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From "Jakub Scholz (JIRA)" <j...@apache.org>
Subject [jira] [Created] (KAFKA-8053) kafka-topics.sh gives confusing error message when the topic doesn't exist
Date Wed, 06 Mar 2019 16:16:00 GMT
Jakub Scholz created KAFKA-8053:
-----------------------------------

             Summary: kafka-topics.sh gives confusing error message when the topic doesn't
exist
                 Key: KAFKA-8053
                 URL: https://issues.apache.org/jira/browse/KAFKA-8053
             Project: Kafka
          Issue Type: Bug
            Reporter: Jakub Scholz


The kafka-topics.sh utility gives a confusing message when the topic it is called with doesn't
exist or when no topics exist at all:

{code}
bin/kafka-topics.sh --zookeeper localhost:2181 --describe --topic xxx
Error while executing topic command : Topics in [] does not exist
[2019-03-06 13:26:33,982] ERROR java.lang.IllegalArgumentException: Topics in [] does not
exist
at kafka.admin.TopicCommand$.kafka$admin$TopicCommand$$ensureTopicExists(TopicCommand.scala:416)
at kafka.admin.TopicCommand$ZookeeperTopicService.describeTopic(TopicCommand.scala:332)
at kafka.admin.TopicCommand$.main(TopicCommand.scala:66)
at kafka.admin.TopicCommand.main(TopicCommand.scala)
(kafka.admin.TopicCommand$)
{code}

It tries to list the topics, but because list of topics is always empty, it always prints
just `[]`. The error message should be more useful and instead list the topic passed by the
user as the parameter or not try to list anything at all.

 

 

 



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