HDInsight Hive Metastore fails when the database name has dashes or hyphens

Working in Azure HDInsight support today, we see a failure when trying to run a Hive query on a freshly created HDInsight cluster. Its brand new and fails on the first try, so what could be wrong? Our Hive client app fails with this kind of error. Exception in thread “main” java.lang.RuntimeException: java.lang.RuntimeException: Unable to…

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How to call a Azure Machine Learning Web Service from NodeJS

Azure machine learning allows data scientists and developers to embed predictive analytics into applications. To learn more about Azure machine learning visit Azure machine learning documentation . A simplified process flow for Azure machine learning is: Create an Azure machine learning workspace that has an associated Azure storage account. Login to your Azure machine learning…

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Encoding the Hive query file in Azure HDInsight

Today at Microsoft we were using Azure Data Factory to run Hive Activities in Azure HDInsight on a schedule. Things were working fine for a while, but then we got an error that was hard to understand. I’ve simplified the scenario to illustrate the key points. The key is that Hive did not like the…

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