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MariaDB monitoring

MariaDB is monitored through the MySQL platform in ClusterEye — the connection method, required privileges and collected metrics are identical to MySQL. The agent connects with a read-only account and gathers query digests, lock waits and replication state from performance_schema and InnoDB status. Versions: MariaDB 10.3 — 11.4.

Agent-basedDefault port: 3306Versions: 10.3 — 11.4

What we read

SHOW GLOBAL STATUS and SHOW GLOBAL VARIABLES — throughput and configuration state
performance_schema.events_statements_summary_by_digest — query digest statistics
SHOW ENGINE INNODB STATUS — buffer pool, row locks and deadlock information
performance_schema.data_locks and data_lock_waits — lock wait chains
Replication status views — lag and applier thread state
SHOW PROCESSLIST — active sessions and long-running queries
table_io_waits_summary_by_index_usage — index usage

What it does on MariaDB

The same query analysis as MySQL

Digest-based grouping, prioritisation and Safe EXPLAIN all apply to MariaDB, with no separate install or configuration.

InnoDB and lock visibility

Buffer pool behaviour, row lock waits and deadlocks appear in the same panels.

Replication tracking

Replica lag and applier state are tracked; disconnects and reconnects land on the timeline.

Minimum privileges required

The baseline is read-only and safe to grant in production.

sql
CREATE USER 'clustereye'@'<agent-host>' IDENTIFIED BY '<strong-password>';
GRANT PROCESS, REPLICATION CLIENT ON *.* TO 'clustereye'@'<agent-host>';
GRANT SELECT ON performance_schema.* TO 'clustereye'@'<agent-host>';

-- optional: Safe EXPLAIN on application tables
GRANT SELECT ON <app_schema>.* TO 'clustereye'@'<agent-host>';

Prerequisites

·my.cnf: performance_schema = ON (not dynamic, restart required)
·No separate grant is needed for information_schema
·SUPER or SYSTEM_VARIABLES_ADMIN are not required
Install and privilege details →

Frequently asked questions

No. The agent is installed with the mysql platform (-p mysql) and connects to MariaDB the same way. Privileges are identical: PROCESS, REPLICATION CLIENT and SELECT on performance_schema.

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