Home-AssistantConfig/config/packages/mariadb_monitoring.yaml

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# @CCOSTAN - Follow Me on X
# For more info visit https://www.vcloudinfo.com/click-here
# Original Repo : https://github.com/CCOSTAN/Home-AssistantConfig
# -------------------------------------------------------------------
# MariaDB Monitoring - SQL sensor bundle for DB health
#  Recorder-backed metrics for MariaDB performance and capacity checks.
# -------------------------------------------------------------------
# Notes: Uses SQL integration against recorder_db_url.
# Notes: COUNT(*) queries run every 6h; increase scan_interval or disable if slow.
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sql:
  - name: "MariaDB Status"
    db_url: !secret recorder_db_url
    query: >-
      SELECT 'running' as status
      FROM information_schema.GLOBAL_STATUS
      WHERE VARIABLE_NAME = 'Uptime'
        AND CAST(VARIABLE_VALUE AS UNSIGNED) > 0;      
    column: "status"
    value_template: "{{ value if value else 'stopped' }}"

  - name: "MariaDB Version"
    db_url: !secret recorder_db_url
    query: >-
            SELECT @@version as version;
    column: "version"

  - name: "MariaDB Performance"
    db_url: !secret recorder_db_url
    query: >-
      SELECT ROUND(
        (SELECT VARIABLE_VALUE
         FROM information_schema.GLOBAL_STATUS
         WHERE VARIABLE_NAME = 'Queries') /
        (SELECT VARIABLE_VALUE
         FROM information_schema.GLOBAL_STATUS
         WHERE VARIABLE_NAME = 'Uptime')
      ) as performance;      
    column: "performance"
    unit_of_measurement: "q/s"

  - name: "Database Size"
    db_url: !secret recorder_db_url
    query: >-
      SELECT ROUND(SUM(data_length + index_length) / 1024 / 1024, 2) as size
      FROM information_schema.tables
      WHERE table_schema = 'homeassistant';      
    column: "size"
    unit_of_measurement: "MB"
    value_template: "{{ value | float(0) }}"

  - name: "Database Tables Count"
    db_url: !secret recorder_db_url
    query: >-
      SELECT COUNT(*) as count
      FROM information_schema.tables
      WHERE table_schema = 'homeassistant';      
    column: "count"
    unit_of_measurement: "tables"

  - name: "Database Oldest Record"
    db_url: !secret recorder_db_url
    query: >-
      SELECT DATE_FORMAT(FROM_UNIXTIME(MIN(last_updated_ts)), '%Y-%m-%d') as oldest
      FROM states;      
    column: "oldest"

  - name: "Database Total Records"
    db_url: !secret recorder_db_url
    query: >-
      SELECT COUNT(*) as count
      FROM states;      
    column: "count"
    unit_of_measurement: "records"

  - name: "Database Records Per Day"
    db_url: !secret recorder_db_url
    query: >-
      SELECT ROUND(
        COUNT(*) /
        GREATEST(DATEDIFF(NOW(), FROM_UNIXTIME(MIN(last_updated_ts))), 1),
        0
      ) as avg
      FROM states;      
    column: "avg"
    unit_of_measurement: "records/day"

  - name: "MariaDB Uptime"
    db_url: !secret recorder_db_url
    query: >-
      SELECT VARIABLE_VALUE as value
      FROM information_schema.GLOBAL_STATUS
      WHERE VARIABLE_NAME = 'Uptime';      
    column: "value"
    unit_of_measurement: "seconds"

  - name: "MariaDB Connections"
    db_url: !secret recorder_db_url
    query: >-
      SELECT VARIABLE_VALUE as value
      FROM information_schema.GLOBAL_STATUS
      WHERE VARIABLE_NAME = 'Threads_connected';      
    column: "value"
    unit_of_measurement: "connections"

  - name: "MariaDB Questions"
    db_url: !secret recorder_db_url
    query: >-
      SELECT VARIABLE_VALUE as value
      FROM information_schema.GLOBAL_STATUS
      WHERE VARIABLE_NAME = 'Questions';      
    column: "value"
    unit_of_measurement: "queries"

  - name: "MariaDB Buffer Pool Size"
    db_url: !secret recorder_db_url
    query: >-
            SELECT CONCAT(ROUND(@@innodb_buffer_pool_size / 1024 / 1024 / 1024, 1), ' GB') as value;
    column: "value"

  - name: "MariaDB Max Connections"
    db_url: !secret recorder_db_url
    query: >-
            SELECT @@max_connections as value;
    column: "value"

  - name: "MariaDB Log File Size"
    db_url: !secret recorder_db_url
    query: >-
            SELECT CONCAT(ROUND(@@innodb_log_file_size / 1024 / 1024, 0), ' MB') as value;
    column: "value"

  - name: "MariaDB Tmp Table Size"
    db_url: !secret recorder_db_url
    query: >-
            SELECT CONCAT(ROUND(@@tmp_table_size / 1024 / 1024, 0), ' MB') as value;
    column: "value"

  - name: "MariaDB IO Capacity"
    db_url: !secret recorder_db_url
    query: >-
            SELECT @@innodb_io_capacity as value;
    column: "value"

  - name: "MariaDB IO Threads"
    db_url: !secret recorder_db_url
    query: >-
      SELECT CONCAT(
        'Read: ', @@innodb_read_io_threads,
        ', Write: ', @@innodb_write_io_threads
      ) as value;      
    column: "value"

  - name: "MariaDB Table Cache"
    db_url: !secret recorder_db_url
    query: >-
            SELECT @@table_open_cache as value;
    column: "value"

  - name: "MariaDB Buffer Sizes"
    db_url: !secret recorder_db_url
    query: >-
      SELECT CONCAT(
        'Sort: ', ROUND(@@sort_buffer_size / 1024 / 1024, 0), 'M, ',
        'Read: ', ROUND(@@read_buffer_size / 1024 / 1024, 0), 'M, ',
        'Join: ', ROUND(@@join_buffer_size / 1024 / 1024, 0), 'M'
      ) as value;      
    column: "value"