Query vectorization is disabled by default. As Administrator, you can enable query vectorization using the Cloudera Manager Safety Valve feature to set a Hive property. After you issue a query, Hive examines the query and the data to determine whether vectorization can occur. If not, Hive executes the query with vectorization disabled.
In Configuration, and search for hive-site.xml.
select the Hive service, for example, HIVE_ON_TEZ-1. Click
In HiveServer2 Advanced Configuration Snippet (Safety Valve) for hive-site.xml,
click + and add the
- Enter a value of true.
- Click Save.
- Click Actions > Deploy Client Configuration.
- Restart HIVE_ON_TEZ-1.