构建和部署成功，但是在Spark（Java Framework）的Heroku上没有运行任何Web进程

Question

I'm getting a no web process error even though the project was built and deployed successfully. Here's my Procfile to specify how to run my java spark app.

 java -jar target/simplenlg-0.0.1-SNAPSHOT-jar-with-dependencies.jar 

I've also used foreman start to check to see if it's running and yes it's working.

Here's my code that'll determine the port

static int getHerokuAssignedPort() {
    ProcessBuilder processBuilder = new ProcessBuilder(); 
    if (processBuilder.environment().get("PORT") != null) {
        return Integer.parseInt(processBuilder.environment().get("PORT"));
    }
    return 4567;
}

I've followed this tutorial but it's still not working for me...

https://sparktutorials.github.io/2015/08/24/spark-heroku.html https://gist.github.com/jesperfj/1222739
https://gist.github.com/Fitzsimmons/2490382

Answer 1

I'm not sure what happened but I followed this No web processes running Error - Deploying Django on Heroku .

heroku scale web=1

Then do another mvn heroku:deploy and now it works.