open_log_file_cache

Defines a cache that stores the file descriptors of frequently used logs whose names contain variables. The directive has the following parameters:

max

sets the maximum number of descriptors in a cache; if the cache becomes full the least recently used (LRU) descriptors are closed

inactive

sets the time after which the cached descriptor is closed if there were no access during this time; by default, 10 seconds

min_uses

sets the minimum number of file uses during the time defined by the inactive parameter to let the descriptor stay open in a cache; by default, 1

valid

sets the time after which it should be checked that the file still exists with the same name; by default, 60 seconds

off

disables caching

Usage example:

open_log_file_cache max=1000 inactive=20s valid=1m min_uses=2;