Interactive publication
Back to the catalogueClocksCase 02 of 10
Clock-correction jumps
After synchronization, NTP can step a clock several seconds backwards (rather than slewing), so consecutive events straddle a discontinuity and can invert in order.
Class
Case to account for
Affects
1 conversion
01
Detection
A sudden multi-second backwards (or forwards) jump in an otherwise smooth series.
02
Mitigation
01
Prefer slewed clocks; for ordering use a monotonic source or a hybrid logical clock.
03
Affected conversions
Timestamp + zonehour-of-week slot
OPEN