The key is to combine cron jobs with Tasks. Tasks are am easy to use and powerful feature of Google Appengine that let you deal with the standard limitations.

The key is to combine cron jobs with Tasks. Tasks are am easy to use and powerful feature of Google Appengine that let you deal with the standard limitations. For example, rather than doing some operation on 1000 entities in one request, you spin off 1000 tasks, each handling the operation on one entity. Read up about them at http://code.google.com/appengine/docs/python/taskqueue/ http://code.google.com/appengine/docs/python/taskqueue/ You can also explore the new Mapper API at http://blog.notdot.net/2010/05/Exploring-the-new-mapper-API http://blog.notdot.net/2010/05/Exploring-the-new-mapper-API