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如何在Hive 3中启用LLAP?

[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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