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https://issues.apache.org/jira/browse/HBASE-26890?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17733148#comment-17733148
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Duo Zhang commented on HBASE-26890:
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OK, the marker edits only is for transiting from ACTIVE to STANDBY, and check
the code, seems the hacking is OK, we still use the createWriterInstance method
in AsyncFSWAL to create AsyncWriter, so it will not block new WAL
implementation...
> Make the WAL interface async so sync replication can be built up on the WAL
> interface
> -------------------------------------------------------------------------------------
>
> Key: HBASE-26890
> URL: https://issues.apache.org/jira/browse/HBASE-26890
> Project: HBase
> Issue Type: Improvement
> Components: Replication, wal
> Reporter: Duo Zhang
> Priority: Major
>
> Instead of hacking into the WAL implementation.
> This could make the implementation more general if later we want to change
> the WAL implementation.
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