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Avro, mail # user - Issue writing union in avro?


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Re: Issue writing union in avro?
Jonathan Coveney 2013-04-05, 11:15
Correction: the issue is when reading the string according to the avro
schema, not on writing. it fails before I get a chance to write :)
2013/4/5 Jonathan Coveney <[EMAIL PROTECTED]>

> I implemented essentially the Java avro example but using the
> GenericDatumWriter and GenericDatumReader and hit an issue.
>
> https://gist.github.com/jcoveney/5317904
>
> This is the error:
> Exception in thread "main" java.lang.RuntimeException:
> org.apache.avro.AvroTypeException: Expected start-union. Got
> VALUE_NUMBER_INT
>     at com.spotify.hadoop.mapred.Hrm.main(Hrm.java:45)
> Caused by: org.apache.avro.AvroTypeException: Expected start-union. Got
> VALUE_NUMBER_INT
>     at org.apache.avro.io.JsonDecoder.error(JsonDecoder.java:697)
>     at org.apache.avro.io.JsonDecoder.readIndex(JsonDecoder.java:441)
>     at
> org.apache.avro.io.ResolvingDecoder.doAction(ResolvingDecoder.java:229)
>     at org.apache.avro.io.parsing.Parser.advance(Parser.java:88)
>     at
> org.apache.avro.io.ResolvingDecoder.readIndex(ResolvingDecoder.java:206)
>     at
> org.apache.avro.generic.GenericDatumReader.read(GenericDatumReader.java:152)
>     at
> org.apache.avro.generic.GenericDatumReader.readRecord(GenericDatumReader.java:177)
>     at
> org.apache.avro.generic.GenericDatumReader.read(GenericDatumReader.java:148)
>     at
> org.apache.avro.generic.GenericDatumReader.read(GenericDatumReader.java:139)
>     at com.spotify.hadoop.mapred.Hrm.main(Hrm.java:38)
>
> Am I doing something wrong? Is this a bug? I'm digging in now but am
> curious if anyone has seen this before?
>
> I get the feeling I am working with Avro in a way that most people do not
> :)
>
>