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Monitoring the cluster

Each node can have a different view of the cluster. There is no centralized node to monitor. To track down the source of issues, you have to monitor each node independently.

Values of many variables depend on the node from which you are querying. For example, replication sent from a node and writes received by all other nodes.

Having data from all nodes can help you understand where flow messages are coming from, which node sends excessively large transactions, and so on.

Manual Monitoring

Manual cluster monitoring can be performed using myq-tools.


Besides standard MySQL alerting, you should use at least the following triggers specific to Percona XtraDB Cluster:

For additional alerting, consider the following:


Cluster metrics collection for long-term graphing should be done at least for the following:

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