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  1. Flink
  2. FLINK-24080

FileCache can leak user code classloader

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Details

    • Bug
    • Status: Closed
    • Major
    • Resolution: Fixed
    • 1.11.0
    • 1.12.0
    • Runtime / Task
    • None

    Description

      • Symptom After submitting a batch task for several times, the task is abnormal ,Caused by: java.lang.OutOfMemoryError: Direct buffer memory
      • MAT analyzing memory find five ChildFirstClassLoader instances, submit five batch job

      Attachments

        1. class add.png
          46 kB
          leishuiyu
        2. GC root.png
          185 kB
          leishuiyu
        3. screenshot-1.png
          441 kB
          leishuiyu

        Issue Links

          is fixed by

          Improvement - An improvement or enhancement to an existing feature or task. FLINK-16245 Use a delegating classloader as the user code classloader to prevent class leaks.

          • Critical - Crashes, loss of data, severe memory leak.
          • Closed
          is related to

          Improvement - An improvement or enhancement to an existing feature or task. FLINK-23147 ThreadPools can be poisoned by context class loaders

          • Minor - Minor loss of function, or other problem where easy workaround is present.
          • Open

          Activity

            People

              Unassigned Unassigned
              leishuiyu leishuiyu
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              Dates

                Created:
                Updated:
                Resolved: