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From "stack (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HBASE-11467) New impl of Registry interface not using ZK + new RPCs on master protocol
Date Mon, 14 Jul 2014 22:52:04 GMT

    [ https://issues.apache.org/jira/browse/HBASE-11467?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14061383#comment-14061383

stack commented on HBASE-11467:

bq. ...and make it not require authentication on the master (which will be tricky in itself
since authentication happens on the connection level).

How bad having a special, open RPC which always bypasses auth to read 'public' info like the
clusterid?   Which in essence is what is going on when we read from ZK?  A new 'Interface'?

> New impl of Registry interface not using ZK + new RPCs on master protocol
> -------------------------------------------------------------------------
>                 Key: HBASE-11467
>                 URL: https://issues.apache.org/jira/browse/HBASE-11467
>             Project: HBase
>          Issue Type: Sub-task
>          Components: Client, Consensus, Zookeeper
>            Reporter: Mikhail Antonov
>            Assignee: Mikhail Antonov
>             Fix For: 2.0.0
> Currently there' only one implementation of Registry interface, which is using ZK to
get info about meta. Need to create implementation which will be using  RPC calls to master
the client is connected to.
> That includes adding several new methods to master RPC protocol:
> - GetMetaRegionLocation
> - GetClusterId
> - IsTableOnlineState
> - GetCurrentNrHRS 

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