Oracle SuperCluster T5-8, Owner'S Manual

Page: 231 / 356

Enable Cluster-Level Session Replication Enhancements
Feature
Gathered Writes
Description Increased efficiency during I/O in environments with high network
throughput
Startup Option -Dweblogic.GatheredWritesEnabled=true/false
MBean KernelMBean.setGatheredWritesEnabled
Lazy Deserialization
Description Increased efficiency with session replication
Startup Option -Dweblogic.replication.enableLazyDeserialization=true/false
MBean ClusterMBean.setSessionLazyDeserializationEnabled
Note - After enabling the optimizations, you may see the following message:
java.io.
IOException: Broken pipe
. You may see the same message when storage failover occurs. In
either case, you can ignore the error message.
Enable Cluster-Level Session Replication Enhancements
You can enable session replication enhancements for Managed Servers in a WebLogic cluster to
which you will deploy a web application at a later time.
Note -
If you are using Coherence*web, these session replication enhancements do not
apply. Skip these steps if you use the dizzyworld.ear application as described in Chapter 8,
“Deploying a Sample Web Application to and Oracle WebLogic Cluster” in the Oracle®
Fusion Middleware Exalogic Enterprise Deployment Guide at
http://docs.oracle.com/cd/
E18476_01/doc.220/e18479/deploy.htm
.
To enable session replication enhancements for
Dept1_Cluster1
, complete the following steps:
1. Ensure that Managed Servers in the Dept1_Cluster1 cluster are up and running,
as described in Section 5.16 “Starting Managed Servers on ComputeNode1
and ComputeNode2” of the Oracle® Fusion Middleware Exalogic Enterprise
Deployment Guide at
http://docs.oracle.com/cd/E18476_01/doc.220/e18479/
create_domain.htm#BABEGAFB
.
2. To set replication ports for a Managed Server, such as WLS1, complete the
following steps:
a. Under Domain Structure, click Environment and Servers.
The Summary of Servers page is displayed.
Configuring Exalogic Software 231