Re: 2.1, what happens when running on Bamboo? On Mar 8, 2012, at 4:04 PM, Jack Royal-Gordon wrote:
> Followup questions relating to question #2: > > 2.1) In the scenario addressed in question 2 below, would the two tasks run > in the same dyno, or does Heroku spin up another dyno for the second task? I > thought I had read that the scheduled task would allocate dynos from the pool > of dynos allocated for web and worker processes -- are you saying that > scheduled jobs always result in additional dynos being spun up? > > 2.2) Besides the obvious performance issues of the two > simultaneously-scheduled tasks competing for access to the database (and the > possible locking deadlocks that could occur), should I expect to see > performance issues with two scheduled tasks running simultaneously (e.g. will > the two scheduled tasks be competing for CPU cycles as though they were > running in the same dyno)? > > On Mar 8, 2012, at 1:04 PM, Mark Pundsack wrote: > >> On Mar 8, 2012, at 1:00 PM, Jack R-G wrote: >> >>> 1) The dashboard seems to offer only 30-minute increments on daily process >>> scheduling times. Is there a way to schedule for times not on the >>> half-hour (e.g. 8:15 UTC)? >> >> Sorry, no. >> >>> 2) What happens if a task scheduled to start at 8:00 is still running at >>> 8:30 and there is a task scheduled for 8:30? If you are running the >>> minimal (one-dyno) configuration, what will happen? If in this situation >>> Heroku will not execute the two tasks concurrently, will Heroku Scheduler >>> start the 8:30 task when the 8:00 task completes, or will it simply bypass >>> the 8:30 task? >> >> Scheduler will start the second task at 8:30, regardless whether the first >> task has finished or not. If each task takes a long time, this will result >> in a LOT of dyno hour usage. >> >> -- >> You received this message because you are subscribed to the Google Groups >> "Heroku" group. >> To post to this group, send email to [email protected]. >> To unsubscribe from this group, send email to >> [email protected]. >> For more options, visit this group at >> http://groups.google.com/group/heroku?hl=en. >> >> > > -- > You received this message because you are subscribed to the Google Groups > "Heroku" group. > To post to this group, send email to [email protected]. > To unsubscribe from this group, send email to > [email protected]. > For more options, visit this group at > http://groups.google.com/group/heroku?hl=en. > > -- You received this message because you are subscribed to the Google Groups "Heroku" group. To post to this group, send email to [email protected]. To unsubscribe from this group, send email to [email protected]. For more options, visit this group at http://groups.google.com/group/heroku?hl=en.
