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Posted to issues@hbase.apache.org by "stack (JIRA)" <ji...@apache.org> on 2017/12/20 17:52:03 UTC

[jira] [Commented] (HBASE-18840) Add functionality to refresh meta table at master startup

    [ https://issues.apache.org/jira/browse/HBASE-18840?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16298814#comment-16298814 ] 

stack commented on HBASE-18840:
-------------------------------

Sorry [~zyork]. I missed these pings.

Patch looks fine. Bunch of utility. There is nothing like this in HBCK already?

You need this committed? No harm I'd say.

An alternative might open a region over the hbase:meta in a read-only mode and then scan out the RegionInfo. This would skirt log splitting so if a crash, you'd be missing edits but it'd probably be as accurate if not more so than this approach. We need this latter but can come after this goes in.

> Add functionality to refresh meta table at master startup
> ---------------------------------------------------------
>
>                 Key: HBASE-18840
>                 URL: https://issues.apache.org/jira/browse/HBASE-18840
>             Project: HBase
>          Issue Type: Sub-task
>    Affects Versions: HBASE-18477
>            Reporter: Zach York
>            Assignee: Zach York
>         Attachments: HBASE-18840.HBASE-18477.001.patch, HBASE-18840.HBASE-18477.002.patch, HBASE-18840.HBASE-18477.003.patch
>
>
> If a HBase cluster’s hbase:meta table is deleted or a cluster is started with a new meta table, HBase needs the functionality to synchronize it’s metadata from Storage.



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