[Rails] Webrick in production?

[John-Mason P. Shackelford]

I wonder if anyone would clarify what is meant by the assertion that
ActionPack is not  thread-safe. A comment in the Rails source seems to
indicate otherwise. I have not read enough of the source myself to
understand what all of the issue are.

//root/trunk/actionpack/lib/action_controller/base.rb

lines 257-261

> # Controls whether the application is thread-safe, so multi-threaded servers like WEBrick know whether to apply a mutex
> # around the performance of each action. Action Pack and Active Record are by default > thread-safe, but many applications
> # may not be. Turned off by default.
> @@allow_concurrency = false
> cattr_accessor :allow_concurrency

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John-Mason Shackelford

Software Developer
Pearson Educational Measurement

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