This section describes how naming conventions are impacted by replication channels.
Each replication channel has a unique name which is a string with a maximum length of 64 characters and is case insensitive. Because channel names are used in slave tables, the character set used for these is always UTF-8. Although you are generally free to use any name for channels, the following names are reserved:
The name you choose for a replication channel also influences the
file names used by a multi-source replication slave. The relay log
files and index files for each channel are named
relay_log_basename is a base name
specified using the
channel is the name of the
channel logged to this file. If you do not specify the
--relay-log option, a default file
name is used that also includes the name of the channel.