Memory leak in NDOUtils 1.4b7?

[Steffen Poulsen]

Hi,

We are now at Linux and 3.0rc2, but we are still experiencing this problem.

Every time we send a -HUP to the Nagios process, it grows by ~5 megabytes (when NDO is activated).

Best regards,
Steffen Poulsen
 

> -----Oprindelig meddelelse-----
> Fra: nagios-devel-bounces at lists.sourceforge.net 
> [mailto:nagios-devel-bounces at lists.sourceforge.net] På vegne 
> af Steffen Poulsen
> Sendt: 26. januar 2008 14:11
> Til: Nagios Developers List
> Emne: [Nagios-devel] Memory leak in NDOUtils 1.4b7?
> 
> Hi,
> 
> After yesterdays luck installing NDO, unfortunately we experienced a
> problem with our nagios process tonight - apparently related 
> to a memory
> leak in NDO.
> 
> We have put up a memory usage graph at:
> 
> http://www.forskernet.dk/nagios/ndo_memory_leak.png
> 
> As can be seen in the graph, after NDO installation memory 
> usage for the
> nagios process starts growing (from ~30mb to ~120mb / straight line).
> 
> At this point a restart of the nagios process is triggered, but
> afterwards processing just halts. We tried to wake it up, 
> restarting it
> a few times - but the flow of checks had stopped and we had no luck
> restarting it (external commands appeared to be processed OK, but no
> passive checks showed up in performance info).
> 
> After removing NDO, things are back to normal.
> 
> A regular performance view for the process is like this (40k+ passive
> checks/5 min):
> 
> Check Statistics: 
> Type Last 1 Min Last 5 Min Last 15 Min 
> Active Scheduled Host Checks 0 0 0 
> Active On-Demand Host Checks 0 0 0 
> Parallel Host Checks 0 0 0 
> Serial Host Checks 0 0 0 
> Cached Host Checks 0 0 0 
> Passive Host Checks 0 0 0 
> Active Scheduled Service Checks 0 1 3 
> Active On-Demand Service Checks 0 0 0 
> Cached Service Checks 0 0 0 
> Passive Service Checks 8747 43064 129047 
> External Commands 8984 43301 129287 
>  
> Buffer Usage:
> Type In Use Max Used Total Available 
> External Commands  0 2476 81920 
> 
> We are running Solaris SPARC, Nagios v3.0rc1 and NDOUtils v1.4b7.
> 
> I haven't seen other reports mentioning this, but if this is a known
> error, excuses in advance. Actually, also as I'm writing this now I am
> getting aware that NDOUtils is mentioned as compatible with 3.0b6 only
> (at the Nagios download page) - I hope it should be OK to run NDOUtils
> with rc1(?).
>  
> Best regards,
> Steffen Poulsen 
> 
> --
>  
> Venlig hilsen
>  
> Steffen Poulsen
> Systemmanager
>  
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> 
> 
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