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Note: Run Syncope in real environments is a prerequisite for this page.

Core

OpenJPA Remote Event Notification

When deploying multiple Syncope instances insisting on a single database or database cluster, it is of fundamental importance that the contained OpenJPA instances are correctly configured for remote event notification.

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Info

OpenJPA documentation refers to direct configuration under META-INF/persistence.xml; for example:

Code Block
languagexml
<property name="openjpa.RemoteCommitProvider" value="tcp(Addresses=10.0.1.10;10.0.1.11)"/>

for usage in core/src/main/resources/persistenceContextEMFactory.xml this becomes:

Code Block
languagexml
<entry key="openjpa.RemoteCommitProvider" value="tcp(Addresses=10.0.1.10;10.0.1.11)"/>

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Console

Apache Tomcat 7

Having this as special reference,

  1. Add <distributable> in coreconsole/src/main/webapp/WEB-INF/web.xml
  2. Be sure that all cluster nodes have time aligned (via NTP or other)
  3. Enable Tomcat 7 clustering (session replication is not needed)
  4. Deploy your WAR artifacts to all cluster nodes