[jira] Commented: (HBASE-2465) HMaster should not contact each RS on startup

["Todd Lipcon (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/HBASE-2465?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12858386#action_12858386 ] 

Todd Lipcon commented on HBASE-2465:
------------------------------------

Essentially I have an RPC deadlock. The regionservers are sitting in reportForDuty trying to report to the master, whose RPC server isn't up. The master is sitting in verifyClusterState trying to talk to the regionservers, whose RPC servers aren't up.

I think the fix is that one of the two sides needs to run its RPC server before trying to contact the other.

> HMaster should not contact each RS on startup
> ---------------------------------------------
>
>                 Key: HBASE-2465
>                 URL: https://issues.apache.org/jira/browse/HBASE-2465
>             Project: Hadoop HBase
>          Issue Type: Improvement
>          Components: master
>            Reporter: Todd Lipcon
>
> On startup, in verifyClusterState, the master contacts each region server serially. If a region server is down it will retry for several minutes (if the client retry setting is high). During this period, the master cannot be shut down, and also isn't processing real work.

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