Hi Akila, On Fri, Nov 13, 2015 at 4:04 PM, Akila Ravihansa Perera <raviha...@wso2.com> wrote:
> Hi Isuru, > > Yes, this has been a troublesome experience for users when updating CC > configs. I've few concerns; > > - What if cartridge definition is updated after caching the built > IaaSProvider object? > - Is the cache is getting invalidated if cartridge definition is updated? > - Is the whole cache re-built when Stratos is restarted? Otherwise CC > config changes won't take effect ryt? > Building new IaasProvider objects is done when there is a need to spawn instances. Then the new IaasProvider object is cached. So the cache would not be re-built when the CC is restarted, but only when instances are actually getting spawned. The main reason for approach is that a cartridge validation/network partition validation can happen at anytime; so if we build the IaasProvider before starting an instance, we can use all the updates available from cloud-controller.xml, policies and cartridgde definitions. WDYT? Thanks. On Fri, Nov 13, 2015 at 2:03 PM, Isuru Haththotuwa <isu...@apache.org> wrote: > Hi Devs, > > $subject. > > This is happening because after initial information model is built > (IaasProvider object), it does not get re-built to detect any changes. The > mail thread [1] also describes a similar issue, where if we do not specify > image id in cloud-controller.xml, the instance not spawning in the selected > partition. > > As a fix we can do the following: > > - When an instance need to be spawned, build a new IaasProvider object > with the latest available configurations, and the caching the object in the > maps > - Consider the following order in building the IaasProvider object: > 1. IaaS provider information defined in cloud-controller.xml > 2. IaaS provider information defined in cartridge definition > > This ordering will ensure that any information defined in the > cloud-controller.xml can be overridden by information in the cartridge > definition. > > WDYT? > [1]. [EC2] Removing the Image Id from CC Results in instances Spinning in > Wrong Zones > > > -- > Thanks and Regards, > > Isuru H. > +94 716 358 048* <http://wso2.com/>* > > > -- Akila Ravihansa Perera WSO2 Inc.; http://wso2.com/ Blog: http://ravihansa3000.blogspot.com -- <http://ravihansa3000.blogspot.com> <http://ravihansa3000.blogspot.com> Thanks and Regards, Isuru H. <http://ravihansa3000.blogspot.com> +94 716 358 048 <http://ravihansa3000.blogspot.com>* <http://wso2.com/>* * <http://wso2.com/>*
