java.lang.RuntimeException: SDK harness sdk-0-0 disconnected. This usually means that the process running the pipeline code has crashed. Inspect the Worker Logs and the Diagnostics tab to determine the cause of the crash.SDK harness sdk-0-0 disconnected. This usually means that the process running the pipeline code has crashed. Inspect the Worker Logs and the Diagnostics tab to determine the cause of the crash.SDK harness sdk-0-0 disconnected. This usually means that the process running the pipeline code has crashed. Inspect the Worker Logs and the Diagnostics tab to determine the cause of the crash.Error encountered with the status channel: SDK harness sdk-0-0 disconnected.Workflow failed. Causes: S08:Read-from-BigQuery-query-Read-BigQueryTableSource--ParDo-BoundedSourceAsSDFWrapper--ParMultiDo-Bound/ProcessElementAndRestrictionWithSizing+Read from BigQuery query/PassThroughThenCleanup/ParMultiDo(Identity)+TableRows to MyData/Map/ParMultiDo(Anonymous)+FlatMapElements/FlatMap/ParMultiDo(Anonymous)+PAssert$0/GroupGlobally/Reify.Window/ParDo(Anonymous)/ParMultiDo(Anonymous)+PAssert$0/GroupGlobally/ParDo(ToSingletonIterables)/ParMultiDo(ToSingletonIterables)+PAssert$0/GroupGlobally/WithKeys/AddKeys/Map/ParMultiDo(Anonymous)+PAssert$0/GroupGlobally/GroupByKey/Write+Read from BigQuery query/PassThroughThenCleanup/View.AsIterable/MapElements/Map/ParMultiDo(Anonymous) failed., The job failed because a work item has failed 4 times. Look in previous log entries for the cause of each one of the 4 failures. If the logs only contain generic timeout errors related to accessing external resources, such as MongoDB, verify that the worker service account has permission to access the resource's subnetwork. For more information, see https://cloud.google.com/dataflow/docs/guides/common-errors. The work item was attempted on these workers: 

      Root cause: SDK disconnect.
      Worker ID: bigquerysamplesit0testtab-11192008-rkcm-harness-q7x1,

      Root cause: SDK disconnect.
      Worker ID: bigquerysamplesit0testtab-11192008-rkcm-harness-q7x1,

      Root cause: SDK disconnect.
      Worker ID: bigquerysamplesit0testtab-11192008-rkcm-harness-q7x1,

      Root cause: SDK disconnect.
      Worker ID: bigquerysamplesit0testtab-11192008-rkcm-harness-q7x1
	at org.apache.beam.runners.dataflow.TestDataflowRunner.run(TestDataflowRunner.java:149)
	at org.apache.beam.runners.dataflow.TestDataflowRunner.run(TestDataflowRunner.java:101)
	at org.apache.beam.runners.dataflow.TestDataflowRunner.run(TestDataflowRunner.java:56)
	at org.apache.beam.sdk.Pipeline.run(Pipeline.java:325)
	at org.apache.beam.sdk.testing.TestPipeline.run(TestPipeline.java:404)
	at org.apache.beam.sdk.testing.TestPipeline.run(TestPipeline.java:343)
	at org.apache.beam.examples.snippets.transforms.io.gcp.bigquery.BigQuerySamplesIT.testTableIO(BigQuerySamplesIT.java:121)
	at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103)
	at java.base/java.lang.reflect.Method.invoke(Method.java:580)
	at org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:59)
	at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:12)
	at org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:56)
	at org.junit.internal.runners.statements.InvokeMethod.evaluate(InvokeMethod.java:17)
	at org.apache.beam.sdk.testing.TestPipeline$1.evaluate(TestPipeline.java:331)
	at org.apache.beam.sdk.testing.TestPipeline$1.evaluate(TestPipeline.java:331)
	at org.apache.beam.sdk.testing.TestPipeline$1.evaluate(TestPipeline.java:331)
	at org.junit.rules.TestWatcher$1.evaluate(TestWatcher.java:61)
	at org.apache.beam.sdk.testing.TestPipeline$1.evaluate(TestPipeline.java:331)
	at org.junit.runners.ParentRunner$3.evaluate(ParentRunner.java:306)
	at org.junit.runners.BlockJUnit4ClassRunner$1.evaluate(BlockJUnit4ClassRunner.java:100)
	at org.junit.runners.ParentRunner.runLeaf(ParentRunner.java:366)
	at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:103)
	at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:63)
	at org.junit.runners.ParentRunner$4.run(ParentRunner.java:331)
	at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:79)
	at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:329)
	at org.junit.runners.ParentRunner.access$100(ParentRunner.java:66)
	at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:293)
	at org.junit.internal.runners.statements.RunBefores.evaluate(RunBefores.java:26)
	at org.junit.internal.runners.statements.RunAfters.evaluate(RunAfters.java:27)
	at org.junit.runners.ParentRunner$3.evaluate(ParentRunner.java:306)
	at org.junit.runners.ParentRunner.run(ParentRunner.java:413)
	at org.gradle.api.internal.tasks.testing.junit.JUnitTestClassExecutor.runTestClass(JUnitTestClassExecutor.java:112)
	at org.gradle.api.internal.tasks.testing.junit.JUnitTestClassExecutor.execute(JUnitTestClassExecutor.java:58)
	at org.gradle.api.internal.tasks.testing.junit.JUnitTestClassExecutor.execute(JUnitTestClassExecutor.java:40)
	at org.gradle.api.internal.tasks.testing.junit.AbstractJUnitTestClassProcessor.processTestClass(AbstractJUnitTestClassProcessor.java:60)
	at org.gradle.api.internal.tasks.testing.SuiteTestClassProcessor.processTestClass(SuiteTestClassProcessor.java:52)
	at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103)
	at java.base/java.lang.reflect.Method.invoke(Method.java:580)
	at org.gradle.internal.dispatch.ReflectionDispatch.dispatch(ReflectionDispatch.java:36)
	at org.gradle.internal.dispatch.ReflectionDispatch.dispatch(ReflectionDispatch.java:24)
	at org.gradle.internal.dispatch.ContextClassLoaderDispatch.dispatch(ContextClassLoaderDispatch.java:33)
	at org.gradle.internal.dispatch.ProxyDispatchAdapter$DispatchingInvocationHandler.invoke(ProxyDispatchAdapter.java:94)
	at jdk.proxy1/jdk.proxy1.$Proxy2.processTestClass(Unknown Source)
	at org.gradle.api.internal.tasks.testing.worker.TestWorker$2.run(TestWorker.java:176)
	at org.gradle.api.internal.tasks.testing.worker.TestWorker.executeAndMaintainThreadName(TestWorker.java:129)
	at org.gradle.api.internal.tasks.testing.worker.TestWorker.execute(TestWorker.java:100)
	at org.gradle.api.internal.tasks.testing.worker.TestWorker.execute(TestWorker.java:60)
	at org.gradle.process.internal.worker.child.ActionExecutionWorker.execute(ActionExecutionWorker.java:56)
	at org.gradle.process.internal.worker.child.SystemApplicationClassLoaderWorker.call(SystemApplicationClassLoaderWorker.java:113)
	at org.gradle.process.internal.worker.child.SystemApplicationClassLoaderWorker.call(SystemApplicationClassLoaderWorker.java:65)
	at worker.org.gradle.process.internal.worker.GradleWorkerMain.run(GradleWorkerMain.java:69)
	at worker.org.gradle.process.internal.worker.GradleWorkerMain.main(GradleWorkerMain.java:74)