July 2018 - DOMjudge-devel

Additional Flags for runguard
by Sarthak Garg 28 Jul '18

28 Jul '18

What all changes do i have to make if I wish to add an additional flag while executing runguard. i want to add a new flag for network access: net_flag ./run testdata.in program.out sudo -n /opt/domjudge/judgehost/bin/runguard -r /opt/data/30000309/codeTest_2202/30000309271547/622/c1-s2-j301-27-50/testcase187783/.. --nproc=640 --no-core --streamsize=40000 --user=domjudge-run --walltime=1:1.1 --cputime=1:1.1 --filesize=40000 --stderr=program.err --outmeta=program.meta -- /testcase187783/execdir/program

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DOMjudge hackathon(s)
by Nicky Gerritsen 28 Jul '18

28 Jul '18

Hi all, As the programming contest season is rapidly approaching, we would like to make sure we have a stable version of DOMjudge which we can release. Our main goal for the next release (which will be 6.0) currently is to incorporate all changes we made during last season, especially during and on the way to the world finals. There is a separate icpc-live branch we desperately want to get rid of, but it still requires some work, for example to create config flags to put some features “behind”. Furthermore it would probably be nice to continue with the new looks. Because our previous hackathons resulted in a lot of completed work in a small amount of time, we would like to organise another one (or two) during the summer. If you want to join (everyone is welcome, even if you never coded on DOMjudge before), please fill in this Doodle poll: https://doodle.com/poll/rwuuasewi7k4zrwe <https://doodle.com/poll/rwuuasewi7k4zrwe> As most of the core developers are in the Europe/Amsterdam timezone, we will probably plan a whole day (somewhere between 10:00 and 20:00 CEST), but you are always welcome to join for shorter periods. Some of us might meet up in real life, but of course you are welcome to join “online”. If you have any more questions feel free to contact us! On behalf of the DOMjudge team, Best, Nicky

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Help me fix install domjudge on centos 6
by Nguyễn Văn Quân 22 Jul '18

22 Jul '18

Hi, I am install domjudge on centos 6. I have some problem: 1. I can not find how to edit grup when try find file contain GRUB_CMDLINE_LINUX_DEFAULT 2. When I try run bin/judgedaemon, It show error: [Jul 22 07:39:41.424] judgedaemon[21360]: Judge started on laptrinh [DOMjudge/5.3.2] [Jul 22 07:39:41.428] judgedaemon[21360]: Registering judgehost on endpoint http://localhost/domjudge/api [Jul 22 07:39:41.439] judgedaemon[21360]: error: Error while executing curl POST to url http://localhost/domjudge/api/judgehosts: couldn't connect to host I try to change localhos to main domain in restapi.secret file but it have same error: [Jul 22 08:05:24.360] judgedaemon[23100]: Judge started on laptrinh [DOMjudge/5.3.2] [Jul 22 08:05:24.365] judgedaemon[23100]: Registering judgehost on endpoint http://ictu.olp.cachhoc.net/domjudge/api [Jul 22 08:06:27.374] judgedaemon[23100]: error: Error while executing curl POST to url http://ictu.olp.cachhoc.net/domjudge/api/judgehosts: couldn't connect to host Please help me fix 2 bug. Thanks! -- _________________________ Name: Nguyen Van Quan Come from: Bac Ninh, Viet Nam Email: nguyenvanquan7826(a)gmail.com Blog: nguyenvanquan7826.com Phone: +84.96.567.7826

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[Domjudge]: Run checker developed in Checker framework problem?
by Bình Dương, Tran 22 Jul '18

22 Jul '18

Dear Sir, I have a checker from problem set of Northern Eurasia Programming Contest 2017 ( I uploaded it to my google driver and share it below ). The checker had been compiled and packaged into a jar file. I wrapped it by a run script. When I apply this checker (compare checker type) to the problem and trying to evaluate a submission, the following error arose: ==================== [Jul 11 04:58:49.719] testcase_run.sh[48059]: Comparing failed with exitcode 0, compare script output: [Jul 11 04:58:49.731] judgedaemon[47929]: error: Unknown exitcode from testcase_run.sh for s801, testcase 1: 1 ==================== I don't know how to fix it or make the checker work properly, please help me to do that. P/S: Because the original file has been blocked by google security service, I changed its extension to .zi, please rename it back to .zip and check. You can download the checker file from: "https://drive.google.com/open?id=1sV4UDRFS5i3c8HVRqA3UJiLLvumUx8GK" Regards, -- [Điện thoại: (04) 37687717 – Máy lẻ: 100]<http://Email:%20linhpt@fpt.edu.vn/> Thanks & Best regards ------------------------------------ TRẦN BÌNH DƯƠNG Giảng viên bộ môn Công Nghệ Phần mềm Trường Đại học FPT Tel: (04) 37687717 – Máy lẻ: 104 Mobile: 0936 168 165 Email: duongtb(a)fe.edu.vn<mailto:duongtb@fe.edu.vn> _______________________________________________________________________ The information in this e-mail and any attached files are CONFIDENTIAL and may be legally privileged or prohibited from disclosure and unauthorized use. The views of the author may not necessarily reflect those of the Company. It is intended solely for the addressee or the employee or agent responsible for delivering such materials to the addressee. If you have received this message in error please return it to the sender then delete the email and destroy any copies of it. If you are not the intended recipient, any form of reproduction, dissemination, copying, disclosure, modification, distribution and/or publication or any action taken or omitted to be taken in reliance upon this message or its attachments is prohibited and may be unlawful. At present the integrity of e-mail across the Internet cannot be guaranteed and messages sent via this medium are potentially at risk. All liability is excluded to the extent permitted by law for any claims arising as a result of the use of this medium to transmit information by or to FPT University. [https://mail.fpt.com.vn/sign.png] This email and any attachment is intended for use only by specified addressees and may contain legally privileged and/or confidential information. If you are not an intended recipient, please delete the original and any copy of this message, notify the writer by email or telephone at (84-24) 7300 7300 and accept our apologies for any inconvenience. * Please consider the environment before you print this email.

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Network Access inside Chroot environment
by Sarthak Garg 19 Jul '18

19 Jul '18

Hey, We are trying to integrate selenium with domjudge. Could you please help in figuring out the ways we can provide network access in chroot environment. We are trying to run the code below via domjudge. And domjudge is returning the following exception: java.net.UnknownHostException: www.google.com. Could you let us known if there is a work around. code: import java.net.*; import java.io.*; public class Solution { public static void main(String[] args) throws Exception { URL str = new URL("http://www.google.com/"); BufferedReader in = new BufferedReader( new InputStreamReader(str.openStream())); String inputLine; while ((inputLine = in.readLine()) != null) System.out.println(inputLine); in.close(); } }

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Information About: Configuration of Domjudge on ICPC World Finals
by Bình Dương, Tran 18 Jul '18

18 Jul '18

Dear Domjudge Team, Thank for your information on any new proud event of DOMjudge team. I'm working in FPT University in Viet Nam, we have been deploy domjudge in our university to train our ACM Teams. Recently, We would like to expand the ACM training program movement. So one of questions which we are trying to answer is "What is the configuration of Domjudge which is able to support for a contest with about 300 contestants who work individually?" So, could you share to me some information about the configuration which DOMjudge team has been organized in the ICPC World Finals Contest? Thanks for your support. Regards, -- [image: Điện thoại: (04) 37687717 – Máy lẻ: 100] <http://Email:%20linhpt@fpt.edu.vn/> Thanks & Best regards ------------------------------------ *TRẦN BÌNH DƯƠNG * Giảng viên bộ môn Công Nghệ Phần mềm Trường Đại học FPT Tel: (04) 37687717 – Máy lẻ: 104 Mobile: 0936 168 165 Email: duongtb(a)fe.edu.vn _______________________________________________________________________ The information in this e-mail and any attached files are CONFIDENTIAL and may be legally privileged or prohibited from disclosure and unauthorized use. The views of the author may not necessarily reflect those of the Company. It is intended solely for the addressee or the employee or agent responsible for delivering such materials to the addressee. If you have received this message in error please return it to the sender then delete the email and destroy any copies of it. If you are not the intended recipient, any form of reproduction, dissemination, copying, disclosure, modification, distribution and/or publication or any action taken or omitted to be taken in reliance upon this message or its attachments is prohibited and may be unlawful. At present the integrity of e-mail across the Internet cannot be guaranteed and messages sent via this medium are potentially at risk. All liability is excluded to the extent permitted by law for any claims arising as a result of the use of this medium to transmit information by or to FPT University.

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Re: Error while launching the dj_setup_database install
by Nicky Gerritsen 09 Jul '18

09 Jul '18

Hi Guillaume, Please don’t forgot to add the devel list in your mails. For your question: I’m not entirely sure. I think you can configure it using the MySQL server configuration. Regards, Nicky > On 6 Jul 2018, at 13:59, Guillaume MILAN <guillaumilan(a)gmail.com> wrote: > > Hi Nicky > Is it possible to change the mysql default collation? To be able to create the domjudge data base with the correct collation? > > Regards, > Guillaume > > > Le 6 juil. 2018 13:09, "Nicky Gerritsen" <nickygerritsen(a)me.com <mailto:nickygerritsen@me.com>> a écrit : > Hi Guillaume, > > This might happen with specific MySQL collations. If I remember correctly either utf8 or utf8mb4 has this issue and the other doesn’t. > > Regards, > > Nicky > >> On 6 Jul 2018, at 13:04, Guillaume MILAN <guillaumilan(a)gmail.com <mailto:guillaumilan@gmail.com>> wrote: >> >> Hello while I launch the dj_setup_database executable, >> I receive the following error. >> >> ERROR 1071 (42000) at line 436: Specified key was too long; max key length is 767 bytes >> >> Do you know what can create this error? >> >> Regards >> Guillaume >> >> _______________________________________________ >> DOMjudge-devel mailing list >> DOMjudge-devel(a)domjudge.org <mailto:DOMjudge-devel@domjudge.org> >> https://www.domjudge.org/mailman/listinfo/domjudge-devel <https://www.domjudge.org/mailman/listinfo/domjudge-devel> > >

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Error while launching the dj_setup_database install
by Guillaume MILAN 06 Jul '18

06 Jul '18

Hello while I launch the dj_setup_database executable, I receive the following error. *ERROR 1071 (42000) at line 436: Specified key was too long; max key length is 767 bytes* Do you know what can create this error? Regards Guillaume

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