Duo Zhang commented on HBASE-20046:

Moved the unnecessary issues out to HBASE-20360. Now the feature itself is 
almost ready and can be merged back to branch-2. Before that, I think we need 
to upload a new design doc here since there are some differences comparing to 
the original one in HBASE-9465. And we also need to resolve HBASE-17918.

> Reconsider the implementation for serial replication
> ----------------------------------------------------
>                 Key: HBASE-20046
>                 URL: https://issues.apache.org/jira/browse/HBASE-20046
>             Project: HBase
>          Issue Type: New Feature
>          Components: Replication
>            Reporter: Duo Zhang
>            Assignee: Duo Zhang
>            Priority: Major
>             Fix For: 3.0.0, 2.1.0
> When implementing HBASE-9465 we added two new families to meta table, one is 
> rep meta and the other is rep_position. In general I think rep_meta is OK to 
> put into meta table since it records the open and close sequence id for a 
> region, but for rep_position, I think it should be put into another system 
> table instead of meta table.
> This should be done before we finally release 2.0.0 or 1.5.0.

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