Package: lxc Version: 1:1.0.6-6+deb8u2 Severity: normal Dear Maintainer,
after configuring lxc, setting up a Debian Jessie container with openjdk and Tomcat I realised that lxc does not see the mem used by the java process: Top in the host system says: 30017 mysql 20 0 13,453g 1,426g 29796 S 0,3 1,2 1:00.06 jav Container top says: PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND 381 tomcat7 20 0 13,453g 1,426g 29796 S 0,3 1,2 0:59.74 java lxc-info output shows strange figures: Name: ct10 State: RUNNING PID: 29533 IP: 10.10.100.10 CPU use: 3.27 seconds BlkIO use: 7.40 MiB Memory use: 2.94 MiB Link: vethTNIID7 TX bytes: 30.50 KiB RX bytes: 55.98 KiB Total bytes: 86.47 KiB Setting the limits works by the way, but not for the Java/Tomcat process, as it is not seen: lxc.cgroup.memory.limit_in_bytes = 512M lxc.cgroup.memory.memsw.limit_in_bytes = 512M When I start filling up the memory with stress, the process is recognized by lxc and gets killed as it should be: [Mi Jan 13 16:38:06 2016] Task in /lxc/ct10 killed as a result of limit of /lxc/ct10 [Mi Jan 13 16:38:06 2016] memory: usage 524288kB, limit 524288kB, failcnt 981 [Mi Jan 13 16:38:06 2016] memory+swap: usage 524288kB, limit 524288kB, failcnt 0 [Mi Jan 13 16:38:06 2016] kmem: usage 0kB, limit 18014398509481983kB, failcnt 0 [Mi Jan 13 16:38:06 2016] Memory cgroup stats for /lxc/ct10: cache:124KB rss:524164KB rss_huge:0KB mapped_file:20KB writeback:0KB swap:0KB inactive_anon:66344KB active_anon:457904KB inactive_file:8KB active_file:0KB unevictable:0KB [Mi Jan 13 16:38:06 2016] [ pid ] uid tgid total_vm rss nr_ptes swapents oom_score_adj name [Mi Jan 13 16:38:06 2016] [31700] 0 31700 6599 507 18 0 0 bash [Mi Jan 13 16:38:06 2016] [31783] 0 31783 1792 21 6 0 0 stress [Mi Jan 13 16:38:06 2016] [31784] 0 31784 27116072 130571 262 0 0 stress [Mi Jan 13 16:38:06 2016] Memory cgroup out of memory: Kill process 31784 (stress) score 968 or sacrifice child [Mi Jan 13 16:38:06 2016] Killed process 31784 (stress) total-vm:108464288kB, anon-rss:522200kB, file-rss:84kB -- System Information: Debian Release: 8.2 APT prefers stable-updates APT policy: (500, 'stable-updates'), (500, 'stable') Architecture: amd64 (x86_64) Kernel: Linux 3.16.0-4-amd64 (SMP w/24 CPU cores) Locale: LANG=de_DE@euro, LC_CTYPE=de_DE@euro (charmap=ISO-8859-15) Shell: /bin/sh linked to /bin/bash Init: systemd (via /run/systemd/system) Versions of packages lxc depends on: ii init-system-helpers 1.22 ii libapparmor1 2.9.0-3 ii libc6 2.19-18+deb8u1 ii libcap2 1:2.24-8 ii libseccomp2 2.1.1-1 ii libselinux1 2.3-2 ii multiarch-support 2.19-18+deb8u1 ii python3 3.4.2-2 Versions of packages lxc recommends: ii debootstrap 1.0.67 ii openssl 1.0.1k-3+deb8u2 ii rsync 3.1.1-3 Versions of packages lxc suggests: pn lua5.2 <none> -- no debconf information Thanks for the help and ideas. Nemanja
