Installation guide

CHAPTER 3 New features in EAServer 5.2
What’s New 11
To use mirror caching feature, the message service must be active. The mirror
object cache uses the following message queues to send and receive messages:
• <jc> – the object cache queue listens for system messages, such as server
shutdown and start-up messages.
• <mc> – the mirror cache queue enables a remote server to recover lost
data.
❖ Configuring EAServer to use mirror caching for HTTP sessions
1 Configure the server in a cluster, and designate mirror pairs:
• Chapter 6, “Clusters and Synchronization,” in the EAServer System
Administration Guide describes how to configure a cluster.
• Chapter 29, “Configuring Persistence Mechanisms,” in the EAServer
Programmer’s Guide describes how to configure mirror pairs.
2 In the Web Application Properties dialog box:
a On the General tab, check the Distributable option.
b On the Advanced tab, add the
com.sybase.jaguar.webapplication.distribute.type property, and set the
value to “mirror.”
❖ Configuring EAServer to use mirror caching for stateful session
components
1 Configure the server in a cluster, and designate mirror pairs:
• Chapter 6, “Clusters and Synchronization,” in the EAServer System
Administration Guide describes how to configure a cluster.
• Chapter 29, “Configuring Persistence Mechanisms,” in the EAServer
Programmer’s Guide describes how to configure mirror pairs.
2 In the Component Properties dialog box, set the following properties
before you generate skeletons:
a On the Persistence tab, set Persistence to “Java Serialization” and set
the Storage Component to “CtsComponents/JavaMirrorStorage.”
b On the Transactions tab, select Automatic Failover.
c On the Instances tab, unselect Transient.