This is documentation about a configuration directive, which can be placed within Movable Type’s core configuration file,
mt-config.cgi, to customize the behavior of the system.
Used with database role configurations, and is only valid for MySQL installations. If enabled, any slave databases are queried for replication lag. If a slave is found to be lagged, it will not be used; another slave database will be used instead, or MT will fall back to the master database if necessary.
1 to enable