got a Storm 2.6.0 with Kafka Spout (setting 32 parallelismHint) and sometimes I'm getting:
Is this normal ? Error java.lang.RuntimeException: org.apache.kafka.common.KafkaException: Unexpected error in commit: The group id does not exist. at org.apache.storm.utils.Utils$1.run(Utils.java:413) ~[storm-client-2.6.0.jar:2.6.0] at java.base/java.lang.Thread.run(Thread.java:1583) [?:?] Caused by: org.apache.kafka.common.KafkaException: Unexpected error in commit: The group id does not exist. at org.apache.kafka.clients.consumer.internals.ConsumerCoordinator$OffsetCommitResponseHandler.handle(ConsumerCoordinator.java:1482) ~[stormjar.jar:?] at org.apache.kafka.clients.consumer.internals.ConsumerCoordinator$OffsetCommitResponseHandler.handle(ConsumerCoordinator.java:1376) ~[stormjar.jar:?] at org.apache.kafka.clients.consumer.internals.AbstractCoordinator$CoordinatorResponseHandler.onSuccess(AbstractCoordinator.java:1270) ~[stormjar.jar:?] at org.apache.kafka.clients.consumer.internals.AbstractCoordinator$CoordinatorResponseHandler.onSuccess(AbstractCoordinator.java:1245) ~[stormjar.jar:?] at org.apache.kafka.clients.consumer.internals.RequestFuture$1.onSuccess(RequestFuture.java:206) ~[stormjar.jar:?] at org.apache.kafka.clients.consumer.internals.RequestFuture.fireSuccess(RequestFuture.java:169) ~[stormjar.jar:?] at org.apache.kafka.clients.consumer.internals.RequestFuture.complete(RequestFuture.java:129) ~[stormjar.jar:?] at org.apache.kafka.clients.consumer.internals.ConsumerNetworkClient$RequestFutureCompletionHandler.fireCompletion(ConsumerNetworkClient.java:617) ~[stormjar.jar:?] at org.apache.kafka.clients.consumer.internals.ConsumerNetworkClient.firePendingCompletedRequests(ConsumerNetworkClient.java:427) ~[stormjar.jar:?] at org.apache.kafka.clients.consumer.internals.ConsumerNetworkClient.poll(ConsumerNetworkClient.java:312) ~[stormjar.jar:?] at org.apache.kafka.clients.consumer.internals.ConsumerNetworkClient.poll(ConsumerNetworkClient.java:230) ~[stormjar.jar:?] at org.apache.kafka.clients.consumer.internals.ConsumerNetworkClient.poll(ConsumerNetworkClient.java:214) ~[stormjar.jar:?] at org.apache.kafka.clients.consumer.internals.ConsumerCoordinator.commitOffsetsSync(ConsumerCoordinator.java:1189) ~[stormjar.jar:?] at org.apache.kafka.clients.consumer.KafkaConsumer.commitSync(KafkaConsumer.java:1450) ~[stormjar.jar:?] at org.apache.kafka.clients.consumer.KafkaConsumer.commitSync(KafkaConsumer.java:1397) ~[stormjar.jar:?] at org.apache.storm.kafka.spout.KafkaSpout.pollKafkaBroker(KafkaSpout.java:367) ~[stormjar.jar:?] at org.apache.storm.kafka.spout.KafkaSpout.nextTuple(KafkaSpout.java:287) ~[stormjar.jar:?] at org.apache.storm.executor.spout.SpoutExecutor$2.call(SpoutExecutor.java:187) ~[storm-client-2.6.0.jar:2.6.0] at org.apache.storm.executor.spout.SpoutExecutor$2.call(SpoutExecutor.java:153) ~[storm-client-2.6.0.jar:2.6.0] at org.apache.storm.utils.Utils$1.run(Utils.java:398) ~[storm-client-2.6.0.jar:2.6.0] ... 1 more