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Posted to issues@spark.apache.org by "Venkata krishnan Sowrirajan (Jira)" <ji...@apache.org> on 2021/06/02 18:45:00 UTC

[jira] [Created] (SPARK-35613) Cache commonly occurring strings from SQLMetrics and in JsonProtocol

Venkata krishnan Sowrirajan created SPARK-35613:
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             Summary: Cache commonly occurring strings from SQLMetrics and in JsonProtocol
                 Key: SPARK-35613
                 URL: https://issues.apache.org/jira/browse/SPARK-35613
             Project: Spark
          Issue Type: Bug
          Components: Spark Core, SQL
    Affects Versions: 3.2.0
            Reporter: Venkata krishnan Sowrirajan


SQLMetrics allows creation of different metrics like sizing, timing metrics etc. some of those names for the metric can be duplicated and along with that the `Some` wrapper objects adds additional memory overhead. In our internal platform, this has caused huge memory usage on driver causing Full GC to kick in every so often.

cc [~mridulm80]



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