[jira] [Created] (BEAM-11570) Flink 1.12 job server error: Trying to access closed classloader.

["Kyle Weaver (Jira)" <ji...@apache.org>]

Kyle Weaver created BEAM-11570:
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             Summary: Flink 1.12 job server error: Trying to access closed classloader.
                 Key: BEAM-11570
                 URL: https://issues.apache.org/jira/browse/BEAM-11570
             Project: Beam
          Issue Type: Bug
          Components: runner-flink
            Reporter: Kyle Weaver
            Assignee: Kyle Weaver


When running multiple jobs in local mode on the Flink 1.12 job server, pipeline construction for subsequent jobs fails with the error below. This error was caused by the addition of a new wrapper classloader to fix FLINK-16245.

RuntimeError: java.lang.IllegalStateException: Trying to access closed classloader. Please check if you store classloaders directly or indirectly in static fields. If the stacktrace suggests that the leak occurs in a third party library and cannot be fixed immediately, you can disable this check with the configuration 'classloader.check-leaked-classloader'.  at org.apache.flink.runtime.execution.librarycache.FlinkUserCodeClassLoaders$SafetyNetWrapperClassLoader.ensureInner(FlinkUserCodeClassLoaders.java:161)  at org.apache.flink.runtime.execution.librarycache.FlinkUserCodeClassLoaders$SafetyNetWrapperClassLoader.loadClass(FlinkUserCodeClassLoaders.java:168)  at java.lang.Class.forName0(Native Method)  at java.lang.Class.forName(Class.java:348)  at org.apache.beam.sdk.options.PipelineOptionsFactory.findCallersClassName(PipelineOptionsFactory.java:418)  at org.apache.beam.sdk.options.PipelineOptionsFactory.access$100(PipelineOptionsFactory.java:122)  at org.apache.beam.sdk.options.PipelineOptionsFactory$Builder.<init>(PipelineOptionsFactory.java:212)  at org.apache.beam.sdk.options.PipelineOptionsFactory$Builder.<init>(PipelineOptionsFactory.java:208)  at org.apache.beam.sdk.options.PipelineOptionsFactory$Builder.<init>(PipelineOptionsFactory.java:199)  at org.apache.beam.sdk.options.PipelineOptionsFactory.create(PipelineOptionsFactory.java:131)  at org.apache.beam.sdk.Pipeline.create(Pipeline.java:146)  at org.apache.beam.sdk.expansion.service.ExpansionService.expand(ExpansionService.java:394)  at org.apache.beam.sdk.expansion.service.ExpansionService.expand(ExpansionService.java:491)  at org.apache.beam.model.expansion.v1.ExpansionServiceGrpc$MethodHandlers.invoke(ExpansionServiceGrpc.java:232)  at org.apache.beam.vendor.grpc.v1p26p0.io.grpc.stub.ServerCalls$UnaryServerCallHandler$UnaryServerCallListener.onHalfClose(ServerCalls.java:172)  at org.apache.beam.vendor.grpc.v1p26p0.io.grpc.internal.ServerCallImpl$ServerStreamListenerImpl.halfClosed(ServerCallImpl.java:331)  at org.apache.beam.vendor.grpc.v1p26p0.io.grpc.internal.ServerImpl$JumpToApplicationThreadServerStreamListener$1HalfClosed.runInContext(ServerImpl.java:817)  at org.apache.beam.vendor.grpc.v1p26p0.io.grpc.internal.ContextRunnable.run(ContextRunnable.java:37)  at org.apache.beam.vendor.grpc.v1p26p0.io.grpc.internal.SerializingExecutor.run(SerializingExecutor.java:123)  at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)  at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)  at java.lang.Thread.run(Thread.java:748)


https://ci-beam.apache.org/job/beam_PreCommit_Python_PVR_Flink_Commit/1707/testReport/junit/apache_beam.runners.portability.flink_runner_test/FlinkRunnerTestStreaming/test_external_transform/



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