Apache Hive Connector for Talend StudioApache Hive Connector lets you connect to the Apache Hive engine to query petabytes of data in distributed storage using SQL. In this article you will learn how to quickly and efficiently integrate Apache Hive data in Talend Studio without coding. We will use high-performance Apache Hive Connector to easily connect to Apache Hive and then access the data inside Talend Studio. Let's follow the steps below to see how we can accomplish that! Apache Hive Connector for Talend Studio is based on ZappySys JDBC Bridge Driver which is part of ODBC PowerPack. It is a collection of high-performance ODBC drivers that enable you to integrate data in SQL Server, SSIS, a programming language, or any other ODBC-compatible application. ODBC PowerPack supports various file formats, sources and destinations, including REST/SOAP API, SFTP/FTP, storage services, and plain files, to mention a few. |
Connect to Apache Hive in other apps
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Prerequisites
Before we begin, make sure you meet the following prerequisite:
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Java 8 Runtime Environment (JRE) installed. It is recommended to use these distributions:
Download Apache Hive JDBC driver
To connect to Apache Hive in Talend Studio, you will have to download JDBC driver for it, which we will use in later steps. It is recommended to use JDBC driver compiled for Java 8, if possible. Let's perform these little steps right away:
- Visit MVN Repository.
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Download the JDBC driver, and save it locally,
e.g. to
D:\Drivers\JDBC\hive-jdbc-standalone.jar
. - Make sure to download the standalone version of the driver to avoid Java library dependency errors, e.g., hive-jdbc-4.0.1-standalone.jar.
- Done! That was easy, wasn't it? Let's proceed to the next step.
Create Data Source in ZappySys Data Gateway based on JDBC Bridge Driver
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Download and install ODBC PowerPack.
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Search for gateway in start menu and Open ZappySys Data Gateway:
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Go to Users Tab to add our first Gateway user. Click Add; we will give it a name tdsuser and enter password you like to give. Check Admin option and click OK to save. We will use these details later when we create linked server:
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Now we are ready to add a data source. Click Add, give data source a name (Copy this name somewhere, we will need it later) and then select Native - ZappySys JDBC Bridge Driver. Finally, click OK. And it will create the Data Set for it and open the ZS driver UI.
ApacheHiveDSNNative - ZappySys JDBC Bridge Driver -
Now, we need to configure the JDBC connection in the new ODBC data source. Simply enter the Connection string, credentials, configure other settings, and then click Test Connection button to test the connection:
ApacheHiveDSNjdbc:hive2://hive-instance-host-name:10000/defaultD:\Drivers\JDBC\hive-jdbc-standalone.jar[]Use these values when setting parameters:
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Connection string :jdbc:hive2://hive-instance-host-name:10000/default
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JDBC driver file(s) :D:\Drivers\JDBC\hive-jdbc-standalone.jar
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Connection parameters :[]
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You should see a message saying that connection test is successful:
Otherwise, if you are getting an error, check out our Community for troubleshooting tips.
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We are at the point where we can preview a SQL query. For more SQL query examples visit JDBC Bridge documentation:
ApacheHiveDSN-- Basic SELECT with a WHERE clause SELECT id, name, salary FROM employees WHERE department = 'Sales';
-- Basic SELECT with a WHERE clause SELECT id, name, salary FROM employees WHERE department = 'Sales';
You can also click on the <Select Table> dropdown and select a table from the list.The ZappySys JDBC Bridge Driver acts as a transparent intermediary, passing SQL queries directly to the Trino JDBC driver, which then handles the query execution. This means the Bridge Driver simply relays the SQL query without altering it.
Some JDBC drivers don't support
INSERT/UPDATE/DELETE
statements, so you may get an error saying "action is not supported" or a similar one. Please, be aware, this is not the limitation of ZappySys JDBC Bridge Driver, but is a limitation of the specific JDBC driver you are using. -
Click OK to finish creating the data source.
Read Apache Hive data in Talend Studio
To read Apache Hive data in Talend Studio, we'll need to complete several steps. Let's get through them all right away!
Create connection for input
- First of all, open Talend Studio
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Create a new connection:
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Select Microsoft SQL Server connection:
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Name your connection:
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Fill-in connection parameters and then click Test connection:
ApacheHiveDSN
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If the List of modules not installed for this operation window shows up, then download and install all of them:
Review and accept all additional module license agreements during the process
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Finally, you should see a successful connection test result at the end:
Add input
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Once we have a connection to ZappySys Data Gateway created, we can proceed by creating a job:
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Simply drag and drop ZappySys Data Gateway connection onto the job:
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Then create an input based on ZappySys Data Gateway connection:
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Continue by configuring a SQL query and click Guess schema button:
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Finish by configuring the schema, for example:
Add output
We are ready to add an output. From Palette drag and drop a tFileOutputDelimited output and connect it to the input:
Run the job
Finally, run the job and integrate your Apache Hive data:
Conclusion
In this article we showed you how to connect to Apache Hive in Talend Studio and integrate data without any coding, saving you time and effort. It's worth noting that ZappySys JDBC Bridge Driver allows you to connect not only to Apache Hive, but to any Java application that supports JDBC (just use a different JDBC driver and configure it appropriately).
We encourage you to download Apache Hive Connector for Talend Studio and see how easy it is to use it for yourself or your team.
If you have any questions, feel free to contact ZappySys support team. You can also open a live chat immediately by clicking on the chat icon below.
Download Apache Hive Connector for Talend Studio Documentation
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