passenger problems with upgraded rails-app

Posted Over 8 years ago. Visible to the public.

You may encounter problems with passenger starting an application with an updated rails.
If you find an error like this in the apache error log:

[ 2015-08-21 10:53:04.1266 17680/7f4909bf7700 Pool2/Implementation.cpp:883 ]: Could not spawn process for group /var/www/example.com/current#default: An error occured while starting up the preloader.
     in 'void Passenger::ApplicationPool2::SmartSpawner::handleErrorResponse(Passenger::ApplicationPool2::SmartSpawner::StartupDetails&)' (SmartSpawner.h:455)
     in 'std::string Passenger::ApplicationPool2::SmartSpawner::negotiatePreloaderStartup(Passenger::ApplicationPool2::SmartSpawner::StartupDetails&)' (SmartSpawner.h:566)
     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 SpawnerPtr&, const Passenger::ApplicationPool2::Options&, unsigned int)' (Implementation.cpp:804)

[ 2015-08-21 10:53:04.1273 17680/7f4907ae7700 agents/HelperAgent/RequestHandler.h:2210 ]: [Client 19] Cannot checkout session.
Error page:
This application is a Rails 3 application, but it was wrongly detected as a Rails 1 or Rails 2 application. This is probably a bug in Phusion Passenger, so please report it.

!> Error

You have to restart the apache webserver. It seems that passenger does not apply all new settings/informations about the application correctly if you just reload apache or restart the passenger app.

Claus-Theodor Riegg
makandra.com
Say thanks1
Last edit
Over 8 years ago
Claus-Theodor Riegg
License
Source code in this card is licensed under the MIT License.

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Posted by Claus-Theodor Riegg to makandra dev (2015-08-21 09:50)
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