[Lxc-users] Problem with cgroup with LXc

[Miroslav Lednicky, AVONET, s.r.o.]

Hello all,

	I started using LXCs. They are very nice.
But I have problems with cgroup.

There are problem with remove old informations from cgroup subdirectory.
It happend only sometimes. Typicaly zabbix agent in LXC can generate
this problem. But not always.

Please see:

ls -l /cgroup/test_lxc

drwxr-xr-x 3 root root 0 2010-09-29 23:07 10194
drwxr-xr-x 3 root root 0 2010-10-01 21:11 11382
drwxr-xr-x 3 root root 0 2010-10-03 18:29 12632
drwxr-xr-x 3 root root 0 2010-09-15 15:10 1715
drwxr-xr-x 3 root root 0 2010-10-15 07:31 20270
drwxr-xr-x 3 root root 0 2010-10-16 02:05 20468
drwxr-xr-x 3 root root 0 2010-10-16 22:42 21090
drwxr-xr-x 3 root root 0 2010-10-19 04:58 22349
drwxr-xr-x 3 root root 0 2010-08-27 16:09 22455
drwxr-xr-x 3 root root 0 2010-08-29 10:45 23636
drwxr-xr-x 3 root root 0 2010-09-16 19:10 2398
drwxr-xr-x 3 root root 0 2010-10-22 00:27 24182
drwxr-xr-x 3 root root 0 2010-10-26 06:45 27044
drwxr-xr-x 3 root root 0 2010-09-04 18:26 27119
drwxr-xr-x 3 root root 0 2010-09-05 04:24 27187
drwxr-xr-x 3 root root 0 2010-09-09 21:39 30581
drwxr-xr-x 3 root root 0 2010-09-20 10:10 4793
-r--r--r-- 1 root root 0 2010-08-02 13:53 cgroup.procs
-r--r--r-- 1 root root 0 2010-08-02 13:53 cpuacct.stat
-rw-r--r-- 1 root root 0 2010-08-02 13:53 cpuacct.usage
-r--r--r-- 1 root root 0 2010-08-02 13:53 cpuacct.usage_percpu
-rw-r--r-- 1 root root 0 2010-08-02 13:53 cpu.rt_period_us
-rw-r--r-- 1 root root 0 2010-08-02 13:53 cpu.rt_runtime_us
-rw-r--r-- 1 root root 0 2010-08-02 13:53 cpuset.cpu_exclusive
-rw-r--r-- 1 root root 0 2010-08-02 13:53 cpuset.cpus
-rw-r--r-- 1 root root 0 2010-08-02 13:53 cpuset.mem_exclusive
-rw-r--r-- 1 root root 0 2010-08-02 13:53 cpuset.mem_hardwall
-rw-r--r-- 1 root root 0 2010-08-02 13:53 cpuset.memory_migrate
-r--r--r-- 1 root root 0 2010-08-02 13:53 cpuset.memory_pressure
-rw-r--r-- 1 root root 0 2010-08-02 13:53 cpuset.memory_spread_page
-rw-r--r-- 1 root root 0 2010-08-02 13:53 cpuset.memory_spread_slab
-rw-r--r-- 1 root root 0 2010-08-02 13:53 cpuset.mems
-rw-r--r-- 1 root root 0 2010-08-02 13:53 cpuset.sched_load_balance
-rw-r--r-- 1 root root 0 2010-08-02 13:53 cpuset.sched_relax_domain_level
-rw-r--r-- 1 root root 0 2010-08-02 13:53 cpu.shares
--w------- 1 root root 0 2010-08-02 13:53 devices.allow
--w------- 1 root root 0 2010-08-02 13:53 devices.deny
-r--r--r-- 1 root root 0 2010-08-02 13:53 devices.list
-rw-r--r-- 1 root root 0 2010-08-02 13:53 freezer.state
-rw-r--r-- 1 root root 0 2010-08-02 13:53 memory.failcnt
--w------- 1 root root 0 2010-08-02 13:53 memory.force_empty
-rw-r--r-- 1 root root 0 2010-08-02 13:53 memory.limit_in_bytes
-rw-r--r-- 1 root root 0 2010-08-02 13:53 memory.max_usage_in_bytes
-rw-r--r-- 1 root root 0 2010-08-02 13:53 memory.memsw.failcnt
-rw-r--r-- 1 root root 0 2010-08-02 13:53 memory.memsw.limit_in_bytes
-rw-r--r-- 1 root root 0 2010-08-02 13:53 memory.memsw.max_usage_in_bytes
-r--r--r-- 1 root root 0 2010-08-02 13:53 memory.memsw.usage_in_bytes
-rw-r--r-- 1 root root 0 2010-08-02 13:53 memory.soft_limit_in_bytes
-r--r--r-- 1 root root 0 2010-08-02 13:53 memory.stat
-rw-r--r-- 1 root root 0 2010-08-02 13:53 memory.swappiness
-r--r--r-- 1 root root 0 2010-08-02 13:53 memory.usage_in_bytes
-rw-r--r-- 1 root root 0 2010-08-02 13:53 memory.use_hierarchy
-rw-r--r-- 1 root root 0 2010-08-02 13:53 net_cls.classid
-rw-r--r-- 1 root root 0 2010-08-02 13:53 notify_on_release
-rw-r--r-- 1 root root 0 2010-08-02 13:53 tasks

ls -R1 10194
10194:
2
cgroup.procs
cpuacct.stat
cpuacct.usage
cpuacct.usage_percpu
cpu.rt_period_us
cpu.rt_runtime_us
cpuset.cpu_exclusive
cpuset.cpus
cpuset.mem_exclusive
cpuset.mem_hardwall
cpuset.memory_migrate
cpuset.memory_pressure
cpuset.memory_spread_page
cpuset.memory_spread_slab
cpuset.mems
cpuset.sched_load_balance
cpuset.sched_relax_domain_level
cpu.shares
devices.allow
devices.deny
devices.list
freezer.state
memory.failcnt
memory.force_empty
memory.limit_in_bytes
memory.max_usage_in_bytes
memory.memsw.failcnt
memory.memsw.limit_in_bytes
memory.memsw.max_usage_in_bytes
memory.memsw.usage_in_bytes
memory.soft_limit_in_bytes
memory.stat
memory.swappiness
memory.usage_in_bytes
memory.use_hierarchy
net_cls.classid
notify_on_release
tasks

10194/2:
cgroup.procs
cpuacct.stat
cpuacct.usage
cpuacct.usage_percpu
cpu.rt_period_us
cpu.rt_runtime_us
cpuset.cpu_exclusive
cpuset.cpus
cpuset.mem_exclusive
cpuset.mem_hardwall
cpuset.memory_migrate
cpuset.memory_pressure
cpuset.memory_spread_page
cpuset.memory_spread_slab
cpuset.mems
cpuset.sched_load_balance
cpuset.sched_relax_domain_level
cpu.shares
devices.allow
devices.deny
devices.list
freezer.state
memory.failcnt
memory.force_empty
memory.limit_in_bytes
memory.max_usage_in_bytes
memory.memsw.failcnt
memory.memsw.limit_in_bytes
memory.memsw.max_usage_in_bytes
memory.memsw.usage_in_bytes
memory.soft_limit_in_bytes
memory.stat
memory.swappiness
memory.usage_in_bytes
memory.use_hierarchy
net_cls.classid
notify_on_release
tasks

It looks like as this problem:

http://www.mail-archive.com/devel@openvz.org/msg19736.html

But I have no solution.

Can somebody help me?

It is big problem with lxc-stop and lx-start. I must restarting server.

Thank you and best regards,

Miroslav.

-- 
Miroslav Lednicky, AVONET, s.r.o.