17.6.1. 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 Abbreviation	Description (Refers to...)
`M`	The cluster serving as the (primary) replication master
`S`	The 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 thereplication slave cluster
`C`	Primary replication channel
`C'`	Secondary replication channel
`M'`	Secondary replication master
`S'`	Secondary replication slave