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Posted to hdfs-dev@hadoop.apache.org by "Tsz Wo Nicholas Sze (JIRA)" <ji...@apache.org> on 2015/07/24 00:37:04 UTC

[jira] [Created] (HDFS-8818) Allow Balancer to run faster

Tsz Wo Nicholas Sze created HDFS-8818:
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             Summary: Allow Balancer to run faster
                 Key: HDFS-8818
                 URL: https://issues.apache.org/jira/browse/HDFS-8818
             Project: Hadoop HDFS
          Issue Type: Improvement
          Components: balancer & mover
            Reporter: Tsz Wo Nicholas Sze
            Assignee: Tsz Wo Nicholas Sze


The original design of Balancer is intentionally to make it run slowly so that the balancing activities won't affect the normal cluster activities and the running jobs.

There are new use case that cluster admin may choose to balance the cluster when the cluster load is low, or in a maintain window.  So that we should have an option to allow Balancer to run faster.



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