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# ġ:ClouderaHiveODBC # ĭownload the Cloudera Impala ODBC driver form the following location:Īs root execute the following command to install the odbc cloudera impala driver :
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Next, download the Cloudera Hive ODBC driver from the following address:Īs root execute the following command to install the Cloudera Hive ODBC driver : Loaded plugins: refresh-packagekit, security
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We have opted for unixODBC and installed as follows:
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The hive tables used in this article are created according to Cloudera tutorial that can be found here () Installing Cloudera Hive and Impala ODBC driverĪs a perquisite to install the Cloudera Hive and Impala ODBC drivers we need to have installed unixODBC or iODBC. To setup the Cloudera environment we used a Cloudera Quickstart image that can be downloaded from. Operating system: Oracle Virtual Box guest running CentOS 6.7 IP address: 192.168.1.20 Cloudera QuickStart Operating system: Oracle Virtual Box guest running OEL 6.5ĭatabase server: Oracle Enterprise Edition Ver. Also it has support for many different file formats. It is implemented as a Massive Parallel Processing query engine with SQL ANSI compatibility, having low latency that completely bypasses map reduce operations. Ĭloudera Impala is a more elaborated framework, starting to get wider acceptance and support by more and more vendors such as Amazon, Oracle, MapR, and others. It lacks transaction support and comes also with several limitations. All queries are translated into map reduce jobs and executed further in hadoop. It is using a query-like language called HiveQL. The ODBC heterogeneous gateway is a generic gateway that can be used practically with any data source that provides a functional ODBC driver.Īpache Hive is a data warehouse framework built on top of Hadoop used for mostly for analytics. There are specialized gateways, subjected to licensing and the generic ODBC gateway which is free. Heterogeneous gateways were developed by Oracle to address the direct connectivity and type translations from non-Oracle to Oracle databases. In the following article we will demonstrate one simple method to connect and query from Oracle directly to Apache Hive and Cloudera Impala using the ODBC heterogeneous gateway.
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There are several ways to connect Oracle or other RDBMS systems with the big data ecosystem, such as dedicated connectors, ETL, and custom ones. Hive Query Language is a subset of SQL-92.īig Data technologies have spread throughout organizations and the challenge of integration with legacy systems must be addressed somehow. The driver efficiently transforms an application’s SQL query into the equivalent form in HiveQL. Cloudera ODBC Driver for Hive is used for direct SQL and HiveQL access to Apache Hadoop / Hive distributions, enabling Business Intelligence (BI), analytics and reporting on Hadoop / Hive -based data. Cloudera ODBC 2.6.4 Driver Documentation for Apache Hive Cloudera ODBC 2.6.4 Driver Documentation. QuickStarts for CDH 5.13 QuickStarts for CDH 5.12 QuickStarts for CDH 5.10.
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# 5 - No authentication with SSL (NOSASL) # 4 - Username/password authentication with SSL (SASL) # 3 - Username/password authentication (SASL) # They can also be specified on the connection string. # Values for HOST, PORT, KrbFQDN, and KrbServiceName should be set here. # When set to 2, SimbaDM runs in UTF-8 mode. # When set to 1, SimbaDM runs in UTF-16 mode. # The DriverUnicodeEncoding setting is only used for SimbaDM # Driver: The location where the ODBC driver is installed to.ĭriver=/opt/cloudera/impalaodbc/lib/universal/libclouderaimpalaodbc.dylib # This key is not necessary and is only to give a description of the data source.ĭescription=Cloudera ODBC Driver for Impala DSN Sample Cloudera Impala DSN=Cloudera ODBC Driver for Impala # Specify any global ODBC configuration here such as ODBC tracing. Install the Cloudera ODBC Connector using its installerĬloudera ODBC Driver for Impala Install Guide.pdf Install the IODBC driver using its installer dmg file runs a GUI-based installer, first for the underlying IODBC driver needed for non-Windows systems, then for the Cloudera ODBC Connector, and finally for the BI tool itself.Ĭloudera-ODBC-Driver-for-Impala-Install-Guide.pdf
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To illustrate the outline of the setup process, here is a transcript of a session to set up all required drivers and a business intelligence application that uses the ODBC driver, under Mac OS X.