Hi Carsten, MAX_RECV_BUFFER_SIZE (or -b cl param) is used only as upper limit when auto discovery/setting the socket buffer.
Regards, Bogdan Carsten Bock wrote: > Hi Bogdan, > > i have another question regarding the UDP buffer size: > If we set the UDP-Buffer of the system to, let's say 1 MByte: Do we also > have to edit MAX_RECV_BUFFER_SIZE? What happens, if we don't? Looking at > udp_server.c it seems like this value is ignored... > > Thank you, > Carsten > > > Am Dienstag, den 25.03.2008, 12:53 +0200 schrieb Bogdan-Andrei Iancu: > >> Hi Klaus, Hi Carsten, >> >> Setting a large buffer for the UDP socket will not solve the problem of >> slow openser processing, but will solve the problem of temporary >> overloads due a short traffic peek or due short openser blocking in an >> synchronous op (like DNS or DB). In such corner cases, the buffering in >> the kernel socket will avoid message dropping. >> >> Regards, >> Bogdan >> >> Klaus Darilion wrote: >> >>> Carsten Bock schrieb: >>> >>> >>>> Hi, >>>> >>>> short question: >>>> Can anybody give me a hint regarding the Linux UDP-Buffer size? Are >>>> there any known good values for this or is the default value (128k) of >>>> Linux sufficient? I've read, regarding other SIP-Systems (namely IBM SIP >>>> Servlets and Communigate pro), the recommendation to increase the >>>> UDP-Buffer-size to 3 or even 4 MByte.... >>>> Are there any recommended / known best values for heavy load OpenSER >>>> Installations? >>>> >>>> >>> IMO these values are too high. If the server is for any reason to slow >>> to handle the load and the buffer fills up, then it might happen that >>> the transactions are already timeout in the UAC when the SIP proxy >>> starts processing the requests. If the proxy is overloaded IMO the >>> requests should be dropped instead of queuing them for too long time. >>> >>> regards >>> klaus >>> >>> _______________________________________________ >>> Users mailing list >>> [email protected] >>> http://lists.openser.org/cgi-bin/mailman/listinfo/users >>> >>> >>> > > > _______________________________________________ Users mailing list [email protected] http://lists.openser.org/cgi-bin/mailman/listinfo/users
