How to solve [Errno 11] Resource temporarily unavailable using uwsgi + nginx
You can increase 'listen' value in uwsgi configure file. 
The default value is 100 which is too small.
I am using uwsgi with this configuration :

net.core.somaxconn = 1024
net.core.netdev_max_backlog=1000

I got resource temporarily unavailable issue. How to resolve this issue?

df -h
  Filesystem      Size  Used Avail Use% Mounted on /dev/xvda1    
7.8G  2.1G  5.6G  28% / devtmpfs
1.9G   12K  1.9G   1% /dev tmpfs
1.9G   16K  1.9G   1% /dev/shm