Hello im using redis for topos and i noticed that when kamailio sending INVITEs and no response received yet and and if redis crash the retransmissions stop but the fr_timer is never called so no 408 is generated by kamailio.

So the transaction lives for a very long long time in memory.

Do topos callbacks can affect the the tm retransmission handler this way ? Because i know it is called everytime for retransmissions.

Did some already have that kindle of issue ?

On the logs i noticed some times EAGAIN error on redis error and ndb_redis seems to use blocking sending socket.

Im using kamailio 5.7.0