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From Zhuo Liu <zzl0...@tigermail.auburn.edu>
Subject How to execute parallel jobs inside a query
Date Mon, 20 May 2013 02:24:09 GMT
Hello, everyone

I configured the "hive.exec.parallel" variable to be "true" in the
hive-site.xml and hive-default.xml.
However, each job inside a query still runs sequentially one by one
(though they are supposed to be able to execute concurrently by considering the shape of DAG).
And I also find that the number of "Stages" is always equal to the number
of mapreduce "jobs" (for a query).

Could anyone offer some help?

Thanks,
Zhuo Liu
Ph.D. Student, CSSE department
Auburn University, AL 36849
http://www.auburn.edu/~zzl0014/<http://www.auburn.edu/%7Ezzl0014/>

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