18 Dec
2006
18 Dec
'06
11:11 a.m.
2006/12/15, Daniel-Constantin Mierla <daniel(a)voice-system.ro>ro>:
The problem I'm referring to is when there's a misconfiguration and
the proxy sends to itself the message because it thinks the message is
directed to itself instead of a subscriber's UA
(alias,listen,loose_route(),...).
It is true that the 100 reply is sent back and that child is not
blocked BUT, the message is relayed to the server itself, which is
probably faster that the messages coming from the UA, and therefore
children are constantly processing the "spiral" message.
Coming back to MAx problem....do you see a Too Many Hops reply sent
back after the "blocking period" (this usually happens in the
"spiral"
because every processing decreases MAx-Forwards until the lower limit
is reached...)??
Posting config and some logs/captures might help to know the problem.
Samuel.
On 12/14/06 17:03, samuel wrote:
Didn't know of this...
It might be due to a DNS query....whenver a
request has to be
forwarded to a domain, openSER makes a DNS query to resolv the IP.
During this operation, the child processing the request will not
answer to further incoming messages.
If proves to be because of DNS, the best is
to install nscd (name
service cache daemon) which will speed-up a lot DNS interaction. Having
it in the system will help other applications to do DNS queries faster
(e.g., asterisk, mail servers ...). It looks to be really powerful being
able to cache many services, not only DNS. It comes packaged with most
of common distributions.
> it also can be
happening due to a spiral loop that stays on the server.
This shouldn't block
the process, and if is t_relayed, a 100 reply
should be sent back.
Cheers,
Daniel