Our traffic has gone up significantly, but our site works fine for most of the day, but during our peak hours, our site has been crippled. Requests are being queued in the hundreds and then everything goes back to normal once our peak period is over.
What are the steps to properly diagnose the bottleneck?
We are pretty confident it is not the database server as we use Memcached to cache most of the data. Help is much appreciated.