I tweeted an article today. It was written by a software engineer at Digg about how they migrated one of their modules from Node.js to Golang. Their result was a success.
What was interesting to me was that the article gave a very detailed analysis on why Node.js did not meet their needs anymore. They also sastified that the performance of the module after rewritten in Go lang was increased a lot. However, they stated that there were no plans to migrate all of the rest to Go.
Such a Big world!