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Interesting. The hot code reloading functionality in Erlang led me to investigate ruby (my preferred Dev language) a bit more. You can do a hot code load in Ru
by stevegh 11y ago
Interesting. The hot code reloading functionality in Erlang led me to investigate ruby (my preferred Dev language) a bit more.
You can do a hot code load in Ruby using the Kernel#load() call. It won't alter functionality currently on the call stack, but it will change the functionality of everything not on the call stack. With some sympathetic design, you can achieve hot code loading fo high availability in ruby.
- pmontra 11y agoYou can use that to replace code by monkey patching $ cat hi.rb def method puts "hi" end method load("hello.rb") method $ cat hello.rb def method puts "hello" end $ ruby hi.rb hi hello You must engineer your application to execute the load method and that's it. However I wonder if this is really equivalent to what Erlang does. I remember http://rvirding.blogspot.it/2008/01/virdings-first-rule-of-programming.html http://rvirding.blogspot.it/2008/01/virdings-first-rule-of-p...
- pmontra 11y agoInteresting post at http://blog.rkh.im/code-reloading http://blog.rkh.im/code-reloading