[KARAF-1081] Cellar should provide a Hazelcast merge policy.

• Type: New Feature
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Affects Version/s: cellar-2.2.2, cellar-2.2.1
• Fix Version/s: cellar-3.0.0, cellar-2.2.3
• Assignee: Ioannis Canellos
• Reporter: Ioannis Canellos
• Created: 03/Dec/11 18:16
• Updated: 03/Dec/11 19:46
• Resolved: 03/Dec/11 19:46

Description

In Hazelcast it is possible to have a network split and network merge.
After the merge hazelcast attempts to merge the data from the 2 clusters.

In Cellar we often use maps that contain lists, or sets as a value.
Usaly those sets contain a list of nodes (e.g. group of members or dosgi service providers etc).

We should provide a merge policy that will make sure those maps (containing sets) will be properly merged back together.