Description of problem:
When the coordinator crashes, the new coordinator has to recover the cache topologies from all the nodes in the cluster and install updated topologies for all the caches. This is done on a single thread, and it can take a long time when there are a lot of caches.

We should be accelerate this by doing the topology installation on separate threads. However, we have to be careful with the async transport pool, because executeOnClusterAsync actually needs to spawn a new thread in the same pool.