Hi all, I've written an application that does some work every X minutes/seconds for each entity of an entity type in the datastore. Currently this is done by running an cron job and calculating the next runtime for each entity and enqueing tasks with delays so that they are run at the appropriate time. But it's hard to be flexible about the interval that tasks can be run when the cron intervals are hard coded. Also, cron sometimes fails to run and I'd like the application to be more robust.
It would be easy to chain the tasks for each entity forever and simply not run and die if the entity is removed from the datastore, but I'm worried about a situation where the task would get dequeued for some reason. In that case all subsequent tasks for that entity wouldn't be run. I'd like to combine the task queue and cron and chain tasks but have cron check every so often to make sure the tasks are still enqueued. Is there a way for the application to check if a task is enqueued in the task queue? -- Ian http://www.ianlewis.org/ -- You received this message because you are subscribed to the Google Groups "Google App Engine" group. To post to this group, send email to google-appeng...@googlegroups.com. To unsubscribe from this group, send email to google-appengine+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-appengine?hl=en.
