Heroku Internal Server Error for stroop-js psych (experiment complete)

[gal...@gmail.com]

I was successful in hosting the psiturk example via heroku, however it's not clear to me which files I need to transfer to get stroop-js psych to run on heroku. 

I transferred herokuapp.py, Procfile and set-heroku-setting.py. I adjusted the custom.py app. Everything works fine in setting up heroku (initialize git, created an app, get links for database & ad, etc.). 

The server turns on, and the ad and consent form show up in debug mode. However, once I try to continue to the experiment I get an Internal Server Error:

Any ideas on what might have happened? I assume it's a problem with the application, but how can I find out where the error occurred?

When I inspect the console of the pop up window I get: Failed to load resource: the server responded with a status of 500 (INTERNAL SERVER ERROR), which is not very informative.

Many thanks,

Gal

[Dave Eargle]

https://devcenter.heroku.com/articles/logging#log-retrieval  

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[gal...@gmail.com]

Thank you, screenshot is above.

"STOPPING ALL PROCESSES WITH SIGTERM." seems to be the point where there is a problem. Any way I can see how this is triggered?

Could this be a limitation of free dynos in heroku?

Am Mittwoch, 22. Januar 2020 00:57:13 UTC-5 schrieb Dave Eargle:

https://devcenter.heroku.com/articles/logging#log-retrieval  

On Tue, Jan 21, 2020 at 10:56 PM <gal...@gmail.com> wrote:

I was successful in hosting the psiturk example via heroku, however it's not clear to me which files I need to transfer to get stroop-js psych to run on heroku. 

I transferred herokuapp.py, Procfile and set-heroku-setting.py. I adjusted the custom.py app. Everything works fine in setting up heroku (initialize git, created an app, get links for database & ad, etc.). 

The server turns on, and the ad and consent form show up in debug mode. However, once I try to continue to the experiment I get an Internal Server Error:

Any ideas on what might have happened? I assume it's a problem with the application, but how can I find out where the error occurred?

When I inspect the console of the pop up window I get: Failed to load resource: the server responded with a status of 500 (INTERNAL SERVER ERROR), which is not very informative.

Many thanks,

Gal

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[Dave Eargle]

That log message shows that your app is running. You made a new release at 7:18, which involved the old process being killed. It booted it at 7:22, build succeeded. That log does not show any 500 SERVER ERROR logs. Those would be in your server.log, which should be being printed out to stderr if you set ON_HEROKU env var via the set-heroku-whatever.py script. Check with `heroku config`

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[gal...@gmail.com]

Thanks!

ON_HEROKU is true when I check heroku config.

server.log shows:

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[gal...@gmail.com]

Got it. Was a mistake in my config file. Sorry for the hassle. But it's educational :)

[Dave Eargle]

That's your local server.log, which means that the task wasn't working even before you attempted to get it running on heroku ;-)

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