On https://bugs.webkit.org/show_bug.cgi?id=106877 the following error is briefly showing up in place of the EWS bubbles: Traceback (most recent call last): File "/base/python_runtime/python_lib/versions/1/google/appengine/ext/webapp/_webapp25.py", line 714, in __call__ handler.get(*groups) File "/base/data/home/apps/webkit-commit-queue/1.364503684603662849/handlers/statusbubble.py", line 78, in get bubbles, show_submit_to_ews = self._build_bubbles_for_attachment(attachment) File "/base/data/home/apps/webkit-commit-queue/1.364503684603662849/handlers/statusbubble.py", line 68, in _build_bubbles_for_attachment bubbles.append(self._build_bubble(queue, attachment, queue_position)) File "/base/data/home/apps/webkit-commit-queue/1.364503684603662849/handlers/statusbubble.py", line 41, in _build_bubble queue_status = attachment.status_for_queue(queue) File "/base/data/home/apps/webkit-commit-queue/1.364503684603662849/model/attachment.py", line 95, in status_for_queue queue_summary = self.summary().get(queue.name_with_underscores()) File "/base/data/home/apps/webkit-commit-queue/1.364503684603662849/model/attachment.py", line 73, in summary memcache.set(str(self.id), self._summary, namespace="attachment-summary") File "/base/python_runtime/python_lib/versions/1/google/appengine/api/memcache/__init__.py", line 793, in set namespace=namespace) File "/base/python_runtime/python_lib/versions/1/google/appengine/api/memcache/__init__.py", line 898, in _set_with_policy time, '', namespace) File "/base/python_runtime/python_lib/versions/1/google/appengine/api/memcache/__init__.py", line 977, in _set_multi_async_with_policy stored_value, flags = _validate_encode_value(value, self._do_pickle) File "/base/python_runtime/python_lib/versions/1/google/appengine/api/memcache/__init__.py", line 236, in _validate_encode_value 'received %d bytes' % (MAX_VALUE_SIZE, len(stored_value))) ValueError: Values may not be more than 1000000 bytes in length; received 1050953 bytes The error seems to come and go so I'm filing this for posterity.