synapse/docker/conf/log.config

version: 1

formatters:
  precise:
   format: '%(asctime)s - %(name)s - %(lineno)d - %(levelname)s - %(request)s - %(message)s'

handlers:
  console:
    class: logging.StreamHandler
    formatter: precise

loggers:
    synapse.storage.SQL:
        # beware: increasing this to DEBUG will make synapse log sensitive
        # information such as access tokens.
        level: INFO

root:
    level: {{ SYNAPSE_LOG_LEVEL or "INFO" }}
    handlers: [console]

disable_existing_loggers: false