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https://issues.apache.org/jira/browse/BEAM-2837?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17132345#comment-17132345
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Beam JIRA Bot commented on BEAM-2837:
-------------------------------------
This issue is assigned but has not received an update in 30 days so it has been
labeled "stale-assigned". If you are still working on the issue, please give an
update and remove the label. If you are no longer working on the issue, please
unassign so someone else may work on it. In 7 days the issue will be
automatically unassigned.
> Writing To Spanner From Google Cloud DataFlow - Failure
> -------------------------------------------------------
>
> Key: BEAM-2837
> URL: https://issues.apache.org/jira/browse/BEAM-2837
> Project: Beam
> Issue Type: Bug
> Components: runner-dataflow
> Affects Versions: 2.1.0, 2.4.0
> Environment: Google Cloud DataFlow
> Reporter: Al Yaros
> Assignee: Mairbek Khadikov
> Priority: P2
> Labels: stale-assigned
>
> Simple Java Program That reads from Pub\Sub and Writes to Spanner Fails with
> cryptic error message.
> Simple Program to Demonstrate the Error:
> [https://github.com/alyaros/ExamplePubSubToSpannerViaDataFlow]
> {code:java}
> *Caused by: org.apache.beam.sdk.util.UserCodeException:
> java.lang.NoClassDefFoundError: Could not initialize class
> com.google.cloud.spanner.spi.v1.SpannerErrorInterceptor
>
> org.apache.beam.sdk.util.UserCodeException.wrap(UserCodeException.java:36)
> org.apache.beam.sdk.io.
> gcp.spanner.SpannerWriteGroupFn$DoFnInvoker.invokeSetup(Unknown Source)
>
> com.google.cloud.dataflow.worker.DoFnInstanceManagers$ConcurrentQueueInstanceManager.deserializeCopy(DoFnInstanceManagers.java:66)
>
> com.google.cloud.dataflow.worker.DoFnInstanceManagers$ConcurrentQueueInstanceManager.peek(DoFnInstanceManagers.java:48)
>
> com.google.cloud.dataflow.worker.UserParDoFnFactory.create(UserParDoFnFactory.java:104)
>
> com.google.cloud.dataflow.worker.DefaultParDoFnFactory.create(DefaultParDoFnFactory.java:66)
>
> com.google.cloud.dataflow.worker.MapTaskExecutorFactory.createParDoOperation(MapTaskExecutorFactory.java:360)
>
> com.google.cloud.dataflow.worker.MapTaskExecutorFactory$3.typedApply(MapTaskExecutorFactory.java:271)
>
> com.google.cloud.dataflow.worker.MapTaskExecutorFactory$3.typedApply(MapTaskExecutorFactory.java:253)
>
> com.google.cloud.dataflow.worker.graph.Networks$TypeSafeNodeFunction.apply(Networks.java:55)
>
> com.google.cloud.dataflow.worker.graph.Networks$TypeSafeNodeFunction.apply(Networks.java:43)
>
> com.google.cloud.dataflow.worker.graph.Networks.replaceDirectedNetworkNodes(Networks.java:78)
>
> com.google.cloud.dataflow.worker.MapTaskExecutorFactory.create(MapTaskExecutorFactory.java:142)
>
> com.google.cloud.dataflow.worker.StreamingDataflowWorker.process(StreamingDataflowWorker.java:925)
>
> com.google.cloud.dataflow.worker.StreamingDataflowWorker.access$800(StreamingDataflowWorker.java:133)
>
> com.google.cloud.dataflow.worker.StreamingDataflowWorker$7.run(StreamingDataflowWorker.java:771)
>
> java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
>
> java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
> java.lang.Thread.run(Thread.java:745)*
> {code}
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