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Posted to issues@hbase.apache.org by "Vladimir Rodionov (JIRA)" <ji...@apache.org> on 2016/06/09 00:51:20 UTC

[jira] [Commented] (HBASE-15995) Separate replication WAL reading from shipping

    [ https://issues.apache.org/jira/browse/HBASE-15995?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15321722#comment-15321722 ] 

Vladimir Rodionov commented on HBASE-15995:
-------------------------------------------

New thread pool? We have already 700-800 active threads per RS. That is too much. IMHO, of course.

> Separate replication WAL reading from shipping
> ----------------------------------------------
>
>                 Key: HBASE-15995
>                 URL: https://issues.apache.org/jira/browse/HBASE-15995
>             Project: HBase
>          Issue Type: Sub-task
>          Components: Replication
>    Affects Versions: 2.0.0
>            Reporter: Vincent Poon
>             Fix For: 2.0.0
>
>
> Currently ReplicationSource reads edits from the WAL and ships them in the same thread.
> By breaking out the reading from the shipping, we can introduce greater parallelism and lay the foundation for further refactoring to a pipelined, streaming model.



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