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From "ryan rawson (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HBASE-11467) New impl of Registry interface not using ZK + new RPCs on master protocol
Date Mon, 21 Jul 2014 19:50:39 GMT

    [ https://issues.apache.org/jira/browse/HBASE-11467?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14069151#comment-14069151

ryan rawson commented on HBASE-11467:

Maybe someone can explain to me the purpose of the cluster id in the authentication phase?
 If we're just reading it from the master, then providing it to the same machine via a different
RPC, why not just drop the cluster-id from the authentication handshake?  Or if you can't
remove it, use a constant cluster id in that part?

> 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
> - IsTableOnlineState
> - GetCurrentNrHRS
> Additionally, new HTTP endpoint would be added to the master, so anyone can request ClusterId
without any authentication.

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