The getCache() timeout should not be increased at all. Instead I would

propose that getCache() returns a functional cache immediately, even

if the cache didn't receive any data, and it works solely as an L1

cache until the administrator allows it to join. I'd even make it

possible to designate a cache as an L1-only cache, so it's never an

owner for any key.

I agree that would be very nice, but makes it much more complex to

implement in 5.2 as well: functional L1 means that the other nodes

must accept this node as part of the grid, including for L1

invalidation purposes.

I don't think L1 would be a problem, the L1 code doesn't assume that
the requestor is in the CH. That would basically be the only
difference between a "normal" node and a "L1-only" node.