
# make sure mysql is running

template: mysql_last_collected_secs
      on: mysql.queries
    calc: $now - $last_collected_t
   units: seconds ago
   every: 10s
    warn: $this > (($status >= $WARNING)  ? ($update_every) : ( 5 * $update_every))
    crit: $this > (($status == $CRITICAL) ? ($update_every) : (60 * $update_every))
   delay: down 5m multiplier 1.5 max 1h
    info: number of seconds since the last successful data collection
      to: dba


# -----------------------------------------------------------------------------
# slow queries

template: mysql_10s_slow_queries
      on: mysql.queries
  lookup: sum -10s of slow_queries
   units: slow queries
   every: 10s
    warn: $this > (($status >= $WARNING)  ? (5)  : (10))
    crit: $this > (($status == $CRITICAL) ? (10) : (20))
   delay: down 5m multiplier 1.5 max 1h
    info: number of mysql slow queries over the last 10 seconds
      to: dba


# -----------------------------------------------------------------------------
# lock waits

template: mysql_10s_table_locks_immediate
      on: mysql.table_locks
  lookup: sum -10s absolute of immediate
   units: immediate locks
   every: 10s
    info: number of table immediate locks over the last 10 seconds
      to: dba

template: mysql_10s_table_locks_waited
      on: mysql.table_locks
  lookup: sum -10s absolute of waited
   units: waited locks
   every: 10s
    info: number of table waited locks over the last 10 seconds
      to: dba

template: mysql_10s_waited_locks_ratio
      on: mysql.table_locks
    calc: ( ($mysql_10s_table_locks_waited + $mysql_10s_table_locks_immediate) > 0 ) ? (($mysql_10s_table_locks_waited * 100) / ($mysql_10s_table_locks_waited + $mysql_10s_table_locks_immediate)) : 0
   units: %
   every: 10s
    warn: $this > (($status >= $WARNING)  ? (10) : (25))
    crit: $this > (($status == $CRITICAL) ? (25) : (50))
   delay: down 30m multiplier 1.5 max 1h
    info: the ratio of mysql waited table locks, for the last 10 seconds
      to: dba


# -----------------------------------------------------------------------------
# connections

template: mysql_connections
      on: mysql.connections_active
    calc: $active * 100 / $limit
   units: %
   every: 10s
    warn: $this > (($status >= $WARNING)  ? (60) : (70))
    crit: $this > (($status == $CRITICAL) ? (80) : (90))
   delay: down 15m multiplier 1.5 max 1h
    info: the ratio of current active connections vs the maximum possible number of connections
      to: dba


# -----------------------------------------------------------------------------
# replication

template: mysql_replication
      on: mysql.slave_status
    calc: ($sql_running == -1 OR $io_running == -1)?0:1
   units: ok/failed
   every: 10s
    crit: $this == 0
   delay: down 5m multiplier 1.5 max 1h
    info: checks if mysql replication has stopped
      to: dba

template: mysql_replication_lag
      on: mysql.slave_behind
    calc: $seconds
   units: seconds
   every: 10s
    warn: $this > (($status >= $WARNING)  ? (5)  : (10))
    crit: $this > (($status == $CRITICAL) ? (10) : (30))
   delay: down 15m multiplier 1.5 max 1h
    info: the number of seconds mysql replication is behind this master
      to: dba


# -----------------------------------------------------------------------------
# galera cluster size

template: mysql_galera_cluster_size_max_2m
      on: mysql.galera_cluster_size
  lookup: max -2m absolute
   units: nodes
   every: 10s
    info: max cluster size 2 minute
      to: dba

template: mysql_galera_cluster_size
      on: mysql.galera_cluster_size
    calc: $nodes
   units: nodes
   every: 10s
    warn: $this > $mysql_galera_cluster_size_max_2m
    crit: $this < $mysql_galera_cluster_size_max_2m
   delay: up 20s down 5m multiplier 1.5 max 1h
    info: cluster size has changed
      to: dba

# galera node state

template: mysql_galera_cluster_state
      on: mysql.galera_cluster_state
    calc: $state
   every: 10s
    warn: $this < 4
    crit: $this < 2
   delay: up 30s down 5m multiplier 1.5 max 1h
    info: node state (0: undefined, 1: joining, 2: donor/desynced, 3: joined, 4: synced)
      to: dba


# galera node status

template: mysql_galera_cluster_status
      on: mysql.galera_cluster_status
    calc: $wsrep_cluster_status
   every: 10s
    crit: $mysql_galera_cluster_state != nan AND $this != 0
   delay: up 30s down 5m multiplier 1.5 max 1h
    info: node and cluster status (-1: unknown, 0: primary/quorum present, 1: non-primary/quorum lost, 2: disconnected)
      to: dba
