| <?xml version="1.0" encoding="UTF-8"?> |
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| <!DOCTYPE concept PUBLIC "-//OASIS//DTD DITA Concept//EN" "concept.dtd"> |
| <concept id="intro"> |
| |
| <title id="impala"><ph audience="standalone">Introducing Apache Impala</ph><ph audience="integrated">Apache Impala Overview</ph></title> |
| <prolog> |
| <metadata> |
| <data name="Category" value="Impala"/> |
| <data name="Category" value="Getting Started"/> |
| <data name="Category" value="Concepts"/> |
| <data name="Category" value="Data Analysts"/> |
| <data name="Category" value="Developers"/> |
| </metadata> |
| </prolog> |
| |
| <conbody id="intro_body"> |
| |
| <p> |
| Impala provides fast, interactive SQL queries directly on your Apache Hadoop data stored in HDFS, |
| HBase, <ph rev="2.2.0">or the Amazon Simple Storage Service (S3)</ph>. |
| In addition to using the same unified storage platform, |
| Impala also uses the same metadata, SQL syntax (Hive SQL), ODBC driver, and user interface |
| (Impala query UI in Hue) as Apache Hive. This |
| provides a familiar and unified platform for real-time or batch-oriented queries. |
| </p> |
| |
| <p> |
| Impala is an addition to tools available for querying big data. Impala does not replace the batch |
| processing frameworks built on MapReduce such as Hive. Hive and other frameworks built on MapReduce are |
| best suited for long running batch jobs, such as those involving batch processing of Extract, Transform, |
| and Load (ETL) type jobs. |
| </p> |
| |
| <note> |
| Impala graduated from the Apache Incubator on November 15, 2017. |
| In places where the documentation formerly referred to <q>Cloudera Impala</q>, |
| now the official name is <q>Apache Impala</q>. |
| </note> |
| |
| </conbody> |
| |
| <concept id="benefits"> |
| |
| <title>Impala Benefits</title> |
| |
| <conbody> |
| |
| <p conref="../shared/impala_common.xml#common/impala_benefits"/> |
| |
| </conbody> |
| </concept> |
| |
| <concept id="impala_hadoop"> |
| |
| <title>How Impala Works with <keyword keyref="hadoop_distro"/></title> |
| <prolog> |
| <metadata> |
| <data name="Category" value="Concepts"/> |
| </metadata> |
| </prolog> |
| |
| <conbody> |
| |
| <p audience="hidden" conref="../shared/impala_common.xml#common/impala_overview_diagram"/> |
| |
| <p conref="../shared/impala_common.xml#common/component_list"/> |
| |
| <p conref="../shared/impala_common.xml#common/query_overview"/> |
| </conbody> |
| </concept> |
| |
| <concept id="features"> |
| |
| <title>Primary Impala Features</title> |
| |
| <conbody> |
| |
| <p conref="../shared/impala_common.xml#common/feature_list"/> |
| </conbody> |
| </concept> |
| </concept> |