Paul Ferraro created WFLY-13001: ----------------------------------- Summary: Add user API to handle merging HttpSession attributes/metadata on partition merge Key: WFLY-13001 URL: https://issues.redhat.com/browse/WFLY-13001 Project: WildFly Issue Type: Feature Request Components: Clustering Affects Versions: 18.0.1.Final Reporter: Paul Ferraro Assignee: Paul Ferraro In the event of a detected network partition, the distributed web session manager's Infinispan cache behaves in one of 3 ways: # Disallow both reads and writes from/to a web session in all partitions # Allow reads from a web session in all partitions, but only allow writes to a web session if the partition contains all data owners. # Allow both reads and writes to/from a web session in all partitions For customers who opt for #3 (i.e. maximum availability), in the event that a web session is updated in both partitions, they need be able to provide a mechanism to resolve conflicts when the partitions eventually merge. When partition handling of a web session cache is enabled, users need a mechanism to control how to resolve conflicting session attributes on merge. Something like: {code:java} public interface SessionAttributeMergePolicy { Object merge(String attributeName, Object primaryPartitionAttributeValue, Iterable<Object> minorityPartitionAttributeValues); } {code} -- This message was sent by Atlassian Jira (v7.13.8#713008)