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Posted to dev@hive.apache.org by "Vaibhav Gumashta (JIRA)" <ji...@apache.org> on 2013/09/05 20:58:53 UTC

[jira] [Created] (HIVE-5229) Better thread management for HiveServer2 async threads

Vaibhav Gumashta created HIVE-5229:
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             Summary: Better thread management for HiveServer2 async threads
                 Key: HIVE-5229
                 URL: https://issues.apache.org/jira/browse/HIVE-5229
             Project: Hive
          Issue Type: Improvement
          Components: HiveServer2
            Reporter: Vaibhav Gumashta
            Assignee: Vaibhav Gumashta


[HIVE-4617|https://issues.apache.org/jira/browse/HIVE-4617] provides support for async execution in HS2. The async (background) thread pool currently creates N threads (server config), which are alive all the time. If all the threads in the pool are busy, a new request is added to a blocking queue. However, we can improve the strategy by not having all the async (background) threads alive when there are no corresponding requests. The async threads should die after a certain timeout if there are no new requests to handle. 

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