Passenger Error

[Sarah Pham]

Hi,

I Installed Ruby 1.8.7 (Passenger 4.0.45) and Redmine 2.4, all this was working well. But after I updated ruby to 2.0.0 by rvm (Passenger 4.0.37), I cannot open my Redmine. It shows this error in /var/log/httpd/error_log

Could not spawn process for group /home/redmine#default: An error occurred while starting up the preloader. It exited before signalling successful startup back to Phusion Passenger.
     in 'void Passenger::ApplicationPool2::SmartSpawner::throwPreloaderSpawnException(const std::string&, Passenger::SpawnException::ErrorKind, Passenger::ApplicationPool2::Spawner::BackgroundIOCapturerPtr&, const Passenger::ApplicationPool2::Spawner::DebugDirPtr&)' (SmartSpawner.h:146)
     in 'std::string Passenger::ApplicationPool2::SmartSpawner::negotiatePreloaderStartup(Passenger::ApplicationPool2::SmartSpawner::StartupDetails&)' (SmartSpawner.h:590)
     in 'void Passenger::ApplicationPool2::SmartSpawner::startPreloader()' (SmartSpawner.h:206)
     in 'virtual Passenger::ApplicationPool2::ProcessPtr Passenger::ApplicationPool2::SmartSpawner::spawn(const Passenger::ApplicationPool2::Options&)' (SmartSpawner.h:752)
     in 'void Passenger::ApplicationPool2::Group::spawnThreadRealMain(const Passenger::ApplicationPool2::SpawnerPtr&, const Passenger::ApplicationPool2::Options&, unsigned int)' (Implementation.cpp:804)

[ 2014-03-04 17:43:40.8274 19839/7f15d6d72700 agents/HelperAgent/RequestHandler.h:2088 ]: [Client 20] Cannot checkout session.
Error page:
An error occurred while starting up the preloader. It exited before signalling successful startup back to Phusion Passenger. Please read <a href="https://github.com/phusion/passenger/wiki/Debugging-application-startup-problems">this article</a> for more information about this problem.<br>
<h2>Raw process output:</h2>
(empty)

I read this artical https://github.com/phusion/passenger/wiki/Debugging-application-startup-problems but can't fix the problem.

Could you please help?

[Tinco Andringa]

Hi Sarah,

Have you tried increasing passenger_start_timeout to more than 90
seconds, like for example 300 seconds? It is nearly always that
problem. Is your resource usage (cpu/memory) within bounds when you
start the application?

Kind regards,
Tinco

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[Sarah Pham]

Hi,

Thanks for your answer.

This is just our testing server , the resource usage is still winthin bounds. I updated passenger_start_timeout to 300 but the error still exists.

Could you check Passenger Debug Log help me?

Thank you so much.

Sarah

[Tinco Andringa]

Hi Sarah,

Sorry for the (very) late reply. I could not detect any weird
behaviour in the log. Have you found out what caused the problem in
the meanwhile?

Kind regards,
Tinco

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