Note: in response to the answer. I assume you are using Apache. My answer will be correct even if you use some other server like nginx etc.
You write:
However, I seem to be unable to get far from Drupal, the main problem at this point should be able to save all the session variables in mysql, so no matter what server the load balancer loads on, the application has one link point to the session. Regarding sessions.
- , PHP Drupal + MySQL. , , PHP cookie PHPSESSID. cookie .
[ , PHPSESSID, PHP , , drupal, .. $_SESSION PHP. PHP . , MySQL . MySQL , PHPSESSID, .. Drupal]
, PHP , cookie PHPSESSID. , Apache Webserver 1 mod_php (PHP apache module) PHPSESSID, , "563" ( ). , , , cookie PHPSESSID 563. :
- ( ) Apache 1, cookie PHPSESSID. 567, .
- Apache 2. PHPSESSID - 567, Apache 2 mod_php. PHPSESSID. .
. , , . , , -, - . , , . cookie , , . , , , PHPSESSID.
cookie. . .
. , , cookie, . files . . , , , . NFS (Networked File System) SAN.
Drupal. , . , memcache, MySQL, , . , cookie, .
, ? , , . ? , Varnish, Drupal , boost , .
http://sf2010.drupal.org/conference/sessions/24-million-page-views-day-60-m-month-one-server. , 1 . . ! - .