Progress Sonic ESB Configuration and Management Guide

Chapter 6: Driver Connection Properties and Data Types by Database Brand
DB2 Driver Connection Failover Properties
Table 9 summarizes the connection properties that control how connection failover works
with the Database Service DB2 driver. See “DB2 Driver Connection Properties” on
page 148 for details about configuring each property.
Table 9. Connection Failover Properties for the DB2 Driver
Property Description
AlternateServers List of alternate database servers. An IP address or server name identifying each
server is required. Port number and supported connection properties (DatabaseName
or LocationName) are optional. If the port number is unspecified, the port specified
for the primary server is used. If a port number is not specified for the primary
server, a default port number of 50000 is used.
ConnectionRetryCount Number of times the driver retries the list of database servers (primary and alternate)
until a successful connection is established. The default is 0 (connection retry is not
used).
ConnectionRetryDelay Wait interval, in seconds, used between attempts to connect to a list of database
servers (primary and alternate) when the ConnectionRetryCount property is set to a
positive integer. The default is 3.
DatabaseName The name of the database to which you want to connect.
LoadBalancing Sets whether the driver will use client load balancing in its attempts to connect to the
list of database servers (primary and alternate). If client load balancing is enabled,
the driver uses a random pattern instead of a sequential pattern in its attempts to
connect. The default is false (client load balancing is not used).
See “Client Load Balancing” on page 131 and “Connection Failover” on page 132 for
overviews of these features.
Specifying Alternate Servers for the DB2 Driver
The following connection URL for the DB2 driver specifies connection information for
the primary and alternate servers:
jdbc:progress:db2://server1:50000;DatabaseName=TEST;
AlternateServers=(server2:50000;DatabaseName=TEST2,
server3:50000;DatabaseName=TEST3)
161 Progress Sonic ESB Configuration and Management Guide 8.5