Re: AW: AW: [Nagios-devel] Nagios 2.0b4 restart issue

[Andreas E. <ae...@op...>]

Husch Andreas wrote:
>>>there are many possible causes for Error 127, but in Nagios 2.x the 
>>>most common problem is that two Nagios instances are running at the 
>>>same time!
>>
>>
>>No it's not. Multiple instances has absolutely nothing to do with what
> 
> the shell returns when asked to run a program. In this case, it does
> 
>>	result = execve(argv[0], argv, envp);
>>	/* execve() only returns on errors, so hint what went wrong */
>>	exit (-errno);
>>
>>and since ENOENT == 2 this results in a return code of -127 on all
> 
> architectures that implement the two-complement bit pattern.
> 
> Hi Andreas,
> 
> thats right. But there are cases where the useres get Error 127 when
> they reload with the init script. If they do a clean stop and start, the
> error is gone away.  


That's as may be, but unless the init-script does funny things with the 
resource.cfg file it can't possibly be related.


> Im not really a C coder an i had no look at the source for this (which i
> should had), but maybe $USER1$ ist not filled right in this cases?


Supposing it reads config from the same files it will be set identically 
(so long as no-one has made any changes, but then those changes would 
show up even if just one process was running).


> So
> the Path to the plugin is wrong and as a result we get Error 127 from
> the shell. Just a stupid guess.
> 
> btw: I've done a test on my 2.0b3 production system (if this is fixed in
> a newer version forget everything i wrote):


If you're going with the 2.0b series and want to report a bug, you 
should make sure you're running the latest from CVS before doing so. 
There's a pretty good chance that the problem has been fixed in the main 
trunk after all.


> If i hit "/etc/init.d/nagios
> reload", Nagios immediately detects my hole network as DOWN because ALL
> checks result in an error 127. If i do a clean stop and start everything
> works ALLWAYS fine.
> 

Something else is broken on that system. I can't say what it is without 
looking at it fairly closely but I have neither interest nor intention 
of doing so.

-- 
Andreas Ericsson                   and...@op...
OP5 AB                             www.op5.se
Tel: +46 8-230225                  Fax: +46 8-230231