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From "Andrew Purtell (JIRA)" <j...@apache.org>
Subject [jira] Commented: (HBASE-2465) HMaster should not contact each RS on startup
Date Mon, 19 Apr 2010 16:13:50 GMT

    [ https://issues.apache.org/jira/browse/HBASE-2465?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12858580#action_12858580
] 

Andrew Purtell commented on HBASE-2465:
---------------------------------------

If choosing one, I vote for regionserver. It is a good idea to start the regionserver RPC
right away also so it can throw back NSREs to clients as soon as possible.

> 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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