[jira] [Comment Edited] (HBASE-20768) should we bypass the RegionLocationFinder#scheduleFullRefresh execution when master has not initialized

["chenxu (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/HBASE-20768?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16530885#comment-16530885 ] 

chenxu edited comment on HBASE-20768 at 7/3/18 6:14 AM:
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Thank you for your reply [~apurtell], what I concerns is that If master not Initialized, meta region will not be reassigned. In our env, hbase.balancer.tablesOnMaster includes hbase:meta, if the active HMaster shutdown, it will take a long time for the meta region be reassigned and effect the normal access of the cluster.


was (Author: javaman_chen):
Thank you for your reply [~apurtell], what I concerns is that If master not Initialized, meta region will not be reassigned. In our env, hbase.balancer.tablesOnMaster includes hbase:meta, if the active HMaster shutdown, it will take a long time for meta region reassigned and effect the normal access of the cluster.

> should we bypass the RegionLocationFinder#scheduleFullRefresh execution when master has not initialized
> -------------------------------------------------------------------------------------------------------
>
>                 Key: HBASE-20768
>                 URL: https://issues.apache.org/jira/browse/HBASE-20768
>             Project: HBase
>          Issue Type: Improvement
>          Components: Balancer
>            Reporter: chenxu
>            Priority: Major
>         Attachments: HBASE-20768-master-v1.patch
>
>
> Our KYLIN cluster has about 300K Regions, when master startup, It takes a long time to do RegionLocationFinder#scheduleFullRefresh.
> During this period, CUBE cannot be built, because master has not initialized.
> Although we can ignore locality factor through HBASE-18478, but i think it would be better if we bypass the RegionLocationFinder#scheduleFullRefresh until the master initialized



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