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Alexandre Vermeerbergen commented on STORM-3032: ------------------------------------------------ Hello, We are getting the same exception with Storm 1.2.3, using Kafka client at version 2.0.1, against Kafka Brokers at version 2.1.1. Since this is a NullPointerException that seems to be related to some statistics computation, isn't there a way to catch it so as to limit noise in Storm logs, unless that hint about a severe issue and thus some guidance to understand the issue & recommendations to solve it would be welcomed ? Kind regards, Alexandre Vermeerbergen > NullPointerException in KafkaSpout emitOrRetryTuple > --------------------------------------------------- > > Key: STORM-3032 > URL: https://issues.apache.org/jira/browse/STORM-3032 > Project: Apache Storm > Issue Type: Bug > Components: storm-core > Affects Versions: 1.2.1 > Environment: Linux > Reporter: Ajeesh B > Priority: Major > > {code:java} > java.lang.NullPointerException: null > at clojure.lang.Numbers.ops(Numbers.java:1013) ~[clojure-1.7.0.jar:?] > at clojure.lang.Numbers.multiply(Numbers.java:148) ~[clojure-1.7.0.jar:?] > at org.apache.storm.stats$transferred_tuples_BANG_.invoke(stats.clj:131) > ~[storm-core-1.2.1.jar:1.2.1] > at org.apache.storm.daemon.task$mk_tasks_fn$fn__4656.invoke(task.clj:167) > ~[storm-core-1.2.1.jar:1.2.1] > at org.apache.storm.daemon.task$send_unanchored.invoke(task.clj:119) > ~[storm-core-1.2.1.jar:1.2.1] > at > org.apache.storm.daemon.executor$fn__4975$fn__4990$send_spout_msg__4996.invoke(executor.clj:594) > ~[storm-core-1.2.1.jar:1.2.1] > at > org.apache.storm.daemon.executor$fn__4975$fn$reify__5006.emit(executor.clj:618) > ~[storm-core-1.2.1.jar:1.2.1] > at > org.apache.storm.spout.SpoutOutputCollector.emit(SpoutOutputCollector.java:50) > ~[storm-core-1.2.1.jar:1.2.1] > at > org.apache.storm.kafka.spout.KafkaSpout.emitOrRetryTuple(KafkaSpout.java:496) > ~[stormjar.jar:?] > at > org.apache.storm.kafka.spout.KafkaSpout.emitIfWaitingNotEmitted(KafkaSpout.java:440) > ~[stormjar.jar:?] > at org.apache.storm.kafka.spout.KafkaSpout.nextTuple(KafkaSpout.java:308) > ~[stormjar.jar:?] > at > org.apache.storm.daemon.executor$fn__4975$fn__4990$fn__5021.invoke(executor.clj:654) > ~[storm-core-1.2.1.jar:1.2.1] > at org.apache.storm.util$async_loop$fn__557.invoke(util.clj:484) > [storm-core-1.2.1.jar:1.2.1] > at clojure.lang.AFn.run(AFn.java:22) [clojure-1.7.0.jar:?] > at java.lang.Thread.run(Thread.java:785) [?:?] > {code} > Error in KafkaSpout emitOrRetry method -- This message was sent by Atlassian Jira (v8.3.4#803005)