I found when I increased the rrd level to "full" for hosts, domains, and interfaces it would fault very often - sometimes it would only run for a few seconds. The gdb spewed various messages about files missing, etc. I've since changed it to Full for Interfaces only and it's much better.
I've also found that if a browser is left open for long periods on any number of report pages, this will eventually cause a fault as well. I had nTop running perfect for about a month then it started dying several times a day. I found one of my team had added nTop reports to his .. "monitoring console" - which is a browser window open to a BUNCH of various monitoring things: MRTG, nTop, etc. I had him remove it and all is well again. Log files showed "EPIPE" errors when sending to web client.... G -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Thomas Harold Sent: Friday, May 09, 2008 6:20 AM To: [email protected] Subject: Re: [Ntop] Segfault on Fedora 8 I've also been seeing random crashes for the past month on CentOS 5.1 with v3.3 (ntop.x86_64 3.3-1.el5.rf). These started after we changed the default settings for RRD and ntop itself. Most of the crashes leave no information in /var/log/messages, only a segfault message from the kernel. Higher levels of network activity seem to make it crash more often (it averages one crash every 6-12 hours. Sometimes the gap is as short as 45 minutes, other times it runs for over a day. ... For the moment, we've resorted to running a script every 3 minutes via cron to restart ntop when it falls over. It doesn't do anything to help maintain our Global Traffic Statistics page totals, but it at least keeps the Network Load graphs from having too many gaps. #!/bin/bash # Watches the ntop process if [ ! `/usr/bin/pgrep -u ntop ntop` ]; then echo "ntop is not running, restarting it" /etc/init.d/ntop start; else echo "ntop is running" fi And we setup Nagios to keep an eye on things for times when the watch script doesn't do its job. _______________________________________________ Ntop mailing list [email protected] http://listgateway.unipi.it/mailman/listinfo/ntop <font size="1"> <div style='border:none;border-bottom:double windowtext 2.25pt;padding:0in 0in 1.0pt 0in'> </div> "This email is intended to be reviewed by only the intended recipient and may contain information that is privileged and/or confidential. If you are not the intended recipient, you are hereby notified that any review, use, dissemination, disclosure or copying of this email and its attachments, if any, is strictly prohibited. If you have received this email in error, please immediately notify the sender by return email and delete this email from your system." </font> _______________________________________________ Ntop mailing list [email protected] http://listgateway.unipi.it/mailman/listinfo/ntop
