This article is a legacy article. It applies to previous versions of the Liferay product. While the article is no longer maintained, the information may still be applicable.
Permission algorithm 5 was used as the default permissions algorithm starting with Liferay Portal 5.1. Beginning with Liferay Portal 6.0, permission algorithm 6 is now used.
When upgrading from any version earlier than Liferay Portal 6.0, the permission algorithm may be on a legacy algorithm. Users may find it advantageous to migrate their permissions from algorithm 5 to 6 before upgrading from a Portal 5 version to Portal 6. Algorithms 1 through 4 are user-based and cumbersome as permissions must be set per user. Algorithm 5 is role based. Algorithm 6 is bitwise and uses only two-thirds of the space that Algorithm 5 uses.
This article describes how to upgrade your permission algorithm from earlier versions to permissions algorithm 6.
Please refer to the Migrate to Algorithm 6 section of our Liferay Portal User Guide.
Depending on the number of roles a user has, the permission upgrade may take a long time.
To speed up the upgrade process, users can change the multi value map to store in memory, as this should be faster for the upgrade:
### #Set the multi value map property to 0 to store the map in memory and 1 to #Store the map in the file system. multi.value.map.com.liferay.portal.convert.ConvertPermissionAlgorithm.convertResourcePermission=1 multi.value.map.com.liferay.portal.convert.ConvertPermissionAlgorithm.convertRoles=1
Changing both properties to 0 (zero) will have the multi-value-maps stored within memory.