Query the ways to set Fetch task to not enable Mapreduce job

Editor to share with you the query to set Fetch task to not enable Mapreduce job what are the ways, I hope you will learn something after reading this article, let's discuss it together!

Fetch task function for simple query: supported from Hive0.10.0 version

Configuration method:

Set.hive.fetch.task.conversion=more;-the Fetch task is turned on, so MapReduce job is no longer enabled for the above simple column query!

Hive-hiveconf hive.fetch.task.conversion=more

Both of the above methods enable the Fetch task, but both work temporarily. If you want to enable this feature all the time, you can add the following configuration to ${HIVE_HOME} / conf/hive-site.xml:

Modify the hive-site.xml file

Property >

Hive.fetch.task.conversion

More

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