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From "Jonathan Gray (JIRA)" <j...@apache.org>
Subject [jira] Commented: (HBASE-3141) Master RPC server needs to be started before an RS can check in
Date Mon, 01 Nov 2010 23:04:26 GMT

    [ https://issues.apache.org/jira/browse/HBASE-3141?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12927216#action_12927216
] 

Jonathan Gray commented on HBASE-3141:
--------------------------------------

@Stack, this change isn't in constructor.  the ordering change is within finishInitialization()
which is called in the run() of HMaster.  We're already handling exceptions/stopping appropriately
at this stage.

> Master RPC server needs to be started before an RS can check in
> ---------------------------------------------------------------
>
>                 Key: HBASE-3141
>                 URL: https://issues.apache.org/jira/browse/HBASE-3141
>             Project: HBase
>          Issue Type: Bug
>          Components: master
>            Reporter: Jonathan Gray
>            Priority: Critical
>             Fix For: 0.90.0
>
>         Attachments: HBASE-3141-v1.patch
>
>
> Starting up an RPC server is done in two steps.  In the constructor, we instantiate the
RPC server.  Then in startServiceThreads() we start() it.
> If someone RPCs in between the instantiation and the start(), it seems that bad things
can happen.  We need to make sure this can't happen and there aren't any races here.

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