I had this problem on one (dual xeon) system. The cause was a very slow disk system - it was SAS but the OS decided to use it as IDE - and the killer was bandwidth logging by iptables.
Checking with wireshark it could sometimes take over a second for a packet to get out of an interface. When I changed the disk driver and turned off bandwidth logging all the problems went away. Vic Jolin wrote: > Hi my syslog.conf already has something like that, any other place I > should look at? > > On Thu, Dec 2, 2010 at 4:44 AM, Daniel-Constantin Mierla > <mico...@gmail.com <mailto:mico...@gmail.com>> wrote: > > > > On 12/1/10 9:41 PM, Vic Jolin wrote: >> debug level is 9, do I have to set syslog to be configured >> asynchronously for this? >> >> The rate of the calls is not more than 20 cps > if you diverted the log messages to a specific file, then add a > dash '-' in front of file path: > > > http://www.kamailio.org/dokuwiki/doku.php/tutorials:debug-syslog-messages#custom_syslog_file > > Cheers, > Daniel > > >> >> On Thu, Dec 2, 2010 at 4:35 AM, Daniel-Constantin Mierla >> <mico...@gmail.com <mailto:mico...@gmail.com>> wrote: >> >> Hello, >> >> >> On 12/1/10 9:33 PM, Vic Jolin wrote: >> >> Hi all, >> >> Just want to ask if anybody here has come across this >> problem of mine, when single call proxy is ok, but when >> you send more traffic to it, calls somehow get stuck, >> trying to make a new call it takes a lot of time and so >> it times out. >> >> Does anybody know what could be the problem? >> >> looks like you have some blocking operation there. Is it >> default config? What is debug level you use (if it is high, >> then be sure syslog is configured asynchronously). What is >> the rate of the new calls you send? >> >> Cheers, >> Daniel >> >> -- >> Daniel-Constantin Mierla >> Kamailio (OpenSER) Advanced Training >> Jan 24-26, 2011, Irvine, CA, USA >> http://www.asipto.com >> >> > > -- > Daniel-Constantin Mierla > Kamailio (OpenSER) Advanced Training > Jan 24-26, 2011, Irvine, CA, USA > http://www.asipto.com > > > ------------------------------------------------------------------------ > > _______________________________________________ > SIP Express Router (SER) and Kamailio (OpenSER) - sr-users mailing list > sr-users@lists.sip-router.org > http://lists.sip-router.org/cgi-bin/mailman/listinfo/sr-users >
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