Guys, do you had or thought about the situation when in piwik there are about 100 sites, and some user visits most of those sites? This particular user after some time will have about 40+ piwik tracking cookies, and then server will start to throw an error:
Size of a request header field exceeds server limit.
Is there any solution for this problem? I know that I can change maximum request header size in apache, but It's not the best solution.
this is a known issue: http://dev.piwik.org/trac/ticket/409 - it should happen very rarely (typically only for the webmaster) but still this is a critical issue. If you would like to help, please contribute a patch