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Posted to issues@spark.apache.org by "Shixiong Zhu (Jira)" <ji...@apache.org> on 2020/02/23 21:50:00 UTC

[jira] [Created] (SPARK-30927) StreamingQueryManager should avoid keeping reference to terminated StreamingQuery

Shixiong Zhu created SPARK-30927:
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             Summary: StreamingQueryManager should avoid keeping reference to terminated StreamingQuery
                 Key: SPARK-30927
                 URL: https://issues.apache.org/jira/browse/SPARK-30927
             Project: Spark
          Issue Type: Improvement
          Components: Structured Streaming
    Affects Versions: 3.0.0
            Reporter: Shixiong Zhu


Right now StreamingQueryManager will keep the last terminated query until "resetTerminated" is called. When the last terminated query has lots of states (a large sql plan, cached RDDs, etc.), it will waste these memory unnecessarily.



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