SlaveofCommand
The SLAVEOF command can change the replication settings of a slave on the fly.If a Redis server is arleady acting as slave, the command SLAVEOF NO ONEwill turn off the replicaiton turning the Redis server into a MASTER.In the proper form SLAVEOF hostname port will make the server a slave of thespecific server listening at the specified hostname and port.
If a server is already a slave of some master, SLAVEOF hostname port willstop the replication against the old server and start the synchrnonizationagainst the new one discarding the old dataset.
The form SLAVEOF no one will stop replication turning the server into aMASTER but will not discard the replication. So if the old master stop workingit is possible to turn the slave into a master and set the application touse the new master in read/write. Later when the other Redis server will befixed it can be configured in order to work as slave.
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