[lxc-users] Is it possible to change memory limits without restarting container?

[CDR]

I just tested and in fact, the memory restriction does not work.
a) set a 5G limit for the container
b) started the container
c) gave 16 G memory to mysql
D) restarted mysql
it works fine and it also shows the memory on "show variable like '%buffer%'

Any idea how to work around this? I am afraid any container can take
down the box.

Philip

On Fri, May 9, 2014 at 5:58 AM, CDR <venefax at gmail.com> wrote:
> The memory limit falis in Ubuntu Server
>
> lxc-start -n utel-kde
> lxc-start: call to cgmanager_set_value_sync failed: invalid request
> lxc-start: Error setting cgroup memory.limit_in_bytes limit lxc/utel-kde
> lxc-start: Error setting memory.limit_in_bytes to 5GB for utel-kde
> lxc-start: failed to setup the cgroup limits for 'utel-kde'
> lxc-start: failed to spawn 'utel-kde'
>
>
> Yours
> Philip
>
> On Fri, May 9, 2014 at 5:22 AM, Wojciech Arabczyk <arabek at gmail.com> wrote:
>> This is a drawback of the procutils package, and nothing you can
>> really do about it. Better explained here:
>>
>> http://fabiokung.com/2014/03/13/memory-inside-linux-containers/
>>
>> On 9 May 2014 11:13, CDR <venefax at gmail.com> wrote:
>>> Dear Serge
>>> I type inside the container
>>> free -g
>>> and it shows the memory of the whole box.
>>> Am sure that is not by design.
>>> The customer must not see that.
>>>
>>> Philip
>>>
>>>
>>> On Thu, May 8, 2014 at 11:04 PM, Serge Hallyn <serge.hallyn at ubuntu.com> wrote:
>>>> Quoting CDR (venefax at gmail.com):
>>>>> Dear Friends
>>>>> I found an example for the config file
>>>>> lxc.cgroup.memory.limit_in_bytes = 5GB
>>>>> lxc.cgroup.memory.memsw.limit_in_bytes = 6G
>>>>>
>>>>> But the container still shows100% of the memoty.
>>>>
>>>> what do you mean by 'shows'?
>>>> _______________________________________________
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>>
>>
>> --
>> pozdrawiam
>> Wojciech Arabczyk
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