Gor – A simple http traffic replication tool written in Go
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Re: Gor – A simple http traffic replication tool written in Go
#2This seems like a super useful tool, especially if you want to do blue/green deploys where staging/production end up on the same physical machines and you want to run with artificial load as part of capacity planning/testing.
Re: Gor – A simple http traffic replication tool written in Go
#3Seems like an awesome tool.
As a side note, however, I would recommend anybody to not blindly apply the "Tuning" section (at the bottom of the readme) to their system. More specifically, net.ipv4.tcp_tw_recycle and net.ipv4.tcp_tw_reuse are notorious for causing problems if mis-used.
Re: Gor – A simple http traffic replication tool written in Go
#4Looks like Tsung replay feature: http://tsung.erlang-projects.org/
Re: Gor – A simple http traffic replication tool written in Go
#5Seems like an awesome tool. As a side note, however, I would recommend anybody to not blindly apply the "Tuning" section (at the bottom of the readme) to their system. More specifically, net.ipv4.tcp_tw_recycle and net.ipv4.tcp_tw_reuse are notorious for causing problems if mis-used.
Could you elaborate?
Re: Gor – A simple http traffic replication tool written in Go
#6Eek... that's a rather unfortunate name choice. The "Gor" saga is an infamous series of books spanning the past 50 years, basically the sci-fi/fantasy equivalent of "Fifty Shades of Grey".
https://en.wikipedia.org/wiki/Gor
https://www.google.com/search?q=gor&biw=1920&bih=947&source=...
Re: Gor – A simple http traffic replication tool written in Go
#7Blog post: http://leonsbox.com/blog/2013/06/04/improving-testing-by-usi...
And previous discussion: https://news.ycombinator.com/item?id=5824387
Re: Gor – A simple http traffic replication tool written in Go
#8This is super cool. You know what I'd really really like even more? Store this info somewhere, and let me replay it at a later time or date. Maybe I want to replay a whole day's worth of data at an accelerated rate to see if my servers can handle it. It also opens up the ability to do data forensics to try and reproduce a bug, perhaps.
Thanks for this!
Re: Gor – A simple http traffic replication tool written in Go
#9Eek... that's a rather unfortunate name choice. The "Gor" saga is an infamous series of books spanning the past 50 years, basically the sci-fi/fantasy equivalent of "Fifty Shades of Grey". https://en.wikipedia.org/wiki/Gor https://www.google.com/search?q=gor&biw=1920&bih=947&source=...
"There are only two hard things in Computer Science: cache invalidation and naming things."
-- Phil Karlton http://martinfowler.com/bliki/TwoHardThings.html
Re: Gor – A simple http traffic replication tool written in Go
#10We use it to replicate production traffic to our staging and testing environments at https://reverb.com. It's an incredibly useful and functional tool. We've used it to shake out exceptions from our blue/green deploys as well. For instance when we migrated from Rails 3 -> 4, Gor was paramount to shaking out some pretty nasty bugs by replicating prod traffic from the Rails 3 cluster to the new Rails 4 cluster.
Gor is awesome!