[jira] [Commented] (HBASE-19080) Implement a procedure to convert RS from A to DA

["Duo Zhang (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/HBASE-19080?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16333461#comment-16333461 ] 

Duo Zhang commented on HBASE-19080:
-----------------------------------

Discussed with [~zghaobac] offline and we found a problem. We need to write out flush marker through WAL when flushing region. When we want to convert RS from A to DA, it usually means that the remote side is down and our dual output WAL is broken, then it is impossible for us to close the region and open it again with a new WAL since we need to flush the region before close it but the WAL has already been broken...

Need to find out a way to address the problem...

> Implement a procedure to convert RS from A to DA
> ------------------------------------------------
>
>                 Key: HBASE-19080
>                 URL: https://issues.apache.org/jira/browse/HBASE-19080
>             Project: HBase
>          Issue Type: Sub-task
>          Components: Replication
>            Reporter: Duo Zhang
>            Priority: Major
>              Labels: HBASE-19064
>             Fix For: 3.0.0
>
>




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