nagios-plugins-for-linux

What's new in this release

Enhancements

check_cpufreq

New plugin.

check_cpu

New option --per-cpu for checking the CPU utilization for each CPU. A warning message is returned if at least one CPU exceeds the warning threshold and no CPU exceed the critical state. A critical message is returned if at least one CPU exceeds the critical threshold. The option --cpufreq has been removed because this information is now provided by the new plugin _checkcpufreq.

Bug Fixes

check_multipath

The regular expression that catches the failed paths has been fixed. This bug prevented the plugin from working correctly.

Global

Improved code quality based on the Coverity scan analysis. Minor fixes in the building system to make the Travis-CI Continuous Integration work. The overall portability should have been improved.

What's new in this release

check_memory

This plugin has been enhanced by the inclusion of some ideas that have been recently posted in the procps mailing list. As a result thereof, the memory usage calculation is now more accurate.

The option -a|--available, that gives an estimation of the available memory for starting new applications without swapping (based on a new kernel 3.14 feature), now requires a kernel 2.6.27 or above as a MemAvailable fall-back code has been implemented.
For older kernels MemFree is returned instead. The command line option -C|--caches is now ignored but still accepted for compatibility.

check_cpu

The perfdata counters _cpuuser, _cpu_system, _cpuidle, _cpuiowait, and _cpusteal, gain one decimal digit. A new command line option is now available (-m|--no-cpu-model) for removing the cpu model description from the output message.

As usual, bug reports, feature requests, and ideas for improvements are welcome!

What's new in this release

This is mainly a bugfix release and it contains the following changes and some other minor fixes:

check_users: new --verbose mode, for debugging.

check_uptime: new option -m|--clock-monotonic for retrieving the time of the linux monotonic clock instead of using the system statistics returned by sysinfo().

check_clock: option --refclock: validate the input instead of returning crap when the date format is unsupported.

check_readonlys: do not dereference a null pointer string in the output message when no readonly filesystems are detected.