eolivelli opened a new pull request #9860:
URL: https://github.com/apache/pulsar/pull/9860
### Motivation and Modifications
This patch adds two features to pulsar-client:
- ability to dump a summary of the messages that have been received
- ability to fail in case of a reception of a duplicate message
With this two feature it is easy to use pulsar-client to automate
consistency checks and check against data loss and message duplication errors.
You can use this feature in conjunction with `pulsar-perf produce -mk
autoIncrement` and send load to your pulsar cluster, then you can validate that
your are not losing messages and that you are not receiving the same message
twice.
### Documentation
- Does this pull request introduce a new feature? yes
- If yes, how is the feature documented? documented on the inline help
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