What does Phusion Passenger do?

Phusion Passenger® is an open source web application server. It handles HTTP requests, manages processes and resources, and enables administration, monitoring and problem diagnosis. Passenger is very easy to use, makes deploying in production much easier and is scalable.

Does Passenger use Nginx?

Passenger is a standalone server. It means, it was designed to run on a single machine. You can’t balance working of two passenger servers the way you can with Apache/Nginx. You can run only single application on given machine with Passenger.

What is Passenger Nginx?

The Passenger Nginx module registers Passenger-specific configuration options inside Nginx. You, the administrator, configure Passenger by adding Passenger-specific configuration options to the Nginx configuration file. Restart or reload Nginx to apply any configuration changes.

Is Passenger multi threaded?

Multithreaded scenarios In order to use multithreading you must use Passenger Enterprise. The open source version of Passenger does not support multithreading.

What is passenger watchdog?

Passenger Focus is the independent passenger watchdog, set up by the government to represent the interests of Britain’s rail passengers, bus and tram passengers in England (outside of London) and passengers on scheduled domestic coach services in England.

What is Ruby Gem passenger?

30. A modern web server and application server for Ruby, Python and Node. js, optimized for performance, low memory usage and ease of use.

Where is the Passenger log file?

By default, the Passenger log file is the global (not the per-vhost) Apache error log file. This is typically located in /var/log/apache2/error_log . You can find out the exact location of the error log by running passenger-config –detect-apache2 .

How do you find a Passenger root?

There’s is a command passenger-config –root which shows Passenger’s root. All other config should be in the Apache or Nginx config file, which means in sites-enabled/your_site . Show activity on this post. You configure Phusion Passenger through the Apache configuration file, just like with any other Apache module.

What is Passenger application server?

Passenger® is an app server that runs and automanages your web apps with ease. Also improves security, reliability and scalability.

What is Passenger in Apache?

It is designed to integrate into the Apache HTTP Server or the nginx web server, but also has a mode for running standalone without an external web server. Phusion Passenger supports Unix-like operating systems, and is available as a gem package, as a tarball, or as native Linux packages.

Does Ruby have a Gil?

Ruby MRI and CPython are two of the most common examples of popular interpreters that have a GIL.

Is Ruby on Rails multithreaded?

These mechanisms all involve multiple threads, each managing work for a unique instance of some object (controller, job, channel), while sharing the global process space (such as classes and their configurations, and global variables).

What is Mod_passenger?

mod_passenger enables Phusion Passenger to host Ruby, Python, and Node. js apps on the Apache server. Phusion Passenger specializes in managing these types of apps by restarting them in the case of an app crash, keeping heavy-resource usage in check, and more.

What is Passenger watchdog?

What is Passenger library?

Welcome to the Passenger Library, a comprehensive online resource about Ruby, Python and Node. js deployment, administration, scaling, high availability and more — through the use of the Phusion Passenger application server. The entire library is open source.

Does passenger use log4j?

Passenger has no components written in Java and thus does not use log4j. As such, it is not affected by the log4j vulnerabilities (CVE-2021-45046 & CVE-2021-44228, or any subsequently discovered issues with log4j).

Where are Nginx logs located?

By default, the access log is located at /var/log/nginx/access. log , and the information is written to the log in the predefined combined format. You can override the default settings and change the format of logged messages by editing the NGINX configuration file ( /etc/nginx/nginx.

What is passenger in Apache?

What is passenger library?

Does C# have GIL?

C# does not have an equivalent of GIL to Python.

How does Nginx work with passenger?

During Nginx startup, Passenger will send a dummy HEAD request to the given URL and discard the result. In other words, Passenger simulates a web access at the given URL.

How does Nginx handle as-is responses?

By default, all responses are sent as-is from the application or from the Passenger core. If you turn this option on then Nginx will be able to handle such responses using the Nginx error_page option. Responses with status codes that do not match an error_page option are sent as-is.

How do I set nginx to root from passenger?

If you installed Passenger through source tarball or by cloning it from the Passenger Github repository, then the value should be the path to the Passenger directory. Once you have obtained the value, open your Nginx configuration file and insert a passenger_root option somewhere with that value.

How does the header interpolation work in Nginx?

Nginx variables in the value are interpolated. Headers set by this option cannot be spoofed by the client. Passenger/Nginx will not forward any client-supplied headers with the same names. In each new context (e.g. in each new location block), you must re-specify passenger_set_header. Values set in parent contexts have no effect on subcontexts.