I'm wondering about Heroku server status and can't find any documentation about this topic.
Example:
Process exited with status 143
Can anyone explain this example? And where would I find resources for future reference?
Exit code 143 means that your process was terminated by a SIGTERM. This is generally sent when you do any commands that require your dynos to restart (config:set, restart, scale down...).
It is an idle state when it does not receive any request for a while. When it receives a request it will start again.
来源：https://stackoverflow.com/questions/15767685/understanding-heroku-server-status-143