service_message struct size warning

[Andreas Ericsson]

Ben Polson wrote:
> When running my configuration test, I get the following output as a warning:
> 
> ----
>   nagios at varanus> ./bin/nagios -v etc/nagios.cfg
> 
>   Nagios 2.0b2
>   Copyright (c) 1999-2005 Ethan Galstad (www.nagios.org)
>   Last Modified: 02-09-2005
>   License: GPL
> 
>   Reading configuration data...
> 
>   Running pre-flight check on configuration data...
> 
>   Warning: Size of service_message struct (528 bytes) is > POSIX-guaranteed
>   atomic write size (512 bytes). Service checks results may get lost or
> mangled!

You don't have to worry. Linux goes well above the posix minimum (4096 
bytes guaranteed for atomic writes).

> ----
> 
> Can anyone help me in narrowing down how to reduce the size of my
> service_message struct to fix this?

It's not necessary, and this is a C-code thing. Judging by the tone of 
this email, you're not going to be able to fix it.

>  I checked the FAQ and did a google
> search, but couldn't find anything.  I also tried changing the definitions
> for the notify-by-email and notify-by-epager entries in the misccommands.cfg
> in hopes that they were associated with this, but that didn't work.  I am
> running 2.0b2 on SuSE Enterprise 9:
> 
>   nagios at varanus> uname -a
>   Linux varanus 2.6.5-7.151-smp #1 SMP Fri Mar 18 11:31:21 UTC 2005
>     x86_64 x86_64 x86_64 GNU/Linux
> 
> Thanks in advance for any help.
> 
> -Ben.
> 
> 
> 
> 
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-- 
Andreas Ericsson                   andreas.ericsson at op5.se
OP5 AB                             www.op5.se
Lead Developer


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