As i remember - about 250 bytes. If key length more then max length - gae use hash(key) - it transparent for you.
2011/11/19 Andrius A <[email protected]> > What is the maximum key length for Memcache? > and what are the allowed symbols? will it be safe for me to use a > composition of two datastore entity keys? > Can't find it mentioned in documentation. > > -- > You received this message because you are subscribed to the Google Groups > "Google App Engine" group. > To post to this group, send email to [email protected]. > To unsubscribe from this group, send email to > [email protected]. > For more options, visit this group at > http://groups.google.com/group/google-appengine?hl=en. > -- Blog: www.rekby.ru -- You received this message because you are subscribed to the Google Groups "Google App Engine" group. To post to this group, send email to [email protected]. To unsubscribe from this group, send email to [email protected]. For more options, visit this group at http://groups.google.com/group/google-appengine?hl=en.
