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Cluster

Table of Contens


About Cluster

A high availability Cluster is a bunch of machines or services which provide together a service typically for an application. They are grouped together to primarily provide a high availability service (HA). In some rare cases you also get some performance befits of a HA Cluster.

Ops Center actually can operate:

  • Master/Slave Replication Clusters,
  • Master/Master Replication Clusters and
  • Galera Clusters.

Adding a new Cluster

To add a new Cluster to the Ops Center click on the Cluster item in the menu on the left and then click the Add Cluster button:

Choose a unique and descriptive Cluster Name and select the Cluster Type. You can choose between: Master/Slave, Master/Master and Galera Cluster.

Depending on the choosen Cluster Type the following fields may be different...

In the mask to add or edit a replication you have to enter:

  • which database is the master.
  • which databases are Slaves and specify their specific master.

Replication overview

In the replication overview you can see all the replication set-ups you have under Ops Center control:

Replication overview

Replication configuration overview

In the replication configuration overview you edit or delete a replication again or just remove one slave:

Replication checks

In the replication checks tab you get all the important information of the master and all its slaves:

Replication checks

Replication operations

In the replication operations tab you get a short overview over the master and the slave and you can run some control commands for the slave like:

  • Stopping slave
  • Change slave to new master
  • Skip events on slave
  • Reset slave and
  • Start slave

Replication operations

Change Master

When you set-up a new slave or when you want to change a slave to a new master you have to click the Change Master operations option. Then you get the possibility for changing all the connect parameters for a new master:

Change master

Master/Slave and Master/Master Cluster

Coming soon...

Galera Cluster

Coming soon...