Sensu plugin for monitoring the number of allocated file handles

A sensu plugin to monitor the number of allocated file handles (file descriptors) on a system.

Files

• bin/check-filenr.rb
• bin/metrics-filenr.rb

Usage

check-filenr.rb

The plugin accepts the following command line options:

Usage: check-filenr.rb (options)
    -c, --critical <NR>              Critical if NR exceeds the current number of file handles (default: 383786)
    -w, --warn <NR>                  Warn if NR exceeds current number of file handles (default: 345407)

The default critical value is set to the fs.file-max (/proc/sys/fs/file-max), whereas the warning is set to 90% of the file-max value.

metrics-filenr.rb

Usage: metrics-filenr.rb (options)
    -s, --scheme SCHEME              Metric naming scheme, text to prepend to queue_name.metric

Author

Matteo Cerutti - matteo.cerutti@hotmail.co.uk