http-upstream-log #
The ngx_http_upstream_log_module module writes upstream request logs in the specified format, like ngx_http_log_module. Most of the work of this module originates from ngx_http_log_module.
Source: upstream source
Directives
upstream_log #
syntax: upstream_log path [format [buffer=size] [gzip[=level]] [flush=time] [if=condition]]; upstream_log off; · default: -; · context: http, server, location, if in location, limit_except
If either the buffer or gzip parameter is used, writes to log will be buffered. When buffering is enabled, the data will be written to the file: Example: The file path can contain variables, but such logs have some constraints:
Example
http {
log_format access '$remote_addr - $remote_user [$time_local] "$request" '
'$status $body_bytes_sent "$http_referer" '
'"$http_user_agent" "$http_x_forwarded_for"';
log_format upstream '$remote_addr $upstream_last_addr [$time_local] "$upstream_method $upstream_uri" '
'$upstream_last_status $upstream_last_response_length $upstream_last_bytes_sent $upstream_last_bytes_received '
'$upstream_last_connect_time $upstream_last_header_time $upstream_last_response_time';
upstream cluster {
server 192.168.0.1:80;
server 192.168.0.2:80;
}
server {
listen 80;
access_log logs/access.log access;
upstream_log logs/upstream.log upstream;
location / {
proxy_pass http://cluster;
}
}
}