Hello,
We are upgrading our servers to Kamailio 4.2 and we see a lot of error messages "Failed to delete subscription from memory".
Scenario:
This happens every time there is a Notify Timeout (408) and Kamailio tries to delete the subscription.
Consequences:
I don't know whether the delete fails because the entry did never exist, was already deleted or because the comparison (to_tag, callid or from_tag) is incorrect. It would be nice to at least have some details in the log message.
I have not noticed any consequences to general functionality.
I suspect the commit (74d73953327ad7702922b27ba37c71e3283659c3) to be responsible for this error because it introduced some extra checks on deletion.
Does this happen to anybody else? What may be configured incorrectly on our system?
Kind regards
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