Enable Domain-Level Enhancements
To enable domain-level enhancements, complete the following steps:
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Log in to the Oracle WebLogic Server Administration Console.
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Select Domain name in the left navigation pane.
The Settings for Domain name screen is displayed. Click the General
tab.
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In your domain home page, select Enable Exalogic Optimizations, and click
Save.
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Activate changes.
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Stop and start your domain.
The Enable Exalogic Optimizations setting collectively enables all of the
individual features described in the following table. The Startup Option
indicates how to independently enable and disable each feature.
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Scattered Reads
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Description
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Increased efficiency during I/O in environments with high
network throughput
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Startup Option
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-Dweblogic.ScatteredReadsEnabled=true/false
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MBean
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KernelMBean.setScatteredReadsEnabled
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Gathered Writes
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Description
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Increased efficiency during I/O in environments with high
network throughput
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Startup Option
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-Dweblogic.GatheredWritesEnabled=true/false
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MBean
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KernelMBean.setGatheredWritesEnabled
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Lazy Deserialization
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Description
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Increased efficiency with session replication
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Startup Option
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-Dweblogic.replication.enableLazyDeserialization=true/false
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MBean
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ClusterMBean.setSessionLazyDeserializationEnabled
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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.