如何减少WordLift日志的数量？

Question

Our web site logs are full with many WordLift's related events.

Specifically we see many lines like these in the error_log file: [21-Aug-2018 16:17:04 UTC] TRACE [Wordlift_File_Cache_Service ] Trying to get cache... [21-Aug-2018 16:17:29 UTC] DEBUG [Wordlift_Entity_Post_Type_Service ] Registering post type entity... [21-Aug-2018 16:17:31 UTC] TRACE [Wordlift_Cached_Post_Converter ] Post 963 relations changed, invalidating cache...

How do I limit WordLift's logging?

Answer 1

It looks that debug is enabled and WordLift is logging trace, debug, info, warn and error messages to the PHP logging facility (which is called error_log, hence the general misunderstanding that they're all errors).

To filter WordLift logging level, add the following to the wp-config.php file (3 = log warnings and errors, 4 = log only errors):

define( 'WL_LOG_LEVEL', 3 );