errors 500 and 504

We got this from Google:

"At approximately 7:30am Pacific time this morning, Google began experiencing slow performance and dropped connections from one of the components of App Engine. The symptoms that service users would experience include slow response and an inability to connect to services. We currently show that a majority of App Engine users and services are affected. Google engineering teams are investigating a number of options for restoring service as quickly as possible, and we will provide another update as information changes, or within 60 minutes."

Looks like there are still bugs and errors happening from this process. We hope they'll be able to fix it up soon. I've added a day to your account to help make up for this downtime.

More:

"We are continuing work to correct the ongoing issues with App Engine. Operation has been restored for some services, while others continue to see slow response times and elevated error rates. The malfunction appears to be limited to a single component which routes requests from users to the application instance they are using, and does not affect the application instances themselves.

We’ll post another status update as more information becomes available, and/or no later than one hour from now."

And now should be back to normal:

"At this point, we have stabilized service to App Engine applications. App Engine is now successfully serving at our normal daily traffic level, and we are closely monitoring the situation and working to prevent recurrence of this incident.

This morning around 7:30AM US/Pacific time, a large percentage of App Engine’s load balancing infrastructure began failing. As the system recovered, individual jobs became overloaded with backed-up traffic, resulting in cascading failures. Affected applications experienced increased latencies and error rates. Once we confirmed this cycle, we temporarily shut down all traffic and then slowly ramped it back up to avoid overloading the load balancing infrastructure as it recovered. This restored normal serving behavior for all applications.

We’ll be posting a more detailed analysis of this incident once we have fully investigated and analyzed the root cause."

Thanks for the continued updates - one of the things I love about skritter is the 'personal service' part. I really do believe you guys care about us!

thanks for the fast fix!!!

it was just around one hour before midnight here in beijing when the skritter online and the app collapsed.

after around one hour things were working well again so i could finisy my two hours session. thanks !

back on, nice ~

i still have problems with my android? :( it says i need to update flash which is apsurde, since I've ben using it some days ago.

and my flash works fine on every other web page

Draginja, does it load if you use this URL?

http://www.skritter.com/study/all?ten_point_one=true

(If it it loads, it won't actually run properly, but I can make a fix tomorrow that gets you back online.)

Looks like the Great Firewall or something like it is preventing you from completely loading www.skritter.com because it is hosted on Google App Engine, which is periodically blocked. Try instead our mirror:

www.skritter.cn

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nick, this is the answer i get when i try to open your page here in beijing.


yes, there seems to be a problem with the flash in the progress page. doesnt load.

study so far was slow but ok.

If you have Flash on Android and it says you need to update Flash or don't have it, and you're in China, try this URL on Android (using the Chinese mirror):

http://www.skritter.cn/study/all?ten_point_one=true

same thing. no change.
i am using a laptop and have skritter open in firefox.

study is no problem, the flash works fine.

its just the progress page where the graphs dont show...

thanks!

"Draginja, does it load if you use this URL?

http://www.skritter.com/study/all?ten_point_one=true

(If it it loads, it won't actually run properly, but I can make a fix tomorrow that gets you back online.)"

Nick, it DOES LOAD if I use that link. Can you please fix it? :) I like studying while traveling to my collage.

Aha! I'll work on that fix shortly.

Give it a shot now, Draginja.

learninglife j.h.: we'll work on bringing back the old, Flashless progress graphs for Android. Not sure when we can get it done, though.