以下异常对任何人来说都很熟悉吗？上周完全相同的管道和数据工作但今天同样的异常失败了几次。我没有从堆栈跟踪中看到我的代码的任何足迹。想知道它可能与...有什么关系...例如，GCS读取配额？
而且，由于它在我的直接运行器上运行良好，对于这些类型的Dataflow异常，我如何在Dataflow上进行调试？
{
insertId: "7289985381136617647:828219:0:906922"
jsonPayload: {
exception: "java.io.IOException: Failed to advance reader of source: gs://fiona_dataflow/tmp/BigQueryExtractTemp/5c813875537d4c1a89b74a800bb37c50/000000000864.avro range [0, 808559590)
at com.google.cloud.dataflow.worker.WorkerCustomSources$BoundedReaderIterator.advance(WorkerCustomSources.java:605)
at com.google.cloud.dataflow.worker.util.common.worker.ReadOperation$SynchronizedReaderIterator.advance(ReadOperation.java:398)
at com.google.cloud.dataflow.worker.util.common.worker.ReadOperation.runReadLoop(ReadOperation.java:193)
at com.google.cloud.dataflow.worker.util.common.worker.ReadOperation.start(ReadOperation.java:158)
at com.google.cloud.dataflow.worker.util.common.worker.MapTaskExecutor.execute(MapTaskExecutor.java:75)
at com.google.cloud.dataflow.worker.BatchDataflowWorker.executeWork(BatchDataflowWorker.java:383)
at com.google.cloud.dataflow.worker.BatchDataflowWorker.doWork(BatchDataflowWorker.java:355)
at com.google.cloud.dataflow.worker.BatchDataflowWorker.getAndPerformWork(BatchDataflowWorker.java:286)
at com.google.cloud.dataflow.worker.DataflowBatchWorkerHarness$WorkerThread.doWork(DataflowBatchWorkerHarness.java:134)
at com.google.cloud.dataflow.worker.DataflowBatchWorkerHarness$WorkerThread.call(DataflowBatchWorkerHarness.java:114)
at com.google.cloud.dataflow.worker.DataflowBatchWorkerHarness$WorkerThread.call(DataflowBatchWorkerHarness.java:101)
at java.util.concurrent.FutureTask.run(FutureTask.java:266)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
at java.lang.Thread.run(Thread.java:745)
Caused by: java.lang.NullPointerException
at com.geotab.bigdata.streaming.mapserver.backfill.MapServerBatchBeamApplication.lambda$main$fd9fc9ef$1(MapServerBatchBeamApplication.java:82)
at org.apache.beam.sdk.io.gcp.bigquery.BigQuerySourceBase$1.apply(BigQuerySourceBase.java:211)
at org.apache.beam.sdk.io.gcp.bigquery.BigQuerySourceBase$1.apply(BigQuerySourceBase.java:205)
at org.apache.beam.sdk.io.AvroSource$AvroBlock.readNextRecord(AvroSource.java:579)
at org.apache.beam.sdk.io.BlockBasedSource$BlockBasedReader.readNextRecord(BlockBasedSource.java:223)
at org.apache.beam.sdk.io.FileBasedSource$FileBasedReader.advanceImpl(FileBasedSource.java:473)
at org.apache.beam.sdk.io.OffsetBasedSource$OffsetBasedReader.advance(OffsetBasedSource.java:267)
at com.google.cloud.dataflow.worker.WorkerCustomSources$BoundedReaderIterator.advance(WorkerCustomSources.java:602)
... 14 more
"
job: "2018-04-23_07_30_32-17662367668739576363"
logger: "com.google.cloud.dataflow.worker.WorkItemStatusClient"
message: "Uncaught exception occurred during work unit execution. This will be retried."
stage: "s19"
thread: "27"
work: "1213589185295287945"
worker: "mapserverbatchbeamapplica-04230730-s20x-harness-713d"