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
base_name is generally a host
name (if not specified using
channel_name is the name of the channel
logged to this file.