On Tue, Sep 16, 2014 at 1:53 PM, Lahiru Sandaruwan <lahi...@wso2.com> wrote:
> Hi Akila, > > > > On Tue, Sep 16, 2014 at 12:49 PM, Akila Ravihansa Perera < > raviha...@wso2.com> wrote: > >> Hi Raj, >> >> We can use the same CEP stream to publish cartridge agent health stats. >> We can identify the instance type (container or VM type) by retrieving >> member properties from the topology. But I don't think we should be doing >> that. >> >> IMO, we should not publish cartridge agent health stats from each and >> every container. It's better if we can have a global agent per Kubernetes >> host instance to monitor the health of every container and also in host >> instance itself. We can use a container monitoring agent like cAdvisor to >> collect container health stats. >> > > This is a good model. We will anyway have an agent in docker host as it is > a multi-tenant cartridge instance. Then we can improve same agent to > take-care of it's docker instances. We might need to let it know that it is > running in a docker host. > > Do you suggest we completely get rid of agent inside dockers? > > Thanks. > >> >> +1 for having a separate CEP execution plan for handling Docker >> containers scenario. >> >> As for the ContainerClusterMonitor, we should clearly outline the >> responsibilities of container monitor and VM monitor. Because since we are >> using Kubernetes for managing the life-cycle of containers, most of the >> tasks are already taken care of. For eg - we don't need to start a new >> container if an existing containers fails since Kubernetes will handle that >> failure. >> > > My concern of letting Kubernetes control minimum values is, it is > difficult to get the new member identified in Stratos side. Shall we take > that control to Autoscaler as we do for VM clusters? > Here Stratos will defining the min container count, but Kubernetes will take care of up and running it. > > Thanks. > >> >> WDYT? >> > > > > -- > -- > 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 > > -- Lakmal Warusawithana Vice President, Apache Stratos Director - Cloud Architecture; WSO2 Inc. Mobile : +94714289692 Blog : http://lakmalsview.blogspot.com/
