mloughran

There was a concurrent incident affecting a large number of GCP services: https://status.cloud.google.com/incidents/fmEL9i2fArADKawkZA....

It would have been rather useful had GCP linked these (presumably linked) incidents. The first mention of cooling in the concurrent incident was at 14:39 PDT (over 5 hours after first status update, and 4 hours after the cooling incident was created)... This is what was said:

Description: A cooling related failure in one of our buildings that hosts zone europe-west2-a for region europe-west2 is affecting multiple Cloud services.

Totally agree. I literally piped updates to diff last night to see whether GCP were actually making progress fixing anything or just spamming the same update message. Would make a useful twitter bot…

Yes, you can get a text diff from http://datatracker.ietf.org/doc/draft-ietf-hybi-thewebsocket...

Have you tried the presence functionality described on http://pusherapp.com/docs/presence ? It doesn't cover all use cases, but for the cases it covers, we think it does a pretty great job! Disclaimer: I'm from Pusher :)

Where are you getting the 20-30x number from? There is no demonstrated WebSockets attack in the "Transparent Proxies: Threat or Menace?" paper.

We tried nginx http_push_module before building pusher, and it was definitely one of the inspirations. I'd recommend it if you want to use long polling and are happy to maintain your own infrastructure.