How to enable LLAP in Hive 3?
Question
I installed Hive 3.1.0 on top Hadoop 3.1.1(without using Ambari). How can I enable LLAP feature in Hive.
2 answers
solution1
0 2018-09-20 20:59:10
Configuring LLAP is covered in Hive Configuration Properties: LLAP section . To enable it you need to change hive.llap.execution.mode .
The document describes how to set hive.llap.execution.mode :
- Default Value: none
- Possible Values:
- none: not tried
- map: only map operators are considered for llap
- all: every operator is tried; but falls back to no-llap in case of problems
- only: same as "all" but stops with an exception if execution is not possible (as of 2.2.0 with HIVE-15135)
- auto: conversion is controlled by hive
For more information about LLAP refer to https://cwiki.apache.org/confluence/display/Hive/LLAP .
solution2
0 2019-04-29 12:12:47
This is a documentation for setting up LLAP (Apache Hive Performance Tuning ) in hortonworks:
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