[jira] [Commented] (HBASE-23055) Alter hbase:meta

["Michael Stack (Jira)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/HBASE-23055?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17009295#comment-17009295 ] 

Michael Stack commented on HBASE-23055:
---------------------------------------

Kicking this one again. Simplified the patch (#995). Removes the bit that had us asking Master for table state. Instead, added to Registry querying hbase:meta table state. ZKAsyncRegistry has added an implementation that queries mirrored table state out of zk. If you want to edit meta, currently MirroringTableStateManager must be enabled (default). MTSM is to be removed in hbase3. Follow-on is alternate registry implementation for hbase3 (likely built on the incoming Master-based Registry work).

Want to include this in hbase-2.3.0.

> Alter hbase:meta
> ----------------
>
>                 Key: HBASE-23055
>                 URL: https://issues.apache.org/jira/browse/HBASE-23055
>             Project: HBase
>          Issue Type: Task
>            Reporter: Michael Stack
>            Assignee: Michael Stack
>            Priority: Major
>             Fix For: 3.0.0, 2.3.0
>
>
> hbase:meta is currently hardcoded. Its schema cannot be change.
> This issue is about allowing edits to hbase:meta schema. It will allow our being able to set encodings such as the block-with-indexes which will help quell CPU usage on host carrying hbase:meta. A dynamic hbase:meta is first step on road to being able to split meta.



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