Imesh, does my previous email make sense, or am I missing the point somewhere?
On Wed, May 28, 2014 at 12:19 PM, chris snow <[email protected]> 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? > > Cheers, > > Chris > > > > On Wed, May 28, 2014 at 11:16 AM, Imesh Gunaratne <[email protected]> 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 <[email protected]> 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" <[email protected]> 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 <[email protected]> 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 <[email protected]> >>>>> wrote: >>>>> > Hi Chis. >>>>> > >>>>> > >>>>> > On Mon, May 26, 2014 at 5:27 PM, chris snow <[email protected]> >>>>> > 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: [email protected] 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 -- Check out my professional profile and connect with me on LinkedIn. http://lnkd.in/cw5k69
