Larger application (spring/hibernate/ehcache) running on Terracotta at log4p

Larger application (spring/hibernate/ehcache) running on Terracotta

Published by peter June 15th, 2007 in java.

With some tweaking I managed to get one of the webapps in our current project to run using terracotta to cluster caches. The only modification I had to make was related to one of my objects not being threadsafe; actually I solved a potential concurrency problem.

Configuring Terracotta proved to be a bit more complex then I anticipated; but this might be due to my lack of Terracotta knowledge.

Here is the tc-config file I created:

PLAIN TEXT

XML:

<?xml version="1.0" encoding="UTF-8"?>
<tc:tc-config xmlns:tc="http://www.terracotta.org/config" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://www.terracotta.org/schema/terracotta-3.xsd">
<servers>
<server host="%i" name="sample" />
</servers>
<clients>
<logs>/Users/peter/JavaApplications/sandbox/log/%D</logs>
<modules>
<module name="clustered-commons-collections-3.1" version="1.0.0" />
<module name="clustered-ehcache-1.3" version="1.0.0" />
<module name="clustered-hibernate-3.1.2" version="1.0.0" />
<module name="autolock-synchronizedcollection" version="1.0.0" />
<module name="autolock-synchronizedset" version="1.0.0" />
</modules>
</clients>
<application>
<spring>
<jee-application name="*">
<session-support>false</session-support>
<instrumented-classes>
<include>
<class-expression>nl.cinema..*</class-expression>
</include>
<include>
<class-expression>org.hibernate.collection..*</class-expression>
</include>
<include>
<class-expression>org.hibernate.cache..*</class-expression>
</include>
<include>
<class-expression>org.hibernate.type..*</class-expression>
</include>
<include>
<class-expression>org.hibernate.EntityMode</class-expression>
</include>
</instrumented-classes>
<transient-fields>
<field-name>net.sf.ehcache.store.DiskStore.spoolThread</field-name>
<field-name>net.sf.ehcache.Cache.shutdownHook</field-name>
<field-name>net.sf.ehcache.store.LfuMemoryStore.random</field-name>
</transient-fields>
<locks>
<autolock>
<method-expression>* nl.cinema.domain.global.Describer.*(..)</method-expression>
<lock-level>write</lock-level>
</autolock>
<autolock>
<method-expression>* nl.cinema.domain.util.CacheGroup.*(..)</method-expression>
<lock-level>write</lock-level>
</autolock>
</locks>
<application-contexts>
<application-context>
<paths>
<path>/WEB-INF/applicationContext.xml</path>
</paths>
<beans>
<bean name="pageCache">
<non-distributed-field>logger</non-distributed-field>
<non-distributed-field>configLocation</non-distributed-field>
</bean>
<bean name="groupCache">
<non-distributed-field>logger</non-distributed-field>
<non-distributed-field>configLocation</non-distributed-field>
</bean>
</beans>
</application-context>
</application-contexts>
</jee-application>
</spring>
</application>
</tc:tc-config>