Dear Team We have hosted Domjudge 5.0.1 in our university, on 27-07-16 we have conducted practice test for our students , we are facing some issue in judgenode each 10-15 minutes it will goes down , i here attached the screen shots of apache error log file,anyone can help me to resolve the judgehost node down issue . We have separate technical wing is here ,i just enquire with them they told it occur due to the problem set time limit . For example one problem time limit have 1 minut after that the judgenode will goes down I think appache error log is not much for identify this problem, if anything more please specify i will update here Thanks & regards Aneesh
Hi Aneesh, On 27-07-16 08:01, Aneesh R wrote:
Dear Team
We have hosted Domjudge 5.0.1 in our university, on 27-07-16 we have conducted practice test for our students , we are facing some issue in judgenode each 10-15 minutes it will goes down , i here attached the screen shots of apache error log file,anyone can help me to resolve the judgehost node down issue . We have separate technical wing is here ,i just enquire with them they told it occur due to the problem set time limit . For example one problem time limit have 1 minut after that the judgenode will goes down
I think appache error log is not much for identify this problem, if anything more please specify i will update here
Could you attach the judge log file from one of the judgehosts that has experienced this problem at least a few times? Also, was the DOMjudge website in any way slow to respond when this occurred? Since my first guess would be a timeout issue when the judgedaemons are trying to contact the server via the REST API. Jaap
Hi Jaap! Please find the Judgehost log for the contest we had held on 27th. Anand. Sent from Mail<https://go.microsoft.com/fwlink/?LinkId=550986> for Windows 10 From: Jaap Eldering<mailto:jaap@jaapeldering.nl> Sent: 27 July 2016 06:18 PM To: Aneesh R<mailto:aneeshktr.amrita@gmail.com>; domjudge-devel@domjudge.org<mailto:domjudge-devel@domjudge.org> Cc: Anand Shenoi<mailto:shenoianand@gmail.com> Subject: Re: Judgenode Down issue Hi Aneesh, On 27-07-16 08:01, Aneesh R wrote:
Dear Team
We have hosted Domjudge 5.0.1 in our university, on 27-07-16 we have conducted practice test for our students , we are facing some issue in judgenode each 10-15 minutes it will goes down , i here attached the screen shots of apache error log file,anyone can help me to resolve the judgehost node down issue . We have separate technical wing is here ,i just enquire with them they told it occur due to the problem set time limit . For example one problem time limit have 1 minut after that the judgenode will goes down
I think appache error log is not much for identify this problem, if anything more please specify i will update here
Could you attach the judge log file from one of the judgehosts that has experienced this problem at least a few times? Also, was the DOMjudge website in any way slow to respond when this occurred? Since my first guess would be a timeout issue when the judgedaemons are trying to contact the server via the REST API. Jaap _______________________________________________ DOMjudge-devel mailing list DOMjudge-devel@domjudge.org https://www.domjudge.org/mailman/listinfo/domjudge-devel
On 04-08-16 01:10, Br. Anand Shenoi wrote:
Hi Jaap!
Please find the Judgehost log for the contest we had held on 27th.
I assume the contest ran approximately between 9am - 1pm? Before and after those times I see many errors that the judgedaemon cannot connect to the host (i.e. the domserver), but also during the contest there are a couple of times this is reported, see attached lines filtered from the judgedaemon log. It looks like that the connection was not always up and the judgedaemon couldn't reach the server. Alternatively, it could be that the server was under high load (but then I'd expect to see timeouts as well) or that it had a too low maximum connection count configured. Did you see the same problem with other judgehosts? Jaap
*From: *Jaap Eldering <mailto:jaap@jaapeldering.nl> *Sent: *27 July 2016 06:18 PM *To: *Aneesh R <mailto:aneeshktr.amrita@gmail.com>; domjudge-devel@domjudge.org <mailto:domjudge-devel@domjudge.org> *Cc: *Anand Shenoi <mailto:shenoianand@gmail.com> *Subject: *Re: Judgenode Down issue
Hi Aneesh,
On 27-07-16 08:01, Aneesh R wrote:
Dear Team
We have hosted Domjudge 5.0.1 in our university, on 27-07-16 we have conducted practice test for our students , we are facing some issue in judgenode each 10-15 minutes it will goes down , i here attached the screen shots of apache error log file,anyone can help me to resolve the judgehost node down issue . We have separate technical wing is here ,i just enquire with them they told it occur due to the problem set time limit . For example one problem time limit have 1 minut after that the judgenode will goes down
I think appache error log is not much for identify this problem, if anything more please specify i will update here
Could you attach the judge log file from one of the judgehosts that has experienced this problem at least a few times?
Also, was the DOMjudge website in any way slow to respond when this occurred? Since my first guess would be a timeout issue when the judgedaemons are trying to contact the server via the REST API.
Jaap
_______________________________________________ DOMjudge-devel mailing list DOMjudge-devel@domjudge.org https://www.domjudge.org/mailman/listinfo/domjudge-devel
Let me check. But we had only one judgehost. On Thu, Aug 4, 2016, 7:33 PM Jaap Eldering <jaap@jaapeldering.nl> wrote:
On 04-08-16 01:10, Br. Anand Shenoi wrote:
Hi Jaap!
Please find the Judgehost log for the contest we had held on 27th.
I assume the contest ran approximately between 9am - 1pm? Before and after those times I see many errors that the judgedaemon cannot connect to the host (i.e. the domserver), but also during the contest there are a couple of times this is reported, see attached lines filtered from the judgedaemon log.
It looks like that the connection was not always up and the judgedaemon couldn't reach the server. Alternatively, it could be that the server was under high load (but then I'd expect to see timeouts as well) or that it had a too low maximum connection count configured.
Did you see the same problem with other judgehosts?
Jaap
*From: *Jaap Eldering <mailto:jaap@jaapeldering.nl> *Sent: *27 July 2016 06:18 PM *To: *Aneesh R <mailto:aneeshktr.amrita@gmail.com>; domjudge-devel@domjudge.org <mailto:domjudge-devel@domjudge.org> *Cc: *Anand Shenoi <mailto:shenoianand@gmail.com> *Subject: *Re: Judgenode Down issue
Hi Aneesh,
On 27-07-16 08:01, Aneesh R wrote:
Dear Team
We have hosted Domjudge 5.0.1 in our university, on 27-07-16 we have conducted practice test for our students , we are facing some issue in judgenode each 10-15 minutes it will goes down , i here attached the screen shots of apache error log file,anyone can help me to resolve the judgehost node down issue . We have separate technical wing is here ,i just enquire with them they told it occur due to the problem set time limit . For example one problem time limit have 1 minut after that the judgenode will goes down
I think appache error log is not much for identify this problem, if anything more please specify i will update here
Could you attach the judge log file from one of the judgehosts that has experienced this problem at least a few times?
Also, was the DOMjudge website in any way slow to respond when this occurred? Since my first guess would be a timeout issue when the judgedaemons are trying to contact the server via the REST API.
Jaap
_______________________________________________ DOMjudge-devel mailing list DOMjudge-devel@domjudge.org https://www.domjudge.org/mailman/listinfo/domjudge-devel
Yes you are right the contest time is 10 AM to 1 PM,but we are using only one judgenode, before and after the contest the judge node will going down each 5 to 10 minutes.So is there ny way to reslove this. Now in the same server trying to upload 18.8MB sized test cases unfortunately we are getting warning message like :warning: No image file specified for new testcase, ignoring. We have already changed Mysql configuration file maximum allow size is from 16MB to 500MB, up to 15 MB sized test cases can successfully uploaded .So can ypu please help me to resolve this issue. On Thu, Aug 4, 2016 at 7:33 PM, Jaap Eldering <jaap@jaapeldering.nl> wrote:
On 04-08-16 01:10, Br. Anand Shenoi wrote:
Hi Jaap!
Please find the Judgehost log for the contest we had held on 27th.
I assume the contest ran approximately between 9am - 1pm? Before and after those times I see many errors that the judgedaemon cannot connect to the host (i.e. the domserver), but also during the contest there are a couple of times this is reported, see attached lines filtered from the judgedaemon log.
It looks like that the connection was not always up and the judgedaemon couldn't reach the server. Alternatively, it could be that the server was under high load (but then I'd expect to see timeouts as well) or that it had a too low maximum connection count configured.
Did you see the same problem with other judgehosts?
Jaap
*From: *Jaap Eldering <mailto:jaap@jaapeldering.nl> *Sent: *27 July 2016 06:18 PM *To: *Aneesh R <mailto:aneeshktr.amrita@gmail.com>; domjudge-devel@domjudge.org <mailto:domjudge-devel@domjudge.org> *Cc: *Anand Shenoi <mailto:shenoianand@gmail.com> *Subject: *Re: Judgenode Down issue
Hi Aneesh,
On 27-07-16 08:01, Aneesh R wrote:
Dear Team
We have hosted Domjudge 5.0.1 in our university, on 27-07-16 we have conducted practice test for our students , we are facing some issue in judgenode each 10-15 minutes it will goes down , i here attached the screen shots of apache error log file,anyone can help me to resolve the judgehost node down issue . We have separate technical wing is here ,i just enquire with them they told it occur due to the problem set time limit . For example one problem time limit have 1 minut after that the judgenode will goes down
I think appache error log is not much for identify this problem, if anything more please specify i will update here
Could you attach the judge log file from one of the judgehosts that has experienced this problem at least a few times?
Also, was the DOMjudge website in any way slow to respond when this occurred? Since my first guess would be a timeout issue when the judgedaemons are trying to contact the server via the REST API.
Jaap
_______________________________________________ DOMjudge-devel mailing list DOMjudge-devel@domjudge.org https://www.domjudge.org/mailman/listinfo/domjudge-devel
On 05-08-16 06:34, Aneesh R wrote:
Yes you are right the contest time is 10 AM to 1 PM,but we are using only one judgenode, before and after the contest the judge node will going down each 5 to 10 minutes.So is there ny way to reslove this.
Now in the same server trying to upload 18.8MB sized test cases unfortunately we are getting warning message like :warning: No image file specified for new testcase, ignoring. We have already changed Mysql configuration file maximum allow size is from 16MB to 500MB, up to 15 MB sized test cases can successfully uploaded .So can ypu please help me to resolve this issue.
You can safely ignore the image warning. Probably we should suppress that anyways. Did you also raise the relevant PHP limits? See the DOMjudge config check page. Jaap
On Thu, Aug 4, 2016 at 7:33 PM, Jaap Eldering <jaap@jaapeldering.nl <mailto:jaap@jaapeldering.nl>> wrote:
On 04-08-16 01:10, Br. Anand Shenoi wrote: > Hi Jaap! > > Please find the Judgehost log for the contest we had held on 27th.
I assume the contest ran approximately between 9am - 1pm? Before and after those times I see many errors that the judgedaemon cannot connect to the host (i.e. the domserver), but also during the contest there are a couple of times this is reported, see attached lines filtered from the judgedaemon log.
It looks like that the connection was not always up and the judgedaemon couldn't reach the server. Alternatively, it could be that the server was under high load (but then I'd expect to see timeouts as well) or that it had a too low maximum connection count configured.
Did you see the same problem with other judgehosts?
Jaap
> *From: *Jaap Eldering <mailto:jaap@jaapeldering.nl <mailto:jaap@jaapeldering.nl>> > *Sent: *27 July 2016 06:18 PM > *To: *Aneesh R <mailto:aneeshktr.amrita@gmail.com <mailto:aneeshktr.amrita@gmail.com>>; > domjudge-devel@domjudge.org <mailto:domjudge-devel@domjudge.org> <mailto:domjudge-devel@domjudge.org <mailto:domjudge-devel@domjudge.org>> > *Cc: *Anand Shenoi <mailto:shenoianand@gmail.com <mailto:shenoianand@gmail.com>> > *Subject: *Re: Judgenode Down issue > > > > Hi Aneesh, > > On 27-07-16 08:01, Aneesh R wrote: >> Dear Team >> >> We have hosted Domjudge 5.0.1 in our university, on 27-07-16 we have >> conducted practice test for our students , we are facing some issue in >> judgenode each 10-15 minutes it will goes down , i here attached the >> screen shots of apache error log file,anyone can help me to resolve the >> judgehost node down issue . We have separate technical wing is here ,i >> just enquire with them they told it occur due to the problem set time >> limit . For example one problem time limit have 1 minut after that the >> judgenode will goes down >> >> I think appache error log is not much for identify this problem, if >> anything more please specify i will update here > > Could you attach the judge log file from one of the judgehosts that has > experienced this problem at least a few times? > > Also, was the DOMjudge website in any way slow to respond when this > occurred? Since my first guess would be a timeout issue when the > judgedaemons are trying to contact the server via the REST API. > > Jaap > > _______________________________________________ > DOMjudge-devel mailing list > DOMjudge-devel@domjudge.org <mailto:DOMjudge-devel@domjudge.org> > https://www.domjudge.org/mailman/listinfo/domjudge-devel <https://www.domjudge.org/mailman/listinfo/domjudge-devel>
This is now resolved, Jaap! Thanks. Sent from Mail<https://go.microsoft.com/fwlink/?LinkId=550986> for Windows 10 From: Jaap Eldering<mailto:jaap@jaapeldering.nl> Sent: 05 August 2016 05:55 PM To: Aneesh R<mailto:aneeshktr.amrita@gmail.com> Cc: Br. Anand Shenoi<mailto:anandam@outlook.com>; domjudge-devel@domjudge.org<mailto:domjudge-devel@domjudge.org>; Anand Shenoi<mailto:shenoianand@gmail.com> Subject: Re: Judgenode Down issue On 05-08-16 06:34, Aneesh R wrote:
Yes you are right the contest time is 10 AM to 1 PM,but we are using only one judgenode, before and after the contest the judge node will going down each 5 to 10 minutes.So is there ny way to reslove this.
Now in the same server trying to upload 18.8MB sized test cases unfortunately we are getting warning message like :warning: No image file specified for new testcase, ignoring. We have already changed Mysql configuration file maximum allow size is from 16MB to 500MB, up to 15 MB sized test cases can successfully uploaded .So can ypu please help me to resolve this issue.
You can safely ignore the image warning. Probably we should suppress that anyways. Did you also raise the relevant PHP limits? See the DOMjudge config check page. Jaap
On Thu, Aug 4, 2016 at 7:33 PM, Jaap Eldering <jaap@jaapeldering.nl <mailto:jaap@jaapeldering.nl>> wrote:
On 04-08-16 01:10, Br. Anand Shenoi wrote: > Hi Jaap! > > Please find the Judgehost log for the contest we had held on 27th.
I assume the contest ran approximately between 9am - 1pm? Before and after those times I see many errors that the judgedaemon cannot connect to the host (i.e. the domserver), but also during the contest there are a couple of times this is reported, see attached lines filtered from the judgedaemon log.
It looks like that the connection was not always up and the judgedaemon couldn't reach the server. Alternatively, it could be that the server was under high load (but then I'd expect to see timeouts as well) or that it had a too low maximum connection count configured.
Did you see the same problem with other judgehosts?
Jaap
> *From: *Jaap Eldering <mailto:jaap@jaapeldering.nl <mailto:jaap@jaapeldering.nl>> > *Sent: *27 July 2016 06:18 PM > *To: *Aneesh R <mailto:aneeshktr.amrita@gmail.com <mailto:aneeshktr.amrita@gmail.com>>; > domjudge-devel@domjudge.org <mailto:domjudge-devel@domjudge.org> <mailto:domjudge-devel@domjudge.org <mailto:domjudge-devel@domjudge.org>> > *Cc: *Anand Shenoi <mailto:shenoianand@gmail.com <mailto:shenoianand@gmail.com>> > *Subject: *Re: Judgenode Down issue > > > > Hi Aneesh, > > On 27-07-16 08:01, Aneesh R wrote: >> Dear Team >> >> We have hosted Domjudge 5.0.1 in our university, on 27-07-16 we have >> conducted practice test for our students , we are facing some issue in >> judgenode each 10-15 minutes it will goes down , i here attached the >> screen shots of apache error log file,anyone can help me to resolve the >> judgehost node down issue . We have separate technical wing is here ,i >> just enquire with them they told it occur due to the problem set time >> limit . For example one problem time limit have 1 minut after that the >> judgenode will goes down >> >> I think appache error log is not much for identify this problem, if >> anything more please specify i will update here > > Could you attach the judge log file from one of the judgehosts that has > experienced this problem at least a few times? > > Also, was the DOMjudge website in any way slow to respond when this > occurred? Since my first guess would be a timeout issue when the > judgedaemons are trying to contact the server via the REST API. > > Jaap > > _______________________________________________ > DOMjudge-devel mailing list > DOMjudge-devel@domjudge.org <mailto:DOMjudge-devel@domjudge.org> > https://www.domjudge.org/mailman/listinfo/domjudge-devel <https://www.domjudge.org/mailman/listinfo/domjudge-devel>
participants (4)
-
Anand Shenoi -
Aneesh R -
Br. Anand Shenoi -
Jaap Eldering