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I understand you are experiencing some downtime for your Google App Engine: Flex application. Based on the error you are getting, I was able to find the following reasoning behind why you may experience random 503 errors. As discussed here <https://cloud.google.com/appengine/quotas#When_a_Resource_is_Depleted>[1], a possible scenario may be that you have reached the quota limit and the downtime you encounter is the period in which the quota requires to be replenished. You can explore the details of this further by the documentation provided here <https://cloud.google.com/appengine/quotas#When_a_Resource_is_Depleted>[1] under the section called "When a resource is depleted". However, if this quota limit is not the issue then I would encourage you to create a private issue on our Public Issue Tracker[2] <https://cloud.google.com/support/docs/issue-trackers>. This will allow a member of the Google Support team to further investigate this issue for you and verify exactly what is occurring on your specific project. Hope this helps! [1]When a resource is depleted: https://cloud.google.com/appengine/quotas#When_a_Resource_is_Depleted [2]Public issue Tracker: https://cloud.google.com/support/docs/issue-trackers -- 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/d2fbd8bb-e87c-4a8b-bcf0-0df243e1aa49%40googlegroups.com. For more options, visit https://groups.google.com/d/optout.
