Progress Sonic ESB Configuration and Management Guide

Informix Driver Connection Failover Properties
Table 12 summarizes the connection properties that control how connection failover
works with the Database Service DB2 driver. See “Informix Driver Connection
Properties” on page 164 for details about configuring each property.
Table 12. Connection Failover Properties for the Informix Driver
Property Description
Informix
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 InformixServer) 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, the port specified for the primary server 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.
InformixServer The name of the Informix database server 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 disabled).
See “Client Load Balancing” on page 131 and “Connection Failover” on page 132 for
overviews of these features.
Specifying Alternate Servers for the Informix Driver
The following connection URL for the Informix driver specifies connection information
for the primary and alternate servers:
jdbc:progress:informix://server1:2003;InformixServer=TestServer;
DatabaseName=TestServer;
AlternateServers=(server2:2003;InformixServer=TestServer2,server3:2003)
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