PASS 2011 Keynote Isotope
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“I caught a fish thiiiiis biiig”

– On stage with Ted Kummert during the PASS 2011 Keynote on Big Data (thanks to Karen Lopez @datachick for the pic)

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During the PASS 2011 Keynote (back in October 2011), I had the honor to demo Hadoop on Windows / Azure.   One of the key showcases during that presentation was to show how to connect PowerPivot to Hadoop on Windows.  In this post, I show the steps on how to connect PowerPivot to Hadoop on Azure.

Pre-requisites

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Configuration Steps

1) Reference the following steps from How To Connect Excel to Hadoop on Azure via HiveODBC

The steps to follow are the:

  • Install the HiveODBC Driver (we will configure the DSN later)
  • Steps 1 – 3 from Using the Excel Hive Add-In to open the ports in Hadoop on Azure

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2) Create a Hive ODBC Data Source > File DSN

Here, we will go about creating a File DSN Hive ODBC Data Source.

Thanks to Andrew Brust (@andrewbrust), the better way to make a connection from PowerPivot to Hadoop on Azure is to create a File DSN.  This allows the full connection string to be stored directly within the PowerPivot workbook instead of relying on an existing DSN.

To do this:

  • Go to the ODBC Data Sources Administrator and click on the File DSN tab.

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  • Click on Add, Choose HIVE, Click Next, Click Browse to choose a location of the file; click Finish.

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  • Open the File DSN you just created and click Configure.  The ODBC Hive Setup and configure the host (e.g. [clustername].cloudapp.net) and authentication information (the username is what you had specified when you had created the cluster)

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3) Connect PowerPivot to Hadoop on Azure via the HiveODBC File DSN

  • Open up the PowerPivot ribbon and click on the Get External Data from Other Sources.

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  • From the Table Import Wizard, click on the Others (OLEDB/ODBC) and click Next.

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  • From here, click Build and the Data Link Properties, click on Provider, and ensure the Microsoft OLEDB Provider for ODBC Drivers is selected. Click Next.
  • In the Data Link Properties dialog, choose “Use connection string”, and click Build and choose the File DSN you had created from Step #2.  Enter in the password to your Hadoop on Azure cluster.  Click OK.

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  • The Data Link Properties now contains a connection string do the Hadoop on Azure cluster.

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Note, after this dialog, verify that the password has been entered into the connection string that that has been built into the Table Import Wizard.  Note, the blue arrow points to a lack of a PWD=<password> clause.  If the password isn’t specified, make sure to add it back in.

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  • Click OK, click Next.  From here you will get the Table Import Wizard and we are back to the usual PowerPivot steps.
  • Click on “Select from a list of tables and views to choose the data to import”

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  • Choose your table (e.g. hivesampletable) and import the data in.

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It looks like a lot of steps but once you get into the flow of things, it’s actually a relatively easy flow.

Enjoy!