Re: [I] [Bug] Acknowledgements lost on bookies and brokers restart resulting in messages not being delivered [pulsar]

["dominikkulik (via GitHub)" <gi...@apache.org>]

dominikkulik commented on issue #22709:
URL: https://github.com/apache/pulsar/issues/22709#issuecomment-2425904147

   Hi @lhotari 
   
   Some time ago we proceeded to create an application that will allow us to reproduce this error. However, it turned out that we are not able to do this. 
   
   After thorough analysis, we determined that the problem was in our service. Our deduplication mechanism was not properly implemented, which led to a situation that messages which should not have been acked, were acked after restarting our service. **The problem was in our cache implementation**. 
   
   Multiple attempts to restart bookies and brokers by themselves further confirmed that **no message was lost**.
   
   Thank you for your commitment and help. Ticket can be closed.


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