I use MySQL Cluster 7.1.15a.
I have 2 nodes, ndb_mgm -e shows:
[ndbd(NDB)] 2 node(s) id=3 @X (mysql-5.1.56 ndb-7.1.15, starting, Nodegroup: 0, Master) id=4 @Y (mysql-5.1.56 ndb-7.1.15, starting, Nodegroup: 0)
(ignore the starting state, i just started the cluster)
Node id 3 is Master
- What does it mean ?
- What is the difference between Master and Slave nodes ?
I connect using mysql node anyhow, so I don't choose to which data node to connect.
- Do writes happens on the Master and reads on the Slave?
- When I connect to the mysql node, does that happen transparently?