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Posted to commits@pulsar.apache.org by GitBox <gi...@apache.org> on 2020/06/23 11:44:03 UTC

[GitHub] [pulsar] ruthareshmpn commented on issue #7048: Shared consumers do not receive messages in C++ and acknowledged messages get redelivered

ruthareshmpn commented on issue #7048:
URL: https://github.com/apache/pulsar/issues/7048#issuecomment-648093136


   The exact same issue is happening to me at some random time the no messages were delivered to my program and suddenly receiving a message after an hour or some times 6 hours.
   
   After the consume got frozen, I debugged it with GDB and fount out the program is blocked in the mutex lock as shown the screenshot
   ![debug_lock](https://user-images.githubusercontent.com/17001280/85399505-8fb41900-b574-11ea-9b78-0c6d0f76ea0c.png)
   ![Screenshot from 2020-06-23 17-12-17](https://user-images.githubusercontent.com/17001280/85399625-bd00c700-b574-11ea-82dc-2baa2abdf5dd.png)
   
   After my debugging, I found out the following that for the shared subscription there was messages backlog because of consuming stopped.
   ![Screenshot from 2020-06-23 17-01-02](https://user-images.githubusercontent.com/17001280/85398855-7199e900-b573-11ea-88c2-7751084029c6.png)
   
   


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