session_log_zone

Syntax:	`session_log_zone path zone=name:size [format=format] [timeout=time] [id=id] [md5=md5] ;`
Default:	—
Context:	`http`

Sets the path to a log file and configures the shared memory zone that is used to store currently active sessions.

A session is considered active for as long as the time elapsed since the last request in the session does not exceed the specified timeout (by default, 30 seconds). Once a session is no longer active, it is written to the log.

The id parameter identifies the session to which a request is mapped. The id parameter is set to the hexadecimal representation of an MD5 hash (for example, obtained from a cookie using variables). If this parameter is not specified or does not represent the valid MD5 hash, nginx computes the MD5 hash from the value of the md5 parameter and creates a new session using this hash. Both the id and md5 parameters can contain variables.

The format parameter sets the custom session log format configured by the session_log_format directive. If format is not specified, the predefined “combined” format is used.

Links:

https://nginx.org/en/docs/http/ngx_http_session_log_module.html#session_log_zone

doc_nginx

2017-02-09 07:09:13

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