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https://issues.apache.org/jira/browse/HBASE-26293?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Duo Zhang resolved HBASE-26293.
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Fix Version/s: 3.0.0-alpha-2
2.5.0
Hadoop Flags: Reviewed
Resolution: Fixed
Pushed to master and branch-2.
Thanks [~haxiaolin] for reviewing.
> Use reservoir sampling when selecting bootstrap nodes
> -----------------------------------------------------
>
> Key: HBASE-26293
> URL: https://issues.apache.org/jira/browse/HBASE-26293
> Project: HBase
> Issue Type: Sub-task
> Components: master, regionserver
> Reporter: Duo Zhang
> Assignee: Duo Zhang
> Priority: Major
> Fix For: 2.5.0, 3.0.0-alpha-2
>
>
> In the current implementation, we need to copy all the region servers out to
> a new array list, shuffle the list, and then get the first several elements.
> We could use reservoir sampling to reduce the overhead here.
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