you can use hcatalog input and output formats to read/write ORC from mapreduce.
http://hive.apache.org/docs/hcat_r0.5.0/inputoutput.html
On Thu, Sep 26, 2013 at 9:34 PM, 陈涛 <bhsc.ha...@163.com> wrote:
> i am trying to write orcfile(snappy) instead of sequencefile(lzo) in
> mapreduce,but OrcStruct is not public include getFieldValue method:
> class OrcStruct implements Writable {
>
> private Object[] fields;
>
> OrcStruct(int children) {
> fields = new Object[children];
> }
>
> Object getFieldValue(int fieldIndex) {
> return fields[fieldIndex];
> }
> }
>
> so,how can i read orcfile?
>
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