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From "Vahid Hashemian (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (KAFKA-3111) java.lang.ArithmeticException: / by zero in ConsumerPerformance
Date Tue, 31 May 2016 20:18:12 GMT

    [ https://issues.apache.org/jira/browse/KAFKA-3111?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15308547#comment-15308547
] 

Vahid Hashemian commented on KAFKA-3111:
----------------------------------------

[~junrao] Could you please take a look at the PR for this JIRA if you still think the JIRA
is worth a fix? After running some tests I believe the fix provided still improves the consumer
performance test output. Thanks for your feedback in advance.

> java.lang.ArithmeticException: / by zero in ConsumerPerformance
> ---------------------------------------------------------------
>
>                 Key: KAFKA-3111
>                 URL: https://issues.apache.org/jira/browse/KAFKA-3111
>             Project: Kafka
>          Issue Type: Bug
>          Components: core
>    Affects Versions: 0.9.0.0
>            Reporter: Jun Rao
>            Assignee: Vahid Hashemian
>              Labels: newbie
>
> Saw the following error. If there are lots of unconsumed messages, between two iterations
of the consumption, the timestamp may not have changed.
> kafka-consumer-perf-test --zookeeper localhost:2181 --topic test --group test-group --threads
1 --show-detailed-stats --reporting-interval 5000
> 2016-01-13 09:12:43:905, 0, 1048576, 35.2856, 238.4186, 370000, 2500000.0000
> 2016-01-13 09:12:43:916, 0, 1048576, 35.7624, 47.6837, 375000, 500000.0000
> java.lang.ArithmeticException: / by zero
>         at kafka.tools.ConsumerPerformance$ConsumerPerfThread.printMessage(ConsumerPerformance.scala:189)
>         at kafka.tools.ConsumerPerformance$ConsumerPerfThread.run(ConsumerPerformance.scala:164)
> 2016-01-13 09:12:43:918, 0, 1048576, 36.2393, 0.7117, 380000, 7000.0000



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