/browse/HBASE-25549
>             Project: HBase
>          Issue Type: Improvement
>          Components: master, shell
>    Affects Versions: 3.0.0-alpha-1
>            Reporter: Zhuoyue Huang
>            Assignee: Zhuoyue Huang
>            Priority: Major
>             Fix For: 3.0.0-alpha-1
>
>
> Under normal circumstances, modifying a table will cause all regions belonging to the table to enter RIT. Imagine the following two scenarios：
>  # Someone entered the wrong configuration （e.g. negative 'hbase.busy.wait.multiplier.max' value） when altering the table, causing thousands of online regions to fail to open, leading to online accidents.
>  # Modify the configuration of a table, but this modification is not urgent, the regions are not expected to enter RIT immediately.
> 'alter_lazy' is a new command to modify a table without reopening any online regions except those regions were assigned by other threads or split etc.



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