-Re: Sampling in operations like Order by
Daniel Dai 2014-05-23, 18:11
The first job simply read input and dump to hdfs. The need for first job is:
1. SampleLoader does not work with non-hdfs loader
2. SampleLoader does not process any operators before "order by"
In some cases the first job can be optimized out, see
On Thu, May 22, 2014 at 8:04 PM, Ruoyu Liu <[EMAIL PROTECTED]> wrote:
NOTICE: This message is intended for the use of the individual or entity to
which it is addressed and may contain information that is confidential,
privileged and exempt from disclosure under applicable law. If the reader
of this message is not the intended recipient, you are hereby notified that
any printing, copying, dissemination, distribution, disclosure or
forwarding of this communication is strictly prohibited. If you have
received this communication in error, please contact the sender immediately
and delete it from your system. Thank You.