[Xymon] wrong memory report with free command from procps-ng

Hi,

Using Xymon 4.3.19, we noticed that all our RHEL 7 systems are reporting wrong values.

These systems now use free from procps-ng 3.3.10 whose output has changed.

-- free output on RHEL 5/6 ---

[bb at prdexp ~]$ free

         total       used       free     shared    buffers     cached

Mem: 65916528 63391732 2524796 1376104 1484472 47773272 -/+ buffers/cache: 14133988 51782540 Swap: 16777212 180816 16596396

--- free output on RHEL 7 ---

[bb at hns ~]$ free total used free shared buff/cache available Mem: 8011888 318844 3365516 98788 4327528 7275020 Swap: 8388604 0 8388604

The "-/+ buffers/cache:" has disappeared, the "used" is now calculated as total - free - buffers - cache, and there is an "available" column which is an "Estimation of how much memory is available for starting new applications, without swapping".

The man page details all that.

Dominique

University of Lausanne