Errno::EPIPE (Broken pipe) MySQL Error in Rails

I've been working professionally with Ruby on Rails for a few months. To be exact that's mostly in SysAdmin capacity. During the time, I've seen some weired errors which I had not seen anywhere else. Time rolled on and now those things don't look weired at all. Actually I should have looked more carefully. Later, I did and found my way through. So here's some stuff I found. Hope this will save som

[ginpei]

rails newしたら"`flush': Broken pipe (Errno::EPIPE)"となってしまう現象について。MySQL連携ライブラリーの問題であるらしい。別のライブラリーに置き換えれば大丈夫みたい（試してない）。

[cf-kodaira]

postgres rails pipe broken