[ClusterLabs] Antw: [EXT] Coming in Pacemaker 2.0.4: dependency on monotonic clock for systemd resources

Ulrich Windl Ulrich.Windl at rz.uni-regensburg.de
Wed Mar 11 03:20:07 EDT 2020

>>> Ken Gaillot <kgaillot at redhat.com> schrieb am 10.03.2020 um 18:49 in
mel at redhat.com>:
> Hi all,
> This is not a big deal but I wanted to give a heads‑up for anyone who
> builds their own pacemaker packages.
> With Pacemaker 2.0.4 (first release candidate expected next month), we
> are finally replacing our calls to the long‑deprecated ftime() system
> call with the "modern" clock_gettime().
> As part of this, building pacemaker with support for systemd‑class
> resources will now require that the underlying platform supports
> clock_gettime() with CLOCK_MONOTONIC. Every platform we're aware of
> that is used for pacemaker does, so this should not be an issue. The
> configure script will automatically determine whether support is
> available.

You only have to take care not to compare CLOCK_MONOTONIC timestamps between
nodes or node restarts. 

> ‑‑ 
> Ken Gaillot <kgaillot at redhat.com>
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