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https://issues.apache.org/jira/browse/HBASE-18490?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16186229#comment-16186229
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huaxiang sun commented on HBASE-18490:
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Hi [~ram_krish], when the replica count is increased, the logic handing meta
update/region assignment is in EnableTableProcedure.
https://github.com/apache/hbase/blob/branch-1/hbase-server/src/main/java/org/apache/hadoop/hbase/master/procedure/EnableTableProcedure.java#L425
I tried to do a testing with branch-1, I run into an issue. I did the test with
branch-1.2 before, the increase/decrease handling is fine. I will post the test
update when the issue is fixed.
> 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: 2.0.0-alpha-1
> Reporter: ramkrishna.s.vasudevan
> Assignee: ramkrishna.s.vasudevan
> Fix For: 2.0.0-beta-1
>
> Attachments: HBASE-18490_master_1.patch, HBASE-18490_master_2.patch,
> HBASE-18490_master.patch, 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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