Pasting the error inline:
ERROR:root:severity: ERROR
timestamp {
seconds: 1591405163
nanos: 815000000
}
message: "Client failed to dequeue and process the value"
trace: "org.apache.beam.sdk.util.UserCodeException:
java.lang.NoClassDefFoundError:
org/springframework/expression/EvaluationContext\n\tat
org.apache.beam.sdk.util.UserCodeException.wrap(UserCodeException.java:36)\n\tat
org.apache.beam.sdk.io.Read$UnboundedSourceAsSDFWrapperFn$DoFnInvoker.invokeGetSize(Unknown
Source)\n\tat
org.apache.beam.fn.harness.FnApiDoFnRunner$2.outputWithTimestamp(FnApiDoFnRunner.java:497)\n\tat
org.apache.beam.fn.harness.FnApiDoFnRunner$ProcessBundleContext.output(FnApiDoFnRunner.java:1335)\n\tat
org.apache.beam.sdk.transforms.DoFnOutputReceivers$WindowedContextOutputReceiver.output(DoFnOutputReceivers.java:75)\n\tat
org.apache.beam.sdk.io.Read$UnboundedSourceAsSDFWrapperFn.splitRestriction(Read.java:504)\n\tat
org.apache.beam.sdk.io.Read$UnboundedSourceAsSDFWrapperFn$DoFnInvoker.invokeSplitRestriction(Unknown
Source)\n\tat
org.apache.beam.fn.harness.FnApiDoFnRunner.processElementForSplitRestriction(FnApiDoFnRunner.java:715)\n\tat
org.apache.beam.fn.harness.data.PCollectionConsumerRegistry$MetricTrackingFnDataReceiver.accept(PCollectionConsumerRegistry.java:216)\n\tat
org.apache.beam.fn.harness.data.PCollectionConsumerRegistry$MetricTrackingFnDataReceiver.accept(PCollectionConsumerRegistry.java:179)\n\tat
org.apache.beam.fn.harness.FnApiDoFnRunner.outputTo(FnApiDoFnRunner.java:874)\n\tat
org.apache.beam.fn.harness.FnApiDoFnRunner.processElementForPairWithRestriction(FnApiDoFnRunner.java:688)\n\tat
org.apache.beam.fn.harness.data.PCollectionConsumerRegistry$MetricTrackingFnDataReceiver.accept(PCollectionConsumerRegistry.java:216)\n\tat
org.apache.beam.fn.harness.data.PCollectionConsumerRegistry$MetricTrackingFnDataReceiver.accept(PCollectionConsumerRegistry.java:179)\n\tat
org.apache.beam.fn.harness.FnApiDoFnRunner.outputTo(FnApiDoFnRunner.java:874)\n\tat
org.apache.beam.fn.harness.FnApiDoFnRunner.access$600(FnApiDoFnRunner.java:121)\n\tat
org.apache.beam.fn.harness.FnApiDoFnRunner$ProcessBundleContext.outputWithTimestamp(FnApiDoFnRunner.java:1340)\n\tat
org.apache.beam.fn.harness.FnApiDoFnRunner$ProcessBundleContext.output(FnApiDoFnRunner.java:1335)\n\tat
org.apache.beam.sdk.transforms.DoFnOutputReceivers$WindowedContextOutputReceiver.output(DoFnOutputReceivers.java:75)\n\tat
org.apache.beam.sdk.transforms.MapElements$1.processElement(MapElements.java:139)\n\tat
org.apache.beam.sdk.transforms.MapElements$1$DoFnInvoker.invokeProcessElement(Unknown
Source)\n\tat
org.apache.beam.fn.harness.FnApiDoFnRunner.processElementForParDo(FnApiDoFnRunner.java:672)\n\tat
org.apache.beam.fn.harness.data.PCollectionConsumerRegistry$MetricTrackingFnDataReceiver.accept(PCollectionConsumerRegistry.java:216)\n\tat
org.apache.beam.fn.harness.data.PCollectionConsumerRegistry$MetricTrackingFnDataReceiver.accept(PCollectionConsumerRegistry.java:179)\n\tat
org.apache.beam.fn.harness.BeamFnDataReadRunner.forwardElementToConsumer(BeamFnDataReadRunner.java:177)\n\tat
org.apache.beam.fn.harness.data.QueueingBeamFnDataClient.drainAndBlock(QueueingBeamFnDataClient.java:106)\n\tat
org.apache.beam.fn.harness.control.ProcessBundleHandler.processBundle(ProcessBundleHandler.java:294)\n\tat
org.apache.beam.fn.harness.control.BeamFnControlClient.delegateOnInstructionRequestType(BeamFnControlClient.java:173)\n\tat
org.apache.beam.fn.harness.control.BeamFnControlClient.lambda$processInstructionRequests$0(BeamFnControlClient.java:157)\n\tat
java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)\n\tat
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)\n\tat
java.lang.Thread.run(Thread.java:748)\nCaused by:
java.lang.NoClassDefFoundError:
org/springframework/expression/EvaluationContext\n\tat
org.apache.beam.sdk.io.kafka.KafkaUnboundedReader.<init>(KafkaUnboundedReader.java:478)\n\tat
org.apache.beam.sdk.io.kafka.KafkaUnboundedSource.createReader(KafkaUnboundedSource.java:121)\n\tat
org.apache.beam.sdk.io.kafka.KafkaUnboundedSource.createReader(KafkaUnboundedSource.java:43)\n\tat
org.apache.beam.sdk.io.Read$UnboundedSourceAsSDFWrapperFn.getSize(Read.java:465)\nCaused
by: java.lang.ClassNotFoundException:
org.springframework.expression.EvaluationContext\n\tat
java.net.URLClassLoader.findClass(URLClassLoader.java:382)\n\tat
java.lang.ClassLoader.loadClass(ClassLoader.java:419)\n\tat
sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:352)\n\tat
java.lang.ClassLoader.loadClass(ClassLoader.java:352)\n\tat
org.apache.beam.sdk.io.kafka.KafkaUnboundedReader.<init>(KafkaUnboundedReader.java:478)\n\tat
org.apache.beam.sdk.io.kafka.KafkaUnboundedSource.createReader(KafkaUnboundedSource.java:121)\n\tat
org.apache.beam.sdk.io.kafka.KafkaUnboundedSource.createReader(KafkaUnboundedSource.java:43)\n\tat
org.apache.beam.sdk.io.Read$UnboundedSourceAsSDFWrapperFn.getSize(Read.java:465)\n\tat
org.apache.beam.sdk.io.Read$UnboundedSourceAsSDFWrapperFn$DoFnInvoker.invokeGetSize(Unknown
Source)\n\tat
org.apache.beam.fn.harness.FnApiDoFnRunner$2.outputWithTimestamp(FnApiDoFnRunner.java:497)\n\tat
org.apache.beam.fn.harness.FnApiDoFnRunner$ProcessBundleContext.output(FnApiDoFnRunner.java:1335)\n\tat
org.apache.beam.sdk.transforms.DoFnOutputReceivers$WindowedContextOutputReceiver.output(DoFnOutputReceivers.java:75)\n\tat
org.apache.beam.sdk.io.Read$UnboundedSourceAsSDFWrapperFn.splitRestriction(Read.java:504)\n\tat
org.apache.beam.sdk.io.Read$UnboundedSourceAsSDFWrapperFn$DoFnInvoker.invokeSplitRestriction(Unknown
Source)\n\tat
org.apache.beam.fn.harness.FnApiDoFnRunner.processElementForSplitRestriction(FnApiDoFnRunner.java:715)\n\tat
org.apache.beam.fn.harness.data.PCollectionConsumerRegistry$MetricTrackingFnDataReceiver.accept(PCollectionConsumerRegistry.java:216)\n\tat
org.apache.beam.fn.harness.data.PCollectionConsumerRegistry$MetricTrackingFnDataReceiver.accept(PCollectionConsumerRegistry.java:179)\n\tat
org.apache.beam.fn.harness.FnApiDoFnRunner.outputTo(FnApiDoFnRunner.java:874)\n\tat
org.apache.beam.fn.harness.FnApiDoFnRunner.processElementForPairWithRestriction(FnApiDoFnRunner.java:688)\n\tat
org.apache.beam.fn.harness.data.PCollectionConsumerRegistry$MetricTrackingFnDataReceiver.accept(PCollectionConsumerRegistry.java:216)\n\tat
org.apache.beam.fn.harness.data.PCollectionConsumerRegistry$MetricTrackingFnDataReceiver.accept(PCollectionConsumerRegistry.java:179)\n\tat
org.apache.beam.fn.harness.FnApiDoFnRunner.outputTo(FnApiDoFnRunner.java:874)\n\tat
org.apache.beam.fn.harness.FnApiDoFnRunner.access$600(FnApiDoFnRunner.java:121)\n\tat
org.apache.beam.fn.harness.FnApiDoFnRunner$ProcessBundleContext.outputWithTimestamp(FnApiDoFnRunner.java:1340)\n\tat
org.apache.beam.fn.harness.FnApiDoFnRunner$ProcessBundleContext.output(FnApiDoFnRunner.java:1335)\n\tat
org.apache.beam.sdk.transforms.DoFnOutputReceivers$WindowedContextOutputReceiver.output(DoFnOutputReceivers.java:75)\n\tat
org.apache.beam.sdk.transforms.MapElements$1.processElement(MapElements.java:139)\n\tat
org.apache.beam.sdk.transforms.MapElements$1$DoFnInvoker.invokeProcessElement(Unknown
Source)\n\tat
org.apache.beam.fn.harness.FnApiDoFnRunner.processElementForParDo(FnApiDoFnRunner.java:672)\n\tat
org.apache.beam.fn.harness.data.PCollectionConsumerRegistry$MetricTrackingFnDataReceiver.accept(PCollectionConsumerRegistry.java:216)\n\tat
org.apache.beam.fn.harness.data.PCollectionConsumerRegistry$MetricTrackingFnDataReceiver.accept(PCollectionConsumerRegistry.java:179)\n\tat
org.apache.beam.fn.harness.BeamFnDataReadRunner.forwardElementToConsumer(BeamFnDataReadRunner.java:177)\n\tat
org.apache.beam.fn.harness.data.QueueingBeamFnDataClient.drainAndBlock(QueueingBeamFnDataClient.java:106)\n\tat
org.apache.beam.fn.harness.control.ProcessBundleHandler.processBundle(ProcessBundleHandler.java:294)\n\tat
org.apache.beam.fn.harness.control.BeamFnControlClient.delegateOnInstructionRequestType(BeamFnControlClient.java:173)\n\tat
org.apache.beam.fn.harness.control.BeamFnControlClient.lambda$processInstructionRequests$0(BeamFnControlClient.java:157)\n\tat
java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)\n\tat
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)\n\tat
java.lang.Thread.run(Thread.java:748)\n"
log_location: "org.apache.beam.fn.harness.data.QueueingBeamFnDataClient"
On Fri, Jun 5, 2020 at 3:57 PM Piotr Filipiuk <piotr.filip...@gmail.com>
wrote:
> Thank you for the suggestions.
>
> Neither Kafka nor Flink run in a docker container, they all run locally.
> Furthermore, the same issue happens for Direct Runner. That being said
> changing from localhost:$PORT to $IP_ADDR:$PORT resulted in a different
> error, see attached.
>
> On Fri, Jun 5, 2020 at 3:47 PM Venkat Muthuswamy <venkat_pack...@yahoo.com>
> wrote:
>
>> Is Kafka itself running inside another container? If so inspect that
>> container and see if it has a network alias and add that alias to your
>> /etc/hosts file and map it to 127.0.0.1.
>>
>>
>>
>> *From:* Chamikara Jayalath <chamik...@google.com>
>> *Sent:* Friday, June 5, 2020 2:58 PM
>> *To:* Luke Cwik <lc...@google.com>
>> *Cc:* user <user@beam.apache.org>; dev <d...@beam.apache.org>; Heejong
>> Lee <heej...@google.com>
>> *Subject:* Re: Python SDK ReadFromKafka: Timeout expired while fetching
>> topic metadata
>>
>>
>>
>> Is it possible that "'localhost:9092'" is not available from the Docker
>> environment where the Flink step is executed from ? Can you try specifying
>> the actual IP address of the node running the Kafka broker ?
>>
>>
>>
>> On Fri, Jun 5, 2020 at 2:53 PM Luke Cwik <lc...@google.com> wrote:
>>
>> +dev <d...@beam.apache.org> +Chamikara Jayalath <chamik...@google.com>
>> +Heejong
>> Lee <heej...@google.com>
>>
>>
>>
>> On Fri, Jun 5, 2020 at 8:29 AM Piotr Filipiuk <piotr.filip...@gmail.com>
>> wrote:
>>
>> I am unable to read from Kafka and getting the following warnings &
>> errors when calling kafka.ReadFromKafka() (Python SDK):
>>
>>
>>
>> WARNING:root:severity: WARN
>> timestamp {
>> seconds: 1591370012
>> nanos: 523000000
>> }
>> message: "[Consumer clientId=consumer-2, groupId=] Connection to node -1
>> could not be established. Broker may not be available."
>> log_location: "org.apache.kafka.clients.NetworkClient"
>> thread: "18"
>>
>>
>>
>> Finally the pipeline fails with:
>>
>>
>>
>> RuntimeError: org.apache.beam.sdk.util.UserCodeException:
>> java.lang.RuntimeException:
>> org.apache.kafka.common.errors.TimeoutException: Timeout expired while
>> fetching topic metadata
>>
>>
>>
>> See more complete log attached.
>>
>>
>>
>> The relevant code snippet:
>>
>>
>>
>> consumer_conf = {"bootstrap.servers": 'localhost:9092'}
>>
>> ...
>>
>> kafka.ReadFromKafka(
>> consumer_config=consumer_conf,
>> topics=[args.topic],
>>
>> )
>>
>> ...
>>
>>
>>
>> Also see full python script attached.
>>
>>
>>
>> I am using Beam Version: 2.21.0 and DirectRunner. For Flink Runner I am
>> also not able to read from topic.
>>
>>
>>
>> I am using kafka 2.5.0 and started the broker by following
>> https://kafka.apache.org/quickstart - using default
>> config/server.properties.
>>
>>
>>
>> Everything runs locally, and I verified that I can publish&consume from
>> that topic using confluent_kafka library.
>>
>>
>>
>> --
>>
>> Best regards,
>> Piotr
>>
>>
>
> --
> Best regards,
> Piotr
>
--
Best regards,
Piotr
