GAE Random Uncaught Exception Error

0
votes

I have a codeigniter app on google app engine and as I move about the application it will mostly work but I'll get these intermittent problems where I'll click on a page and it'll be completely blank with only a title in the HTML that reads:

<html><head>
<title>s~nypl-cap : uncaught application failure</title><body><pre><br></pre></body></html>

When I check the logs all I get is a 500 error that reads: "A problem was encountered with the process that handled this request, causing it to exit. This is likely to cause a new process to be used for the next request to your application. (Error code 204)"

If I refresh the page it reloads just fine. I have no clue what could be wrong any help would be appreciated.

1
phpcodeignitergoogle-app-engine
Somehow your app is crashing the runtime. Are you using any frameworks? There are known problems with ZF2 which can be fixed for now by disabling APC. - Stuart Langley
As I mentioned I'm using Codeigniter framework. I read on another post about disabling APC, but it didn't work for me. The error logs are so vague I can't figure out what could be crashing it. The error message I receive is completely intermittent. The app I have right now is little more than a hello world app so I can't see what could be crashing it. - user2744119
Do you mind to sure the code so we can investigate this issue further? Thanks. - Mars
Not at all. You can pull the source from here: github.com/aurena/CodeIgniter_on_GAE You can access the app here, you just need to login with a Gmail account. - user2744119

1 Answers

0
votes

"App Engine cannot have more than 12 concurrent connections to a Cloud SQL instance". So, you need to close the any established connections before processing a request. If you do not do this it will cause a leak may eventually new connection to fail. And that could be one of the reason why you are getting 204 error. So in your "database.php" file in Production (App Engine Cloud SQL) DB Settings section can you change the line $db['production']['pconnect'] = TRUE; to $db['production']['pconnect'] = FALSE; and see if it works or not.