Error r10 boot timeout web process failed to bind to port within 60 seconds of launch

error r10 boot timeout web process failed to bind to port within 60 seconds of launch

If you are trying to run your Node.js web app on Heroku, you may run into this error: “Error R10 (Boot timeout) -> Web process failed to bind to $PORT within 60 seconds of launch”. There are a couple of possible causes for this error message.

The first is that the port number that you are trying to use is already in use by another program. You can check if the port is already in use by running the following command: lsof -i : PORTNUMBER

If the port is in use, you will see something like this: COMMAND PID USER FD TYPE DEVICE SIZE/OFF NODE NAME
node 28608 my username 4u IPv4 0xdeadbeef 0t0 TCP *: PORTNUMBER (LISTEN)

The second possibility is that your web app is taking too long to start up. This can happen if you have a lot of dependencies that need to be loaded or if you are doing a lot of processing on startup. To fix this, you can increase the amount of time Heroku gives your web app to start up by setting the WEB_CONCURRENCY environment variable.

What is error r10 boot timeout web process failed to bind to port within 60 seconds of launch?

Error r10 boot timeout web process failed to bind to port within 60 seconds of launch is an error that can occur when starting up a web server. It means that the web server was not able to bind to the port within the required time. This can happen for a number of reasons, but it is most likely due to either a firewall blocking the port or another process is already using the port.

How to fix error r10 boot timeout web process failed to bind to port within 60 seconds of launch?

Error r10 boot timeout web process failed to bind to port within 60 seconds of launch is a very common error for Heroku users. This error means that your web process was not able to bind to a port within 60 seconds of launch.

There are a few different ways to fix this error, but the most common solution is to simply increase the amount of time that Heroku allows for your web process to bind to a port.

To do this, you will need to add the following line to your Procfile:

web: bundle exec thin start -p $PORT -t 60

This will increase the amount of time that Heroku allows your web process to bind to a port from 30 seconds to 60 seconds.