Hi,
I coped with this error but I don't know how to fix it. When I upload a new problem to the system, it's show the message: "Error: problem.externalid: A problem with the same `externalid` already exists - is this a duplicate?" Even I checked that in my problem package, I used a new probid.
It's strange with this version compare with the logic on version 5.3.2
Regards,
Trần Bình Dương (Mr) IT Lecturer Software Engineering Department , FPT University 29th Kilometer Thang Long Boulevard, Thach Hoa commune, Thach That Province, Education and Training Area, Hoa Lac High Tech Park, Ha Noi Mobile:(+84) 936168165 Skype: avn_duong.tb E-mail: duongtb@fe.edu.vn Website: ....
________________________________ Từ: Nicky Gerritsen nickygerritsen@me.com Đã gửi: 31 Tháng Mười 2020 6:51 CH Đến: domjudge-devel@domjudge.org domjudge-devel@domjudge.org; Tran Binh Duong (FE FPTU HN) DuongTB@fe.edu.vn Chủ đề: Re: Trả lời: About: strange phenomenon on domjudge with system which has a hardware load balancer configuration.
You can choose. I have never set it up with symfony so I can’t really help. Hopefully google will help you
Nicky On 31 Oct 2020, 12:50 +0100, Tran Binh Duong (FE FPTU HN) DuongTB@fe.edu.vn, wrote: Hi Nicky,
Thanks for your response, I read the document at https://symfony.com/doc/current/session/database.html [https://symfony.com/images/opengraph/symfony.png]https://symfony.com/doc/current/session/database.html Store Sessions in a Database (Symfony Docs)https://symfony.com/doc/current/session/database.html These are parameters that you can configure: db_table (default sessions): The name of the session table in your database; db_username: (default: '') The username used to connect when using the PDO configuration (when using the connection based on the DATABASE_URL env var, it overrides the username defined in the env var). db_password: (default: '') The password used to connect when using the ... symfony.com But because I am not familiar with symfony, so I don't understand the structure and the method when developing and configuring in Symfony. Therefore, the content of the document is quite difficult to me to make sure how to start. Should I use only PHP to complete the configuration or I have to configure in three kind of document including YAML, XML and PHP? If I use only PHP, what should I do? Just follow the guide on TAB PHP is enough?
Regards, Trần Bình Dương (Mr) IT Lecturer Software Engineering Department , FPT University 29th Kilometer Thang Long Boulevard, Thach Hoa commune, Thach That Province, Education and Training Area, Hoa Lac High Tech Park, Ha Noi Mobile:(+84) 936168165 Skype: avn_duong.tb E-mail: duongtb@fe.edu.vn Website: ....
________________________________ Từ: Nicky Gerritsen nickygerritsen@me.com Đã gửi: 31 Tháng Mười 2020 5:52 CH Đến: domjudge-devel@domjudge.org domjudge-devel@domjudge.org; Tran Binh Duong (FE FPTU HN) DuongTB@fe.edu.vn Chủ đề: Re: About: strange phenomenon on domjudge with system which has a hardware load balancer configuration.
You need to share sessions between the web servers. See https://github.com/DOMjudge/domjudge/wiki/Scaling-and-load-testing
Nicky On 31 Oct 2020, 11:50 +0100, Tran Binh Duong (FE FPTU HN) DuongTB@fe.edu.vn, wrote: Hi all,
Our contestants feedback about the error as follow: “Invalid CSRF token”, moreover contestants were frequently experienced with kicking out phenomenon and very hard to log back into the system.
Our configuration is briefly depicted as follow:
/ domserver 1 \ Client ——> HW load balancer < >== Mysql DB \ domserver 2 /
Please give me some advice to solve the issue.
Trần Bình Dương (Mr) IT Lecturer Software Engineering Department , FPT University 29th Kilometer Thang Long Boulevard, Thach Hoa commune, Thach That Province, Education and Training Area, Hoa Lac High Tech Park, Ha Noi Mobile:(+84) 936168165 Skype: avn_duong.tb E-mail: duongtb@fe.edu.vn Website: ....
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