damccorm opened a new issue, #21048:
URL: https://github.com/apache/beam/issues/21048
if a pipeline has a transform with a sideinput and you call `pipeline.run()`
two times to create Dataflow jobs, the second job will see a runtime error
below in Dataflow worker.
```
Error message from worker: java.lang.RuntimeException:
java.lang.IllegalStateException: IsmSideInputReader
only supports IsmReader as a reader but was AvroByteReader.
org.apache.beam.runners.dataflow.worker.BatchModeExecutionContext.lambda$getSideInputReader$0(BatchModeExecutionContext.java:297)
org.apache.beam.vendor.guava.v26_0_jre.com.google.common.base.Suppliers$NonSerializableMemoizingSupplier.get(Suppliers.java:167)
org.apache.beam.runners.dataflow.worker.LazilyInitializedSideInputReader.get(LazilyInitializedSideInputReader.java:50)
org.apache.beam.runners.dataflow.worker.repackaged.org.apache.beam.runners.core.SimpleDoFnRunner.sideInput(SimpleDoFnRunner.java:267)
org.apache.beam.runners.dataflow.worker.repackaged.org.apache.beam.runners.core.SimpleDoFnRunner.access$1200(SimpleDoFnRunner.java:84)
org.apache.beam.runners.dataflow.worker.repackaged.org.apache.beam.runners.core.SimpleDoFnRunner$DoFnProcessContext.sideInput(SimpleDoFnRunner.java:395)
org.apache.beam.sdk.transforms.Contextful$Fn$Context$ContextFromProcessContext.sideInput(Contextful.java:100)
baeminbo.DoubleRunSideinputPipeline.lambda$main$38d062d6$1(DoubleRunSideinputPipeline.java:34)
org.apache.beam.sdk.transforms.MapElements$1.processElement(MapElements.java:143)
Caused by:
java.lang.IllegalStateException: IsmSideInputReader only supports IsmReader
as a reader but was AvroByteReader.
org.apache.beam.vendor.guava.v26_0_jre.com.google.common.base.Preconditions.checkState(Preconditions.java:842)
org.apache.beam.runners.dataflow.worker.IsmSideInputReader.createReadersFromSources(IsmSideInputReader.java:253)
org.apache.beam.runners.dataflow.worker.IsmSideInputReader.<init>(IsmSideInputReader.java:165)
org.apache.beam.runners.dataflow.worker.IsmSideInputReader.of(IsmSideInputReader.java:278)
org.apache.beam.runners.dataflow.worker.BatchModeExecutionContext.lambda$getSideInputReader$0(BatchModeExecutionContext.java:290)
org.apache.beam.vendor.guava.v26_0_jre.com.google.common.base.Suppliers$NonSerializableMemoizingSupplier.get(Suppliers.java:167)
org.apache.beam.runners.dataflow.worker.LazilyInitializedSideInputReader.get(LazilyInitializedSideInputReader.java:50)
org.apache.beam.runners.dataflow.worker.repackaged.org.apache.beam.runners.core.SimpleDoFnRunner.sideInput(SimpleDoFnRunner.java:267)
org.apache.beam.runners.dataflow.worker.repackaged.org.apache.beam.runners.core.SimpleDoFnRunner.access$1200(SimpleDoFnRunner.java:84)
org.apache.beam.runners.dataflow.worker.repackaged.org.apache.beam.runners.core.SimpleDoFnRunner$DoFnProcessContext.sideInput(SimpleDoFnRunner.java:395)
org.apache.beam.sdk.transforms.Contextful$Fn$Context$ContextFromProcessContext.sideInput(Contextful.java:100)
baeminbo.DoubleRunSideinputPipeline.lambda$main$38d062d6$1(DoubleRunSideinputPipeline.java:34)
org.apache.beam.sdk.transforms.MapElements$1.processElement(MapElements.java:143)
org.apache.beam.sdk.transforms.MapElements$1$DoFnInvoker.invokeProcessElement(Unknown
Source)
org.apache.beam.runners.dataflow.worker.repackaged.org.apache.beam.runners.core.SimpleDoFnRunner.invokeProcessElement(SimpleDoFnRunner.java:232)
org.apache.beam.runners.dataflow.worker.repackaged.org.apache.beam.runners.core.SimpleDoFnRunner.processElement(SimpleDoFnRunner.java:188)
org.apache.beam.runners.dataflow.worker.SimpleParDoFn.processElement(SimpleParDoFn.java:339)
org.apache.beam.runners.dataflow.worker.util.common.worker.ParDoOperation.process(ParDoOperation.java:44)
org.apache.beam.runners.dataflow.worker.util.common.worker.OutputReceiver.process(OutputReceiver.java:49)
org.apache.beam.runners.dataflow.worker.util.common.worker.ReadOperation.runReadLoop(ReadOperation.java:212)
org.apache.beam.runners.dataflow.worker.util.common.worker.ReadOperation.start(ReadOperation.java:163)
org.apache.beam.runners.dataflow.worker.util.common.worker.MapTaskExecutor.execute(MapTaskExecutor.java:92)
org.apache.beam.runners.dataflow.worker.BatchDataflowWorker.executeWork(BatchDataflowWorker.java:420)
org.apache.beam.runners.dataflow.worker.BatchDataflowWorker.doWork(BatchDataflowWorker.java:389)
org.apache.beam.runners.dataflow.worker.BatchDataflowWorker.getAndPerformWork(BatchDataflowWorker.java:314)
org.apache.beam.runners.dataflow.worker.DataflowBatchWorkerHarness$WorkerThread.doWork(DataflowBatchWorkerHarness.java:140)
org.apache.beam.runners.dataflow.worker.DataflowBatchWorkerHarness$WorkerThread.call(DataflowBatchWorkerHarness.java:120)
org.apache.beam.runners.dataflow.worker.DataflowBatchWorkerHarness$WorkerThread.call(DataflowBatchWorkerHarness.java:107)
java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264)
java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1128)
java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:628)
java.base/java.lang.Thread.run(Thread.java:834)
```
You can reproduce this issue with [this sample
pipeline](https://github.com/baeminbo/dataflow-pipelines/tree/master/double-run-sideinput/)
Imported from Jira
[BEAM-12618](https://issues.apache.org/jira/browse/BEAM-12618). Original Jira
may contain additional context.
Reported by: baeminbo.
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