Re: [Nagios-users] Large Installation
On 06/10/2010 07:51 PM, Scott Ward wrote: We are looking to do an large installation of Nagios. Is it possible to monitor over 800 machines and over 14000 services? Has anyone tried doing anything like this? If you have how successful was it and how did you configure it? We have plenty of customers with far more than 1000 hosts. 800 should just be a matter of running Nagios on a decently beefy hardware. Don't attempt it with a virtual system though. They have notoriously crappy performance with multi-fork()'ing applications, and if you ever hit the swap, they'll degrade even further. -- Andreas Ericsson andreas.erics...@op5.se OP5 AB www.op5.se Tel: +46 8-230225 Fax: +46 8-230231 Considering the successes of the wars on alcohol, poverty, drugs and terror, I think we should give some serious thought to declaring war on peace. -- ThinkGeek and WIRED's GeekDad team up for the Ultimate GeekDad Father's Day Giveaway. ONE MASSIVE PRIZE to the lucky parental unit. See the prize list and enter to win: http://p.sf.net/sfu/thinkgeek-promo ___ Nagios-users mailing list Nagios-users@lists.sourceforge.net 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
Re: [Nagios-users] Large Installation
We are going to be using distributed monitoring for sure. We just cannot decide whether we should use NDO to write directly to the database or us NSCA to send back to the master server. Any suggestions? Is there a frontend that actually uses the information in an NDO db? From what I've read it looks like the default Nagios front end uses text files. ~Scott Ward On Fri, Jun 11, 2010 at 4:48 AM, Martin Melin nag...@martinmelin.comwrote: On Thu, Jun 10, 2010 at 21:55, Kevin Keane subscript...@kkeane.comwrote: Config file maintenance can be improved to some extent with careful design of the config files, as well as tools. It is an issue that I am running into with a relatively small installation with 80+ hosts and 400+ services. My installation is highly heterogeneous and very dynamic, which makes config file maintenance a nightmare. Having to restart Nagios after a configuration change doesn’t help either. On the other hand, a network with 2000 identical machines is probably going to be much easier to manage than my type of network. Nitpicking or helpful tip, you decide: Nagios reloads config changes on SIGHUP, you don't have to do a restart. A full restart can take a while on a sufficiently sized installation so having to do one for every change would indeed be a PITA, but I've never seen a reload take more than a few seconds. Cheers Martin -- ThinkGeek and WIRED's GeekDad team up for the Ultimate GeekDad Father's Day Giveaway. ONE MASSIVE PRIZE to the lucky parental unit. See the prize list and enter to win: http://p.sf.net/sfu/thinkgeek-promo ___ Nagios-users mailing list Nagios-users@lists.sourceforge.net 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 -- ThinkGeek and WIRED's GeekDad team up for the Ultimate GeekDad Father's Day Giveaway. ONE MASSIVE PRIZE to the lucky parental unit. See the prize list and enter to win: http://p.sf.net/sfu/thinkgeek-promo___ Nagios-users mailing list Nagios-users@lists.sourceforge.net 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
Re: [Nagios-users] Large Installation
On 06/11/2010 03:04 PM, Scott Ward wrote: We are going to be using distributed monitoring for sure. We just cannot decide whether we should use NDO to write directly to the database or us NSCA to send back to the master server. Any suggestions? Is there a frontend that actually uses the information in an NDO db? From what I've read it looks like the default Nagios front end uses text files. Unless you desperately need performance data from satellite systems handled properly, I'd invite you to give Merlin and Ninja a try. -- Andreas Ericsson andreas.erics...@op5.se OP5 AB www.op5.se Tel: +46 8-230225 Fax: +46 8-230231 Considering the successes of the wars on alcohol, poverty, drugs and terror, I think we should give some serious thought to declaring war on peace. -- ThinkGeek and WIRED's GeekDad team up for the Ultimate GeekDad Father's Day Giveaway. ONE MASSIVE PRIZE to the lucky parental unit. See the prize list and enter to win: http://p.sf.net/sfu/thinkgeek-promo ___ Nagios-users mailing list Nagios-users@lists.sourceforge.net 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
Re: [Nagios-users] NDOUTILS - Duplicate lines for each service check in servicechecks table (ndoutils 1.4b9)
Can someone point out the patch location. I have searched nagios-devel mailing list but could not find it. Thanks in advance. On Tue, Nov 10, 2009 at 6:09 PM, Michael Friedrich michael.friedr...@univie.ac.at wrote: Øyvind Nordang wrote: Duplicate lines for each service check in servicechecks table (ndoutils 1.4b9) I have: Nagios 3.2.0 NDOutils 1.4b9 Is this a bug of feature? I've attached the patch to nagios-devel, dunno when it will be fixed then. But I have analyzed more queries, and there are several other tables missing unique constraints and therefore causing duplicate rows - e.g. systemcommands while testing perfdata output ... Maybe another patch will follow but first I will first on Icinga :-) Kind regards, Michael -- Let Crystal Reports handle the reporting - Free Crystal Reports 2008 30-Day trial. Simplify your report design, integration and deployment - and focus on what you do best, core application coding. Discover what's new with Crystal Reports now. http://p.sf.net/sfu/bobj-july ___ Nagios-users mailing list Nagios-users@lists.sourceforge.net 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 -- Cordially, Shadhin Rahman -- ThinkGeek and WIRED's GeekDad team up for the Ultimate GeekDad Father's Day Giveaway. ONE MASSIVE PRIZE to the lucky parental unit. See the prize list and enter to win: http://p.sf.net/sfu/thinkgeek-promo___ Nagios-users mailing list Nagios-users@lists.sourceforge.net 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
Re: [Nagios-users] Merlin/Ninja perfdata status?
-Original Message- From: Andreas Ericsson [mailto:a...@op5.se] Sent: Friday, June 11, 2010 9:29 AM To: Nagios Users List Subject: Re: [Nagios-users] Large Installation Unless you desperately need performance data from satellite systems handled properly, I'd invite you to give Merlin and Ninja a try. Andreas, We're planning on a Nagios refresh/rearchitecture near the end of this year and I'm really hopeful that we might be able to move to Ninja/Merlin as they do a lot of things we'd really like to have. They also solve some issues we have with our current distributed system. I've been trying to pay attention to the latest developments in this area, but I may have missed something as changes are happening quickly. We do, however, rely pretty heavily on performance data. I think I saw someone had a hack to do it with Merlin, but it's not really part of Merlin right now which makes me not want to adopt it for a production Nagios installation. I recall a sort of Merlin roadmap for the rest of the year indicating that upcoming work was to better support distributed setups, if I remember correctly. Is there also work afoot to get perfdata into Merlin perhaps with the next release? I'm trying to build some test systems to try the current version of Merlin/Ninja to assess how production ready it might be for us by the end of the year when we need to make a decision. Thanks very much for all the hard work you and others at Op5 have put in to these tools. Mark -- ThinkGeek and WIRED's GeekDad team up for the Ultimate GeekDad Father's Day Giveaway. ONE MASSIVE PRIZE to the lucky parental unit. See the prize list and enter to win: http://p.sf.net/sfu/thinkgeek-promo ___ Nagios-users mailing list Nagios-users@lists.sourceforge.net 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
Re: [Nagios-users] Large Installation
Hi Scott, You can also try Centreon software to manage your different pollers and configuration: http://www.centreon.com Here is an overview of the functioning: http://en.doc.centreon.com/CentreonArchitecture To see how it looks like, here is a web demo: http://demo.centreon.com Best regards. -- Romain LE MERLUS rlemer...@merethis.com Tel. +33 (0)1 49 69 97 12 Mob. +33(0)6 85 05 02 82 -- ThinkGeek and WIRED's GeekDad team up for the Ultimate GeekDad Father's Day Giveaway. ONE MASSIVE PRIZE to the lucky parental unit. See the prize list and enter to win: http://p.sf.net/sfu/thinkgeek-promo___ Nagios-users mailing list Nagios-users@lists.sourceforge.net 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
[Nagios-users] Nagios Postemsg
Hello All, I am currently looking for an alternative to using Tivoli , TEC postemsg for a rather large ( 6000 + ) remote environment. I have had great success with Nagios in my small local/remote test environment and the obvious cost savings without having TEC anymore is huge. Can I use the existing postemsg tests that are running on the boxes and via I guess External Commands have Nagios process the messages? For those familiar with both Tivoli Nagios, Is there anything that Tivoli gives me that I cant do with Nagios? I don't see it if there is. Thanks for the help, Steve _ The New Busy think 9 to 5 is a cute idea. Combine multiple calendars with Hotmail. http://www.windowslive.com/campaign/thenewbusy?tile=multicalendarocid=PID28326::T:WLMTAGL:ON:WL:en-US:WM_HMP:042010_5-- ThinkGeek and WIRED's GeekDad team up for the Ultimate GeekDad Father's Day Giveaway. ONE MASSIVE PRIZE to the lucky parental unit. See the prize list and enter to win: http://p.sf.net/sfu/thinkgeek-promo___ Nagios-users mailing list Nagios-users@lists.sourceforge.net 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
Re: [Nagios-users] Large Installation
On 06/11/2010 04:08 PM, Scott Ward wrote: How does Merlin compare with NDO in terms of resource usage? merlin is fairly lightweight. What little memory its uses resides primarily on the stack and fits well inside the stack of 1MiB. Here's the output of ps wwaux | grep merlin on a master system with two connected pollers. As you can see, grep consumes more memory than the merlin daemon does. This is with debug symbols compiled in btw, so it will be roughly half that when it's built for production. root 12286 0.0 0.2 61116 660 pts/0R+ 17:29 0:00 grep -i merlin root 23236 0.0 0.7 50572 1856 ?S13:56 0:01 /opt/monitor/op5/merlin/merlind -c /opt/monitor/op5/merlin/merlin.conf As for CPU usage, it's definitely more lightweight than NDO. A typical merlin daemon will basically idle away most of its time. It's the database that does the heavy lifting after all, so it's not that hard to make merlin itself lean and extremely quick. As for storage-space, it doesn't use nearly as much as ndoutils does, since we don't store the entire log and all status updates in the database, but only the current status and statechanges, where a statechange is defined as either the state has changed, or the object went from soft to hard state, which is basically all we need to make reports look good. Since the logfiles are already partitioned by date, it was deemed a lot easier to write a super-fast parser for those instead and make that parser able to display html output. This is the helper we use in ninja, and it's working extremely well, showing interesting logdata in a matter of seconds. It will grow over time ofcourse, but while NDOUtils' database can grow to tens of gigabytes in a matter of months for a large network, merlin stores about 500MiB for a whole year for the same size network. -- Andreas Ericsson andreas.erics...@op5.se OP5 AB www.op5.se Tel: +46 8-230225 Fax: +46 8-230231 Considering the successes of the wars on alcohol, poverty, drugs and terror, I think we should give some serious thought to declaring war on peace. -- ThinkGeek and WIRED's GeekDad team up for the Ultimate GeekDad Father's Day Giveaway. ONE MASSIVE PRIZE to the lucky parental unit. See the prize list and enter to win: http://p.sf.net/sfu/thinkgeek-promo ___ Nagios-users mailing list Nagios-users@lists.sourceforge.net 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
Re: [Nagios-users] Nagios Postemsg
The main things you will not get from Nagios that you almost always get with Tivoli: * High recurring licensing fees * On-site Tivoli consultants :) Nagios does not give you out of the box the visualization dashboards that Tivoli has but with Nagviz you can you make very nice graphical dashboards at a much much lower cost to your company. Nagios also does not do auto-discovery out of the box but there are projects that give you that capabililty - again at a much lower cost. Distributed Nagios - there are a few choices, you will need to take the time to evaluate them all and choose the right one for you, but again, cost will be lower than Tivoli. The team I am on is building out a distributed architecture for Nagios based on our unique requirements - self service model where many SAs can all change configs on their schedule without our intervention, clustering, fast redistribution of hosts/services across pollers, centralized transparent (to the end user) command and control across all pollers. We are using some existing tools (Nagios and Merlin) and 4 developers and even then the TCO and maintenance cost will be magnitudes of order cheaper than Tivoli with much more functionality than most Tivoli shops offer. A polling model always has some challenges when it comes to scaling big but compared to Tivoli I think you will find Nagios to be both a lot more fun, a lot more flexible, a lot better fit, and, if politics don't interfere, your management should be much more happy with a fixed cost development price tag than the high $$ open ended maintenance costs of a commercial product like Tivoli. - Max On Fri, Jun 11, 2010 at 10:19 AM, steve f a31mod...@hotmail.com wrote: Hello All, I am currently looking for an alternative to using Tivoli , TEC postemsg for a rather large ( 6000 + ) remote environment. I have had great success with Nagios in my small local/remote test environment and the obvious cost savings without having TEC anymore is huge. Can I use the existing postemsg tests that are running on the boxes and via I guess External Commands have Nagios process the messages? For those familiar with both Tivoli Nagios, Is there anything that Tivoli gives me that I cant do with Nagios? I don't see it if there is. Thanks for the help, Steve -- The New Busy think 9 to 5 is a cute idea. Combine multiple calendars with Hotmail. Get busy.http://www.windowslive.com/campaign/thenewbusy?tile=multicalendarocid=PID28326::T:WLMTAGL:ON:WL:en-US:WM_HMP:042010_5 -- ThinkGeek and WIRED's GeekDad team up for the Ultimate GeekDad Father's Day Giveaway. ONE MASSIVE PRIZE to the lucky parental unit. See the prize list and enter to win: http://p.sf.net/sfu/thinkgeek-promo ___ Nagios-users mailing list Nagios-users@lists.sourceforge.net 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 -- ThinkGeek and WIRED's GeekDad team up for the Ultimate GeekDad Father's Day Giveaway. ONE MASSIVE PRIZE to the lucky parental unit. See the prize list and enter to win: http://p.sf.net/sfu/thinkgeek-promo___ Nagios-users mailing list Nagios-users@lists.sourceforge.net 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
Re: [Nagios-users] Large Installation
I can attest / confirm what Andreas states about the merlin daemon. BTW, Andreas, I just patched our code base to contain your 0.6.7 changes and I will be posting that on Github for you and anyone else interested to check out over the weekend. Our tests so far are showing that with the Merlin NEB and daemon on a poller we lose less than 10% capacity on the poller compared to the poller without the NEB module and Merlind - our test poller is running 10k active services checks and 1k active host checks in less than 5 minutes with polling headroom to spare. - Max -- ThinkGeek and WIRED's GeekDad team up for the Ultimate GeekDad Father's Day Giveaway. ONE MASSIVE PRIZE to the lucky parental unit. See the prize list and enter to win: http://p.sf.net/sfu/thinkgeek-promo___ Nagios-users mailing list Nagios-users@lists.sourceforge.net 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
Re: [Nagios-users] Large Installation
Our changes to Merlin allow N pollers to all write to the same database without conflicts. -- ThinkGeek and WIRED's GeekDad team up for the Ultimate GeekDad Father's Day Giveaway. ONE MASSIVE PRIZE to the lucky parental unit. See the prize list and enter to win: http://p.sf.net/sfu/thinkgeek-promo___ Nagios-users mailing list Nagios-users@lists.sourceforge.net 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
[Nagios-users] Merlin/Ninja
Well, Talking about Ninja, I installed on a Debian Lennt box. The installation process seemed a bit buggy and I see some problems like with scheduling scripts, but I find Ninja a useful tool. -- ThinkGeek and WIRED's GeekDad team up for the Ultimate GeekDad Father's Day Giveaway. ONE MASSIVE PRIZE to the lucky parental unit. See the prize list and enter to win: http://p.sf.net/sfu/thinkgeek-promo ___ Nagios-users mailing list Nagios-users@lists.sourceforge.net 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
Re: [Nagios-users] Large Installation
If you aren't actually using the data from NDO, there is little point in creating the DB. I would probably not use NDO to write directly from the satellites. Here is why: - Double the network traffic. The satellites have to send check results AND database writes. - Less reliable. How would you keep the master server from writing the same information to the DB that a satellite has just written, and messing up the data? - NDO can be a serious performance bottleneck; you wouldn't want your satellites to be a potential point of failure in terms of performance. - If the satellites are behind a firewall, it may not even be possible to write directly to the DB. From: Scott Ward [mailto:13.sward...@gmail.com] Sent: Friday, June 11, 2010 6:05 AM To: Nagios Users List Subject: Re: [Nagios-users] Large Installation We are going to be using distributed monitoring for sure. We just cannot decide whether we should use NDO to write directly to the database or us NSCA to send back to the master server. Any suggestions? Is there a frontend that actually uses the information in an NDO db? From what I've read it looks like the default Nagios front end uses text files. ~Scott Ward On Fri, Jun 11, 2010 at 4:48 AM, Martin Melin nag...@martinmelin.commailto:nag...@martinmelin.com wrote: On Thu, Jun 10, 2010 at 21:55, Kevin Keane subscript...@kkeane.commailto:subscript...@kkeane.com wrote: Config file maintenance can be improved to some extent with careful design of the config files, as well as tools. It is an issue that I am running into with a relatively small installation with 80+ hosts and 400+ services. My installation is highly heterogeneous and very dynamic, which makes config file maintenance a nightmare. Having to restart Nagios after a configuration change doesn't help either. On the other hand, a network with 2000 identical machines is probably going to be much easier to manage than my type of network. Nitpicking or helpful tip, you decide: Nagios reloads config changes on SIGHUP, you don't have to do a restart. A full restart can take a while on a sufficiently sized installation so having to do one for every change would indeed be a PITA, but I've never seen a reload take more than a few seconds. Cheers Martin -- ThinkGeek and WIRED's GeekDad team up for the Ultimate GeekDad Father's Day Giveaway. ONE MASSIVE PRIZE to the lucky parental unit. See the prize list and enter to win: http://p.sf.net/sfu/thinkgeek-promo ___ Nagios-users mailing list Nagios-users@lists.sourceforge.netmailto:Nagios-users@lists.sourceforge.net 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 -- ThinkGeek and WIRED's GeekDad team up for the Ultimate GeekDad Father's Day Giveaway. ONE MASSIVE PRIZE to the lucky parental unit. See the prize list and enter to win: http://p.sf.net/sfu/thinkgeek-promo___ Nagios-users mailing list Nagios-users@lists.sourceforge.net 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
