[pve-devel] [PATCH manager] Jobs: don't schedule jobs with no computable next event

[Dominik Csapak <d.csapak@proxmox.com>]

if we have a schedule that has no 'next event' we should skip the scheduling
instead of schedule every round

this can happen if someone sets an schedule that has no next match.
some examples:
* 2-31 00:00 (there is not February 31st)
* mon 2022-04-02 (this would be a saturday, not monday)
* 1970-1-1 (or every other exact date in the past)

Signed-off-by: Dominik Csapak <d.csapak@proxmox.com>
---
 PVE/Jobs.pm | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/PVE/Jobs.pm b/PVE/Jobs.pm
index ba3685ec..da648630 100644
--- a/PVE/Jobs.pm
+++ b/PVE/Jobs.pm
@@ -232,9 +232,9 @@ sub run_jobs {
 
 	my $last_run = get_last_runtime($id, $type);
 	my $calspec = PVE::CalendarEvent::parse_calendar_event($schedule);
-	my $next_sync = PVE::CalendarEvent::compute_next_event($calspec, $last_run) // 0;
+	my $next_sync = PVE::CalendarEvent::compute_next_event($calspec, $last_run);
 
-	next if time() < $next_sync; # not yet its (next) turn
+	next if !defined($next_sync) || time() < $next_sync; # not yet its (next) turn
 
 	my $plugin = PVE::Jobs::Plugin->lookup($type);
 	if (starting_job($id, $type)) {
-- 
2.30.2