Cannot ack a message from deduplicated queue about rabbitmq-message-deduplication HOT 9 CLOSED

Hello,

Did you try with a more recent version of RabbitMQ? 3.7.4 is quite old and the queue deduplication might suffer from some compatibility issue.

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Hi, I just tried 3.7.15 and got the same problem.

from rabbitmq-message-deduplication.

I tried both 3.7.4 and 3.7.15 versions and could not reproduce the issue you suffer from.

Could you please provide a reproducible example? The code you have been used to test the plugin should be good enough.

Also, which version of Erlang are you using?

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Ok, I will shortly.
I will have to rework some code as to not expose my employers secrets, then I will post a link to the github project here.
Thanks for looking into it so far.

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No need to do anything fancy, it could even be some bash scripting. Thank you for your help.

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This is most likely a duplicate of #33. As I can now reproduce it, there is no need to provide an example. Thanks!

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Yes! I can confirm that it works fine with Strings.
messageProperties.setHeader("x-deduplication-header", String.valueOf(n));
solved it for me.

FYI:
The problem is still there for nullable header values (ie using a property for the value of the header that is sometimes null), but for me that is not unreasonable.

Thank you very much for sorting this out and thank you for providing this very useful plugin!

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Release 0.4.1 now handles non-string headers including integers and null values.

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Closing the issue, please re-open if the problem persists.

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