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https://issues.apache.org/jira/browse/HBASE-24352?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17237628#comment-17237628
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Andrew Kyle Purtell commented on HBASE-24352:
---------------------------------------------

Moved out of 2.4.

> Skip HDFSBlockDistribution calc when FS is not HDFS
> ---------------------------------------------------
>
>                 Key: HBASE-24352
>                 URL: https://issues.apache.org/jira/browse/HBASE-24352
>             Project: HBase
>          Issue Type: Improvement
>            Reporter: Anoop Sam John
>            Assignee: Anoop Sam John
>            Priority: Major
>             Fix For: 3.0.0-alpha-1, 2.5.0
>
>
> HDFSBlockDistribution is used in different places like Balancer,  
> DateTieredCompaction, CompactionTool etc. In Balancer area there is a config 
> 'hbase.master.balancer.uselocality' using which we can skip this.  But 
> irrespective of this config, if we are on non HDFS FS, we should skip this.  
> The block distribution issue many file status commands to underlying FS which 
> wont be that cheap in a cloud FS.  This jira aims at correcting all these 
> places. 



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