Hazelcast jet Python 异常:PythonService 初始化失败

如何解决Hazelcast jet Python 异常:PythonService 初始化失败

虽然执行python函数但它不起作用: 这是我的代码:

BatchStage<Object> bd1 = AggregateData.aggregate(data,Object);
bd1 = bd1.filter(k -> {
                    // some filters
                });

这里我使用的是 BatchStage:

bd1.map(f3 -> f3.toString()).apply(PythonTransforms.mapUsingPythonBatch(new PythonServiceConfig()
                             .setBaseDir("D:/")
                             .setHandlerModule("take_sqrt")))
                     .setLocalParallelism(1)
                     .writeTo(Sinks.logger());
                      
                      JobConfig cfg = new JobConfig().setName("python-function");
                      jetInstance.newJob(pipeline,cfg);

Python 代码很容易测试整个测试:

import numpy as np
def transform_list(input_list):
    return input_list

但是当我尝试运行它时,它给了我以下异常:

Exception in thread "main" java.util.concurrent.CompletionException: com.hazelcast.jet.JetException: PythonService initialization failed: java.lang.UnsupportedOperationException
    at java.base/java.util.concurrent.CompletableFuture.reportJoin(CompletableFuture.java:412)
    at java.base/java.util.concurrent.CompletableFuture.join(CompletableFuture.java:2108)
    at com.hazelcast.jet.Job.join(Job.java:148)
    at com.aiv.hazelcast.Application.setUp(Application.java:100)
    at com.aiv.hazelcast.Application.main(Application.java:42)
Caused by: com.hazelcast.jet.JetException: PythonService initialization failed: java.lang.UnsupportedOperationException
    at com.hazelcast.jet.python.PythonServiceContext.<init>(PythonServiceContext.java:109)
    at com.hazelcast.jet.python.PythonService.createContextWithRetry(PythonService.java:110)
    at com.hazelcast.jet.python.PythonService.lambda$factory$9a0f8f23$1(PythonService.java:90)
    at com.hazelcast.function.FunctionEx.apply(FunctionEx.java:47)
    at com.hazelcast.jet.impl.processor.ProcessorSupplierWithService.init(ProcessorSupplierWithService.java:55)
    at com.hazelcast.jet.impl.execution.init.ExecutionPlan.initProcSuppliers(ExecutionPlan.java:319)
    at com.hazelcast.jet.impl.execution.init.ExecutionPlan.initialize(ExecutionPlan.java:165)
    at com.hazelcast.jet.impl.execution.ExecutionContext.initialize(ExecutionContext.java:138)
    at com.hazelcast.jet.impl.JobExecutionService.lambda$initExecution$544ea571$1(JobExecutionService.java:241)
    at com.hazelcast.jet.function.RunnableEx.run(RunnableEx.java:30)
    at com.hazelcast.jet.impl.util.Util.doWithClassLoader(Util.java:467)
    at com.hazelcast.jet.impl.JobExecutionService.initExecution(JobExecutionService.java:241)
    at com.hazelcast.jet.impl.operation.InitExecutionOperation.run(InitExecutionOperation.java:73)
    at com.hazelcast.spi.impl.operationservice.Operation.call(Operation.java:189)
    at com.hazelcast.spi.impl.operationservice.impl.OperationRunnerImpl.call(OperationRunnerImpl.java:272)
    at com.hazelcast.spi.impl.operationservice.impl.OperationRunnerImpl.run(OperationRunnerImpl.java:248)
    at com.hazelcast.spi.impl.operationservice.impl.OperationRunnerImpl.run(OperationRunnerImpl.java:213)
    at com.hazelcast.spi.impl.operationexecutor.impl.OperationExecutorImpl.run(OperationExecutorImpl.java:411)
    at com.hazelcast.spi.impl.operationexecutor.impl.OperationExecutorImpl.runOrExecute(OperationExecutorImpl.java:438)
    at com.hazelcast.spi.impl.operationservice.impl.Invocation.doInvokeLocal(Invocation.java:600)
    at com.hazelcast.spi.impl.operationservice.impl.Invocation.doInvoke(Invocation.java:579)
    at com.hazelcast.spi.impl.operationservice.impl.Invocation.invoke0(Invocation.java:540)
    at com.hazelcast.spi.impl.operationservice.impl.Invocation.invoke(Invocation.java:240)
    at com.hazelcast.spi.impl.operationservice.impl.InvocationBuilderImpl.invoke(InvocationBuilderImpl.java:59)
    at com.hazelcast.jet.impl.MasterContext.invokeOnParticipant(MasterContext.java:264)
    at com.hazelcast.jet.impl.MasterContext.invokeOnParticipants(MasterContext.java:247)
    at com.hazelcast.jet.impl.MasterJobContext.lambda$tryStartJob$2(MasterJobContext.java:231)
    at com.hazelcast.jet.impl.JobCoordinationService.lambda$submitToCoordinatorThread$46(JobCoordinationService.java:1039)
    at com.hazelcast.jet.impl.JobCoordinationService.submitToCoordinatorThread(JobCoordinationService.java:1048)
    at com.hazelcast.jet.impl.JobCoordinationService.submitToCoordinatorThread(JobCoordinationService.java:1038)
    at com.hazelcast.jet.impl.MasterJobContext.tryStartJob(MasterJobContext.java:193)
    at com.hazelcast.jet.impl.JobCoordinationService.tryStartJob(JobCoordinationService.java:948)
    at com.hazelcast.jet.impl.JobCoordinationService.lambda$submitJob$1(JobCoordinationService.java:267)
    at com.hazelcast.jet.impl.JobCoordinationService.lambda$submitToCoordinatorThread$46(JobCoordinationService.java:1039)
    at com.hazelcast.jet.impl.JobCoordinationService.lambda$submitToCoordinatorThread$47(JobCoordinationService.java:1060)
    at com.hazelcast.internal.util.executor.CompletableFutureTask.run(CompletableFutureTask.java:64)
    at com.hazelcast.internal.util.executor.CachedExecutorServiceDelegate$Worker.run(CachedExecutorServiceDelegate.java:217)
    at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1130)
    at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:630)
    at java.base/java.lang.Thread.run(Thread.java:832)
    at com.hazelcast.internal.util.executor.HazelcastManagedThread.executeRun(HazelcastManagedThread.java:76)
    at com.hazelcast.internal.util.executor.HazelcastManagedThread.run(HazelcastManagedThread.java:102)

这是剩余的satck:

Caused by: java.lang.UnsupportedOperationException
    at java.base/sun.nio.fs.WindowsFileSystemProvider.readAttributes(WindowsFileSystemProvider.java:197)
    at java.base/java.nio.file.Files.readAttributes(Files.java:1843)
    at java.base/java.nio.file.Files.getPosixFilePermissions(Files.java:2117)
    at com.hazelcast.jet.impl.util.Util.editPermissions(Util.java:502)
    at com.hazelcast.jet.python.PythonServiceContext.makeExecutable(PythonServiceContext.java:142)
    at com.hazelcast.jet.python.PythonServiceContext.setupBaseDir(PythonServiceContext.java:194)
    at com.hazelcast.jet.python.PythonServiceContext.<init>(PythonServiceContext.java:84)

为什么没有执行,我已经安装了 Python 3.6,请帮帮我。

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