[FLINK-22953] Using Types.LIST(Types.STRING()) in datastream result in crash

• Type: Bug
• Status: Closed
• Priority: Critical
• Resolution: Duplicate
• Affects Version/s: 1.13.1
• Component/s: API / Python
• Labels: stale-critical

Environment

python==3.7.5

flink==1.13.1

• Assignee: Unassigned
• Reporter: awayne
• Created: 10/Jun/21 02:51
• Updated: 23/Jun/21 03:21
• Resolved: 23/Jun/21 03:21

Description

In our business, we need to deserialize JSON like this:

{
  ...,
  "texts": ["a", "b", "c"],
  ...
}

number of strings in list isn't fixed.

After define Row type using Types.LIST(Types.STRING()), job will crash:

  File "/home/ubuntu/pyflenv/lib/python3.7/site-packages/pyflink/datastream/stream_execution_environment.py", line 645, in execute  File "/home/ubuntu/pyflenv/lib/python3.7/site-packages/pyflink/datastream/stream_execution_environment.py", line 645, in execute    return JobExecutionResult(self._j_stream_execution_environment.execute(j_stream_graph))  File "/home/ubuntu/pyflenv/lib/python3.7/site-packages/py4j/java_gateway.py", line 1286, in __call__    answer, self.gateway_client, self.target_id, self.name)  File "/home/ubuntu/pyflenv/lib/python3.7/site-packages/pyflink/util/exceptions.py", line 146, in deco    return f(*a, **kw)  File "/home/ubuntu/pyflenv/lib/python3.7/site-packages/py4j/protocol.py", line 328, in get_return_value    format(target_id, ".", name), value)py4j.protocol.Py4JJavaError: An error occurred while calling o31.execute.: org.apache.flink.runtime.client.JobExecutionException: Job execution failed. at org.apache.flink.runtime.jobmaster.JobResult.toJobExecutionResult(JobResult.java:144) at org.apache.flink.runtime.minicluster.MiniClusterJobClient.lambda$getJobExecutionResult$3(MiniClusterJobClient.java:137) at java.base/java.util.concurrent.CompletableFuture$UniApply.tryFire(CompletableFuture.java:642) at java.base/java.util.concurrent.CompletableFuture.postComplete(CompletableFuture.java:506) at java.base/java.util.concurrent.CompletableFuture.complete(CompletableFuture.java:2073) at org.apache.flink.runtime.rpc.akka.AkkaInvocationHandler.lambda$invokeRpc$0(AkkaInvocationHandler.java:237) at java.base/java.util.concurrent.CompletableFuture.uniWhenComplete(CompletableFuture.java:859) at java.base/java.util.concurrent.CompletableFuture$UniWhenComplete.tryFire(CompletableFuture.java:837) at java.base/java.util.concurrent.CompletableFuture.postComplete(CompletableFuture.java:506) at java.base/java.util.concurrent.CompletableFuture.complete(CompletableFuture.java:2073) at org.apache.flink.runtime.concurrent.FutureUtils$1.onComplete(FutureUtils.java:1081) at akka.dispatch.OnComplete.internal(Future.scala:264) at akka.dispatch.OnComplete.internal(Future.scala:261) at akka.dispatch.japi$CallbackBridge.apply(Future.scala:191) at akka.dispatch.japi$CallbackBridge.apply(Future.scala:188) at scala.concurrent.impl.CallbackRunnable.run(Promise.scala:36) at org.apache.flink.runtime.concurrent.Executors$DirectExecutionContext.execute(Executors.java:73) at scala.concurrent.impl.CallbackRunnable.executeWithValue(Promise.scala:44) at scala.concurrent.impl.Promise$DefaultPromise.tryComplete(Promise.scala:252) at akka.pattern.PromiseActorRef.$bang(AskSupport.scala:572) at akka.pattern.PipeToSupport$PipeableFuture$$anonfun$pipeTo$1.applyOrElse(PipeToSupport.scala:22) at akka.pattern.PipeToSupport$PipeableFuture$$anonfun$pipeTo$1.applyOrElse(PipeToSupport.scala:21) at scala.concurrent.Future$$anonfun$andThen$1.apply(Future.scala:436) at scala.concurrent.Future$$anonfun$andThen$1.apply(Future.scala:435) at scala.concurrent.impl.CallbackRunnable.run(Promise.scala:36) at akka.dispatch.BatchingExecutor$AbstractBatch.processBatch(BatchingExecutor.scala:55) at akka.dispatch.BatchingExecutor$BlockableBatch$$anonfun$run$1.apply$mcV$sp(BatchingExecutor.scala:91) at akka.dispatch.BatchingExecutor$BlockableBatch$$anonfun$run$1.apply(BatchingExecutor.scala:91) at akka.dispatch.BatchingExecutor$BlockableBatch$$anonfun$run$1.apply(BatchingExecutor.scala:91) at scala.concurrent.BlockContext$.withBlockContext(BlockContext.scala:72) at akka.dispatch.BatchingExecutor$BlockableBatch.run(BatchingExecutor.scala:90) at akka.dispatch.TaskInvocation.run(AbstractDispatcher.scala:40) at akka.dispatch.ForkJoinExecutorConfigurator$AkkaForkJoinTask.exec(ForkJoinExecutorConfigurator.scala:44) at akka.dispatch.forkjoin.ForkJoinTask.doExec(ForkJoinTask.java:260) at akka.dispatch.forkjoin.ForkJoinPool$WorkQueue.runTask(ForkJoinPool.java:1339) at akka.dispatch.forkjoin.ForkJoinPool.runWorker(ForkJoinPool.java:1979) at akka.dispatch.forkjoin.ForkJoinWorkerThread.run(ForkJoinWorkerThread.java:107)

Issue Links

• duplicates: FLINK-23033 Support object array in Python DataStream API