bolovan bogdan wrote: > Hello , > > I have a problem monitoring a big number of Cisco and non unix hosts. ( > about 5000) > I use nagios 3.0a5. > i do nothing but "host checks" to these hosts.( no service checks), as all I > need is availability. > > > I initially used check_ping for all and the hosts were polled in about 7-8 > minutes. > Check_ping opens about 100 -> 200 processes , and takes my machine to loads > between 2 and 7 > I have 50% free memory left and the CPU usage reaches 20% > > > I tried "check_fping" for all ,( for a few hosts check_fping works just fine > , it's way faster than normal ping) but the problem is that it opens lots > and lots of processes that stay in the sleep state a while and then close. > It reached 4000 processes if you can belive that and the load reached 270 > :)) > -- incredible right... > > This is not a server problem > > 4* Intel(R) Xeon(TM) CPU 3.40GHz > 7GB RAM > 280 GB HD space > > > > So is there any way to limit the number of fping processes ??
Use check_icmp instead. It will provide an enormous performance boost for you, especially if you do it like this: ln -s check_icmp check_host and then run check_host $HOSTADDRESS$ in your command object definition. > Should I upgrade to 3.0b5 ?? Yes. > is there any major difference? Yes. $ git diff --stat nagios-3.0a5 nagios-3.0b5 | tail -1 159 files changed, 11292 insertions(+), 8640 deletions(-) Besides that, nagios-3.0a5 is alpha-code, meaning "you're lucky if it runs a week straight without crashing", more or less. -- Andreas Ericsson [EMAIL PROTECTED] OP5 AB www.op5.se Tel: +46 8-230225 Fax: +46 8-230231 ------------------------------------------------------------------------- This SF.net email is sponsored by: Splunk Inc. Still grepping through log files to find problems? Stop. Now Search log events and configuration files using AJAX and a browser. Download your FREE copy of Splunk now >> http://get.splunk.com/ _______________________________________________ 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
