Use "currently_outstanding" metric for load-balance. i.e. we choose
authoraland <aland>
Mon, 14 May 2007 09:42:51 +0000 (09:42 +0000)
committeraland <aland>
Mon, 14 May 2007 09:42:51 +0000 (09:42 +0000)
commitdff277ac0350a28fa0b4af6a929445aae4f73de5
tree94d76a16059fa028f5a1d2f71c241b7d58b6cc72
parent4af09a0e096ea0486e0b92caa13c03c645e85cee
Use "currently_outstanding" metric for load-balance.  i.e. we choose
the home server with the lowest "currently_outstanding" number.
If there are multiple home servers with the same number, randomly
choose among them.

This means that when a home server is dead and doesn't respond,
the requests will immediately be load-balanced to any live servers
src/main/realms.c