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Posted to dev@hbase.apache.org by "Ashu Pachauri (JIRA)" <ji...@apache.org> on 2016/11/30 02:19:58 UTC

[jira] [Created] (HBASE-17202) Master takes a long time to initialize

Ashu Pachauri created HBASE-17202:
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             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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