MySQL

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Connectors directory^[1] Full listing of connectors^[2]

Description

Monitors performance and operational metrics for a MySQL database.

community^[3] database^[4] linux^[5] windows^[6]

Source^[7]

Target

Typical platform: MySQL^[8]

Operating systems: Microsoft Windows, Linux

Prerequisites

Leverages: MySQL Database version 8.0 or higher

Technology and protocols: SQL/JDBC

Examples

CLI

metricshub HOSTNAME -t win -c +MySQL --jdbc -u USER --jdbc-url URL

metricshub.yaml

resourceGroups:
  <RESOURCE_GROUP>:
    resources:
      <HOSTNAME-ID>:
        attributes:
          host.name: <HOSTNAME> # Change with actual host name
          host.type: win
        connectors: [ +MySQL ] # Optional, to load only this connector
        protocols:
          jdbc:
            port: <PORT>
            database: <DB_NAME>
            type: <type>
            url: <URL>
            username: <USERNAME> # Change with actual credentials
            password: <PASSWORD> # Encrypted using metricshub-encrypt

Connector Activation Criteria

The MySQL connector will be automatically activated, and its status will be reported as OK if all the below criteria are met:

The SQL query below succeeds on the monitored database:

Metrics

Type	Collected Metrics	Specific Attributes
mysql	`db.server.active_connections` `db.server.cache.operations{db.io.direction="read", db.cache.state="hit", db.mysql.engine="innodb"}` `db.server.cache.operations{db.io.direction="read", db.cache.state="miss", db.mysql.engine="innodb"}` `db.server.cache.operations{db.io.direction="write", db.mysql.engine="innodb"}` `db.server.cache.read_ahead.operations{db.cache.read_ahead.state="random", db.mysql.engine="innodb"}` `db.server.cache.read_ahead{db.mysql.engine="innodb"}` `db.server.cache.read_head.evicted{db.mysql.engine="innodb"}` `db.server.cache.requests{db.cache.request.type="flushed", db.mysql.engine="innodb"}` `db.server.cache.usage{db.cache.state="data_clean", db.mysql.engine="innodb"}` `db.server.cache.usage{db.cache.state="data_dirty", db.mysql.engine="innodb"}` `db.server.cache.usage{db.cache.state="free", db.mysql.engine="innodb"}` `db.server.connections{db.connection.state="success"}` `db.server.connections{error.type="client_disconnected", db.connection.state="aborted"}` `db.server.connections{error.type="failed_attempt", db.connection.state="aborted"}` `db.server.errors{error.type="lost_account_insert", db.mysql.engine="performance_schema"}` `db.server.errors{error.type="lost_condition_instrument", db.mysql.engine="performance_schema"}` `db.server.errors{error.type="lost_digest_instance", db.mysql.engine="performance_schema"}` `db.server.errors{error.type="lost_file_handle", db.mysql.engine="performance_schema"}` `db.server.errors{error.type="lost_file_instance", db.mysql.engine="performance_schema"}` `db.server.errors{error.type="lost_file_instrument", db.mysql.engine="performance_schema"}` `db.server.errors{error.type="lost_hosts_insert", db.mysql.engine="performance_schema"}` `db.server.errors{error.type="lost_index_statistic", db.mysql.engine="performance_schema"}` `db.server.errors{error.type="lost_locker", db.mysql.engine="performance_schema"}` `db.server.errors{error.type="lost_memory_instrument", db.mysql.engine="performance_schema"}` `db.server.errors{error.type="lost_metadata_lock", db.mysql.engine="performance_schema"}` `db.server.errors{error.type="lost_mutex_instance", db.mysql.engine="performance_schema"}` `db.server.errors{error.type="lost_mutex_instrument", db.mysql.engine="performance_schema"}` `db.server.files{db.file.state="open", db.mysql.engine="innodb"}` `db.server.io{db.io.direction="read", db.mysql.engine="innodb"}` `db.server.io{db.io.direction="read"}` `db.server.io{db.io.direction="write", db.mysql.engine="innodb"}` `db.server.io{db.io.direction="write"}` `db.server.mysql.doublewrite_buffer.operations{db.mysql.engine="innodb"}` `db.server.mysql.doublewrite_buffer.usage{db.mysql.engine="innodb"}` `db.server.operations{db.io.direction="read", db.mysql.engine="innodb"}` `db.server.operations{db.io.direction="write", db.mysql.engine="innodb"}` `db.server.page.size{db.mysql.engine="innodb"}` `db.server.pending_operations{db.io.direction="read", db.mysql.engine="innodb"}` `db.server.pending_operations{db.io.direction="write", db.mysql.engine="innodb"}` `db.server.queries{db.query.state="failed", error.type="set_timeout_failed"}` `db.server.queries{db.query.state="failed", error.type="timeout"}` `db.server.queries{db.query.state="normal"}` `db.server.queries{db.query.state="slow"}` `db.server.row_lock.current_waits{db.mysql.engine="innodb"}` `db.server.row_lock.time{db.mysql.engine="innodb"}` `db.server.row_lock.waits{db.mysql.engine="innodb"}` `db.server.row_operations{db.row_operation.type="delete", db.mysql.engine="innodb"}` `db.server.row_operations{db.row_operation.type="insert", db.mysql.engine="innodb"}` `db.server.row_operations{db.row_operation.type="read", db.mysql.engine="innodb"}` `db.server.row_operations{db.row_operation.type="update", db.mysql.engine="innodb"}` `db.server.tables` `db.server.threads{db.thread.state="cached"}` `db.server.threads{db.thread.state="connected"}` `db.server.threads{db.thread.state="created"}` `db.server.threads{db.thread.state="running"}` `db.server.uptime`	`db.namespace` `db.system` `db.version` `id`

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