[Bug] std::system_error thrown during/after client->subscribe(...) when using configuration setUnAckedMessagesTimeoutMs. #358

["Tolfree, Jack" <Ja...@softwareag.com.INVALID>]

Hello,

I have filed the following issue which is an unexpected and unhandled exception that terminates our application, full details in the issue.
From looking at the code it appears the likely location for the exception is the std::recursive_mutex.
It is not clear to us why this exception would occur and any insight into avoiding this would be greatly appreciated.
I have filed the issue already as I do believe there is room for improvement around the handling of the exception even if the exception could have been avoided.

[Bug] std::system_error thrown during/after client->subscribe(...) when using configuration setUnAckedMessagesTimeoutMs. * Issue #358 * apache/pulsar-client-cpp (github.com)<https://github.com/apache/pulsar-client-cpp/issues/358>

We will try a different approach that does not use 'setUnAckedMessagesTimeotuMs', but it would be great to get this issue resolved, so that we can use this configuration.

Thanks in advance for your assistance.

Best regards,
Jack Tolfree
Lead Software Engineer
Jack.Tolfree@softwareag.com<ma...@softwareag.com>

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