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https://issues.apache.org/jira/browse/KAFKA-313?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14212527#comment-14212527
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Joel Koshy commented on KAFKA-313:
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I'm not sure if there is a strong need for this. In Linux you can use watch to
repeat the command:
watch -n 10 ./bin/kafka-consumer-offset-checker.sh --zookeeper <zk> --topic
<topic> --group <groupid> 2> /dev/null
Having an in-built loop does save the expense of spinning up a whole VM so it
does not hurt to have it I guess.
> Add JSON output and looping options to ConsumerOffsetChecker
> ------------------------------------------------------------
>
> Key: KAFKA-313
> URL: https://issues.apache.org/jira/browse/KAFKA-313
> Project: Kafka
> Issue Type: Improvement
> Reporter: Dave DeMaagd
> Priority: Minor
> Labels: newbie, patch
> Fix For: 0.8.3
>
> Attachments: KAFKA-313-2012032200.diff
>
>
> Adds:
> * '--loop N' - causes the program to loop forever, sleeping for up to N
> seconds between loops (loop time minus collection time, unless that's less
> than 0, at which point it will just run again immediately)
> * '--asjson' - display as a JSON string instead of the more human readable
> output format.
> Neither of the above depend on each other (you can loop in the human
> readable output, or do a single shot execution with JSON output). Existing
> behavior/output maintained if neither of the above are used. Diff Attached.
> Impacted files:
> core/src/main/scala/kafka/tools/ConsumerOffsetChecker.scala
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