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 Domainname in the left navigation pane. The
Settings for Domainname 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.