[jira] [Resolved] (HBASE-25938) The SnapshotOfRegionAssignmentFromMeta.initialize call in FavoredNodeLoadBalancer is just a dummy one

[Duo Zhang (Jira)]

     [ 
https://issues.apache.org/jira/browse/HBASE-25938?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
 ]

Duo Zhang resolved HBASE-25938.
-------------------------------
    Fix Version/s: 2.4.4
                   2.3.6
                   2.5.0
                   3.0.0-alpha-1
     Hadoop Flags: Reviewed
       Resolution: Fixed

Pushed to branch-2.3+.

Thanks [~niuyulin] for reviewig.

> The SnapshotOfRegionAssignmentFromMeta.initialize call in 
> FavoredNodeLoadBalancer is just a dummy one
> -----------------------------------------------------------------------------------------------------
>
>                 Key: HBASE-25938
>                 URL: https://issues.apache.org/jira/browse/HBASE-25938
>             Project: HBase
>          Issue Type: Bug
>          Components: Balancer, FavoredNodes
>            Reporter: Duo Zhang
>            Assignee: Duo Zhang
>            Priority: Major
>             Fix For: 3.0.0-alpha-1, 2.5.0, 2.3.6, 2.4.4
>
>
> After we introduced FavoredNodesManager, we do not need to load this 
> information every time when balancing, as all the updates to favored nodes 
> will go to FavoredNodesManager and it can update its in memory state 
> accordingly.
> The current SnapshotOfRegionAssignmentFromMeta.initialize is just a dummy one 
> in FavoredNodeLoadBalancer, as we never use it in the method.
> It will introduce a full scan on hbase:meta so let's just remove it.



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