We are using Asterisk hints to track endpoints’ states using custom hints. There are around 7000 active subscriptions at a time.
When the watchers unsubscribe from the hints, after ~5000 unsubscribes Asterisk hangs. There are
tcptls.c: FILE * open failed!
WARNINGs in logs, calls in progress are not dropped, but new ones can’t be established. Most of the registrations become invalid - clients are dropped with error 503.
There are no other warnings or messages provided by asterisk neither in it’s own logs nor in syslog.
Asterisk’s version is 11.23.1. I know that is an old unsupported version, migrating to ast18 is in progress, but we have to keep this version running in production for a while.
Does anyone faced issues in Ast11 like this?
Thanks in advance.