My 3.4.3 puppet master on RHEL6.5 is using apache+passenger (4.0.39). As I've added more agents, I've increasingly hit situations where I get numerous errors from the web server. The problem shows up as errors on file resources from agents such as this: Error 503 on SERVER: <h1>This website is under heavy load</h1><p>We're sorry, too many people are accessing this website at the same time. We're working on this problem. Please try again later.</p> Could not retrieve file metadata for puppet:///modules/foo/etc/cron.d/foo: Error 503 on SERVER: <h1>This website is under heavy load</h1><p>We're sorry, too many people are accessing this website at the same time. We're working on this problem. Please try again later.</p> I used the default passenger settings recommended in the Puppet Pro 2nd Edition book, and have since increased the values thinking it would help, but it hasn't. Here's the relevant apache settings: LoadModule passenger_module /usr/lib/ruby/gems/1.8/gems/passenger-4.0.39/buildout/apache2/mod_passenger.so PassengerRoot /usr/lib/ruby/gems/1.8/gems/passenger-4.0.39 PassengerDefaultRuby /usr/bin/ruby PassengerHighPerformance On PassengerMaxPoolSize 20 PassengerMaxRequests 3000 PassengerPoolIdleTime 600 Any help is appreciated. -- You received this message because you are subscribed to the Google Groups "Puppet Users" group. To unsubscribe from this group and stop receiving emails from it, send an email to puppet-users+unsubscribe@googlegroups.com. To view this discussion on the web visit https://groups.google.com/d/msgid/puppet-users/d9d32ad8-daf7-4a96-95b2-f16a76ba24b1%40googlegroups.com. For more options, visit https://groups.google.com/d/optout.