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The following page has been changed by DougCutting: http://wiki.apache.org/hadoop/Release1%2e0Requirements ------------------------------------------------------------------------------ ''I mean RPC parameters. This one is boarderline. We are hurting for not have a language neutral serialization. Language neutral serialization is not that hard to do. There are many schemes that do this (Sun RPC, Protocol Buffers, Etch, Hessian, Thrift). We have to pick rather than invent.'' + ''I think for 1.0 we should not switch Hadoop's RPC mechanism. That is a good change to target for 2.0, when the RPC landscape is clearer. Language-neutral protocols also mean duplicated client-side logic which brings considerable complication.'' --DougCutting + === Versioning Scheme - Manual or Automated === Hadoop is likely to see fairly significant changes between 1.0 and 2.0. Given the compatibility requirements, we need some scheme (manual or automated) for versioning the RPC interfaces and also for versioning the data types that are passed as parameters to rpc.
