I have 6 instances of MySQL running on a server, using mysqld_multi, each of which has a unique server-id.
Each instance is set up as a replication slave. None of the slave instances are replicating from the same master.
Each slave instance has a different server-id to the master it's replicating from.
My question is, does it matter that some of the masters share the same server-id? I would have thought not, because the masters shouldn't have any knowledge of the slave instances, other than the particular instance it's replicating to.
The reason I ask, is because I'm getting thousands of 4KB relay log files appearing on a couple of the slave instances which are both replicating from a master with the same ID, and some research has told me that these small log files can sometimes be caused by non unique server-id issues.
Any help would be very much appreciated
Each instance is set up as a replication slave. None of the slave instances are replicating from the same master.
Each slave instance has a different server-id to the master it's replicating from.
My question is, does it matter that some of the masters share the same server-id? I would have thought not, because the masters shouldn't have any knowledge of the slave instances, other than the particular instance it's replicating to.
The reason I ask, is because I'm getting thousands of 4KB relay log files appearing on a couple of the slave instances which are both replicating from a master with the same ID, and some research has told me that these small log files can sometimes be caused by non unique server-id issues.
Any help would be very much appreciated