Hello Okku, I looked into your case and even though I cannot divulge private information in a public post, there is this[1] article that states that the max is five transactional tasks into the task queues during a single transaction. It also says that the tasks are enqueued, rather than acting in parallel. Obviously, if they happen fast, they may appear as parallel. But in this case, they are slow from your perspective. And I think what you are asking is why they are throttled every second when they take ms to complete (as shown in the picture above), rather than what the ceiling should be.
For example, in the picture, the 33rd second of 23:26 has 5 tasks and you should aim to reach that consistently if you want it to be faster (but it will never fully be parallel since they are enqueued). If you have them all in the same run_in_transaction() function, that could be the cause of it. It's hard to say what should and shouldn't be the best pattern due to the semantics of your application, but I think it might be best to look at it in reverse and try to figure why certain tasks can happen 5 times a second and then duplicate that as an appropriate pattern in your application. The bug that was confirmed previously was more of an outage. Engineers can relate those delays to outages. However if you are experiencing this three times with months apart, a secondary problem could be the root cause. I understand that your initial question was if others are having this issue and I will let others answer, but I did some research for that too and didn't find it to be common. If you need further specific assistance, it might best best to do a support ticket. Otherwise, try to isolate why certain tasks are faster than others in comparison with your business logic. [1] https://cloud.google.com/appengine/docs/standard/python/datastore/transactions#transactional_task_enqueuing -- 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 view this discussion on the web visit https://groups.google.com/d/msgid/google-appengine/60e8b3d8-7129-4eb1-a098-74887cdcdcc4o%40googlegroups.com.