Issue #1689 has been updated by aionica.

ohadlevy wrote:
> jamtur01 wrote:
> > I don't see know this could be a Puppet issue?  I have never seen this - 
> > nor can I replicate it.  Has it re-occurred?
> 
> I've seen it before, usually when connecting to a network where puppet 
> resolves but its not the correct certificate (e.g. were signed by another 
> puppetmaster)
> 
> It took me a while to see that puppet is abusing my network (learned it only 
> when my home router cpu increased because of so many dns requests)

Since the initial setup i had two occurrences that i know of. I'm 100% sure the 
certificates were ok, we have only one puppetmaster and we already have a 
procedure for installation of new nodes so things should be the same on all 
nodes. 
Since i opened the ticket i didn't notice new occurences but as said it's hard 
to spot them. I don't want to leave query log enabled on the dns server as last 
time it filled up all of the disk space (30GB). On the other side if it happens 
one way to spot it is by the size of the log files (we do network logging so 
all logs are in one place to check).

If it's not a puppet issue than what could it be ? From my point of view i'm 
sure it's not the dns system at least as queries are answered by the servers 
but something happens on the client. It guess it may be Puppet or some 
component from Ruby. 

In the mean time i started to add more clients to the setup (and a second 
caching dns server to cope with possible problems).

I'll get back when i have news.
----------------------------------------
Bug #1689: Hundreds of log messages a second because of dns resolution
http://projects.reductivelabs.com/issues/show/1689

Author: aionica
Status: Needs more information
Priority: Normal
Assigned to: 
Category: unknown
Target version: 
Complexity: Unknown
Affected version: 0.24.5
Keywords: 


Hello,
I have a puppet installation with one master and around 20 clients. 
The problem appeared until now twice, and it seems to be related to dns 
resolution and it's generating around 700 log messages / second in syslog. In 
80 minutes it generated 3070322 log lines which is huge.
The problem went away by itself as it appeared (i didn't do anything to fix it) 
and i discovered it because of the huge log size.
OS/Distro running on master and clients is Debian Etch, kernel 2.6.18-6, Facter 
version 1.5.1 , Puppetd 0.24.5 (Debian package versions are: 1.5.1-0.1 for 
Facter and 0.24.5-2 for Puppet, both taken from testing/Lenny branch) and Ruby 
version is 1.8.2 (Debian Etch/Stable package).

I pasted below the log entries taken from syslog.
<pre>
Oct 21 10:32:18 localhost puppetd[17738]: Reopening log files
Oct 21 10:32:18 localhost puppetd[17738]: Could not find server puppet: 
getaddrinfo: Name or service not known
Oct 21 10:32:18 localhost puppetd[17738]: Could not request certificate: 
Certificate retrieval failed: Could not find server puppet
Oct 21 10:32:18 localhost puppetd[17738]: Could not find server puppet: 
getaddrinfo: Name or service not known
Oct 21 10:32:18 localhost puppetd[17738]: Could not request certificate: 
Certificate retrieval failed: Could not find server puppet
Oct 21 10:32:18 localhost puppetd[17738]: Could not find server puppet: 
getaddrinfo: Name or service not known
Oct 21 10:32:18 localhost puppetd[17738]: Could not request certificate: 
Certificate retrieval failed: Could not find server puppet
Oct 21 10:32:18 localhost puppetd[17738]: Could not find server puppet: 
getaddrinfo: Name or service not known
Oct 21 10:32:18 localhost puppetd[17738]: Could not request certificate: 
Certificate retrieval failed: Could not find server puppet
Oct 21 10:32:18 localhost puppetd[17738]: Could not find server puppet: 
getaddrinfo: Name or service not known
</pre>
additional 3070300 lines with the same thing
<pre>
Oct 21 11:52:22 localhost puppetd[17738]: Could not find server puppet: 
getaddrinfo: Name or service not known
Oct 21 11:52:22 localhost puppetd[17738]: Could not request certificate: 
Certificate retrieval failed: Could not find server puppet
Oct 21 11:52:22 localhost puppetd[17738]: Could not find server puppet: 
getaddrinfo: Name or service not known
Oct 21 11:52:22 localhost puppetd[17738]: Could not request certificate: 
Certificate retrieval failed: Could not find server puppet
Oct 21 11:52:22 localhost puppetd[17738]: Could not find server puppet: 
getaddrinfo: Name or service not known
Oct 21 11:52:22 localhost puppetd[17738]: Could not request certificate: 
Certificate retrieval failed: Could not find server puppet
Oct 21 11:52:22 localhost puppetd[17738]: Could not find server puppet: 
getaddrinfo: Name or service not known
Oct 21 11:52:22 localhost puppetd[17738]: Could not request certificate: 
Certificate retrieval failed: Could not find server puppet
Oct 21 11:52:30 localhost puppetd[18465]: Creating default schedules
Oct 21 11:52:30 localhost puppetd[18465]: Failed to load library 'ldap' for 
feature 'ldap'
Oct 21 11:52:30 localhost puppetd[18465]: 
(/Settings[/etc/puppet/puppetd.conf]/Settings[puppetd]/File[/etc/puppet/puppet.conf])
 Autorequiring File[/etc/puppet]
</pre>
The weird thing is that in the end it got the manifest file and ran it.
I doubt that dns wasn't working for 80 minutes withing the network as we would 
have had a lot of rings and bells announcing this but even if the dns was dead 
the puppetd daemon shouldn't do this.

I mentioned above that we had this issue two times in two weeks since running 
puppet. The first time we had it i also (by chance) had the query log enabled 
on the dns server and i saw thousands of queries for the puppetmaster server, 
each query was answerd. I fixed this then by killing puppetd and starting it 
again on the client. The second time the issue appeard(the issue described 
above) the query log was disabled.

I will also paste the client and server config below, the only thing changed is 
the domain name , to foo.bar.com  :

Client config(puppetd.conf):
<pre>




[puppetd]
logdir=/var/log/puppet
vardir=/var/lib/puppet
rundir=/var/run/puppet
server = puppetmaster.foo.bar.com
usecacheonfailure = false
runinterval = 900
report = true
listen = true
</pre>
Puppetmaster config options are passed as parameters to puppetmasterd, the 
parameters are:
<pre>
--templatedir=/etc/puppet/manifests/templates
[EMAIL PROTECTED]
--reports=tagmail,store,rrdgraph
--rrdgraph 
--reportdir=/var/www/reports/puppetreports
--rrddir=/var/www/reports/rrd
--certname=puppetmaster.foo.bar.com
--logdir=/var/log/puppet 
--vardir=/var/lib/puppet 
--rundir=/var/run/puppet 
--rrdinterval=900 
--runinterval=900
</pre>


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