thanks for reply.
I used both command line tool and the api code as below:
GenericDatumReader datum = new GenericDatumReader();
DataFileReader reader = new DataFileReader(inFile, datum);
Schema schema = reader.getSchema();
I guss the problem is with the avro file, I know the file is not written
with avro library.
we are working on some other solutions. thanks!
On Thu, Jul 24, 2014 at 9:18 AM, Doug Cutting <cutt...@apache.org> wrote:
> On Thu, Jul 24, 2014 at 7:23 AM, Echo <echo...@gmail.com> wrote:
> > The avro library can't read the file with that 'union' schema, so I
> wonder:
>
> With which Avro library can't you read a file with a union schema?
> Unions are a standard feature and every implementation should be able
> to read a file with such a schema.
>
> You can view the file contents with the 'tojson' command line tool:
>
> java -jar /path/to/avro-tools.jar tojson --pretty myfile.avro
>
> (You can also use the 'getschema' command line tool to view the schema
> of the file.)
>
> Doug
>
