hive-user mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From Srinivasan Hariharan02 <Srinivasan_...@infosys.com>
Subject Hive CBO
Date Tue, 22 Mar 2016 06:59:19 GMT
Hi,

Does Hive supports extended CBO options like cpu,io only for tez execution. When I See the
HIveDefaultCostModel class (https://github.com/apache/hive/blob/master/ql/src/java/org/apache/hadoop/hive/ql/optimizer/calcite/cost/HiveDefaultCostModel.java)
 all cost has been made to zero Cost. Whereas in HiveOnTezCostModel (https://github.com/apache/hive/blob/master/ql/src/java/org/apache/hadoop/hive/ql/optimizer/calcite/cost/HiveOnTezCostModel.java)
it is being calculated. Pls advice.

Regards,
Srinivasan Hariharan
+91-9940395830


Mime
View raw message