Scheduled Maintenance 11/11 from 5:00pm - 6:30pm PST

[Paul]

On Tuesday, 11/11 at 5:00pm PST (UTC-8), developers will not be able
to deploy new versions of their applications for approximately 1.5
hours while we upgrade our application servers. Please note that
applications deployed before 5:00pm will continue to function
normally. This maintenance only affects deployment, there will be no
impact on application serving during this time.

Paul, The App Engine Team

[Paul]

During our planned maintenance we experienced a few issues that led to
a small number of applications, those published after 6:00PM PST,
experiencing some downtime. The Admin Console was also down
intermittently from 5:00PM to 8:00PM PST. Around 8:00PM PST we
resolved the issues and completed the upgrade. All applications are
now back up and serving, however, a bug was introduced during the
upgrade that prevented some objects from being pickled and stored in
memcache correctly. We know the cause of this issue and are
investigating a resolution.

We apologize for any inconvenience this has caused. We are working on
a post-mortem report that outlines the underlying causes of these
problems so that we don't experience the same issues again.

Paul, The App Engine Team