<!doctype html public "-//w3c//dtd html 4.0 transitional//en"> <html> Hi, Have a look at <A HREF="http://www.nagios.org/propaganda.php">http://www.nagios.org/propaganda.php</A> (and fill out the form, folks :-). It will give you an idea of existing implementations. About your sizing: 512 Mb of RAM? Come on, I've just ordered a home PC for myself with that amount of memory. I can only agree with Brian: given the price of RAM, buy some more. Our Netsaint server has got 1 Gb, and is pretty happy with it (read: using it): Mem: 1029852K av, 897404K used, 132448K free, 0K shrd, 107944K buff Swap: 2096472K av, 32320K used, 2064152K free 637028K cached Regards, Tom Greg Vickers wrote: <blockquote TYPE=CITE>Thanks Brian - actually 900 of these hosts will only have one service check running on them - they are Lab PCs that we will be running a check on them to see if anyone is logged on or not (they are Win2K pcs). We will have 20-30 servers that we will be running 10-15 services checks on so we wind up with only 1200 to 1300 service checks. In your opinion, will a single processor with 512Mb ram be enough? We won't be expanding the number of service checks in the foreseeable future. Greg At 13:21 27/08/2002, Brian Whitehead wrote: >If you are going to be monitoring 1000 hosts you are probably looking >more like 5-10,000+ services. If you monitor load, ssh, ftp, http, >zombie process, disk space, that would be 6 services times 1,000 hosts. >(6,000). At that rate I would opt for the second processor or a Xeon, >which emulates two processors in one. I would also opt for a lot more >RAM. RAM is very inexpensive and the more you can keep in memory the >faster it's going to run and the less drive I/O you'll have. Just my >opinion. > > >On Mon, 2002-08-26 at 21:38, Greg Vickers wrote: > > Hey all, I included the below to ask the correspondents: > > > > What kind of processor are you running this system on and how do you find > > the processor utilization on this server? I ask because I am in the middle > > of sourcing a server for our section and are looking at a single processor > > P3 1.4 GHz with 512Mb ram (and RAID5 3*18Gb 10k rpm + hot swap etc etc > *G*). > > > > We will be monitoring up to 1000 hosts and a bucket load (I guess > > 1500-2000) of services. (I actually hadn't thought about how many > > hosts/services we would be monitoring!) So for that kind of load, is a > > second processor warranted? > > > > Thanks all, > > Greg > > > > p.s. just read through the tuning doc > > > > > am currently watching about 300 hosts with approaching 600 service > > >There are some performance tuning options that you can apply. This > > >helped my memory out greatly. I'm not 100% sure of the ramifications, > > >but I haven't seen any ill effects from the first one. > > > > > >Apache defaults to 8 daemons running. I changed this to 2 at work and 1 > > >at home and gained a large amount of memory back. > > > > > >You can also scale nagios to only run X number of checks at a time. > > >Depending on your configuration and how often the checks occur, you can > > >have nagios only perform 50 checks at a time for example. > > > > > ><a href="http://nagios.sourceforge.net/docs/1_0/tuning.html">http://nagios.sourceforge.net/docs/1_0/tuning.html</a> > > >Check #3 on the list for info on deciding how to scale your checks back. > > > > > >Hope this helps.... > > > > > >Andy > > > > > >-----Original Message----- > > >From: nagios-users-admin@lists.sourceforge.net > > >[<a href="mailto:nagios-users-admin@lists.sourceforge.net">mailto:nagios-users-admin@lists.sourceforge.net</a>] On Behalf Of Rusch, > > >Daniel > > >Sent: Monday, August 26, 2002 9:34 AM > > >To: 'Terry Simons'; Timo Koskela > > >Cc: nagios-users@lists.sourceforge.net > > >Subject: SPAM - RE: [Nagios-users] Nagios is running multiple daemons > > > > > >I posted a similar message a week or so ago and didn't get any response. > > >On > > >my system the number of processes running that are owned by nagios > > >varies > > >from a half dozen to over 100. I assume that nagios is running > > >multithreaded and spawning of sub-processes. I have noticed that nagios > > >will burry the box it is running on and then of course the number of > > >processes owned by nagios increases dramatically as they pile up. Check > > >to > > >see if nagios is over loading your system. I logged uptime and ps -few > > >| > > >grep nagios | wc -l every five minutes. > > > > > >I posted my message to see what a "normal" number of processes should > > >be, > > >but received no replies. > > > > > >Dan > > > > > >-----Original Message----- > > >From: Terry Simons [<a href="mailto:galimore@mac.com">mailto:galimore@mac.com</a>] > > >Sent: Monday, August 26, 2002 7:13 AM > > >To: Timo Koskela > > >Cc: nagios-users@lists.sourceforge.net > > >Subject: Re: [Nagios-users] Nagios is running multiple daemons > > > > > > > > >I don't know the reason, but I have seen multiple copies of Nagios > > >running. > > > > > >I haven't seen more than two, but it wasn't a parent/child > > >relationship... there were actually two copies of Nagios running... > > > > > >I thought that maybe it had something to do with the way that Nagios > > >parallelizes checks, but maybe not... > > > > > >Ethan? > > > > > >- Terry > > > > > > > > >On Sunday, August 25, 2002, at 11:59 PM, Timo Koskela wrote: > > > > > > > Hi all, > > > > > > > > Has somebody had same problem as I with Nagios. If there is something > > > > wrong in our LAN where nagios is running, or in firewall, example line > > > > > > > is cut to outer world Nagios start to run multiple daemons. Like > > >couple > > > > days ago when i checked there was about 20 copies of Nagios, and it > > > > didin't work so well then, but when i killed the main pid, they all > > > > died. Please let me know if you know the reason... > > > > > > > > Timo > > > > Finland > > > > > > >Missing every moment and preparing for the next. > > > > > > > > > > > >------------------------------------------------------- > > >This sf.net email is sponsored by: OSDN - Tired of that same old > > >cell phone? Get a new here for FREE! > > ><a href="https://www.inphonic.com/r.asp?r=sourceforge1&refcode1=vs3390">https://www.inphonic.com/r.asp?r=sourceforge1&refcode1=vs3390</a> > > >_______________________________________________ > > >Nagios-users mailing list > > >Nagios-users@lists.sourceforge.net > > ><a href="https://lists.sourceforge.net/lists/listinfo/nagios-users">https://lists.sourceforge.net/lists/listinfo/nagios-users</a> > > > > > > > > >------------------------------------------------------- > > >This sf.net email is sponsored by: OSDN - Tired of that same old > > >cell phone? Get a new here for FREE! > > ><a href="https://www.inphonic.com/r.asp?r=urceforge1&refcode1=3390">https://www.inphonic.com/r.asp?r=urceforge1&refcode1=3390</a> > > >_______________________________________________ > > >Nagios-users mailing list > > >Nagios-users@lists.sourceforge.net > > ><a href="https://lists.sourceforge.net/lists/listinfo/nagios-users">https://lists.sourceforge.net/lists/listinfo/nagios-users</a> > > > > > > > > > > > >------------------------------------------------------- > > >This sf.net email is sponsored by: OSDN - Tired of that same old > > >cell phone? Get a new here for FREE! > > ><a href="https://www.inphonic.com/r.asp?r_______________________________________">https://www.inphonic.com/r.asp?r_______________________________________</a> > ________ > > >Nagios-users mailing list > > >Nagios-users@lists.sourceforge.net > > ><a href="https://lists.sourceforge.net/lists/listinfo/nagios-users">https://lists.sourceforge.net/lists/listinfo/nagios-users</a> > > > > ================================= > > Greg Vickers > > Computer Systems Officer > > Student Support and Systems > > Teaching and Learning Support Systems, QUT > > g.vickers@qut.edu.au > > Ph: 07 3864 8276 Fax: 07 3864 5425 > > Mob: 0416 001 674 SD: 6147 > > > > > > > > ------------------------------------------------------- > > This sf.net email is sponsored by: OSDN - Tired of that same old > > cell phone? Get a new here for FREE! > > <a href="https://www.inphonic.com/r.asp?r=sourceforge1&refcode1=vs3390">https://www.inphonic.com/r.asp?r=sourceforge1&refcode1=vs3390</a> > > _______________________________________________ > > Nagios-users mailing list > > Nagios-users@lists.sourceforge.net > > <a href="https://lists.sourceforge.net/lists/listinfo/nagios-users">https://lists.sourceforge.net/lists/listinfo/nagios-users</a> >-- >Brian Whitehead - A+, LCP, RHCE >Systems Administrator - Linux Consultant >Direct: 816.512.9417 >Mobile: 816.215.1598 ><a href="mailto:brian@whiteheadconsulting.com">mailto:brian@whiteheadconsulting.com</a> > >Whitehead Consulting Group >1505 Bradford Drive >Greenwood, MO 64034 >Phone: 816.537.7170 ><a href="http://www.whiteheadconsulting.com">http://www.whiteheadconsulting.com</a> ================================= Greg Vickers Computer Systems Officer Student Support and Systems Teaching and Learning Support Systems, QUT g.vickers@qut.edu.au Ph: 07 3864 8276 Fax: 07 3864 5425 Mob: 0416 001 674 SD: 6147 ------------------------------------------------------- This sf.net email is sponsored by: OSDN - Tired of that same old cell phone? Get a new here for FREE! <a href="https://www.inphonic.com/r.asp?r=sourceforge1&refcode1=vs3390">https://www.inphonic.com/r.asp?r=sourceforge1&refcode1=vs3390</a> _______________________________________________ Nagios-users mailing list Nagios-users@lists.sourceforge.net <a href="https://lists.sourceforge.net/lists/listinfo/nagios-users">https://lists.sourceforge.net/lists/listinfo/nagios-users</a></blockquote> </html> ------------------------------------------------------- This sf.net email is sponsored by: OSDN - Tired of that same old cell phone? Get a new here for FREE! https://www.inphonic.com/r.asp?r=sourceforge1&refcode1=vs3390