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ramkrishna.s.vasudevan commented on HBASE-18490:
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See the code inside this
https://github.com/apache/hbase/blob/master/hbase-server/src/main/java/org/apache/hadoop/hbase/master/procedure/ModifyTableProcedure.java#L364
https://github.com/apache/hbase/blob/master/hbase-server/src/main/java/org/apache/hadoop/hbase/util/ServerRegionReplicaUtil.java#L149.
It checks if the region replica is enable and if so it sets up the Region
replica as peer. But does not do anything with the META.
> Modifying a table descriptor to enable replicas does not create replica
> regions
> -------------------------------------------------------------------------------
>
> Key: HBASE-18490
> URL: https://issues.apache.org/jira/browse/HBASE-18490
> Project: HBase
> Issue Type: Bug
> Components: Region Assignment
> Affects Versions: 1.3.1, 1.2.6, 2.0.0-alpha-1
> Reporter: ramkrishna.s.vasudevan
> Assignee: ramkrishna.s.vasudevan
> Attachments: TestRegionReplicasWithRestartScenarios.java
>
>
> After creating a table, if we try to modify the table to enable region
> replication, the new Htable Descriptor is not taken into account and the
> table is enabled again with default single region.
> Ping [~enis], [~tedyu], [~devaraj].
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