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Posted to issues@hbase.apache.org by "Duo Zhang (Jira)" <ji...@apache.org> on 2021/09/24 03:48:00 UTC

[jira] [Created] (HBASE-26293) Use reservoir sampling when selecting bootstrap nodes

Duo Zhang created HBASE-26293:
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             Summary: 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


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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