Hi Sandeep, Thanks for the summary. I think you have covered everything.
thanks, Kishore G On Fri, May 2, 2014 at 11:10 PM, Sandeep Nayak <[email protected]> wrote: > Hi all, > > Kishore, Jason and I met today to discuss the Helix APIs. The > following tasks are identified > > - Commands will remain limited to the model entities i.e. Cluster, > Resource, Member and Partition. All other commands will be collapsed > in the ones for model. > > - We need to figure a way to have a generic command built so command > writers can simply update the generic command and we can execute that > command. > > - Finders introduced in the HelixClient will leverage HelixQuery > except for cases where its a simple find e.g. findById or findAll > where having the user write a query makes little sense and too much > overhead. > > - A package for pipeline stage processors needs to be introduced with > interfaces for Rebalancers, Provisioners and Target Providers. Name of > the package needs to be determined. > > - A separate package will be added by the name > "org.apache.helix.api.discovery" to carry ExternalView which will be > renamed to ClusterView in the API > > - All model entities will be interfaces (or abstract classes) in API, > all implementations will be in CORE and will implement the specific > interfaces/abstract classes. This will allow backward compatibility. > > - In a subsequent release we will deprecate the old CORE apis and > point to the appropriate API interfaces so that users can migrate out > of CORE into API. > > - Provider API or SPI will have two separate interface sets (a) to > store configuration and (b) for message bus > > - Resources will have specializations called PartitionedResource or > ReplicatedResource. The configuration and runtime-state of these > resource types will be different based on the types. > > - ReWrite recipes with the new APIs > > Other items to work on > > - Documentation to explain the helix actors, how they interact and > play with each other. > - Documentation on some of the core principles of the new API > > Kishore and Jason please add if I missed something. > > I will keep you guys posted as and when I progress through these items. > > Thanks, > > Sandeep >
