slave to catch up to that position before doing any reads from it. If
this wait times out, reads are allowed anyway, but the request is
considered to be in "lagged slave mode". Lagged slave mode can be
-checked by calling wfGetLB()->getLaggedSlaveMode(). The only
+checked by calling wfGetLB()->getLaggedReplicaMode(). The only
practical consequence at present is a warning displayed in the page
footer.