This could be due to App Engine instances being overloaded. Please see these best practices docs to help you manage Tasks better [1][2].
If you are still unable to diagnose the root cause, I suggest opening an issue on the Issue Tracker website [3], where we can investigate further and forward the issue to Engineering if needed. [1] https://cloud.google.com/tasks/docs/common-pitfalls#latency_spikes_and_max_concurrent [2] https://cloud.google.com/tasks/docs/manage-cloud-task-scaling [3] https://cloud.google.com/tasks/docs/support#follow_the_issue_tracker -- 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 [email protected]. To post to this group, send email to [email protected]. Visit this group at https://groups.google.com/group/google-appengine. To view this discussion on the web visit https://groups.google.com/d/msgid/google-appengine/726f3395-92fb-4e65-8728-7f6b667cab8c%40googlegroups.com. For more options, visit https://groups.google.com/d/optout.
