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Posted to dev@hive.apache.org by "Gunther Hagleitner (JIRA)" <ji...@apache.org> on 2013/08/26 22:28:51 UTC

[jira] [Created] (HIVE-5151) Going green: Container re-cycling in Tez

Gunther Hagleitner created HIVE-5151:
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             Summary: Going green: Container re-cycling in Tez
                 Key: HIVE-5151
                 URL: https://issues.apache.org/jira/browse/HIVE-5151
             Project: Hive
          Issue Type: Bug
            Reporter: Gunther Hagleitner
            Assignee: Gunther Hagleitner
             Fix For: tez-branch


Tez reuses containers to schedule tasks from same and different vertices in the same JVM. It also offers an API to reuse objects across vertices, dags and sessions.

For hive we should reuse the operator plan as well as any hash tables (map join).

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