正在运行的Heroku Java WAR应用程序现在失败：“无法访问jarfile webapp-runner-7.0.40.0.jar”

Question

Our Java WAR app - just a stateless Java web service - has been running fine for the last 3 years on Heroku but after some activity presumably initiated by Heroku on Friday:

heroku-postgresql: Update HEROKU_POSTGRESQL_RED by heroku-postgresql

the app now logs this error on a dyno restart:

2017-08-14T19:37:10.491690+00:00 heroku[web.1]: Starting process with command `${PRE_JAVA}java ${JAVA_OPTS} -jar webapp-runner-7.0.40.0.jar --port ${PORT} ${WEBAPP_RUNNER_OPTS} cv-services-1.0.0.war`
2017-08-14T19:37:12.584664+00:00 heroku[web.1]: State changed from starting to crashed
2017-08-14T19:37:12.585526+00:00 heroku[web.1]: State changed from crashed to starting
2017-08-14T19:37:12.575166+00:00 heroku[web.1]: Process exited with status 1
2017-08-14T19:37:12.503570+00:00 app[web.1]: Unable to access jarfile webapp-runner-7.0.40.0.jar

and returns a 503 (service unavailable) error.

Heroku support say the problem:

falls outside the nature of the Heroku Support policy

If you have experienced and resolved this sort of problem - especially recently - or have insight please answer.

PS

heroku info outputs:

Addons:         heroku-postgresql:dev
Auto Cert Mgmt: false
Dynos:          web: 1
Git URL:        https://git.heroku.com/xxxxxx.git
Owner:          xxxxxx@xxxxxx.com
Region:         eu
Repo Size:      0 B
Slug Size:      0 B
Stack:          cedar
Web URL:        https://xxxxxx.herokuapp.com/

Answer 1

I'm not sure exactly what the problem is, but the Heroku cedar stack (aka Cedar-10) was shutdown 2 years ago . You could follow the steps to update your app, but I think you're better off creating a new app, which you can do with the following commands:

$ heroku create
$ heroku plugins:install heroku-cli-deploy
$ heroku deploy:war cv-services-1.0.0.war

This assumes you have a copy of the cv-services-1.0.0.war file. The deploy:war command will deploy it on the latest (heroku-16) stack, with the latest Java (8), and latest Tomcat (8.5).