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Chapter 6: Driver Connection Properties and Data Types by Database Brand
Table 17. Connection Properties for the Microsoft SQL Server Driver (continued)
Property Description
LoadBalancing
OPTIONAL
{true | false}
Determines whether the driver will use client load balancing in its
attempts to connect to a list of database servers (primary and alternate).
The list of alternate servers is specified by the AlternateServers
property. The LoadBalancing property determines behavior as follows:
● true — Client load balancing is used and the driver attempts to
connect to the list of database servers (primary and alternate servers)
in random order.
● false — Client load balancing is not used and the driver connects to
each server based on their sequential order (primary server first,
then, alternate servers in the order they are specified).
The default is false.
For example, in the case where the following properties are specified:
AlternateServers=(server2:1433,server3:1433,server4:1433)
and
LoadBalancing=true
the driver randomly selects from the list of primary and alternate servers
which server to connect to first. If that connection fails, the driver again
randomly selects from this list of servers until all servers in the list have
been tried or a connection is successfully established.
See “Client Load Balancing” on page 131 for more information about
specifying connection information for primary and alternate servers.
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