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https://issues.apache.org/jira/browse/HBASE-4213?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13087507#comment-13087507
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Subbu M Iyer commented on HBASE-4213:
-------------------------------------
>> If a new region for this table comes in meantime, it'll be ok? It'll find
>> new schema?
Yes. New regions are perfectly fine as they will see new HTD.
>> What happens if master decides to balance a region at this time? Or disable
>> it? While reopenRegions is
>> running?
Hmm. This one is interesting. Let me take a closer look at how to address it.
Any suggestions?
>> What Ted says on delete cf.
TBD. I am on it.
>>Can you look in zk or something rather than wait on a timer before moving on?
Yup. Will do.
> Support instant schema updates with out master's intervention (i.e with out
> enable/disable and bulk assign/unassign)
> --------------------------------------------------------------------------------------------------------------------
>
> Key: HBASE-4213
> URL: https://issues.apache.org/jira/browse/HBASE-4213
> Project: HBase
> Issue Type: Improvement
> Reporter: Subbu M Iyer
> Assignee: Subbu M Iyer
> Fix For: 0.92.0
>
> Attachments: HBASE-4213-Instant_schema_change.patch,
> HBASE-4213_Instant_schema_change_-Version_2_.patch
>
>
> This Jira is a slight variation in approach to what is being done as part of
> https://issues.apache.org/jira/browse/HBASE-1730
> Support instant schema updates such as Modify Table, Add Column, Modify
> Column operations:
> 1. With out enable/disabling the table.
> 2. With out bulk unassign/assign of regions.
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