LazyResultLoader not serializable exception
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Key: IBATIS-529
URL: https://issues.apache.org/jira/browse/IBATIS-529
Project: iBatis for Java
Issue Type: Bug
Components: SQL Maps
Affects Versions: 2.3.3, 2.3.2, 2.3.1, 2.3.0
Environment: OS: Windows and Linux
Ibatis 2.3.0 - 2.3.3 / Spring 2.5-2.5.5
lazyLoadingEnabled=true and enhancementEnabled=true
Application clustered on Tomcat 6.0.x
Reporter: Dan
After configuring the application to run in a Tomcat Cluster, we started
receiving this error once replication took place:
java.io.NotSerializableException:
com.ibatis.sqlmap.engine.mapping.result.loader.LazyResultLoader
at java.io.ObjectOutputStream.writeObject0(Unknown Source)
at java.io.ObjectOutputStream.defaultWriteFields(Unknown Source)
at java.io.ObjectOutputStream.writeSerialData(Unknown Source)
at java.io.ObjectOutputStream.writeOrdinaryObject(Unknown Source)
at java.io.ObjectOutputStream.writeObject0(Unknown Source)
at java.io.ObjectOutputStream.defaultWriteFields(Unknown Source)
at java.io.ObjectOutputStream.writeSerialData(Unknown Source)
at java.io.ObjectOutputStream.writeOrdinaryObject(Unknown Source)
at java.io.ObjectOutputStream.writeObject0(Unknown Source)
at java.io.ObjectOutputStream.writeObject(Unknown Source)
As a workaround we have set lazyLoadingEnabled=false and
enhancementEnabled=false on sql-map-config.xml, but the response times for a
simple query has passed from 172ms. to 4222ms. which is a big difference on
performance.
In order to enable web applications running iBatis to scale out on a cluster
and to show improved performance (keep lazy loading enabled) it will be good to
have a fix for this situation.
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