Yes. IMO We can remove the metadata related to terminated instance from the CC and we can add meta data related to the new instance from the cartridge agent after new instance spawned.
Thanks, Gayan On Mon, Jul 21, 2014 at 4:53 PM, Pradeep Fernando <pradee...@gmail.com> wrote: > how the termination info (removing the metadata related to terminated > instance) get updated in the registry. Is it a task of CC bits ? > > thanks, > --Pradeep > > > On Mon, Jul 21, 2014 at 3:37 PM, Gayan Gunarathne <gay...@wso2.com> wrote: > >> >> Hi All, >> >> For the composite cartridge subscription[1], in the case of the cartridge >> instance is terminated and new instance create scenario, we need to share >> the new meta data with the dependencies cartridge.We will thinking of using >> the governance registry(G-Reg) with rest API for the meta data storing >> purposes and expose the rest API for access those meta data. >> >> As a real example. >> >> If there are two cartridges for Apache tomcat and MySQL in one >> application subscription.Once those cartridge initiates relevant cartridge >> agents will add their meta data to the G-Reg. Apache cartridge agent will >> update the MySQL metadata with the rest API call.Think of the scenario >> which MySQL cartridge is failure and it is initiated with the new >> instance(with new server ip, username , password) ,we will update the G-reg >> with the related MySQL meta data.So these new instances data should be >> replicated in the tomcat instance. >> >> AFAIK currently cartridge agent will listening to the complete topology >> and from this cartridge agent can filter the new instance initiate event >> of the dependence cartridge and get the relevant meta data from the G-Reg >> and update the configurations accordingly. >> >> Any thoughts of this? >> >> >> [1]. [Discuss] Grouping of services (cartridges) >> >> >> Thanks, >> Gayan >> >> >> >> >> >> >> >> >> >> -- >> >> Gayan Gunarathne >> Technical Lead >> WSO2 Inc. (http://wso2.com) >> email : gay...@wso2.com | mobile : +94 766819985 >> >> > > > > -- > Pradeep Fernando. > http://pradeepfernando.blogspot.com/ > -- Best Regards, Gayan Gunarathne Technical Lead WSO2 Inc. (http://wso2.com) email : gay...@wso2.com | mobile : +94 766819985
