Akousatoo many open filesNginx has reached the maximum number of open file descriptors.
The worker_rlimit_nofile limit or the system's file descriptor limit has been exceeded. Each connection uses at least one file descriptor.
Increase worker_rlimit_nofile in nginx.conf. Raise the system limit with ulimit -n or /etc/security/limits.conf. Reduce the number of concurrent connections.
# In nginx.conf
worker_rlimit_nofile 65535;
# Also increase system limits
# /etc/security/limits.conf
# nginx soft nofile 65535invalid PID numberThe Nginx PID file contains an invalid process ID.
an upstream response is buffered to a temporary fileThe upstream response is being buffered to disk because it exceeds memory buffers.
429 Too Many RequestsThe client has sent too many requests in a given time period.
503 Service UnavailableThe server is temporarily unable to handle the request.
413 Request Entity Too LargeThe request body exceeds the maximum size allowed by Nginx.
bind() to 0.0.0.0:80 failed (98: Address already in use)Nginx cannot bind to the requested address and port.