Kbase P131293: Do implementing Network Time Protocol represent a problem for Progress Databases or Applications?
| Autor |
Progress Software Corporation - Progress |
| Acesso |
Público |
| Publicação |
08/05/2008 |
|
Status: Unverified
GOAL:
Do implementing Network Time Protocol represent a problem for Progress Databases or Applications?
FACT(s) (Environment):
OpenEdge 10.x
FIX:
Not so long as the Network Time Protocol (NTP) setup works properly.
Among other things, it should not move the clock backward when it is ahead. Time should only move forward.
Instead it should retard its speed of advancement (frequency of refreshment of the Atomic Clock). Many applications will break if the clock moves backward.
The database compensates for the clock moving backward by maintaining a virtual clock for aging transaction log clusters.
However: 4GL applications can be adversely affected by the clock moving backward. Depending on what activity they are doing.