Progress Sonic ESB Configuration and Management Guide

Chapter 6: Driver Connection Properties and Data Types by Database Brand
Table 8. DB2 Connection Properties (continued)
Property Description
AlternateServers
OPTIONAL
A list of alternate database servers that the driver will try to connect to if
the primary database server is unavailable. The value of this property is a
string that specifies each alternate server. This string has the format:
(servername1[:port1][;property=value[;...]],
servername2[:port2][;property=value[;...]],...)
The server name is required for each alternate server entry. Port number
and connection properties (property=value) are optional for each
alternate server entry. If the port is unspecified, the port number of the
primary server is used. If the port number of the primary server is
unspecified, the default port number of 50000 is used. Optional connection
properties for the driver are DatabaseName (for DB2 UDB) and
LocationName (for DB2 OS/390 and iSeries). For example:
jdbc:progress:db2://server1:50000;DatabaseName=TEST;
AlternateServers=(server2:50000;DatabaseName=TEST2,
server3:50000;DatabaseName=TEST3)
contains alternate server entries for server2 and server3. The alternate
server entries contain the optional DatabaseName property.
Other properties are:
● ConnectionRetryCount — Controls the number of times the driver
retries the list of servers (primary and alternate) while attempting to
establish a connection.
● ConnectionRetryDelay — Sets the wait interval, in seconds, between
retry attempts.
● LoadBalancing — Controls the order in which the driver sequences
through the list of servers (primary and alternate) while attempting to
establish a connection.
See “Specifying Primary and Alternate Servers” on page 135 for more
information about specifying connection information for primary and
alternate servers.
149 Progress Sonic ESB Configuration and Management Guide 8.5