[lxc-users] Memory limit fails in Ubuntu Server

[Serge Hallyn]

Quoting CDR (venefax at gmail.com):
> 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

But did it actually fill up the memory?  What is memory.max_usage_in_bytes
showing?

> 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 6:09 AM, CDR <venefax at gmail.com> wrote:
> > I found the issue
> > This line
> > lxc.cgroup.memory.limit_in_bytes = 5G
> >
> > makes the container fail to start
> > while this one works
> > lxc.cgroup.memory.limit_in_bytes = 536870910
> >
> > I think that we should be free to specify the memory in any format, be
> > MB, G, etc.
> >
> > Philip
> >
> > On Fri, May 9, 2014 at 6:00 AM, CDR <venefax at gmail.com> wrote:
> >> 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'
> >>
> >> the line in my config file is
> >>
> >> lxc.cgroup.memory.limit_in_bytes = 536870910
> >>
> >> Yours
> >> Philip
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