DataImportHandler - Solr - Apache Software Foundation
Data Import Request Handler Solr1.3 Most applications store data in relational databases or XML files and searching over such data is a common use-case. The DataImportHandler is a Solr contrib that provides a configuration driven way to import this data into Solr in both "full builds" and using incremental delta imports. Also see the DataImportHandlerFaq page. For simple usecases visit the DIHQuic
LanguageManual ORC - Apache Hive - Apache Software Foundation
The Optimized Row Columnar (ORC) file format provides a highly efficient way to store Hive data. It was designed to overcome limitations of the other Hive file formats. Using ORC files improves performance when Hive is reading, writing, and processing data. Compared with RCFile format, for example, ORC file format has many advantages such as: a single file as the output of each task, which reduces
Configuration Properties - Apache Hive - Apache Software Foundation
This document describes the Hive user configuration properties (sometimes called parameters, variables, or options), and notes which releases introduced new properties. The canonical list of configuration properties is managed in the HiveConf Java class, so refer to the HiveConf.java file for a complete list of configuration properties available in your Hive release. For information about how to u
AdminManual MetastoreAdmin - Apache Hive - Apache Software Foundation
IntroductionAll the metadata for Hive tables and partitions are accessed through the Hive Metastore. Metadata is persisted using JPOX ORM solution (Data Nucleus) so any database that is supported by it can be used by Hive. Most of the commercial relational databases and many open source databases are supported. See the list of supported databases in section below. You can find an E/R diagram for t
LanguageManual LateralView - Apache Hive - Apache Software Foundation
lateralView: LATERAL VIEW udtf(expression) tableAlias AS columnAlias (',' columnAlias)* fromClause: FROM baseTable (lateralView)* DescriptionLateral view is used in conjunction with user-defined table generating functions such as explode(). As mentioned in Built-in Table-Generating Functions, a UDTF generates zero or more output rows for each input row. A lateral view first applies the UDTF to eac
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WebHCat UsingWebHCat - Apache Hive - Apache Software Foundation
