[英]How to enable LLAP in Hive 3?
I installed Hive 3.1.0 on top Hadoop 3.1.1(without using Ambari). 我在顶级Hadoop 3.1.1上安装了Hive 3.1.0(未使用Ambari)。 How can I enable LLAP feature in Hive.
如何在Hive中启用LLAP功能。
Configuring LLAP is covered in Hive Configuration Properties: LLAP section . Hive配置属性:LLAP部分中介绍了配置LLAP 。 To enable it you need to change
hive.llap.execution.mode
. 要启用它,您需要更改
hive.llap.execution.mode
。
The document describes how to set hive.llap.execution.mode
: 该文档介绍了如何设置
hive.llap.execution.mode
:
- Default Value: none
默认值:无
- Possible Values:
可能的值:
- none: not tried
无:未尝试
- map: only map operators are considered for llap
地图:只考虑地图运算符
- all: every operator is tried;
全部:每个操作员都经过尝试; but falls back to no-llap in case of problems
但在出现问题时会退回给您
- only: same as "all" but stops with an exception if execution is not possible (as of 2.2.0 with HIVE-15135)
仅:与“全部”相同,但在无法执行的情况下例外停止(从带有HIVE-15135的2.2.0开始)
- auto: conversion is controlled by hive
自动:转换由配置单元控制
For more information about LLAP refer to https://cwiki.apache.org/confluence/display/Hive/LLAP . 有关LLAP的更多信息,请参阅https://cwiki.apache.org/confluence/display/Hive/LLAP 。
This is a documentation for setting up LLAP
(Apache Hive Performance Tuning ) in hortonworks: 这是在
LLAP
设置LLAP
(Apache Hive性能调整)的文档:
https://docs.hortonworks.com/HDPDocuments/HDP3/HDP-3.1.0/performance-tuning/content/hive_setting_up_llap.html https://docs.hortonworks.com/HDPDocuments/HDP3/HDP-3.1.0/performance-tuning/content/hive_setting_up_llap.html
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