Jarrod Sayers wrote:
On 03/01/2008, at 1:56 AM, Tom Judge wrote:
I have also seen this issue, but have always put it down to the way that
we manage our nagios deployments with cfengine. I will try to deploy
this change and monitor for the problem to see if it persists.
I hope I can confirm your frustrations. There is a threading issue with
Nagios when it's binaries are linked against libpthread(3) threading
library, the default on recent FreeBSD 5.x releases and all 6.x
releases. The issue is random and extremely difficult to track down with
the symptoms being a second Nagios process sitting on the system hanging
a CPU. Be rest assured that I have been working on it, and have seen it
on one system of mine.
Not sure if this is related at all but out of the 3 nagios deployments
we have here I have only ever seen it on one (It currently has 2 nagios
threads spinning CPU time atm).
The differences on that server are:
* It is amd64 compared to i386
* It also runs ndo2db from ndoutils 1.4b7
All the systems run 6.2-RELEASE-p5 and nagios-2.9_1, they are also all
patched with gnu libltdl patch below.
Don't know if that info is of any use to you.
Changes have been submitted for net-mgmt/nagios-devel (aka Nagios
3.0.r1)) to force the build process to link against libthr(3) where
available, removing the need to map libpthread() out with
/etc/libmap.conf. If this goes well, as stated in the PR, i'll
back-port it to net-mgmt/nagios (aka Nagios 2.10) in the next few days.
If anyone out there is running net-mgmt/nagios-devel and feels like
trying it for me, see ports/119246 and drop me an email with a before
and after "ldd /usr/local/bin/nagios".
On a side note if you want to use broker modules with nagios from port
you need to change the following in the port Makefile in order to make
them load properly:
From:
USE_AUTOTOOLS= autoconf:259
To:
SE_AUTOTOOLS= autoconf:259 libltdl:15
I sent an email to the maintainer but got no response and my email did
not seem to have affected the last commit to upgrade to 2.10
I did receive that email and the changes went in with the last commit of
net-mgmt/nagios-devel to test. No issues have arisen so i'll be
back-porting it to net-mgmt/nagios soon for you. There also has been a
rather large ports freeze which delayed the upgrade to Nagios 2.10, that
PR was submitted on the 1st of November and committed on the 13th of
December. Unfortunately your email fell somewhere in the middle,
apologies for not letting you know.
Thanks for this, I currently maintain the patch on our build servers.
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