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Clustering prerequisites when upgrading to Alfresco Content Services 6.1.1

There are a number of prerequisites for upgrading from a version of Alfresco Content Services prior to 4.2 to 6.1.1 in a clustered environment.
Before upgrading, ensure that all files and configuration are backed up. Any customization(s) that you have made, for example, creation of custom caches, might need to be reapplied using the new Alfresco Content Services 6.1.1 clustering infrastructure.
The following libraries are no longer used in Alfresco Content Services 4.2 onwards, so any configuration related to these libraries should be removed before upgrading:
  • JGroups
  • EHCache
Note: You do not need to follow these steps if you are upgrading from Alfresco Content Services 4.2 to Alfresco Content Services 6.1.1. This information is only relevant if you are upgrading from any version prior to 4.2.

Follow the steps to remove the configuration not supported in version 6.1.1:

  1. Browse to the <classpathRoot> directory.

    For example, for Tomcat 7, browse to the $TOMCAT_HOME/shared/classes/alfresco/extension/ directory.

  2. Delete the ehcache-custom.xml file.
  3. Browse to the <classpathRoot> directory.

    For example, for Tomcat 7, browse to the $TOMCAT_HOME/shared/classes/ directory.

  4. Open the file.
  5. Remove the following legacy properties from the file:

    • alfresco.ehcache.rmi.hostname
    • alfresco.ehcache.rmi.port
    • alfresco.ehcache.rmi.remoteObjectPort
    • alfresco.jgroups.defaultProtocol
    • alfresco.jgroups.bind_address
    • alfresco.jgroups.bind_interface
    • alfresco.tcp.start_port
    • alfresco.tcp.initial_hosts
    • alfresco.tcp.port_range
    • alfresco.udp.mcast_addr
    • alfresco.udp.mcast_port
    • alfresco.udp.ip_ttl
    • filesystem.cluster.enabled
    • filesystem.cluster.configFile
  6. Browse to the <classpathRoot> directory.

    For example, for Tomcat 7, browse to the $TOMCAT_HOME/shared/classes/alfresco/extension directory.

  7. Remove the Hazelcast configuration file, hazelcastConfig.xml, as a centralized configuration is now included within the alfresco.war deployment archive.

    The filesystem.cluster.configFile property mentioned in Step 5 refers to the hazelcastConfig.xml file.

  8. After you have performed all the specified steps, if you want to initiate clustering, see Setting up repository server cluster for the instructions on installing an Alfresco Content Services 6.1.1 cluster.

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