2011 05:02 PM
Subject: RE: Number of map reduce jobs generated
In this case would 2 M/R job run faster than one?
From: Tim Kaldewey [mailto:tkal...@us.ibm.com]
Sent: Thursday, March 24, 2011 2:30 PM
To: user@hive.apache.org
Subject: Number of map reduce jobs generated
Hello,
I notice
In this case would 2 M/R job run faster than one?
From: Tim Kaldewey [mailto:tkal...@us.ibm.com]
Sent: Thursday, March 24, 2011 2:30 PM
To: user@hive.apache.org
Subject: Number of map reduce jobs generated
Hello,
I noticed that for join queries that comprise an aggregate hive generates a
Hello,
I noticed that for join queries that comprise an aggregate hive generates a
query plan with two MR jobs, one does the join and the second the
aggregate. I was wondering if there is a way to hint hive to combine these
two operations in 1 MR job. I have attached an example of the set of
que
