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  1. Beam
  2. BEAM-6698

Portable Validates Runner Tests on Flink flaky after update to gradle5

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    Details

    • Type: Bug
    • Status: In Progress
    • Priority: P2
    • Resolution: Unresolved
    • Affects Version/s: None
    • Fix Version/s: None
    • Component/s: test-failures
    • Labels:

      Description

      After upgrade to gradle 5 [1], the two portable runner test projects on jenkins

      • beam_PostCommit_Java_PVR_Flink_Streaming [2]
      • beam_PostCommit_Java_PVR_Flink_Batch [3]

      became flaky.

      First investigation seems to point the tests to be failing on direct buffer memory (e.g. [4]) while staging files.

      Although I am unsure, whether this is really the root cause, or something that shows up after some other failure.

      INFO: Transport failed
      org.apache.beam.vendor.grpc.v1p13p1.io.netty.util.internal.OutOfDirectMemoryError: failed to allocate 16777216 byte(s) of direct memory (used: 1895825695, max: 1908932608)
      

      As far as I know, we do not set `-XX:MaxDirectMemorySize` anywhere in our setup, neither does gradle itself. At least on my machine both gradle 4 and gradle 5 stick to the same jvm default

      ###########################################
      sun.misc.VM.maxDirectMemory(): 1908932608 Bytes
      sun.misc.VM.maxDirectMemory(): 1820 MB
      ###########################################
      

       

      Unfortunately this does not reproduce on (my) local machine. We might try to workaround here by increasing ` -XX:MaxDirectMemorySize==3G` but this would probably only hide the problem? But might still be helpful to increase temporarily on branch just to be sure, that this is indeed the root cause?

      [1] https://issues.apache.org/jira/browse/BEAM-6630
      [2] https://builds.apache.org/job/beam_PostCommit_Java_PVR_Flink_Streaming/
      [3] https://builds.apache.org/job/beam_PostCommit_Java_PVR_Flink_Batch/
      [4] https://scans.gradle.com/s/tpo3yffjznfxa/tests/yobvrae4rwsg4-go44ti5iq45vq

       

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              • Assignee:
                Unassigned
                Reporter:
                michel Michael Luckey
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