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Posted to dev@hive.apache.org by "Eugene Chung (Jira)" <ji...@apache.org> on 2020/05/13 06:59:00 UTC

[jira] [Created] (HIVE-23458) Introduce unified thread pool for scheduled jobs

Eugene Chung created HIVE-23458:
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             Summary: Introduce unified thread pool for scheduled jobs
                 Key: HIVE-23458
                 URL: https://issues.apache.org/jira/browse/HIVE-23458
             Project: Hive
          Issue Type: Improvement
          Components: HiveServer2
            Reporter: Eugene Chung
            Assignee: Eugene Chung


As I mentioned in [the comment of HIVE-23164|https://issues.apache.org/jira/browse/HIVE-23164?focusedCommentId=17089506&page=com.atlassian.jira.plugin.system.issuetabpanels%3Acomment-tabpanel#comment-17089506], I've made the unified scheduled executor service like org.apache.hadoop.hive.metastore.ThreadPool.

I think it could help
1. to minimize the possibility of making non-daemon threads when developers need ScheduledExecutorService
2. to achieve the utilization of server resources because the current situation is all of the modules make its own ScheduledExecutorService and all of the threads are just using for one job. 
3. an administrator of Hive server by providing hive.exec.scheduler.num.threads configuration.



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