Welcome to the Log Working Group page. This page contains information and links relevant to the task of rationalizing the OpenStack logs and log processes.
https://wiki.openstack.org/wiki/AuditLogging (Possibly *the* original page on logging for OpenStack -- 2010)
https://wiki.openstack.org/wiki/GuruMeditationReport (interesting tool if it's available and plays into logging)
https://wiki.openstack.org/wiki/Solum/Logging (good stuff!)