Hi, I do follow exact with the help file and I do up to: -Install the necessary packages: # apt-get install libcgroup-dev (or # yum install libcgroup-devel on RedHat) - Edit grub config to add memory cgroup and swap accounting to the boot options. Edit /etc/default/grub and change the default commandline to GRUB_CMDLINE_LINUX_DEFAULT="quiet cgroup_enable=memory swapaccount=1". Then run update-grub and reboot. -Compile DOMjudge with cgroup support. Re-run ./configure and look for cgroup in the output. How to rebuild : Then rebuild the runguard with make build. I only make all after re-run ./configure Upto that point, then I run ./judgedaemon Then I said no cgroup Best
Lec. Huỳnh Anh Dũng ACM/ICPC SUPERVISOR FPT UNIVERSITY. http://www.fpt.edu.vn
-----Original Message----- From: Jaap Eldering [mailto:jaap@jaapeldering.nl] Sent: Saturday, April 30, 2016 10:45 AM To: Huynh Anh Dung dungha@fpt.edu.vn; domjudge-devel@domjudge.org Subject: Re: Please help
On 30-04-16 00:28, Huynh Anh Dung wrote:
Hi, I do install Cgroup follow but when I run ./judgedaemon it said "Not using cgroup" help
When you (re)ran configure did it say that cgroups were enabled?
Did you recompile and reinstall runguard (or the whole judgehost installation)?
Jaap
-----Original Message----- From: Jaap Eldering [mailto:jaap@jaapeldering.nl] Sent: Saturday, April 30, 2016 7:37 AM To: Huynh Anh Dung dungha@fpt.edu.vn Subject: Re: Please help
On 29-04-16 21:26, Huynh Anh Dung wrote:
Hi Jaap, Can you look at 2 lines : # exec java -client -Xss8m -Xmx${MEMLIMITJAVA}k -DONLINE_JUDGE=1 -DDOMJUDGE=1 '$MAINCLASS' exec java -client -Xmx3g -DONLINE_JUDGE=1 -DDOMJUDGE=1 '$MAINCLASS' before you change and successfully run, I already change.
I recommend not to change it like that: then if you change the configured global memory limit, it will not affect Java submissions. Also, if you now reduce the memory limit below 3 GB, then java submissions will automatically crash because the JVM is trying to allocate more memory than is allowed by DOMjudge. NOTE: DOMjudge imposes the memory limit onto the whole Java VM, that's why this this whole MEMRESERVED variable is needed in the first place.
Jaap
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