[jira] [Commented] (HBASE-12439) Procedure V2

["Stephen Yuan Jiang (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/HBASE-12439?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14725701#comment-14725701 ] 

Stephen Yuan Jiang commented on HBASE-12439:
--------------------------------------------

Update the roadmap based on discussion between [~mbertozzi] and [~syuanjiang] and feedback from August dev meetup discussion.  Basically the focus would be on the upcoming 2.0 release to have new assignment manager using Proc-V2.  

> Procedure V2
> ------------
>
>                 Key: HBASE-12439
>                 URL: https://issues.apache.org/jira/browse/HBASE-12439
>             Project: HBase
>          Issue Type: New Feature
>          Components: master
>    Affects Versions: 2.0.0
>            Reporter: Matteo Bertozzi
>            Assignee: Matteo Bertozzi
>              Labels: reliability
>         Attachments: Procedure v2 roadmap.pdf, ProcedureV2.pdf, Procedurev2Notification-Bus.pdf
>
>
> Procedure v2 (aka Notification Bus) aims to provide a unified way to build:
> * multi-steps procedure with a rollback/rollforward ability in case of failure (e.g. create/delete table)
> ** HBASE-12070
> * notifications across multiple machines (e.g. ACLs/Labels/Quotas cache updates)
> ** Make sure that every machine has the grant/revoke/label
> ** Enforce "space limit" quota across the namespace
> ** HBASE-10295 eliminate permanent replication zk node
> * procedures across multiple machines (e.g. Snapshots)
> * coordinated long-running procedures (e.g. compactions, splits, ...)
> * Synchronous calls, with the ability to see the state/result in case of failure.
> ** HBASE-11608 sync split
> still work in progress/initial prototype: https://reviews.apache.org/r/27703/



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