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https://issues.apache.org/jira/browse/STORM-3032?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16935404#comment-16935404
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Stig Rohde Døssing commented on STORM-3032:
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This does not seem to be an issue as of 2.x. Could you try upgrading to that?
> 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
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