ConfigOption/pool host list
Defines a comma separated ordered list of pools to use for pooled mining. The first pool that is giving valid work is used. Connections are maintained with all pools listed.
If the miner fails over to a pool down the list, it will return to the first pool when that pool starts working again.
Very simple and handles down pools ok. It does not account for pools that are constantly rejecting shares or mining and old block. It just assumes the first pool to give a valid work unit is the one to use.
No default. If not present then pool_host is used instead.