CCP Games brings Sentry to the PlayStation

http://blog.getsentry.com/2014/01/10/ccp-games-brings-sentry-to-playstation.html

by zeeg • 13 years ago

39 13 13 years ago

blog.getsentry.com

I've read the Wikipedia article on Stackless Python but I was wondering if someone could quickly explain why Stackless is more desirable to CCP than regular Python?

gvickers• 13 years ago

Lets you get around the GIL (Global Interpreter Lock), basically gives python lightweight threads (greenlets).

sp332• 13 years ago

Unlike most MMOs, which have multiple instances or "shards" of each location, EVE Online keeps all players in one shard. That means, for busy hub areas, they have to handle thousands of ships interacting with each other all on one server.

The lightweight concurrency lets them write little (and not-so-little) bits of code that execute in parallel without incurring overhead associated with OS threads.

Edit: sorry if I'm confusing "concurrent" and "parallel", I never really liked those terms :p

cdash• 13 years ago

As far as I know nothing in EVE executes in parallel in a traditional sense. Each solar system is run on one thread and one python interpreter. While stackless is used for concurrent programming it is not used for parallel programing.

krisvale2• 13 years ago

Thousands of lightweight threads with cooperative scheduling. Allows you to have a myriad of little programs running, each perhaps servicing a network request, or running some long running game logic. Impossible with threads. Also, threads are pre-emptive, which means that you need to use locking almost everywhere.

james33• 13 years ago

Sentry really is a life saver. We use it for our HTML5 MMO for both the client-side Javascript and the back-end in Node.js, and it has helped us to dramatically improve our end user experience. Really cool seeing this used out of the browser!

famousactress3• 13 years ago

This is a handy reminder. We spun up Sentry a while back (like, maybe 1-1.5 years ago?) and spun it back down because logging to it via TCP was unacceptable for us.

For the folks using it, how do you get data to it? Curious how things have shaped up over time.

teh_klev• 13 years ago

Could you explain why?

famousactress3• 13 years ago

We didn't want to write to something synchronously without having a fault-tolerant solution for latency... especially when we could afford the end-user latency of seeing the exceptions later. I don't want my logging aggregator to be a SPOF for the main app. Would much rather suck up the data asynchronously from syslog or files, etc.

StavrosK• 13 years ago

Why not just use the UDP logger instead? I've used the hosted version of sentry with the UDP logger just fine.

CCP Games brings Sentry to the PlayStation

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