Great Q&A compilation! It would be great if GAE team (or anyone else) could set up a public wiki and link to it from the official docs. A lot of questions posted on this group repeat over and over.
On Oct 31, 3:50 pm, Peter Recore <[EMAIL PROTECTED]> wrote: > I've noticed that there are some questions that are getting asked over > and over again, and the best answers are scattered across many posts. > This is a stab at compiling the wisdom of the group and making it easy > for everyone to get the answers they need fast. So the next time > someone drops their laptop into a pit of alligators and then realizes > it had the only copy of their super awesome app, we can just point > them here instead of snarkily explaining the virtues of source control > and backups. > > This is just a start. I included some specific requests for help/ > feedback in << >> . any other suggestions are welcome. > > -peter > > -------------------------------- > > App Engine FAQ's > > Q: I accidentally deleted my source code from my hard drive. How do I > download my source > code from Google's servers once I upload it using dev_appserver.py? > > A: You can't. There are several steps you can take to improve your > situation. In general, > using a source control tool is a good way to keep your code safe. > Google offers one such > tool for free: > http://code.google.com > There are many other options for source control out there, and > using app engine as your backup > is not the best one. > <<suggestions for other free source repositories welcome>> > > However, if you really want to access your uploaded code directly, > you can include some code in > your app that will allow you to download your code as a zip file: > > http://groups.google.com/group/google-appengine/browse_thread/thread/... > > << any other suggestions for revision-control-phobes? >> > > For shell like access to your uploaded code, check out > http://shell.appspot.com/ > http://con.appspot.com/ > > Q: When is App Engine going to support my favorite programming > language? > Q: When is App Engine going to support billing for higher quotas? > > A: The official roadmap is here: > http://code.google.com/appengine/docs/roadmap.html > Beyond that, the GAE team has not made any promises about > particular features. > > Q: I am confused about High CPU warnings in my logs or in my > dashboard. > > A: The mcycles number included in log entries does not include > mcycles spent on API calls > (like datastore or memcache calls). The number in the dashboard > includes the mcycles > used in both your code and API code. This is why the dashboard > number is usually higher. > <<I would love someone to verify that I got this right and not > backwards. Also, if someone > feels up to giving a clear, concise description of the CPU quota > issue in general that would > probably be helpful.>> > > Q: How do I use my favorite SQL feature in GQL? > > A: First, you must understand that SQL and GQL are very different. > Not all features of SQL are > available in GQL, just like not all features of GQL are available > in SQL. Here are a few > pointers on how to duplicate some common SQL features using the > Datastore: > > * To simulate count(*) in the Datastore, you should construct a > sharded counter. The > datastore does not give you a way to count all your entities. > You must maintain > a count yourself. A sharded counter is the currently accepted > best practice for doing this. > For example implementations, see: > http://github.com/DocSavage/sharded_counter/tree/master/counter.py > (by Bill Katz) > http://paste.blixt.org/1581 (by Sylvain?) > Watch this video for more background: > http://sites.google.com/site/io/building-scalable-web-applications-wi... > > << any other common 'how do i do this SQL task in GQL' issues?>> > > Q: I'm in China or somewhere else that does not have SMS connectivity > with Google's servers. > How can I get access? What's wrong with just using my email > address? > > A: Look athttp://code.google.com/appengine/kb/sms.html > <<does anyone from china have any better advice? i'm from the US > so i have no idea>> --~--~---------~--~----~------------~-------~--~----~ 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 -~----------~----~----~----~------~----~------~--~---
