Re: [Nagios-users] Uniquely Identifiable Events in Nagios.log?
> Since you almost certainly want to maintain a single process to handle > the logged lines, why not just write a tail-like program that parses > them one by one as they're written? After all, you'd hardly want to > slog through all the log-entries multiple times anyway. > With this solution, I find it hard to see a need for uniqueness. should > it happen that you still want to be able to uniquely identify lines, I > believe a hash over the last 15 or so lines should suffice, assuming > it's sufficiently strong (say, SHA1 or something). The chance of running > into a collision should be very slim, and if it happens you can just > increase the number of hashed lines. > > -- > Andreas Ericsson andreas.erics...@op5.se Thanks for the advice Andreas, I'll take a look into this approach. Cheers, Chris -- ___ 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] Uniquely Identifiable Events in Nagios.log?
Christopher McAtackney wrote: > Hi all, > > I was wondering if it is possible to configure Nagios to produce > uniquely identifiable entries in the nagios/var/nagios.log file? > > The reason I ask, is that I would like to parse this log file for > service check results and perform further processing based on the > values discovered there. The trouble is, that as far as I can see, > Nagios uses a time-stamp which is only accurate to the second, and so > my log files have lines which all have the same time-stamp. Is there a > way to increase the accuracy of this time-stamp perhaps? Or any other > suitable solution to the general problem of identifying log entries? > Since you almost certainly want to maintain a single process to handle the logged lines, why not just write a tail-like program that parses them one by one as they're written? After all, you'd hardly want to slog through all the log-entries multiple times anyway. With this solution, I find it hard to see a need for uniqueness. should it happen that you still want to be able to uniquely identify lines, I believe a hash over the last 15 or so lines should suffice, assuming it's sufficiently strong (say, SHA1 or something). The chance of running into a collision should be very slim, and if it happens you can just increase the number of hashed lines. -- 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. -- ___ 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] Uniquely Identifiable Events in Nagios.log?
On Mar 26, 2009, at 9:56 AM, Christopher McAtackney wrote: > I have come across NDO before, but unfortunately I cannot run MySQL in > the production environment, and so I have to find a different solution > to this problem. I found an NDOUtils Oracle, but I believe that it is > still in a pre-alpha state, and so probably not suitable for a > production environment with thousands of checks occurring. If you have any programmers on staff you could create your own event_broker to log to a custom file or add custom log entries to nagios.log. Someone may have already created one but a quick Google doesn't show any obvious candidates. -- Marc -- ___ 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] Uniquely Identifiable Events in Nagios.log?
2009/3/26 Marc Powell : > > On Mar 26, 2009, at 9:22 AM, Christopher McAtackney wrote: > >> Hi all, >> >> I was wondering if it is possible to configure Nagios to produce >> uniquely identifiable entries in the nagios/var/nagios.log file? > > No, the log format isn't configurable. > > >> Or any other suitable solution to the general problem of >> identifying log entries? > > NDO seems like a good fit. It's all in an query-able database and each > row has a unique id. > > -- > Marc I have come across NDO before, but unfortunately I cannot run MySQL in the production environment, and so I have to find a different solution to this problem. I found an NDOUtils Oracle, but I believe that it is still in a pre-alpha state, and so probably not suitable for a production environment with thousands of checks occurring. Chris -- ___ 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] Uniquely Identifiable Events in Nagios.log?
On Mar 26, 2009, at 9:22 AM, Christopher McAtackney wrote: > Hi all, > > I was wondering if it is possible to configure Nagios to produce > uniquely identifiable entries in the nagios/var/nagios.log file? No, the log format isn't configurable. > Or any other suitable solution to the general problem of > identifying log entries? NDO seems like a good fit. It's all in an query-able database and each row has a unique id. -- Marc -- ___ 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] Uniquely Identifiable Events in Nagios.log?
Hi all, I was wondering if it is possible to configure Nagios to produce uniquely identifiable entries in the nagios/var/nagios.log file? The reason I ask, is that I would like to parse this log file for service check results and perform further processing based on the values discovered there. The trouble is, that as far as I can see, Nagios uses a time-stamp which is only accurate to the second, and so my log files have lines which all have the same time-stamp. Is there a way to increase the accuracy of this time-stamp perhaps? Or any other suitable solution to the general problem of identifying log entries? Cheers, Chris -- ___ 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
