18.6.1 MySQL Cluster Replication: Abbreviations and Symbols

Throughout this section, we use the following abbreviations or symbols for referring to the master and slave clusters, and to processes and commands run on the clusters or cluster nodes:

Symbol or AbbreviationDescription (Refers to...)
MThe cluster serving as the (primary) replication master
SThe cluster acting as the (primary) replication slave
shellM>Shell command to be issued on the master cluster
mysqlM>MySQL client command issued on a single MySQL server running as an SQL node on the master cluster
mysqlM*>MySQL client command to be issued on all SQL nodes participating in the replication master cluster
shellS>Shell command to be issued on the slave cluster
mysqlS>MySQL client command issued on a single MySQL server running as an SQL node on the slave cluster
mysqlS*>MySQL client command to be issued on all SQL nodes participating in the replication slave cluster
CPrimary replication channel
C'Secondary replication channel
M'Secondary replication master
S'Secondary replication slave