June 2018
Beginner to intermediate
210 pages
5h 12m
English
Content preview from Apache Hive Essentials - Second Edition
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Hivemall
Apache Hivemall (https://hivemall.incubator.apache.org/) is a collection of Hive UDFs for machine learning. It contains a number of ML algorithm implementations across classification, regression, recommendations, loss functions, and feature engineering, all as UDFs. This allows end users to use SQL and only SQL to apply machine learning algorithms to a large volume of training data. Perform the following steps to set it up:
- Download Hivemall from https://hivemall.incubator.apache.org/download.html and put it into HDFS:
$ hdfs fs -mkdir -p /apps/hivemall $ hdfs fs -put hivemall-all-xxx.jar /apps/hivemall
- Create permanent functions using script here (https://github.com/apache/incubator-hivemall/blob/master/resources/ddl/define-all-as-permanent.hive ...
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