Juan, >From looking at the source code, I *think* the issue is that you've got a >record in the Kafka topic that has a null value. To be honest, I didn't realize that this was even possible, but Kafka's JavaDocs do imply that it is. I created a JIRA [1] to address this.
Thanks -Mark [1] https://issues.apache.org/jira/browse/NIFI-4330 On Aug 29, 2017, at 9:04 AM, Juan Pablo Gardella <[email protected]<mailto:[email protected]>> wrote: Sure: <image.png> On Tue, 29 Aug 2017 at 10:00 Pierre Villard <[email protected]<mailto:[email protected]>> wrote: Hi Juan, Could you provide your processor configuration? Thanks! 2017-08-29 14:41 GMT+02:00 Juan Pablo Gardella <[email protected]<mailto:[email protected]>>: Hi all, I was using ConsumerKafka_0_10 processor and yesterday I saw the following error, the gist <https://gist.githubusercontent.com/gardellajuanpablo/941a19dd11786cf1758f49ba0fdaeaf8/raw/506a3943c0492cef6f4ff9093475c8c04b35965a/gistfile1.txt> is here for the log. The issue prevents consume data. logs1/nifi-app_2017-08-28_16.0.log:2017-08-28 16:52:11,379 ERROR [Timer-Driven Process Thread-3] o.a.n.p.kafka.pubsub.ConsumeKafka_0_10 ConsumeKafka_0_10[id=8d493045-3a66-146a-9581-5b01d5575 186] Exception while processing data from kafka so will close the lease org.apache.nifi.processors.kafka.pubsub.ConsumerPool$SimpleConsumerLease@3c3de236 due to java.lang.NullPointerExceptio n: java.lang.NullPointerException logs1/nifi-app_2017-08-28_16.0.log-java.lang.NullPointerException: null logs1/nifi-app_2017-08-28_16.0.log- at org.apache.nifi.stream.io<http://org.apache.nifi.stream.io/>.ByteCountingOutputStream.write(ByteCountingOutputStream.java:44) logs1/nifi-app_2017-08-28_16.0.log- at org.apache.nifi.controller.repository.io<http://repository.io/>.FlowFileAccessOutputStream.write(FlowFileAccessOutputStream.java:78) logs1/nifi-app_2017-08-28_16.0.log- at org.apache.nifi.processors.kafka.pubsub.ConsumerLease.lambda$writeData$9(ConsumerLease.java:382) logs1/nifi-app_2017-08-28_16.0.log- at org.apache.nifi.controller.repository.StandardProcessSession.write(StandardProcessSession.java:2529) logs1/nifi-app_2017-08-28_16.0.log- at org.apache.nifi.processors.kafka.pubsub.ConsumerLease.writeData(ConsumerLease.java:381) logs1/nifi-app_2017-08-28_16.0.log- at org.apache.nifi.processors.kafka.pubsub.ConsumerLease.lambda$null$7(ConsumerLease.java:323) logs1/nifi-app_2017-08-28_16.0.log- at java.util.ArrayList$ArrayListSpliterator.forEachRemaining(ArrayList.java:1374) logs1/nifi-app_2017-08-28_16.0.log- at java.util.stream.ReferencePipeline$Head.forEach(ReferencePipeline.java:580) logs1/nifi-app_2017-08-28_16.0.log- at org.apache.nifi.processors.kafka.pubsub.ConsumerLease.lambda$processRecords$8(ConsumerLease.java:322) logs1/nifi-app_2017-08-28_16.0.log- at java.util.HashMap$KeySpliterator.forEachRemaining(HashMap.java:1548) logs1/nifi-app_2017-08-28_16.0.log- at java.util.stream.ReferencePipeline$Head.forEach(ReferencePipeline.java:580) logs1/nifi-app_2017-08-28_16.0.log- at org.apache.nifi.processors.kafka.pubsub.ConsumerLease.processRecords(ConsumerLease.java:307) logs1/nifi-app_2017-08-28_16.0.log- at org.apache.nifi.processors.kafka.pubsub.ConsumerLease.poll(ConsumerLease.java:168) logs1/nifi-app_2017-08-28_16.0.log- at org.apache.nifi.processors.kafka.pubsub.ConsumeKafka_0_10.onTrigger(ConsumeKafka_0_10.java:317) logs1/nifi-app_2017-08-28_16.0.log- at org.apache.nifi.processor.AbstractProcessor.onTrigger(AbstractProcessor.java:27) logs1/nifi-app_2017-08-28_16.0.log- at org.apache.nifi.controller.StandardProcessorNode.onTrigger(StandardProcessorNode.java:1120) logs1/nifi-app_2017-08-28_16.0.log- at org.apache.nifi.controller.tasks.ContinuallyRunProcessorTask.call(ContinuallyRunProcessorTask.java:147) logs1/nifi-app_2017-08-28_16.0.log- at org.apache.nifi.controller.tasks.ContinuallyRunProcessorTask.call(ContinuallyRunProcessorTask.java:47) logs1/nifi-app_2017-08-28_16.0.log- at org.apache.nifi.controller.scheduling.TimerDrivenSchedulingAgent$1.run(TimerDrivenSchedulingAgent.java:132) logs1/nifi-app_2017-08-28_16.0.log- at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511) logs1/nifi-app_2017-08-28_16.0.log- at java.util.concurrent.FutureTask.runAndReset(FutureTask.java:308) logs1/nifi-app_2017-08-28_16.0.log- at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$301(ScheduledThreadPoolExecutor.java:180) logs1/nifi-app_2017-08-28_16.0.log- at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:294) logs1/nifi-app_2017-08-28_16.0.log- at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142) logs1/nifi-app_2017-08-28_16.0.log- at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617) logs1/nifi-app_2017-08-28_16.0.log- at java.lang.Thread.run(Thread.java:745) Thanks
