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From Apache Wiki <wikidi...@apache.org>
Subject [Hadoop Wiki] Update of "Release1.0Requirements" by DougCutting
Date Thu, 02 Oct 2008 19:44:03 GMT
Dear Wiki user,

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The following page has been changed by DougCutting:

  ''Owen, you seem to be extending the ["Roadmap"]'s compatibility requirements to RPC protocols,
is that right?  Clients must be back-compatible with older servers and servers must be back-compatible
with older clients.  If so, perhaps we should vote on this new policy and update ["Roadmap"]
accordingly.  We could even start enforcing it before 1.0, so that, e.g., 0.20's protocols
would need to be back-compatible with 0.19's but 0.21's would not.  --DougCutting''
  ''Doug, This is a subtle issue: Here we are talking about new client application code calling
old methods on the !FileSystem class (not the RPC methods). This is in addition to the rpc
compatibility issue. --!SanjayRadia''
+ ''Sanjay, How does 'new client application code calling old methods on the !FileSystem'
differ from our current back-compatibility requirements?  --DougCutting''
  Question: Does the release number really matter?  Should we just keep adding features, improving
back-compatibility, etc?  Our ["Roadmap"] currently defines what a major release means.  Does
this need updating?  -- !DougCutting

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