Lukas - sorry, I don't have any further ideas. The CloudSQL socket should be present there. I would suggest at this point to create a ticket in the issue tracker (https://issuetracker.google.com/) or contact Google Support.
Sorry I can't be of more help, Attila -- 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/ac9c91d9-18cb-4e36-8fc5-953ae371f42c%40googlegroups.com. For more options, visit https://groups.google.com/d/optout.
