okkey.........then let me check the code and report back On Wednesday, January 8, 2014 10:14:45 PM UTC+1, Brian M wrote: > > I've got it scheduled to repeat every 86400 seconds (24*60*60) so once a > day. I thought that it was supposed to keep the same start time like the > book says but it has definitely been drifting - part of the task that's > queued logs to a DB and I can see the timestamps there consistently > drifting ~20 seconds later each day. I had another task originally setup > to send out a daily email at 9AM and it's drifted to going out around > 9:32AM over the last several months. > > On Wednesday, January 8, 2014 1:52:31 PM UTC-6, Niphlod wrote: >> >> I don't exactly get how you scheduled the tasks and how are you expecting >> them to run. >> If you schedule a task to start at 10am and set a period of 24*60*60, the >> task will be "requeued" to be executed at 10am. >> As the book says, >> >> *The time period is not calculated between the END of the first round and >> the START of the next, but from the START time of the first round to the >> START time of the next cycle)* >> >> >> >> On Wednesday, January 8, 2014 5:10:38 PM UTC+1, Brian M wrote: >>> >>> Is there any way to keep the time at which recurring tasks run from >>> drifting? I've got several daily tasks that over time go from running at >>> say 10am to 10:30am - it seems like each consecutive run is 20 seconds or >>> so behind the previous day's. Is this simply a matter of the next execution >>> time being set based on the ending time of the current run rather than the >>> starting time? If I want to better enforce running at a certain time daily >>> do I need to resort to having a maintenance task run say once a week and >>> reset the next run time of the daily tasks so they don't drift too far? I >>> suppose that this isn't too much of an issue for tasks that run on a more >>> regular basis like once a minute to process constantly updated queues, but >>> for things that you want to run at a certain set time it's a bit annoying. >>> >>> Thanks >>> Brian >>> >>
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