title: Azure Data lake VS Azure HDInsight
body: <p>I was going through the Microsoft documents:</p>
  
  <p><a href="https://docs.microsoft.com/en-us/azure/data-lake-store/data-lake-store-overview" rel="noreferrer">https://docs.microsoft.com/en-us/azure/data-lake-store/data-lake-store-overview</a></p>
  
  <p>I'm new to Azure Data lake and HDInsight. There is a statement in the URL which tells that</p>
  
  <pre><code>"Azure Data Lake Store can be accessed from Hadoop (available with HDInsight cluster) using the WebHDFS-compatible REST APIs."
  </code></pre>
  
  <p>As per my initial understanding, Data lake store is a store in which any kind of data can be stored. I think, HDInsight also kind of does the same thing.</p>
  
  <p>My question is what is the difference between Azure Data lake and Azure HDInsight? If HDInsight can be used for file storage or any kind of storage then Why to use Data Lake?It would be great if some one could clarify this in details. Thanks.</p>