Script timed out before returning headers: wsgi.py on elastic beanstalk

Question

I\'m trying to deploy a Django application to Elastic Beanstalk. When I visit the page it never loads. The logs say:

Script timed out before returning header         


        

Answer 1

I had this problem until I realized that I was using a different Python version. Let me explain this. I was using a CentOS 7. The default Python version in CentOS 7 is Python 2.7, but my code use Python 3.6, so I installed Python 3.6 in the same machine by doing this:

sudo yum install centos-release-scl
sudo yum install rh-python36 rh-python36-python-pip rh-python36-python-virtualenv
scl enable rh-python36 bash

Then created a virtual environment and used it in WSGI:

    WSGIScriptAlias   / /var/www/myproject/myproject/wsgi.py
    WSGIDaemonProcess myproject python-home=/var/www/myproject python-path=/var/www/myproject:/var/www/myproject/lib/python3.6/site-packages
    WSGIProcessGroup  myproject    

And the "script timed out" problem appeared. Then I realize that the mod_wsgi.so was compiled against libpython2.7.so.1.0.

# ldd /usr/lib64/httpd/modules/mod_wsgi.so
linux-vdso.so.1 =>  (0x00007ffd3fcae000)
libpython2.7.so.1.0 => /lib64/libpython2.7.so.1.0 (0x00007f1240cd4000)
libpthread.so.0 => /lib64/libpthread.so.0 (0x00007f1240ab8000)
libdl.so.2 => /lib64/libdl.so.2 (0x00007f12408b3000)
libutil.so.1 => /lib64/libutil.so.1 (0x00007f12406b0000)
libm.so.6 => /lib64/libm.so.6 (0x00007f12403ae000)
libc.so.6 => /lib64/libc.so.6 (0x00007f123ffe0000)
/lib64/ld-linux-x86-64.so.2 (0x00005598a5aac000)

The solution was removing mod_wsgi package and installing rh-python36-mod_wsgi package.

Best regards!