October 2020 - DOMjudge-devel

About: strange phenomenon on domjudge with system which has a hardware load balancer configuration.
by Tran Binh Duong (FE FPTU HN) 01 Nov '20

01 Nov '20

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(a)fe.edu.vn Website: ....

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***UNCHECKED*** An error dialog displayed on judgehost page - Cannot reinitialize Datatable
by Tran Binh Duong (FE FPTU HN) 29 Oct '20

29 Oct '20

Hi, I installed domjudge version 7.3.0, sometime when open judgehost pages, I got an error message "Cannot reinitialize Datatable", I don't know how to fix it? Can you give me some advice? 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(a)fe.edu.vn Website: ....

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***UNCHECKED*** Trả lời: About: config to set /login as a start point of domserver webapp when user access to it
by Tran Binh Duong (FE FPTU HN) 29 Oct '20

29 Oct '20

Hi, Thanks for your response, please could you explain more detail how to pass $request to function so that the system processing it? I'm not familiar with Symfony. >> To get the request info, pass Symfony\Component\HttpFoundation\Request $request to the function and check >> $request->query->getBoolean(’static’) Actually, I would like to set the static value to 1 in RootController before redirect it to public_index, so I need to get the request and set that value. 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(a)fe.edu.vn Website: .... ________________________________ Từ: Nicky Gerritsen <nickygerritsen(a)me.com> Đã gửi: 28 Tháng Mười 2020 5:14 CH Đến: Tran Binh Duong (FE FPTU HN) <DuongTB(a)fe.edu.vn> Chủ đề: Re: ***UNCHECKED*** About: config to set /login as a start point of domserver webapp when user access to it Hi, Change the logic here: https://github.com/DOMjudge/domjudge/blob/master/webapp/src/Controller/Root… To get the request info, pass Symfony\Component\HttpFoundation\Request $request to the function and check $request->query->getBoolean(’static’) Nicky On 28 Oct 2020, 11:12 +0100, Tran Binh Duong (FE FPTU HN) <DuongTB(a)fe.edu.vn>, wrote: Hi, Because of separating user flows into two lines in our system, I need to drive the contestant access flow to /login page first, and public audience to /public page with a paramenter as static=1. Which is the options I can do? 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(a)fe.edu.vn Website: .... _______________________________________________ DOMjudge-devel mailing list DOMjudge-devel(a)domjudge.org https://www.domjudge.org/mailman/listinfo/domjudge-devel

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***UNCHECKED*** About: config to set /login as a start point of domserver webapp when user access to it
by Tran Binh Duong (FE FPTU HN) 28 Oct '20

28 Oct '20

Hi, Because of separating user flows into two lines in our system, I need to drive the contestant access flow to /login page first, and public audience to /public page with a paramenter as static=1. Which is the options I can do? 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(a)fe.edu.vn Website: ....

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***UNCHECKED*** Re: Trả lời: About : install judgehost with kotlin compiler support
by Nicky Gerritsen 27 Oct '20

27 Oct '20

Please always send the messages to the list. I think still kotlinc is not found in the path by the judgehost. Make sure it is. Nicky On 27 Oct 2020, 10:44 +0100, Tran Binh Duong (FE FPTU HN) <DuongTB(a)fe.edu.vn>, wrote: > Hi Nicky, > > I install sucessfully kotlin both inside and outside /chroot/domjudge, but when the judgehost judging submission, this message is still reported: > Compiling failed with exitcode 127, compiler output: > /opt/domjudgeicpc2020/judgehost/judgings/judgehost03-0/endpoint-default/executable/kt/run: 46: /opt/domjudgeicpc2020/judgehost/judgings/judgehost03-0/endpoint-default/executable/kt/run: kotlinc: not found > > I think the problem is because of lacking permission, but how to solve it? > > 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(a)fe.edu.vn > Website: .... > > Từ: Nicky Gerritsen <nickygerritsen(a)me.com> > Đã gửi: 27 Tháng Mười 2020 2:46 CH > Đến: Tran Binh Duong (FE FPTU HN) <DuongTB(a)fe.edu.vn> > Chủ đề: Re: About : install judgehost with kotlin compiler support > > Hi Trần, > > For the currently released version of DOMjudge, you need to install Kotlin installed both inside and outside the chroot. > Also note that it needs to be in the $PATH to be accessible. An option would be to create a symlink to kotlinc in /usr/bin or similar……. > > Nicky > On 27 Oct 2020, 04:26 +0100, Tran Binh Duong (FE FPTU HN) <DuongTB(a)fe.edu.vn>, wrote: > > Hi all, > > > > I'm trying to install kotlin into our contest environment to open for contestants who will use kotlin as a language to solve their problem. > > But, it is still not success. > > > > I tried install kotlin by using snap, but there is a bug related to permission so I uninstalled it. > > Then, I installed in another way by using sdk script and Kotlinc is actually worked properly by using command lines in terminals. > > > > But when it was executing in judgehost, I got this message: > > ========= > > Compiling failed with exitcode 127, compiler output: /opt/domjudgeicpc2020/judgehost/judgings/judgehost03-0/endpoint-default/executable/kt/run: 46: /opt/domjudgeicpc2020/judgehost/judgings/judgehost03-0/endpoint-default/executable/kt/run: kotlinc: not found > > ========= > > > > My installed kotlin compiler version is: > > ======= > > /opt/domjudgeicpc2020/judgehost/bin$ kotlinc -version > > info: kotlinc-jvm 1.4.10 (JRE 1.8.0_144-b01) > > /opt/domjudgeicpc2020/judgehost/bin$ kotlin -version > > Kotlin version 1.4.10-release-411 (JRE 1.8.0_144-b01) > > ======= > > > > Please give me a guide to solve the problem. > > > > 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(a)fe.edu.vn > > Website: .... > > > > _______________________________________________ > > DOMjudge-devel mailing list > > DOMjudge-devel(a)domjudge.org > > https://www.domjudge.org/mailman/listinfo/domjudge-devel

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About : install judgehost with kotlin compiler support
by Tran Binh Duong (FE FPTU HN) 27 Oct '20

27 Oct '20

Hi all, I'm trying to install kotlin into our contest environment to open for contestants who will use kotlin as a language to solve their problem. But, it is still not success. I tried install kotlin by using snap, but there is a bug related to permission so I uninstalled it. Then, I installed in another way by using sdk script and Kotlinc is actually worked properly by using command lines in terminals. But when it was executing in judgehost, I got this message: ========= Compiling failed with exitcode 127, compiler output: /opt/domjudgeicpc2020/judgehost/judgings/judgehost03-0/endpoint-default/executable/kt/run: 46: /opt/domjudgeicpc2020/judgehost/judgings/judgehost03-0/endpoint-default/executable/kt/run: kotlinc: not found ========= My installed kotlin compiler version is: ======= /opt/domjudgeicpc2020/judgehost/bin$ kotlinc -version info: kotlinc-jvm 1.4.10 (JRE 1.8.0_144-b01) /opt/domjudgeicpc2020/judgehost/bin$ kotlin -version Kotlin version 1.4.10-release-411 (JRE 1.8.0_144-b01) ======= Please give me a guide to solve the problem. 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(a)fe.edu.vn Website: ....

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About: Load Testing domjudge with gatling
by Tran Binh Duong (FE FPTU HN) 23 Oct '20

23 Oct '20

Hi, I am trying to test installed domjudge system for our contest by using domjudge-gatling, but I got this error: "> Failed to build request Team Details: No attribute named 'team 1 ( 4.17%) _id' is defined > Failed to build request Request Clarification: No attribute na 1 ( 4.17%) med 'cid' is defined " I am using domjudge version 7.3.0, and the gatling scripts are downloaded from https://github.com/ubergeek42/domjudge-gatling. Do you know how to fix the problem? Regards, [https://avatars2.githubusercontent.com/u/672279?s=400&v=4]<https://github.com/ubergeek42/domjudge-gatling> ubergeek42/domjudge-gatling<https://github.com/ubergeek42/domjudge-gatling> Configuration files to use with gatling to load test domjudge - ubergeek42/domjudge-gatling github.com 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(a)fe.edu.vn Website: ....

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I would like to have a banner on the scoreboard for presenting our event information
by Duong Tran Binh (FE FPTU HN) 16 Oct '20

16 Oct '20

Hi all, I would like to display a banner on the top of scoreboard in Domjudge v7.3.0 but it couldn't be applied even I upload banner.png to the images folder. 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(a)fe.edu.vn Website: ....

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How to setup domserver version 7.3.0 with Nginx!
by Duong Tran Binh (FE FPTU HN) 15 Oct '20

15 Oct '20

Hi, I would like to use nginx as a web server for domjudge version 7.3.0. I followed the guide in domjudge document and I successfully configure the system work with Apache 2 because of its familiar, but with Nginx, I am still stucked. Could you please explain the way to configure domjudge in Nginx or any document to help me understand about Nginx better? By showing Nginx Log, I got this message: "no port in upstream "domjudge" in /opt/domjudgeicpc2020/domserver/etc/nginx-conf-inner" I don't understand the message meaning. 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(a)fe.edu.vn Website: ....

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How to configure domjudge version 7.3.0 to support for a 500 teams contest
by Duong Tran Binh (FE FPTU HN) 13 Oct '20

13 Oct '20

Dear all, We are planning to hold an online contest with 500 teams in my country, could you please suggest for us the typical configuration for a contest with the number of teams as our case. 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(a)fe.edu.vn Website: ....

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