Brion wrote:

I hacked up a session data handler to optionally keep login session data in memcached rather than the local filesystem. Combined with a change to the cookie settings, the English Wikipedia login sessions can now be shared between en.wikipedia.org on larousse and en2.wikipedia.org on pliny, without having to separately log in on each server.

Sweet! I especially like the part about load balancing between en2 and en.

That may also explain these error messages on the foundation's webpages:

Warning: session_start(): Cannot send session cookie - headers already sent by (output started at /usr/local/apache/htdocs/foundation/extract.php:13) in /usr/local/apache/common/php/Setup.php on line 53

Warning: session_start(): Cannot send session cache limiter - headers already sent (output started at /usr/local/apache/htdocs/foundation/extract.php:13) in /usr/local/apache/common/php/Setup.php on line 53

http://wikimediafoundation.org/fundraising

-- Daniel Mayer (aka mav)