Amazon + Django each 12 hours appears that [Errno 5] Input/output error

Question

I recently setup and deploy an Amazon EC2 instance for deploy my django project.

I was interacting with my application via browser when I get this error in the browser:

Answer 1

some possible causes and suggestions for this problem.

Causes:

1. circular references
2. hard disk bad sector error
3. complex process, user, network, permission and other raise mixed error

Suggestions:

1. use logging replace print, it is best way!!!
2. redirect IO to a file or to null: python test.py > test.log 2>&1 &, python test.py > /dev/null 2>&1 &