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From "Ashu Pachauri (JIRA)" <j...@apache.org>
Subject [jira] [Created] (HBASE-17202) Master takes a long time to initialize
Date Wed, 30 Nov 2016 02:19:58 GMT
Ashu Pachauri created HBASE-17202:

             Summary: Master takes a long time to initialize
                 Key: HBASE-17202
                 URL: https://issues.apache.org/jira/browse/HBASE-17202
             Project: HBase
          Issue Type: Improvement
          Components: Balancer, master
            Reporter: Ashu Pachauri
            Assignee: Ashu Pachauri

On master failover or a full cluster restart, we create the RegionLocationFinder cache by
calculating block locations for every region used by the balancer. This greatly increases
the time it takes for the assignment manager to start and affects region availability in scenarios
of full cluster restart.

We should initialize assignment manager with the bare minimum information and asynchronously
load the block location cache.

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