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New in version 3.6.
Enables or disables causal consistency on the connection object. Causal consistency is disabled on the connection object by default.
Mongo()connection object may have causal consistency disabled even though sessions may have causal consistency enabled or vice versa. See
To enable causal consistency for the connection object, call the method without any argument:
var conn = Mongo("localhost:27017"); conn.setCausalConsistency();
The method also can accept a boolean argument:
trueto enable causal consistency:
falseto disable causal consistency:
mongo shell operation enables causal
consistency on the
Mongo() connection object associated with
mongo shell's global
To check if causal consistency is enabled for a connection, use the
Mongo.isCausalConsistency() method. For example: