I’ve added some debugging messages to run_event_loop and figured out what
was going on. I’m going to reference line numbers in
https://github.com/puppetlabs/puppet/blob/master/lib/puppet/daemon.rb to
make it easier on me to explain. I found that occasionally the “if”
statement on line 180 was failing because the value of “now” was one second
behind “next_reparse”. I believe this is because line 168 uses “to_i” when
it should use “ceil”. I’m deploying a patched version of puppet with this
change to my servers now.
But I think a bigger issue is line 175 where next_event is set to the
current time plus one hour. That’s a pretty arbitrary and unpleasant value.
Why not set next_event to the lower vale of :runinterval or :filetimeout?
The way it is now, if line 180 fails, you’re stuck with an hour long wait
even though your :runinterval may be far less.
Also, line 197 is backwards. It should be “next_agent_run +=
new_run_interval – agent_run_interval”.
On Tuesday, December 18, 2012 7:00:42 PM UTC-5, David Mesler wrote:
>
> I've noticed when I strace a puppet agent that has failed to run after its
> 900 second runinterval, it's blocking on a really long select call. Like:
> select(1, [], [], [], {1032, 350000} <unfinished ...>
>
> When that's done it finally re-reads pupet.conf and stars a catalog run. I
> have no idea where that long select call comes from.
>
> On Friday, December 14, 2012 3:15:25 PM UTC-5, David Mesler wrote:
>>
>> I've recently upgraded from 2.6.9 to 3.0.1 and have noticed an oddity.
>> Our puppet agents are configured with a runinterval of 900 and a splaylimit
>> of 450. Since upgrading I've noticed that once or twice a day our puppet
>> agents simply won't run for about an hour or so. Has anyone else
>> experienced anything like this?
>>
>> --david
>>
>
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