Size of a request header field exceeds server limit

Since piwik 0.5.5 i got the following Error when i try to visit the piwik control panel:

Bad Request

Your browser sent a request that this server could not understand.
Size of a request header field exceeds server limit.
Cookie: piwik_visitor1147=1%3DNWFiYjI2MjgyYTNmMDVmODhiMGNkMjkzMmM4MDU1OWE%3D%3A2%3DMTI2OTEyOTg1NA%3D%3D%3A3%3DMTI2OTEyNjEyNA%3D%3D%3A4%3DMjM2OTA5NQ%3D%3D%3A5%3DOTIwMg%3D%3D%3A11%3DMQ%3D%3D%3A8%3DMw%3D%3D%3A9%3DYmxvZy5yZWdnZXIyNC5kZQ%3D%3D%3A10%3D%3A6%3DMjM2NDc3Nw%3D%3D%3A7%3DMTI2OTExNjU5NA%3D%3D; piwik_auth=login%3DZ3JlbWxpbg%3D%3D%3Atoken_auth%3DZWMxMmJkOWUzYzYyMDlhOWUwNzNkMjA5OTBlMzczODI%3D; piwik_visitor1049=8%3DMw%3D%3D%3A9%3DcmVnZ2VyMjQuZGU%3D%3A10%3D%3A6%3DMjM1ODY1OQ%3D%3D%3A7%3DMTI2OTEwNTI4OQ%3D%3D%3A1%3DYTEzNjIyOWYzY2NhMDAzNzUxNTNjMjljNjU4ZWIwMTU%3D%3A2%3DMTI2OTEyNzk5Mw%3D%3D%3A3%3DMTI2OTEyNzk4Nw%3D%3D%3A4%3DMjM2OTc0Mw%3D%3D%3A5%3DMzM0%3A11%3DMQ%3D%3D; piwik_visitor1126=8%3DMw%3D%3D%3A9%3DcmVnZ2VyMjQuZGU%3D%3A10%3D%3A6%3DMjM1OTMyOA%3D%3D%3A7%3DMTI2OTEwNjUyNQ%3D%3D%3A1%3DNmIzMTI4ZTQ0NmM5OGI3ZWJiOWIwOTUyYmFiOWJjMjc%3D%3A2%3DMTI2OTEwOTU3MA%3D%3D%3A3%3DMTI2OTEwOTU2Nw%3D%3D%3A4%3DMjM2MDk4MQ%3D%3D%3A5%3DMjk0OA%3D%3D%3A11%3DMQ%3D%3D; piwik_visitor213=8%3DMw%3D%3D%3A9%3DcmVnZ2VyMjQuZGU%3D%3A10%3D%3A6%3DMjExMTI2NQ%3D%3D%3A7%3DMTI2ODUyMTQxNA%3D%3D%3A1%3DNzRlYWZiYzM0MjllOWExMzc4YWVmZjAxZGRlNTQ3MjA%3D%3A2%3DMTI2ODUyMTQxNg%3D%3D%3A3%3DMTI2ODUyMTQxNA%3D%3D%3A4%3DMjExMTI2NQ%3D%3D%3A5%3DNjY4%3A11%3DMQ%3D%3D; piwik_visitor167=1%3DNDZmZTc2NDE3N2E0MmYyMTJiMjBhNDQ0NGRiN2Y3OGQ%3D%3A2%3DMTI2OTEyOTgzMw%3D%3D%3A3%3DMTI2OTEyOTgyNQ%3D%3D%3A4%3DMjM3MDMyMA%3D%3D%3A5%3DNjk3%3A11%3DMQ%3D%3D%3A8%3DMw%3D%3D%3A9%3DcmVnZ2VyMjQuZGU%3D%3A10%3D%3A6%3DMjExMjEwNA%3D%3D%3A7%3DMTI2ODUyNDI4Mw%3D%3D; piwik_visitor871=1%3DNGQ0MDU5ZGJkYTdkZGFkNTliMGJkYTcyZTllMjBiMGU%3D%3A2%3DMTI2ODM0ODE4Ng%3D%3D%3A3%3DMTI2ODM0ODE1NA%3D%3D%3A4%3DMjA0NTEyOQ%3D%3D%3A5%3DODU3%3A11%3DMA%3D%3D; piwik_visitor906=8%3DMw%3D%3D%3A9%3DZGVtby5yZWdnZXIyNC5kZQ%3D%3D%3A10%3D%3A6%3DMjMyMDc5OQ%3D%3D%3A7%3DMTI2OTAwOTA0NA%3D%3D%3A1%3DYTEwMDk0NDBjY2FmM2VjYTNhZWNiZTAyYjAwMjFiNjg%3D%3A2%3DMTI2OTEwMzY4Ng%3D%3D%3A3%3DMTI2OTEwMzY4Ng%3D%3D%3A4%3DMjM1NzczNQ%3D%3D%3A5%3DMjUw%3A11%3DMQ%3D%3D; piwik_visitor809=1%3DZDBjYzExMGJlYzI1NmNlNjIyZjdhNDk2NzI5ZTM5YWY%3D%3A2%3DMTI2ODM0OTE5Ng%3D%3D%3A3%3DMTI2ODM0OTE2MQ%3D%3D%3A4%3DMjA0NTQ0Mw%3D%3D%3A5%3DMTM2Mw%3D%3D%3A11%3DMA%3D%3D; piwik_visitor84=8%3DMw%3D%3D%3A9%3DcmVnZ2VyMjQuZGU%3D%3A10%3D%3A6%3DMjM1NDE0NA%3D%3D%3A7%3DMTI2OTA5Njg4OA%3D%3D%3A1%3DYjkzMzFmNzZkOTFjYjU5ZjIxN2FlMTEyMjYzZDQwZGI%3D%3A2%3DMTI2OTA5Njg4OA%3D%3D%3A3%3DMTI2OTA5Njg4OA%3D%3D%3A4%3DMjM1NDE0NA%3D%3D%3A5%3DMTQ2Mw%3D%3D%3A11%3DMQ%3D%3D; piwik_visitor1026=1%3DNzFjNzFhZmNmZGRiMDY4OTYzNDQzYmI4OGM1NTg2ZjI%3D%3A2%3DMTI2ODM1MDc3NA%3D%3D%3A3%3DMTI2ODM1MDc2OA%3D%3D%3A4%3DMjA0NTkwMA%3D%3D%3A5%3DNTgzMw%3D%3D%3A11%3DMA%3D%3D; piwik_visitor939=8%3DMw%3D%3D%3A9%3DcmVnZ2VyMjQuZGU%3D%3A10%3D%3A6%3DMjM2MDk5Ng%3D%3D%3A7%3DMTI2OTEwOTU5OA%3D%3D%3A1%3DY2Q0YmQwNWYyZmU4MzI3MGY5OWU0NDc0YzIwODJiYTM%3D%3A2%3DMTI2OTEwOTcyNw%3D%3D%3A3%3DMTI2OTEwOTU5OA%3D%3D%3A4%3DMjM2MDk5Ng%3D%3D%3A5%3DODkyNA%3D%3D%3A11%3DMQ%3D%3D; piwik_visitor998=8%3DMw%3D%3D%3A9%3DcmVnZ2VyMjQuZGU%3D%3A10%3D%3A6%3DMjM1NDEzNw%3D%3D%3A7%3DMTI2OTA5Njg3OQ%3D%3D%3A1%3DODVjMDk1NGI3MGQwNzhkOWI4MTUxMjI1MTk5ODhjMzU%3D%3A2%3DMTI2OTA5Njg3OQ%3D%3D%3A3%3DMTI2OTA5Njg3OQ%3D%3D%3A4%3DMjM1NDEzNw%3D%3D%3A5%3DMzEx%3A11%3DMQ%3D%3D; piwik_visitor73=8%3DMw%3D%3D%3A9%3DcmVnZ2VyMjQuZGU%3D%3A10%3D%3A6%3DMjM2OTczNg%3D%3D%3A7%3DMTI2OTEyNzk3Mg%3D%3D%3A1%3DNTAzMGM0NWYxMTBkMjljY2YyMjBhNGEzMmY1NDA2Y2E%3D%3A2%3DMTI2OTEyNzk4Mw%3D%3D%3A3%3DMTI2OTEyNzk3Mg%3D%3D%3A4%3DMjM2OTczNg%3D%3D%3A5%3DMTE5Nw%3D%3D%3A11%3DMQ%3D%3D; piwik_visitor901=8%3DMw%3D%3D%3A9%3DZGVtby5yZWdnZXIyNC5kZQ%3D%3D%3A10%3D%3A6%3DMjExMDU5OA%3D%3D%3A7%3DMTI2ODUxOTM5Ng%3D%3D%3A1%3DMmJiYWJkMDYzZTg5NTgxMWJhY2QyNTI4ODE3YWIxYzU%3D%3A2%3DMTI2ODUxOTM5Ng%3D%3D%3A3%3DMTI2ODUxOTM5Ng%3D%3D%3A4%3DMjExMDU5OA%3D%3D%3A5%3DNjI0%3A11%3DMQ%3D%3D; piwik_visitor840=1%3DMmFlZmQwNjk4NWE0MjZiZjVkZWMzODZlM2JmMDZjYjY%3D%3A2%3DMTI2ODQ4OTcxOA%3D%3D%3A3%3DMTI2ODQ4OTcwMQ%3D%3D%3A4%3DMjA5NzkzNw%3D%3D%3A5%3DNzk0Ng%3D%3D%3A11%3DMA%3D%3D; piwik_visitor678=1%3DM2ZjMWI0ZWYwNTBjZGE5Y2EyNDc1N2E5MjgyN2M0NDU%3D%3A2%3DMTI2ODUyNTg2Mw%3D%3D%3A3%3DMTI2ODUyNTg2Mg%3D%3D%3A4%3DMjExMjQ0NA%3D%3D%3A5%3DNzU0%3A11%3DMQ%3D%3D%3A8%3DMw%3D%3D%3A9%3Dc3RhcnNvZnBhaWQ0LmRl%3A10%3D%3A6%3DMjExMDY0NA%3D%3D%3A7%3DMTI2ODUxOTUzMg%3D%3D; piwik_visitor1=1%3DMWViNmRhYzRmODRmZTUxM2U2OWMwMThhNTFiMDg4ZTY%3D%3A2%3DMTI2ODQ5MDc5Ng%3D%3D%3A3%3DMTI2ODQ5MDc5Ng%3D%3D%3A4%3DMjA5ODQ0MA%3D%3D%3A5%3DNzk1Nw%3D%3D; piwik_visitor576=1%3DZGY4MjIxYzU3ZmY1YzY4OTVkYWE3M2U3ZGZmZWM0OTk%3D%3A2%3DMTI2OTExODkzNg%3D%3D%3A3%3DMTI2OTExODgzOQ%3D%3D%3A4%3DMjM2NTkzNg%3D%3D%3A5%3DNzE4%3A11%3DMQ%3D%3D%3A8%3DMw%3D%3D%3A9%3DcmVnZ2VyMjQuZGU%3D%3A10%3D%3A6%3DMjM2NTkzNg%3D%3D%3A7%3DMTI2OTExODgzOQ%3D%3D; piwik_visitor691=1%3DOGQ4NGM5ZDFlOGMzMDE1NGM3YjY5NDFlNDUxNjBkNjk%3D%3A2%3DMTI2ODQ5MTY0Mg%3D%3D%3A3%3DMTI2ODQ5MTY0MQ%3D%3D%3A4%3DMjA5ODc4Mg%3D%3D%3A5%3DNzYz%3A11%3DMA%3D%3D; piwik_visitor220=1%3DY2Y0NTc4YWE3OWNlZjIzNmI3Mzc0MDhhZDBlNDAxMDk%3D%3A2%3DMTI2ODQ5MTY2Mw%3D%3D%3A3%3DMTI2ODQ5MTY2Mw%3D%3D%3A4%3DMjA5ODc5NQ%3D%3D%3A5%3DNzk2MQ%3D%3D%3A11%3DMA%3D%3D; piwik_visitor519=1%3DNDYwNzdhMzg4NTBlMjEzNmYzZmQ3MzAxMWMxMzZkOWY%3D%3A2%3DMTI2ODQ5MTg4NQ%3D%3D%3A3%3DMTI2ODQ5MTg4NQ%3D%3D%3A4%3DMjA5ODkzNQ%3D%3D%3A5%3DNzk2Mw%3D%3D%3A11%3DMA%3D%3D; piwik_visitor384=1%3DOWJkNDRmZTk3NzBmMTBlMGU3YjA3NWU3MGJlM2JjYTk%3D%3A2%3DMTI2ODQ5MjQwNA%3D%3D%3A3%3DMTI2ODQ5MjMyNw%3D%3D%3A4%3DMjA5OTEzMA%3D%3D%3A5%3DNzk2Ng%3D%3D%3A11%3DMA%3D%3D; piwik_visitor376=1%3DY2RlZWQ4Mjc5YzY4YTdhMzJkYmUwNzhkMTUxMjIwYjE%3D%3A2%3DMTI2ODQ5MjM5NA%3D%3D%3A3%3DMTI2ODQ5MjM1Ng%3D%3D%3A4%3DMjA5OTE0MQ%3D%3D%3A5%3DNzk2OA%3D%3D%3A11%3DMA%3D%3D; piwik_visitor198=1%3DNjg0ZjQ1YzFlMmQwMzI1MmU1YjQzZGU2ZDIzMWIzMDk%3D%3A2%3DMTI2ODUwMzczMA%3D%3D%3A3%3DMTI2ODUwMzcyOQ%3D%3D%3A4%3DMjEwNDI0OQ%3D%3D%3A5%3DNjg3%3A11%3DMA%3D%3D; piwik_visitor105=8%3DMw%3D%3D%3A9%3DcmVnZ2VyMjQuZGU%3D%3A10%3D%3A6%3DMjM2MDk5NQ%3D%3D%3A7%3DMTI2OTEwOTU5NQ%3D%3D%3A1%3DODk3ZGM1MGZjZmE0MjJhMGUwYjJkODg2YzUwYzg2Mzc%3D%3A2%3DMTI2OTEwOTU5NQ%3D%3D%3A3%3DMTI2OTEwOTU5NQ%3D%3D%3A4%3DMjM2MDk5NQ%3D%3D%3A5%3DMTAzMA%3D%3D%3A11%3DMQ%3D%3D; piwik_visitor988=1%3DNzg1MGQ2NjY0OTM1MzNjMzU2NzQ0YWI0NDJhODI1Mzc%3D%3A2%3DMTI2ODUxNDczMg%3D%3D%3A3%3DMTI2ODUxNDczMg%3D%3D%3A4%3DMjEwODgzMw%3D%3D%3A5%3DODE0%3A11%3DMA%3D%3D; piwik_visitor102=8%3DMw%3D%3D%3A9%3Dd3d3LmJlbGllYnRlc3Rld2Vic2VpdGUuZGU%3D%3A10%3D%3A6%3DMjExMDcyMA%3D%3D%3A7%3DMTI2ODUxOTY4OQ%3D%3D%3A1%3DNGFmMzRiMTQ1YzZlNmNhOGIyZjJjZGExNzVmZTcyYTM%3D%3A2%3DMTI2ODUxOTY5MA%3D%3D%3A3%3DMTI2ODUxOTY4OQ%3D%3D%3A4%3DMjExMDcyMA%3D%3D%3A5%3DODExNQ%3D%3D%3A11%3DMA%3D%3D; piwik_visitor295=8%3DMw%3D%3D%3A9%3Dd3d3LjVldXJvbWFpbGVyLnRr%3A10%3D%3A6%3DMjExMjM1MA%3D%3D%3A7%3DMTI2ODUyNTQyMg%3D%3D%3A1%3DZjgyNzEwMTdlMGUxMDIxM2UzNGMzNzkwZTg1NjdiY2U%3D%3A2%3DMTI2ODUyNTQyMg%3D%3D%3A3%3DMTI2ODUyNTQyMg%3D%3D%3A4%3DMjExMjM1MA%3D%3D%3A5%3DMTMyOA%3D%3D%3A11%3DMA%3D%3D; __utma=14477492.357473575.1268596577.1269007223.1269118300.3; __utmz=14477492.1269118300.3.2.utmcsr=blog.regger24.de|utmccn=(referral)|utmcmd=
referral|utmcct=/quicknews/impressum-und-bestatigungsseite-individualisierbar/; piwik_vi

I knew, that it means that the cookie is tooo big, but how can we solve this issue?

I suspect that it linked is that I have registered over 1,000 pages in piwik.

Looking forward to hear from you style_emoticons/<#EMO_DIR#>/laugh.gif

I deleted the cookies, but this is now solution for everytime style_emoticons/<#EMO_DIR#>/wink.gif

This is a known bug, see http://dev.piwik.org/trac/ticket/409

the error would only happen if someones visits many of the websites you are tracking with Piwik. Clearing cookies is the solution

the error would only happen if someones visits many of the websites you are tracking with Piwik. Clearing cookies is the solution

Many of the visitors visit all the other pages. If i understand it right, it means, that they wouldn’t be tracked by piwik after they visit many of these sites.

Clearing cookies is a way, but no solution because i can not command the visitors to clear the cookies.

There must be another way to solve this issue in a newer piwik version style_emoticons/<#EMO_DIR#>/sad.gif

Could it cause problems if I create one Subdomain (eg. piwik.example.org, piwik.example2.org) for each Domain which uses piwik. I want to route the subdomain into the piwik Folder. So there will only be one cookie per subdomain. style_emoticons/<#EMO_DIR#>/unsure.gif

that would work