mysqldump | mysql产生'太多打开文件'错误。为什么？

I have a RHEL 5 system with a fresh new hard drive I just dedicated to the MySQL server. To get things started, I used "mysqldump --host otherhost -A | mysql", even though I noticed the manpage never explicitly recommends trying this (mysqldump into a file is a no-go. We're talking 500G of database). I have a RHEL 5 system with a fresh new hard dr