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From "Nicolas Liochon (JIRA)" <j...@apache.org>
Subject [jira] [Resolved] (HBASE-9637) HBase internal (ROOT and META) tables replication factor configuration apart from the user table data
Date Mon, 23 Sep 2013 14:40:02 GMT

     [ https://issues.apache.org/jira/browse/HBASE-9637?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Nicolas Liochon resolved HBASE-9637.
------------------------------------

    Resolution: Duplicate

Yes. It's seems to be a duplicate of HBASE-6773 (but note that a patch is welcome :-) ).
                
> HBase internal (ROOT and META) tables replication factor configuration apart from the
user table data
> -----------------------------------------------------------------------------------------------------
>
>                 Key: HBASE-9637
>                 URL: https://issues.apache.org/jira/browse/HBASE-9637
>             Project: HBase
>          Issue Type: New Feature
>          Components: master, regionserver
>            Reporter: shankarlingayya
>            Priority: Minor
>
> {noformat}
> HBase has two types of data
> 1. Internal data (ROOT & META tables)
> 2. User loaded table data
> For accessing the HBase user data we must have ROOT & META, assume that
> the nodes in which ROOT & META table are down/not accessible (assuming 3 replication
factor) all the 3 nodes went down.
> Now the entire HBase system in not accessible (user data will be TB, while ROOT &
META Table will be few MB)
> so, it is better we can have the flexibility of configuring the more replication for
Internal Table (ROOT & META)
> Already we have the replication configuration in HBase but the problem with that is it
is for both internal table (ROOT. META) & also for User Table data..
> Since user data willl be in TB so, increasing the replication will consume huge space
for user which is not feasible.
> So it is better and safe to have more replication of only the Internal tables (ROOT,
META) by giving sepecate configurable parameter to user.
> {noformat}

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