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Posted to issues@impala.apache.org by "Thomas Tauber-Marshall (Jira)" <ji...@apache.org> on 2021/02/18 20:15:00 UTC

[jira] [Created] (IMPALA-10519) Allow setting of num_reactors for KuduClient

Thomas Tauber-Marshall created IMPALA-10519:
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             Summary: Allow setting of num_reactors for KuduClient
                 Key: IMPALA-10519
                 URL: https://issues.apache.org/jira/browse/IMPALA-10519
             Project: IMPALA
          Issue Type: Improvement
    Affects Versions: Impala 4.0
            Reporter: Thomas Tauber-Marshall
            Assignee: Thomas Tauber-Marshall


The KuduClient allows setting a number of reactor threads, which are used for sending rpcs to Kudu such as for scans. Impala does not currently set this value, so it defaults to 4 threads, which may be too few for many use cases, since there is a single KuduClient per impalad. We should determine a better default (eg. based on the number of cpu cores) and also expose a flag to make it configurable.



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