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https://issues.apache.org/jira/browse/KAFKA-5327?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16356375#comment-16356375
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ASF GitHub Bot commented on KAFKA-5327:
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huxihx opened a new pull request #4546: KAFKA-5327: Console Consumer should
only poll for up to max messages
URL: https://github.com/apache/kafka/pull/4546
Add a check to ensure --max-messages, if set, must be set no smaller than
max.poll.records.
*More detailed description of your change,
if necessary. The PR title and PR message become
the squashed commit message, so use a separate
comment to ping reviewers.*
*Summary of testing strategy (including rationale)
for the feature or bug fix. Unit and/or integration
tests are expected for any behaviour change and
system tests should be considered for larger changes.*
### Committer Checklist (excluded from commit message)
- [ ] Verify design and implementation
- [ ] Verify test coverage and CI build status
- [ ] Verify documentation (including upgrade notes)
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> Console Consumer should only poll for up to max messages
> --------------------------------------------------------
>
> Key: KAFKA-5327
> URL: https://issues.apache.org/jira/browse/KAFKA-5327
> Project: Kafka
> Issue Type: Improvement
> Components: tools
> Reporter: Dustin Cote
> Assignee: huxihx
> Priority: Minor
> Fix For: 1.2.0
>
>
> The ConsoleConsumer has a --max-messages flag that can be used to limit the
> number of messages consumed. However, the number of records actually consumed
> is governed by max.poll.records. This means you see one message on the
> console, but your offset has moved forward a default of 500, which is kind of
> counterintuitive. It would be good to only commit offsets for messages we
> have printed to the console.
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