Hi, I have installed the new version of HCP recently. I can see that the following error has appeared in Storm UI at Kafka spout section related to Parser topologies:
org.apache.kafka.clients.consumer.CommitFailedException: Commit cannot be completed since the group has already rebalanced and assigned the partitions to another member. This means that the time between subsequent calls to poll() was longer than the configured session.timeout.ms, which typically implies that the poll loop is spending too much time message processing. You can address this either by increasing the session timeout or by reducing the maximum size of batches returned in poll() with max.poll.records. at org.apache.kafka.clients.consumer.internals.ConsumerCoordinator$OffsetCommitResponseHandler.handle(ConsumerCoordinator.java:600) at org.apache.kafka.clients.consumer.internals.ConsumerCoordinator$OffsetCommitResponseHandler.handle(ConsumerCoordinator.java:541) at org.apache.kafka.clients.consumer.internals.AbstractCoordinator$CoordinatorResponseHandler.onSuccess(AbstractCoordinator.java:679) at org.apache.kafka.clients.consumer.internals.AbstractCoordinator$CoordinatorResponseHandler.onSuccess(AbstractCoordinator.java:658) at org.apache.kafka.clients.consumer.internals.RequestFuture$1.onSuccess(RequestFuture.java:167) at org.apache.kafka.clients.consumer.internals.RequestFuture.fireSuccess(RequestFuture.java:133) at org.apache.kafka.clients.consumer.internals.RequestFuture.complete(RequestFuture.java:107) at org.apache.kafka.clients.consumer.internals.ConsumerNetworkClient$RequestFutureCompletionHandler.onComplete(ConsumerNetworkClient.java:426) at org.apache.kafka.clients.NetworkClient.poll(NetworkClient.java:278) at org.apache.kafka.clients.consumer.internals.ConsumerNetworkClient.clientPoll(ConsumerNetworkClient.java:360) at org.apache.kafka.clients.consumer.internals.ConsumerNetworkClient.poll(ConsumerNetworkClient.java:224) at org.apache.kafka.clients.consumer.internals.ConsumerNetworkClient.poll(ConsumerNetworkClient.java:192) at org.apache.kafka.clients.consumer.internals.ConsumerNetworkClient.poll(ConsumerNetworkClient.java:163) at org.apache.kafka.clients.consumer.internals.ConsumerCoordinator.commitOffsetsSync(ConsumerCoordinator.java:426) at org.apache.kafka.clients.consumer.KafkaConsumer.commitSync(KafkaConsumer.java:1059) at org.apache.storm.kafka.spout.KafkaSpout.commitOffsetsForAckedTuples(KafkaSpout.java:302) at org.apache.storm.kafka.spout.KafkaSpout.nextTuple(KafkaSpout.java:204) at org.apache.storm.daemon.executor$fn__6505$fn__6520$fn__6551.invoke(executor.clj:651) at org.apache.storm.util$async_loop$fn__554.invoke(util.clj:484) at clojure.lang.AFn.run(AFn.java:22) at java.lang.Thread.run(Thread.java:748) This error has affected the Parsers throughput significantly! I have tried to increase the session timeout, but It didn't affect my situation. I would be grateful if you can help me to find the source of this issue. Please be advised that I haven't had this issue with the previous version of Metron (0.3.1). Regards, Ali
