MySQL Cluster Manager 9.2.0 User Manual
add hosts Commandremove hosts Commandchange log-level Commandrotate log Commandcollect logs Commandcreate site Commanddelete site Commandlist sites Commandlist hosts Commandshow settings Commandstop agents Commandversion Commandshow warnings Commandlist warnings Command
In this section, we discuss commands used to work with MySQL Cluster Manager
management sites. In addition, the stop
agents, show settings,
version, and
show warnings commands, which
relate to management agents, are also covered in this section.
A site, in terms of MySQL NDB Cluster and MySQL Cluster Manager, is a collection of one or more host computers where MySQL Cluster Manager agents are running. Each agent is identified by the combination of two pieces of information:
The hostname or IP address of the machine where the agent is running
The number of the port used by the agent for communications
MySQL NDB Cluster makes extremely intensive use of network connections, and DNS lookups can contend with MySQL NDB Cluster and MySQL Cluster Manager for bandwidth, resulting in a negative impact on the performance of MySQL NDB Cluster and the applications using it. For this reason, we recommend that you use numeric IP addresses rather than hostnames for MySQL NDB Cluster and MySQL Cluster Manager host computers whenever feasible.