Ruby on rails，乘客握手错误

Question

有什么线索为什么我在尝试使用apache / passenger / mysql应用程序时会出现以下错误，而使用webtrick可以正常运行？

[ 2013-05-12 01:39:31.3313 26429/7f0535e4b700 Pool2/Implementation.cpp:762 ]: Could not spawn process for group /home/ruby/work/depot#default: An error occurred while starting up the preloader: it did not write a handshake message in time.
 in 'void Passenger::ApplicationPool2::SmartSpawner::throwPreloaderSpawnException(const std::string&, Passenger::SpawnException::ErrorKind, Passenger::ApplicationPool2::Spawner::BackgroundIOCapturerPtr&, const Passenger::ApplicationPool2::Spawner::DebugDirPtr&)' (SmartSpawner.h:149)
 in 'std::string Passenger::ApplicationPool2::SmartSpawner::negotiatePreloaderStartup(Passenger::ApplicationPool2::SmartSpawner::StartupDetails&)' (SmartSpawner.h:539)
 in 'void Passenger::ApplicationPool2::SmartSpawner::startPreloader()' (SmartSpawner.h:205)
 in 'virtual Passenger::ApplicationPool2::ProcessPtr Passenger::ApplicationPool2::SmartSpawner::spawn(const Passenger::ApplicationPool2::Options&)' (SmartSpawner.h:743)
 in 'void Passenger::ApplicationPool2::Group::spawnThreadRealMain(const Passenger::ApplicationPool2::SpawnerPtr&, const Passenger::ApplicationPool2::Options&, unsigned int)' (Implementation.cpp:695)

[ 2013-05-12 01:39:31.3315 26429/7f053688d700 agents/HelperAgent/RequestHandler.h:1884 ]: [Client 20] Cannot checkout session. An error occurred while starting up the preloader: it did not write a handshake message in time.

Answer 1

对我而言，帮助取消对/ etc / profile的访问-检查您是否在那里或bashrc / bash_profile等中没有阻止调用。旅客正在生成bash进程来启动应用程序，并且正在读取profile / rc。 我知道答案太晚了，但也许会对某人有所帮助。