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check_memcached_key.pl (Advanced Nagios Plugins Collection)

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Compatible With
  • Nagios 1.x
  • Nagios 2.x
  • Nagios 3.x
  • Nagios XI
Network Monitoring Software - Download Nagios XI
Log Management Software - Nagios Log Server - Download
Netflow Analysis Software - Nagios Network Analyzer - Download
Checks a specific Memcached key via API


1. reads a specified Memcached key
2. checks key's returned value against expected regex (optional)
3. checks key's returned value against warning/critical range thresholds (optional)
raises warning/critical if the value is outside thresholds or not a floating point number
4. records the read timing to a given precision for reporting and graphing
5. outputs the read timing and optionally the key's value for graphing purposes
Part of the Advanced Nagios Plugins Collection.

Download it here:


usage: check_memcached_key.pl [ options ]

-H --host Host to connect to
-P --port Port to connect to (default: 11211)
-k --key Key to read from Memcached
-e --expected Expected regex for the given Memcached key's value. Optional
-w --warning Warning threshold ra:nge (inclusive) for the key's value. Optional
-c --critical Critical threshold ra:nge (inclusive) for the key's value. Optional
-g --graph Graph key's value. Optional, use only if a floating point number is normally returned for it's values, otherwise will print NaN (Not a Number). The reason this is not determined automatically is because keys that change between floats and non-floats will result in variable numbers of perfdata tokens which will break PNP4Nagios
-u --units Units to use if graphing key's value. Optional
--precision Number of decimal places for timings (default: 5)
-h --help Print description and usage options
-t --timeout Timeout in secs (default: 10)
-v --verbose Verbose mode (-v, -vv, -vvv ...)
-V --version Print version and exit