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Posted to dev@flink.apache.org by "Weijie Guo (Jira)" <ji...@apache.org> on 2022/08/04 07:27:00 UTC

[jira] [Created] (FLINK-28800) HsFileDataManager should avoid busy-loop when fileReader has not data to read

Weijie Guo created FLINK-28800:
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             Summary: HsFileDataManager should avoid busy-loop when fileReader has not data to read
                 Key: FLINK-28800
                 URL: https://issues.apache.org/jira/browse/FLINK-28800
             Project: Flink
          Issue Type: Bug
          Components: Runtime / Network
            Reporter: Weijie Guo


When fileReader has no data to read, for example, most of data is consumed from memory. HsFileDataManager will encounter busy-loop problem, which will lead to a meaningless surge in CPU utilization and seriously affect performance.



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