check_mysql_health Monitoring MySQL Instance Using Nagios | Tech Arkit





  • connection-time: Time to connect to the server
  • uptime     : Time the server is running
  • threads-connected    : Number of currently open connections
  • threadcache-hitrate  : Hit rate of the thread-cache
  • threads-created: Number of threads created per sec
  • threads-running: Number of currently running threads
  • threads-cached : Number of currently cached threads
  • connects-aborted: Number of aborted connections per sec
  • clients-aborted: Number of aborted connections : because the client died per sec
  • slave-lag  : Seconds behind master
  • slave-io-running: Slave io running: Yes
  • slave-sql-running    : Slave sql running: Yes
  • qcache-hitrate : Query cache hitrate
  • qcache-lowmem-prunes : Query cache entries pruned because of low memory
  • keycache-hitrate: MyISAM key cache hitrate
  • bufferpool-hitrate   : InnoDB buffer pool hitrate
  • bufferpool-wait-free : InnoDB buffer pool waits for clean page available
  • log-waits  : InnoDB log waits because of a too small log buffer
  • tablecache-hitrate   : Table cache hitrate
  • table-lock-contention: Table lock contention
  • index-usage: Usage of indices
  • tmp-disk-tables: Percent of temp tables created on disk
  • table-fragmentation  : Show tables which should be optimized
  • open-files : Percent of opened files
  • slow-queries   : Slow queries
  • long-running-procs   : long running processes
  • cluster-ndbd-running : ndnd nodes are up and running
  • sql        : any sql command returning a single number

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Monitoring MySQL / MariaDB Databases Nagios | MySQL Instance status | Te...





This monitoring script connects to database, does 'SELECT VERSION' and then

'SHOW STATUS' or 'SHOW GLOBAL STATUS' (for version 5.0.2 or newer of mysql)

or other query you specify with '-q'. It then allows to select variables

from 'SHOW STATUS' and check them against critical and warning thresholds(s)

Status data can also be used for performance output.



Scripts: https://github.com/techarkit/shell-scripting-tutorial



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