I have a caching logic for datastore entities, the cache was invalidating elements when changes are applied to the entity The logic was if change_time>cache_item_created: delete cache_item It also checks whether the cache_item has been applied before and logs an error if it does
I've been seeing the errors pop up, but it's always between datetime's that differ only by 2-3 seconds Than I remembered a *really* old discussion about instance time differences and it seems that the cause of these 2-3 second differences is instance time differences Could this be the case? I'm thinking of logging an error only-if the difference is >some_seconds, however unsure how many seconds that should be, is there an upper limit to this time difference, if it exists? -- You received this message because you are subscribed to the Google Groups "Google App Engine" group. To unsubscribe from this group and stop receiving emails from it, send an email to google-appengine+unsubscr...@googlegroups.com. To post to this group, send email to google-appengine@googlegroups.com. Visit this group at http://groups.google.com/group/google-appengine. For more options, visit https://groups.google.com/groups/opt_out.
