[ Thanks to An Anonymous Reader for
this link. ]
“Sooner or later, you’re going to get that phone
call (or email, SMS, instant message, tweet, or whatever): The
database is slow! Fix ASAP! And you’ll be expected to very
quickly figure out what’s slowing things down–often
wither very little context, background, or sense of what may have
changed recently at the application layer. It’s just a
server. How hard could it be?“Well, as we all know “that depends.” It depends on
a lot of things that you likely have little time to investigate in
the middle of a crisis. So where should you focus your time and
attention?”