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The following page has been changed by DougCutting: http://wiki.apache.org/hadoop/Release1%2e0Requirements ------------------------------------------------------------------------------ This was agreed to in a [http://markmail.org/message/flljdfpgj65zngsf thread on [EMAIL PROTECTED] There will be three separate projects, mapred, hdfs, and a library of common APIs and utilities (fs, io, conf, etc. packages). - === RPC versioning === + === Multi-language serialization === * A serialization format that will allow non-java clients to be supported. Note 1.0 does not need to provide non-java clients but we should be able to support them before going to 2.0. + ''Do you mean serialization of user objects, or RPC parameters? We have support for multi-lingual user objects already. As for RPC, I don't yet see the case for forcing 1.0 to wait until we're ready to support multiple native client libraries. --DougCutting'' + + === RPC server that's forward-friendly === + * RPC mechanism should be able to detect and throw exception on new methods that old servers clearly don't implement. + ''That could be added in 1.1, no? I don't see this as a 1.0 requirement, but maybe I'm missing something. What happens today when you call an undefined method? Protocol version mismatch, probably. --DougCutting'' == Release 2.0 Requirements ==
