The URI being used to extract THL information. On a master, the information may be empty, or may contain the reference to the underlying extractor source where information is being read.
On a slave, the URI indicates the host from which THL data is being read:
masterConnectUri : thl://host1:2112/
In a secure installation where SSL is being used to exchange
data, the URI protocol will be
masterConnectUri : thls://host1:2112/