Nagios Support Forum

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Additional infos=20
from Matthias (mess) from german nagios forum. (He has mail problem at the=
=20
moment and can not post by himself)=20

***************************************************************************=
****
running the last cvs changes on our test server I noticed that=20
$HOSTADDRESS$
macro intermittently is not resolved correctly. I get numerous messages in=
=20
nagios.log

[1190372305] HOST ALERT: host1;DOWN;SOFT;1;check_icmp: Failed to resolve=20
-w
[1190372345] HOST ALERT: host1;UP;SOFT;2;OK - NNN.NNN.NNN.NNN: rta=20
0.285ms,
lost 0%

check_icmp is defined like this: $USER1$/check_icmp -H $HOSTADDRESS$ -w=20
$ARG1$
-c $ARG2$
***************************************************************************=
*****

Best regards
Thomas


P Please consider the environmental impact of needlessly printing this=20
e-mail.=20




Thomas Stolle =20
Sent by: [email protected]
21.09.2007 12:52
Please respond to
Nagios Developers List


To
[email protected]
cc
[email protected]
Subject
Re: [Nagios-devel] nagios 3 host checks logic problem on some=20
kernels/distros







Dear List=20

today I installed the new CVS to get rid of the host check logic problem=20
and the high cpu load.=20
I can confirm that load is in a normal range now but after installing CVS=
=20
someting with host- and servicechecks went terribly wrong.=20
Many checks return a critical result even if the checked system or service=
=20
is up. (I compared with a second nagios server running 2.9. Everything was=
=20
ok there.)=20
I executed the checkcommands manual from the commandline and received=20
correct values and an OK state, while Nagios said it is critical.=20

Caused by this I switched back to nagios 3.0b3. All services and hosts=20
returned to a normal state but of course CPU load is high again now.=20

Best regards=20
Thomas=20


P Please consider the environmental impact of needlessly printing this=20
e-mail.=20



Ethan Galstad =20
Sent by: [email protected]=20
20.09.2007 23:20=20

Please respond to
[email protected]; Please respond to
Nagios Developers List


To
Nagios Developers List =20
cc

Subject
Re: [Nagios-devel] nagios 3 host checks logic problem on some=20=20
kernels/distros








Thanks all - I found the cause of the problem and fixed it. A patch=20
will be in CVS shortly.

Thomas Stolle wrote:
>=20
> From: SCHAER Frederic cea.fr>
> Subject: *nagios 3 host checks logic problem on some kernels/distros*=20
> *
> Newsgroups: *=20
> *MailScanner has=20
> detected a possible fraud attempt from "news.gmane.org" claiming to be*=
=20
> *gmane.network.nagios.devel*=20
> *
> Date: 2007-09-10 16:17:30 GMT (1 week, 15 hours and 23 minutes ago) *
>=20
> *Hi, *
>=20
> * *
>=20
> *I think I identified a problem (but not and the solution) on the nagios=
=20

> 3 source tree? *
>=20
> *I tried with both the 3.0b3 and cvs HEAD source files and could not get=
=20

> rid of the problem. *
>=20
> *I?m running a 2.4.21 kernel on a RHEL3 box. *
>=20
> * *
>=20
> *What happens is that as soon as I start nagios 3, it starts eating all=
=20
> of the *CPU*. *
>=20
[snip]
>=20
> *I have 53 hosts defined, I don?t understand why nagios is checking ever=
=20

> and ever the same host? and why this is not happening on all systems. *
>=20
> * *
>=20
> *De-activating host checks magically ?solves? the problem. *
>=20
> * *
>=20
> *I just found out th

...[email truncated]...


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Original poster: [email protected]