ECI connection factories that are configured to use a local
mode IPIC connection to CICS® can
benefit from the automatic fail over capability that is provided in IBM® WebSphere® Application
Server.
Before you begin
The automatic fail over and fail back capability is supported when connected to CICS TS 4.1
and later.
About this task
IBM WebSphere Application
Server allows a connection factory to be configured with the JNDI
name of an alternative connection factory that is configured to use
a different CICS server. When
a failure occurs on a connection to the primary CICS server, new transactions are automatically
routed to use the alternative connection factory. When the connection
to the primary CICS server
becomes available, new transactions are automatically routed to use
the primary connection factory.
Procedure
- Create and configure the primary ECI connection factory
with a local mode IPIC connection to CICS.
- Create and configure an alternative ECI connection factory
with the same configuration as the primary connection factory, but
with a different IPIC connection URL in the serverName property.
- Add the alternateResourceJNDIName custom
property to the connection pool properties for the primary connection
factory. Set the property value to the JNDI name of the alternative
connection factory.