Posts Tagged ‘alfresco upgrade’

Alfresco has recently released the Alfresco 4.0 version, and also came up with nightly build packs such as 4.0.b, 4.0.c. This informative article will be used for those users who are planning to upgrade Alfresco 3.4 to 4.0.

Alfresco has released the newer version with POSTGRESQL database, where the older versions used MYSQL database. So, in the future releases, Alfresco might go with POSTGRESQL. Instead of using the POSTGRESQL, the users still have the facility of using existing database installed in their machines such as MySql, Oracle, etc.

This upgrade procedure uses existing MYSQL database (instead of migrating the whole database to POSTGRESQL), by pointing the Alfresco installation to the MYSQL database. The upgrade from 3.4 to the higher versions like 4.0b will not work. However, applying a patch before the upgrade will help in completing the process successfully.

The following is the procedure for upgrading from 3.4 to 4.0b.

  1. Stop the Alfresco server.
  2. Keep the MySql server up and running, as we are going to use this as the database for 4.0 installation.
  3. Download ALFRESCO COMMUNITY EDITION 4.0.a, and install in the machine which has 3.4 is installed.
  4. At the time of installation, give the following details:
    username: alfresco
    password: root
    name:      alfresco
    url:           jdbc:mysql://localhost:3306/alfresco
  5. After the installation is complete, Copy the contentstore and contentstore.deleted folders in alf_data folder of C:\Alfresco3.4 to C:\Alfresco4.0. 
  6. Now, do the following changes in file.
    1. Make sure that the "dir.root" location is pointing to the correct location where the alf_data is stored. For example, dir.root=C:/Alfresco4.0/alf_data.
    2. Add the following line at the end of the file, to re-index the content.
    3. Add the following line at the end of the file, to set the indexing system as LUCENE. (Lucene is the indexing system for versions prior to 4.0)
    4. Comment out the following lines
    5.                ### Solr indexing ##
    6. Save the file.
  7. Place the MySql connector in tomcat/lib folder.
  8. Download the patch-ALF-11029-context.xml file from here, and place the file into <tomcat>/shared/classes/alfresco/extension.
  9. Start the Alfresco instance.
  10. If any errors appear, check the log file.
  11. Once the restart is done properly, and after the lucene indexes folder is created in the alf_data folder, remove the above line index.recovery.mode=FULL in, to ensure that the indexing will not be done every time when the alfresco server is restarted.
  12. If the application is not deployed properly, and if the log file says something related indexing MPEG extension, then search for the file patch-services-context.xml, and replace the value of reindex to false for mpeg.
  13. Restart the system.

Verify whether all the data (Sites, content, etc..) is accessible through Alfresco Explorer and Share or not.

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