I keep the troubleshooting faq on duplicate entries, would anyone mind if I posted the info from this thread to drupal.org?  I can change the IP address. (copying this to documentation list)

Wouldn't deleting user zero cause a lot more errors?

Anisa.

On 11/7/06, Khalid B <kb@2bits.com> wrote:
Check if you deleted user 0 from the users table by mistake.

On 11/6/06, Florian Kriener < lists_drupal@leflo.de> wrote:
> Hi,
>
> I just found this in my logs. How could that be triggerd?
>
>    Duplicate entry '2056b9efb95f03187b8249001c5ae5fb' for key 1 query: INSERT
>    INTO sessions (sid, uid, cache, hostname, session, timestamp) VALUES
>    ('2056b9efb95f03187b8249001c5ae5fb', 0, 0, '80.253.80.97', '', 1162786671)'
>    in ,includes/database.mysql.inc' in Zeile 121.



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