Nagios disfunctional , perhaps due to time change ?

[Matthias Flacke]

Ton Voon wrote:
> Hi!
> 
> On 26 Oct 2009, at 10:18, Mattias Ryrlén wrote:
> 
>> This can be solved with issue the following error.
>>
>> service nagios stop; now=$(date +%s); sed -i
>> "s/^next_check=.*/next_check=$now/" /usr/local/nagios/var/status.sav;
>> service nagios start
>>
>> this will only work if:
>> 1. you can issue command 'service' :)
>> 2. you have it installed to /usr/local/nagios
> 
> We've also seen this bug.
> 
> We've provided another way of fixing this. You can find more details
> here: http://opsview-blog.opsera.com/dotorg/2009/10/nagios-scheduling-bug.html

Hi,

this change is causing the wrong reschedule:
http://nagios.cvs.sourceforge.net/viewvc/nagios/nagios/base/utils.c?r1=1.236&r2=1.237&view=patch

It has been applied on 15th of January 2009 and introduced some
statements

t->tm_isdst=-1;

into base/utils.c.

Affected are all Nagios versions >= 3.1.0.

I could reproduce it here: if the patch above is backed out, the
scheduling behaves correctly.

-Matthias

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