On Wed, May 28, 2014 at 4:49 PM, chris snow <chsnow...@gmail.com> wrote:
> Hi Imesh, > > The autoscale policy relates to the cartridge, but on LXC you aren't > monitoring the cartridge value, instead you are monitoring the host. > If the load average hits a threshold because the host is presumably > under duress so the last thing you will want to do is spawn more LXC > instances on the host? > Correct! > > Cheers, > > Chris > > > > On Wed, May 28, 2014 at 11:16 AM, Imesh Gunaratne <im...@apache.org> > wrote: > > Hi Chris, > > > > Thanks for the quick response. > > Right, I still don't get why we cannot adjust the threshold values and > fix > > it. > > > > Thanks > > > > > > On Wed, May 28, 2014 at 11:37 AM, chris snow <chsnow...@gmail.com> > wrote: > >> > >> Hi Imesh, > >> > >> I haven't looked into this in any more detail. All I have done is > removed > >> those parameters from my auto scaling policy. > >> > >> Many thanks, > >> Chris > >> > >> On 28 May 2014 05:58, "Imesh Gunaratne" <im...@apache.org> wrote: > >>> > >>> Hi Chris, > >>> > >>> Were you able to check the memory consumption and load average values > >>> sent to Autoscaler by any chance? > >>> > >>> Thanks > >>> > >>> > >>> On Mon, May 26, 2014 at 6:31 PM, chris snow <chsnow...@gmail.com> > wrote: > >>>> > >>>> Hi Lahiru, > >>>> > >>>> It looks like there's some good info here [1]. However, as a first > >>>> step, I was wondering whether we should add a note to the wiki to > >>>> recommend not using the memory consumption or load average parameters > >>>> for docker/lxc guests [2]? > >>>> > >>>> Cheers, > >>>> > >>>> Chris > >>>> > >>>> --- > >>>> [1] > >>>> > http://blog.docker.io/2013/10/gathering-lxc-docker-containers-metrics/ > >>>> [2 > >>>> > https://cwiki.apache.org/confluence/display/STRATOS/4.0.0+Auto-scaling+Guide#id-4.0.0Auto-scalingGuide-memoryConsumptio > >>>> > >>>> On Mon, May 26, 2014 at 1:24 PM, Lahiru Sandaruwan <lahi...@wso2.com> > >>>> wrote: > >>>> > Hi Chis. > >>>> > > >>>> > > >>>> > On Mon, May 26, 2014 at 5:27 PM, chris snow <chsnow...@gmail.com> > >>>> > wrote: > >>>> >> > >>>> >> Hi Guys, > >>>> >> > >>>> >> I noticed on my stratos+openstack+docker installation that stratos > >>>> >> was > >>>> >> getting into a cycle trying to spawn new instances. > >>>> >> > >>>> >> I think this is because load average (and probably memory > >>>> >> consumption) > >>>> >> on lxc/docker instances is the same value as for the host [1]. > >>>> >> > >>>> >> Question: Am I correct in thinking that load average and memory > >>>> >> consumption autoscaling parameters aren't a good idea for docker > >>>> >> guests? > >>>> > > >>>> > > >>>> > Is there a way to find out the load average and memory consumption > of > >>>> > the > >>>> > guest? > >>>> > > >>>> > I think the proper solution is to customize/fix Cartridge agent find > >>>> > out > >>>> > relevant values in these type of environments and publish stats to > >>>> > CEP. > >>>> > > >>>> > Thanks. > >>>> >> > >>>> >> > >>>> >> Many thanks, > >>>> >> > >>>> >> Chris > >>>> >> > >>>> >> --- > >>>> >> [1] > >>>> >> > >>>> >> > http://unix.stackexchange.com/questions/132021/is-a-lxc-docker-guest-load-average-the-same-as-the-hosts-load-average > >>>> > > >>>> > > >>>> > > >>>> > > >>>> > -- > >>>> > -- > >>>> > Lahiru Sandaruwan > >>>> > Committer and PMC member, Apache Stratos, > >>>> > Senior Software Engineer, > >>>> > WSO2 Inc., http://wso2.com > >>>> > lean.enterprise.middleware > >>>> > > >>>> > email: lahi...@wso2.com cell: (+94) 773 325 954 > >>>> > blog: http://lahiruwrites.blogspot.com/ > >>>> > twitter: http://twitter.com/lahirus > >>>> > linked-in: http://lk.linkedin.com/pub/lahiru-sandaruwan/16/153/146 > >>>> > > >>>> > >>>> > >>>> > >>>> -- > >>>> Check out my professional profile and connect with me on LinkedIn. > >>>> http://lnkd.in/cw5k69 > >>> > >>> > >>> > >>> > >>> -- > >>> Imesh Gunaratne > >>> > >>> Technical Lead, WSO2 > >>> Committer & PPMC Member, Apache Stratos > > > > > > > > > > -- > > Imesh Gunaratne > > > > Technical Lead, WSO2 > > Committer & PPMC Member, Apache Stratos > > > > -- > Check out my professional profile and connect with me on LinkedIn. > http://lnkd.in/cw5k69 > -- Best Regards, Nirmal Nirmal Fernando. PPMC Member & Committer of Apache Stratos, Senior Software Engineer, WSO2 Inc. Blog: http://nirmalfdo.blogspot.com/
