We're seeing error messages like these in /var/log/messages:
OTRS-CGI-1[19587]: [Error][Kernel::System::Ticket::Article::ArticleFlagSet][Line:3035]: Duplicate entry '79173' for key 1, SQL: 'INSERT INTO article_flag (article_id, article_key, article_value, create_time, create_by) VALUES (?, ?, ?, '2012-10-29 10:22:58' , ?)'
And correspodning error messages like these in /var/log/httpd/error_log:
-e: DBD::mysql::db do failed: Duplicate entry '79173' for key 1 at /opt/otrs//Kernel/System/DB.pm line 478.
What could be wrong? Working in the user interface everything seems to work fine, but these error messages are worrying us.