Good night
I have two servers with Ubuntu 14.04.3 and LXD don't setup limits (now)
for memory usage.
======
☁ ~ lxc launch ubuntu master
Creating master done.
Starting master done.
☁ ~ free
total used free shared buffers
cached
Mem: 16112676 1416092 14696584 1984 326184
814600
-/+ buffers/cache: 275308 15837368
Swap: 16451580 0 16451580
☁ ~ lxc exec master free
total used free shared buffers
cached
Mem: 16112676 10604 16102072 2016 0
2412
......
☁ ~ lxc config set master limits.memory 25%
☁ ~ lxc exec master free
total used free shared buffers
cached
Mem: 16112676 10484 16102192 2016 0
2412
......
======
the same happens in another server here (with 16GB RAM too) and in my
Laptop (Ideapad Flex 14)
now if i try in https://linuxcontainers.org/lxd/try-it/
======
root@tryit:~# lxc launch ubuntu d1
Creating d1
Starting d1
root@tryit:~# lxc exec d1 free
total used free shared buffers
cached
Mem: 262144 114668 147476 804 0
106320
-/+ buffers/cache: 8348 253796
Swap: 6151872 8 6151864
root@tryit:~# lxc config set d1 limits.memory 50%
root@tryit:~# lxc exec d1 free
total used free shared buffers
cached
Mem: 131068 114464 16604 800 0
106316
-/+ buffers/cache: 8148 122920
Swap: 6151872 8 6151864
root@tryit:~#
======
this works!
now, the differences are that i am using 14.04, not 15.10 like in
try-it, but the try-it server is using 3.19 kernel (vivid based IIRC)
and my servers and my laptop are with wily kernel, 4.2.0-25 now, the
problem is related to kernel versions (appear in wily too ?)
my lxd packages comes from trusty-backports (now 0.26 version) and my
related packages in servers are:
======
☁ ~ dpkg -l | grep -E 'lxd|lxc|cgmanager'
ii cgmanager 0.39-2ubuntu2~ubuntu14.04.1
amd64 Central cgroup manager daemon
ii libcgmanager0:amd64 0.39-2ubuntu2~ubuntu14.04.1
amd64 Central cgroup manager daemon (client library)
ii liblxc1 1.1.5-0ubuntu3~ubuntu14.04.1
amd64 Linux Containers userspace tools (library)
ii lxc 1.1.5-0ubuntu3~ubuntu14.04.1
amd64 Linux Containers userspace tools
ii lxc-templates 1.1.5-0ubuntu3~ubuntu14.04.1
amd64 Linux Containers userspace tools (templates)
ii lxcfs 0.11-0ubuntu3~ubuntu14.04.1
amd64 FUSE based filesystem for LXC
ii lxd 0.26-0ubuntu2~ubuntu14.04.1
amd64 Container hypervisor based on LXC - daemon
ii lxd-client 0.26-0ubuntu2~ubuntu14.04.1
amd64 Container hypervisor based on LXC - client
ii lxd-tools 0.26-0ubuntu2~ubuntu14.04.1
amd64 Container hypervisor based on LXC - extra tools
ii python3-lxc 1.1.5-0ubuntu3~ubuntu14.04.1
amd64 Linux Containers userspace tools (Python 3.x bindings)
☁ ~
======
latest versions from trusty-backports branch.
i am thinking that the problem can be:
1. Kernel (4.2.0-25) in this case i will need, rollback to 3.19.x
kernels until the problem get corrected.
2. trusty-backports repository, in this case i will need, add
lxd-stable ppa to my servers and laptop.
3. some other thing unrelated to 1 and 2. (maybe limits.memory dont
work with lxd 0.26, try-it is using lxd 0.20 now for example)
well, somebody can help me to resolve this issue ?
Yonsy Solis
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