[jira] [Created] (FLINK-12101) Race condition when concurrenty running uploaded jars via REST

[Shang Yuanchun (Jira)]

Maximilian Michels created FLINK-12101:
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             Summary: Race condition when concurrenty running uploaded jars via REST
                 Key: FLINK-12101
                 URL: https://issues.apache.org/jira/browse/FLINK-12101
             Project: Flink
          Issue Type: Bug
          Components: Runtime / REST
    Affects Versions: 1.7.2, 1.6.4
            Reporter: Maximilian Michels


Flink enables to upload and run Jars via REST. When multiple uploaded jars are invoked interactively to generate the JobGraph, the static initialization of the {{ContextEnvironment}}, when calls are interleaved, will override each other and produce a local execution of the jar. The local execution uses an incorrect class loader and throws an exception like this:

{noformat}
2019-04-02 14:25:05,549 ERROR <pipeline class>   - Failed to create job graph
java.lang.RuntimeException: Pipeline execution failed
    at org.apache.beam.runners.flink.FlinkRunner.run(FlinkRunner.java:117)
    at org.apache.beam.sdk.Pipeline.run(Pipeline.java:313)
    at org.apache.beam.sdk.Pipeline.run(Pipeline.java:299)
    at <pipeline class run>
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    at java.lang.reflect.Method.invoke(Method.java:498)
    at org.apache.flink.client.program.PackagedProgram.callMainMethod(PackagedProgram.java:529)
    at org.apache.flink.client.program.PackagedProgram.invokeInteractiveModeForExecution(PackagedProgram.java:421)
    at org.apache.flink.client.program.OptimizerPlanEnvironment.getOptimizedPlan(OptimizerPlanEnvironment.java:83)
    at org.apache.flink.client.program.PackagedProgramUtils.createJobGraph(PackagedProgramUtils.java:78)
    at org.apache.flink.client.program.PackagedProgramUtils.createJobGraph(PackagedProgramUtils.java:120)
    at org.apache.flink.runtime.webmonitor.handlers.utils.JarHandlerUtils$JarHandlerContext.toJobGraph(JarHandlerUtils.java:117)
    at org.apache.flink.runtime.webmonitor.handlers.JarRunHandler.lambda$getJobGraphAsync$7(JarRunHandler.java:151)
    at java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1590)
    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)
Caused by: org.apache.flink.runtime.client.JobExecutionException: Job execution failed.
    at org.apache.flink.runtime.jobmaster.JobResult.toJobExecutionResult(JobResult.java:146)
    at org.apache.flink.runtime.minicluster.MiniCluster.executeJobBlocking(MiniCluster.java:647)
    at org.apache.flink.streaming.api.environment.LocalStreamEnvironment.execute(LocalStreamEnvironment.java:123)
    at org.apache.beam.runners.flink.FlinkPipelineExecutionEnvironment.executePipeline(FlinkPipelineExecutionEnvironment.java:125)
    at org.apache.beam.runners.flink.FlinkRunner.run(FlinkRunner.java:114)
    ... 18 more
Caused by: org.apache.flink.streaming.runtime.tasks.StreamTaskException: Could not instantiate outputs in order.
    at org.apache.flink.streaming.api.graph.StreamConfig.getOutEdgesInOrder(StreamConfig.java:398)
    at org.apache.flink.streaming.runtime.tasks.StreamTask.createStreamRecordWriters(StreamTask.java:1164)
    at org.apache.flink.streaming.runtime.tasks.StreamTask.(StreamTask.java:212)
    at org.apache.flink.streaming.runtime.tasks.StreamTask.(StreamTask.java:190)
    at org.apache.flink.streaming.runtime.tasks.SourceStreamTask.(SourceStreamTask.java:51)
    at org.apache.flink.streaming.runtime.tasks.StoppableSourceStreamTask.(StoppableSourceStreamTask.java:39)
    at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
    at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62)
    at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
    at java.lang.reflect.Constructor.newInstance(Constructor.java:423)
    at org.apache.flink.runtime.taskmanager.Task.loadAndInstantiateInvokable(Task.java:1398)
    at org.apache.flink.runtime.taskmanager.Task.run(Task.java:682)
    ... 1 more
Caused by: java.lang.ClassNotFoundException: org.apache.beam.runners.flink.translation.wrappers.streaming.WorkItemKeySelector
    at java.net.URLClassLoader.findClass(URLClassLoader.java:382)
    at java.lang.ClassLoader.loadClass(ClassLoader.java:424)
    at org.apache.flink.runtime.execution.librarycache.FlinkUserCodeClassLoaders$ChildFirstClassLoader.loadClass(FlinkUserCodeClassLoaders.java:129)
    at java.lang.ClassLoader.loadClass(ClassLoader.java:357)
    at java.lang.Class.forName0(Native Method)
    at java.lang.Class.forName(Class.java:348)
    at org.apache.flink.util.InstantiationUtil$ClassLoaderObjectInputStream.resolveClass(InstantiationUtil.java:78)
    at java.io.ObjectInputStream.readNonProxyDesc(ObjectInputStream.java:1868)
    at java.io.ObjectInputStream.readClassDesc(ObjectInputStream.java:1751)
    at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:2042)
    at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1573)
    at java.io.ObjectInputStream.defaultReadFields(ObjectInputStream.java:2287)
    at java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:2211)
    at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:2069)
    at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1573)
    at java.io.ObjectInputStream.defaultReadFields(ObjectInputStream.java:2287)
    at java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:2211)
    at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:2069)
    at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1573)
    at java.io.ObjectInputStream.readObject(ObjectInputStream.java:431)
    at java.util.ArrayList.readObject(ArrayList.java:797)
    at sun.reflect.GeneratedMethodAccessor20.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    at java.lang.reflect.Method.invoke(Method.java:498)
    at java.io.ObjectStreamClass.invokeReadObject(ObjectStreamClass.java:1170)
    at java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:2178)
    at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:2069)
    at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1573)
    at java.io.ObjectInputStream.readObject(ObjectInputStream.java:431)
    at org.apache.flink.util.InstantiationUtil.deserializeObject(InstantiationUtil.java:566)
    at org.apache.flink.util.InstantiationUtil.deserializeObject(InstantiationUtil.java:552)
    at org.apache.flink.util.InstantiationUtil.deserializeObject(InstantiationUtil.java:540)
    at org.apache.flink.util.InstantiationUtil.readObjectFromConfig(InstantiationUtil.java:501)
    at org.apache.flink.streaming.api.graph.StreamConfig.getOutEdgesInOrder(StreamConfig.java:395)
    ... 12 more
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