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From "John McHugh (JIRA)" <j...@apache.org>
Subject [jira] [Created] (AVRO-1366) Avro 1.7.5 specification description of Object Container Files Metadata is wrong
Date Mon, 26 Aug 2013 15:45:01 GMT
John McHugh created AVRO-1366:
---------------------------------

             Summary: Avro 1.7.5 specification description of Object Container Files Metadata
is wrong
                 Key: AVRO-1366
                 URL: https://issues.apache.org/jira/browse/AVRO-1366
             Project: Avro
          Issue Type: Bug
          Components: spec
    Affects Versions: 1.7.5
         Environment: http://avro.apache.org/docs/current/spec.html
            Reporter: John McHugh
             Fix For: 1.7.5


In the documentation, the metadata is described as
"File metadata consists of:
   A long indicating the number of metadata key/value pairs.
   For each pair, a string key and bytes value."
In fact, the metadata appears to be a map.  If this is the case, the description should be
something like.

"File metadata is represented by an Avro map coded as a series of blocks where each block
consists of:
   A long indicating the number of metadata map key/value pairs in the block.
   For each pair, a string key and bytes value.
A long value of zero following a block indicates that there are no more blocks in the map."

Attempting to process the metadata using the existing specification results in an unexplained
0 byte following the last bytes value.



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