On Apr 21, 12:19 am, Jean-Baptiste Quenot <cara...@gmail.com> wrote:
> 2009/4/6 Mike Renfro <ren...@tntech.edu>:
>
> > I'd normally expect that to work, but I just have puppet keep cron
> > running, and have a periodic cron job that checks if puppet has died,
> > and if so, restarts it:
>
> Interesting, but why would you expect Puppet to die? Would you expect
> Apache, Nginx or worse MySQL to die randomly like this?
>
> I'm a Puppet user since nearly two years now, and in the big picture
> of my web servers I find that puppetd is not the most reliable piece
> of software.  It dies every day, and my colleagues complain about this
> regularly because their installed packages are not uptodate as they
> expect.  So I have to start it again and again on all machines.  Is
> Puppetd dying because of network problems?  I believe so, but I think
> it should be fixed instead of finding creative ways to keep puppetd
> running, especially since I request it to run every 5 minutes as a
> daemon.
>
> Is anyone using puppetd in a WAN setup with default Webrick server
> successfully?  Shall I switch the HTTP server to Mongrel to gain
> reliability?  I'll test this setup.  But if puppetd fails on the
> client side, I'm not certain that changing the server's HTTP server
> would actually prevent the client to fail at all...
>
> I'm a bit eager with this, and I'm really looking forward to find a
> solution, community-wise.  Your comments are welcome.
> --
> Jean-Baptiste Quenothttp://jbq.caraldi.com/

This has already been mentioned in this thread, but I'll add my $0.02
anyway. I use puppet to manage about 500 servers, and I started having
the same scalability problems everyone else is having with Webrick:
puppetd started randomly dying on clients, IIRC when I reached around
50 nodes. I initially thought about working around it by putting
puppet into cron, I didn't want to sacrifice some of the features that
puppetd provides (scheduling, ability to monitor puppetd status from a
central location). I was also concerned that puppet might still have
problems pulling files from the fileserver with a Webrick-based
solution. I kicked Webrick to the curb and replaced it with Passenger/
Rack on my puppetmaster, using the instructions at
http://reductivelabs.com/trac/puppet/wiki/UsingPassenger. This dropped
the puppetd mortality rate on my client nodes to nearly zero, and I
get to keep using puppetd on the clients. :)
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