Rails 3.1, memory leak for missing local partial variables (Ruby 1.9.2-p290)

Question

If I render a partial like so:

= render :partial => \"event_news_item\", :object => event, :variable => true

And then reference variable in the partial

Answer 1

I have seen a really bad memory leak in similar environment. I've tracked it to the innocently looking association fetch (comment.author, to be precise), then tried to debug it for some time, and finally gave up and ran on 1.9.3-rc1.

Surprisingly, that fixed this particular memory leak, and, moreover, reduced the unicorns' startup size by 15M (from 85M to 70M; i386).