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22.6.1 NDB 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:
Table 22.424 Abbreviations used throughout this section referring to master and slave clusters, and to processes and commands run on 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 |
shell |
Shell command to be issued on the master cluster |
mysql |
MySQL client command issued on a single MySQL server running as an SQL node on the master cluster |
mysql |
MySQL client command to be issued on all SQL nodes participating in the replication master cluster |
shell |
Shell command to be issued on the slave cluster |
mysql |
MySQL client command issued on a single MySQL server running as an SQL node on the slave cluster |
mysql |
MySQL client command to be issued on all SQL nodes participating in the replication slave cluster |
C |
Primary replication channel |
C' |
Secondary replication channel |
M' |
Secondary replication master |
S' |
Secondary replication slave |
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