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From "Andrey Stepachev (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (HBASE-12035) Keep table state in META
Date Tue, 10 Feb 2015 16:25:12 GMT

     [ https://issues.apache.org/jira/browse/HBASE-12035?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Andrey Stepachev updated HBASE-12035:
-------------------------------------
    Status: Patch Available  (was: Open)

> Keep table state in META
> ------------------------
>
>                 Key: HBASE-12035
>                 URL: https://issues.apache.org/jira/browse/HBASE-12035
>             Project: HBase
>          Issue Type: Improvement
>          Components: Client, master
>    Affects Versions: 2.0.0
>            Reporter: Enis Soztutar
>            Assignee: Andrey Stepachev
>            Priority: Critical
>             Fix For: 2.0.0
>
>         Attachments: 12035v2.txt, HBASE-12035 (1) (1).patch, HBASE-12035 (1) (1).patch,
HBASE-12035 (1).patch, HBASE-12035 (2).patch, HBASE-12035 (2).patch, HBASE-12035.patch, HBASE-12035.patch,
HBASE-12035.patch, HBASE-12035.patch, HBASE-12035.patch, HBASE-12035.patch, HBASE-12035.patch,
HBASE-12035.patch, HBASE-12035.patch, HBASE-12035.patch, HBASE-12035.patch, HBASE-12035.patch,
HBASE-12035.patch, HBASE-12035.patch, HBASE-12035.patch, HBASE-12035.patch, HBASE-12035.patch
>
>
> HBASE-7767 moved table enabled|disabled state to be kept in hdfs instead of zookeeper.
isTableDisabled() which is used in HConnectionImplementation.relocateRegion() now became a
master RPC call rather than a zookeeper client call. Since we do relocateRegion() calls everytime
we want to relocate a region (region moved, RS down, etc) this implies that when the master
is down, the some of the clients for uncached regions will be affected. 
> See HBASE-7767 and HBASE-11974 for some more background. 



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