On 04/06/07, Adam Kennedy <[EMAIL PROTECTED]> wrote: > I'm having one heck of a time trying to get my service checks to be > something reasonable. They are 60 seconds or less for a few minutes > after starting nagios, then the service latency increases to 80 seconds > or higher (usually if left go, it ranges in 120 to 160seconds or higher). > > Host check latency is 0 seconds. > Host check is check_fping > > The various service checks are ping (via check_fping), roughly 5 snmp > services per host, and telnet for a handful of them. > > > There are 440 hosts, and roughly 1600 services being checked. > I've followed the tuning guide on the nagios website and have done all > applicable items, I think. The max_concurrent_checks is 900. > > > Server hardware specs: > - Intel Core 2 Duo 2.13Ghz > - 3Ware 9550SX RAID card > - Three Seagate 250Gb SATA drives running in RAID-5 > - Broadcom Gigabit NIC, onboard > - 3Gb of DDR2 5300 RAM > - Linux Kernel 2.6.21.3 > - Slackware 11.0 > > > Any ideas? I'm going insane over here trying to figure this out. The > same server also runs MySQL and Cacti. Cacti graphs roughly the same > amount of services and the same number of hosts. For the tuning of > nagios, I have cacti completely turned off.
If you're running NDOUtils, try tuning the size of some of the tables down or set up a suitable index on the biggest tables. There's a problem with full table scans on the deletion of old records which was discussed on this list a few weeks ago which might be contributing to the problem. (did we every come to a conclusion about what index to use, I can't remember?) If all of your checks run once a minute, consider whether it's a appropriate for all of them to run that frequently and maybe configure some to run every 5 minutes. I run disk space checks every 30 minutes or so usually to free up time for other checks to run. I also categorise servers into Gold, Silver and Bronze and run the most frequent checks only on the Gold and Silver servers. hth, Jim ------------------------------------------------------------------------- This SF.net email is sponsored by DB2 Express Download DB2 Express C - the FREE version of DB2 express and take control of your XML. No limits. Just data. Click to get it now. http://sourceforge.net/powerbar/db2/ _______________________________________________ Nagios-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/nagios-users ::: Please include Nagios version, plugin version (-v) and OS when reporting any issue. ::: Messages without supporting info will risk being sent to /dev/null
