Error: object key too large to fit in cache

We are seeing the following erorr:

18:45:22 Cache: Roster – object with key xxxxx is too large to fit in cache. Size is 586693

Is this an error I should be worried about? What causes it? Is there a way to remedy this>

The user in question has many thousand users in their roster…

Also seeing this for certain Adium users, usually as often as every two seconds. The object in question is a vCard, I believe – a big photo, perhaps?

Have you increased your Roster cache accordingly?

http://wiki.igniterealtime.org/display/WILDFIRE/HowtoconfigureWildfire%27scaches