load from hadoop

Hi,

I have a requirement to copy data from Hadoop to Vertica 6.1. Data is certainly quite large. What is the best way out (by performance) - 

- Using copy command ? - Can I use on any node feature with Copy from hdfs and where can I find details of the copy from hdfs
- Using connectors and then mapred or streaming ?
- Any other way out ...

Thanks
NJ

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