Syntax: map_hash_max_size size; Default: map_hash_max_size 2048; Context: stream Sets the maximum size of the map variables hash tables. The details of setting up hash tables are provided in a separate document.

Syntax: map_hash_max_size size; Default: map_hash_max_size 2048; Context: http Sets the maximum size of the map variables hash tables. The details of setting up hash tables are provided in a separate document.

Syntax: map_hash_bucket_size size; Default: map_hash_bucket_size 32|64|128; Context: stream Sets the bucket size for the map variables hash tables. Default value depends on the processor’s cache line size. The details of setting up hash tables are provided in a separate document.

Syntax: map_hash_bucket_size size; Default: map_hash_bucket_size 32|64|128; Context: http Sets the bucket size for the map variables hash tables. Default value depends on the processor’s cache line size. The details of setting up hash tables are provided in a separate document.

Syntax: map string $variable { ... } Default: — Context: stream Creates a new variable whose value depends on values of one or more of the source variables specified in the first parameter. Since variables are evaluated only when they are used, the mere declaration even of a large number of “map” variables does not add any extra costs to connection processing. Parameters inside the map block specify a mapping between source and resulting values. Source values are spe

Syntax: map string $variable { ... } Default: — Context: http Creates a new variable whose value depends on values of one or more of the source variables specified in the first parameter. Before version 0.9.0 only a single variable could be specified in the first parameter. Since variables are evaluated only when they are used, the mere declaration even of a large number of “map” variables does not add any extra costs to request processing. Parameters inside the map

Syntax: mail { ... } Default: — Context: main Provides the configuration file context in which the mail server directives are specified.

Syntax: log_subrequest on | off; Default: log_subrequest off; Context: http, server, location Enables or disables logging of subrequests into access_log.

Syntax: log_not_found on | off; Default: log_not_found on; Context: http, server, location Enables or disables logging of errors about not found files into error_log.

Syntax: log_format name [escape=default|json] string ...; Default: — Context: stream Specifies the log format, for example: log_format proxy '$remote_addr [$time_local] ' '$protocol $status $bytes_sent $bytes_received ' '$session_time "$upstream_addr" ' '"$upstream_bytes_sent" "$upstream_bytes_received" "$upstream_connect_time"'; The escape parameter (1.11.8) allows setting json or default characters escaping in va