The installation is a fresh 1.6.6 installation on a clean install of Redhat 3.0. It's been running fine for about 2 weeks logging the same amount of traffic to local files only. When I turned on the UDP destinations, it started chewing up memory. The destinations are receiving logs entries properly, and the source address is properly spoofed. Versions of libs: libnet 1.1.2 libol 0.3.14 Here's the syslog-ng config file - the only thing that changed to cause this memory eating behavior is the 3 lines under "# Sets up local destination for Cisco logs". It makes no difference if I am sending to a single host, or multiple, the memory "leak" is still there. I have it currently running under "ElectricFence" looking for malloc problems - so far none, just memory consumption. ------------------------------------------- options { long_hostnames(off); sync(0); }; source src { unix-stream("/dev/log"); internal(); }; source kernsrc { file("/proc/kmsg"); }; source net { udp(port(514)); }; # Sets up local desitation for Cisco logs destination ciscolog { file("/var/log/cisco.log"); }; # Sets up forwarding to other hosts destination loghostd { udp(loghostd spoof_source(yes)); }; destination loghosta { udp(loghosta spoof_source(yes)); }; destination scribe02 { udp(scribe02 spoof_source(yes)); }; # standard localhost logging stuff destination authlog { file("/var/log/auth.log"); }; destination syslog { file("/var/log/syslog"); }; destination cron { file("/var/log/cron.log"); }; destination daemon { file("/var/log/daemon.log"); }; destination kern { file("/var/log/kern.log"); }; destination lpr { file("/var/log/lpr.log"); }; destination user { file("/var/log/user.log"); }; destination uucp { file("/var/log/uucp.log"); }; destination ppp { file("/var/log/ppp.log"); }; destination mail { file("/var/log/mail.log"); }; destination mailinfo { file("/var/log/mail.info"); }; destination mailwarn { file("/var/log/mail.warn"); }; destination mailerr { file("/var/log/mail.err"); }; destination local0 { file("/var/log/local0.log"); }; destination local1 { file("/var/log/local1.log"); }; destination all { file("/var/log/all.log"); }; destination allnet { file("/var/log/allnet.log"); }; destination newscrit { file("/var/log/news/news.crit"); }; destination newserr { file("/var/log/news/news.err"); }; destination newsnotice { file("/var/log/news/news.notice"); }; destination debug { file("/var/log/debug"); }; destination messages { file("/var/log/messages"); }; destination console { usertty("root"); }; destination console_all { file("/dev/tty12"); }; # Filters Cisco events - well, at least local7 and local4 events filter f_cisco { facility(local7,local4);}; filter f_notcisco {not facility(local7, local4); }; filter f_auth { facility(auth); }; filter f_authpriv { facility(auth, authpriv); }; filter f_syslog { not facility(authpriv, mail) and not match(ppp.*LCP); }; filter f_cron { facility(cron); }; filter f_daemon { facility(daemon); }; filter f_kern { facility(kern); }; filter f_lpr { facility(lpr); }; filter f_mail { facility(mail) and not match (imapd); }; filter f_user { facility(user); }; filter f_uucp { facility(cron); }; filter f_ppp { program(ppp); }; filter f_news { facility(news); }; filter f_debug { not facility(auth, authpriv, news, mail) and not match(ppp.*LCP); }; filter f_messages { level(info..warn) and not facility(auth, authpriv, mail, news); }; filter f_emergency { level(emerg); }; filter f_info { level(info); }; filter f_notice { level(notice); }; filter f_warn { level(warn); }; filter f_crit { level(crit); }; filter f_err { level(err); }; # Reflects Cisco SYSLOG packets to remote hosts log { source(net); filter(f_cisco); destination(loghostd); }; log { source(net); filter(f_cisco); destination(loghosta); }; log { source(net); filter(f_cisco); destination(scribe02); }; # Keeps a copy for ourself log { source(net); filter(f_cisco); destination(ciscolog); }; log { source(src); filter(f_authpriv); destination(authlog); }; log { source(src); filter(f_syslog); destination(syslog); }; log { source(src); filter(f_cron); destination(cron); }; log { source(src); filter(f_daemon); destination(daemon); }; log { source(kernsrc); filter(f_kern); destination(kern); }; log { source(src); filter(f_lpr); destination(lpr); }; log { source(src); filter(f_mail); destination(mail); }; log { source(src); filter(f_user); destination(user); }; log { source(src); filter(f_uucp); destination(uucp); }; log { source(src); filter(f_mail); filter(f_info); destination(mailinfo); }; log { source(src); filter(f_mail); filter(f_warn); destination(mailwarn); }; log { source(src); filter(f_mail); filter(f_err); destination(mailerr); }; log { source(src); filter(f_news); filter(f_crit); destination(newscrit); }; log { source(src); filter(f_news); filter(f_err); destination(newserr); }; log { source(src); filter(f_news); filter(f_notice); destination(newsnotice); }; log { source(src); filter(f_debug); destination(debug); }; log { source(src); filter(f_messages); destination(messages); }; log { source(src); filter(f_emergency); destination(console); }; log { source(src); filter(f_ppp); destination(ppp); }; log { source(src); destination(console_all); }; log { source(src); destination(all); }; # Log all non cisco stuff to localfile for debugging log { source(net); filter(f_notcisco); destination(allnet); }; Henry - Balazs Scheidler <bazsi@balabit.hu> Sent by: syslog-ng-admin@lists.balabit.hu 02/28/2005 11:11 AM Please respond to syslog-ng@lists.balabit.hu To syslog-ng@lists.balabit.hu cc Subject Re: [syslog-ng]Syslog-NG 1.6.6 memory leak when sending UDP logs On Mon, 2005-02-28 at 09:36 -0500, henry@shoelacecity.com wrote:
I'm running 1.6.6 on Linux Redhat ES 3.0 logging Cisco router logs to local files and it's been running just fine for over a week. I just enabled forwarding for local4 and local7 (with spoof UDP) to 2 additional hosts via UDP and noticed, within a day, that it syslog-NG has consumed all available memory. It continues to log, however, the system starts killing processes off unless I restart syslog-ng.
If I understand you correctly you use syslog-ng to send logs to another host via UDP. Is it a new installation or this installation has worked so far and upgrading to 1.6.6 is what triggered the problem? Are you using address spoofing (spoof-source(yes))? Can you post your configuration file? -- Bazsi _______________________________________________ syslog-ng maillist - syslog-ng@lists.balabit.hu https://lists.balabit.hu/mailman/listinfo/syslog-ng Frequently asked questions at http://www.campin.net/syslog-ng/faq.html