Perhaps these links will help: http://groups.google.com/group/google-appengine/browse_thread/thread/21478bd9185dcc32/f61b532da5c46588?lnk=gst&q=index+reads#f61b532da5c46588
http://groups.google.com/group/google-appengine/browse_thread/thread/bdb45e04dd8f959e/0659767c7878bafb?lnk=gst&q=index+reads#0659767c7878bafb http://groups.google.com/group/google-appengine/browse_thread/thread/fef4a4c22a50039/4ae7426d4daca9d2?lnk=gst&q=index+reads#4ae7426d4daca9d2 So, excessive index reads could be a problem...
