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https://issues.apache.org/jira/browse/HBASE-25099?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17202557#comment-17202557
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Duo Zhang commented on HBASE-25099:
-----------------------------------
OK, then let me try to give a solution. I think the unclear thing is here how
to deal with compatibility, i.e, how to deal with the old 'META_REPLICAS_NUM'
configuration.
> Change meta replica number by altering meta table descriptor
> ------------------------------------------------------------
>
> Key: HBASE-25099
> URL: https://issues.apache.org/jira/browse/HBASE-25099
> Project: HBase
> Issue Type: Improvement
> Components: meta, read replicas
> Reporter: Duo Zhang
> Priority: Major
>
> As now we support altering meta table, it will be better to also deal with
> changing meta replica number using altering meta, i.e, we could unify the
> logic in MasterMetaBootstrap to ModifyTableProcedure, and another benefit is
> that we do not need to restart master when changing the replica number for
> meta.
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