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From "Yi Liang (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HBASE-18109) Assign system tables first (priority)
Date Sat, 03 Jun 2017 21:06:04 GMT

    [ https://issues.apache.org/jira/browse/HBASE-18109?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16036093#comment-16036093
] 

Yi Liang commented on HBASE-18109:
----------------------------------

Hi [~stack]
   I Just provide a patch, after review the AM code, I think the order only matters in bulk
assign of regions which happens when master start and server crash. I modify some code, so
that AssignProcedure of system regions will be submitted before user regions, and in that
way ProcedureExecutor will assign the system regions first. Let me know if I misunderstand
something, or need to consider more. Thanks

> Assign system tables first (priority)
> -------------------------------------
>
>                 Key: HBASE-18109
>                 URL: https://issues.apache.org/jira/browse/HBASE-18109
>             Project: HBase
>          Issue Type: Sub-task
>          Components: Region Assignment
>    Affects Versions: 2.0.0
>            Reporter: stack
>            Priority: Critical
>             Fix For: 2.0.0
>
>         Attachments: HBASE-18109-V1.patch
>
>
> Need this for stuff like the RSGroup table, etc. Assign these ahead of user-space regions.
> From 'Handle sys table assignment first (e.g. acl, namespace, rsgroup); currently only
hbase:meta is first.' of https://docs.google.com/document/d/1eVKa7FHdeoJ1-9o8yZcOTAQbv0u0bblBlCCzVSIn69g/edit#heading=h.oefcyphs0v0x



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