Werk #5830

KomponenteCore & Setup
TitelFixed DST shift correction for downtimes, causing CMC to use 100% CPU
Datum2018-04-04 13:02:39
Check_MK EditionCheck_MK Enterprise Edition (CEE)
Check_MK Version1.4.0p28,1.5.0b1
Level2 - Wichtige Änderung
KlasseBug Fix
KompatibilitätCompatible - no manual interaction needed

When a downtime was configured to recur every hour and a 1h DST shift happened, the CMC would go into an infinite loop with 100% CPU load and no monitoring at all. If the downtime in question was set in an ad hoc fashion via the GUI (not via rules), the only way to work around this issue was to remove the state file, losing all downtimes, acknowledgements and comments.