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 <h1 id="microsoft-azure">Microsoft Azure</h1>

 <p>To use this Apache Druid (incubating) extension, make sure to <a href="../../operations/including-extensions.html">include</a> <code>druid-azure-extensions</code> extension.</p>

 <h2 id="deep-storage">Deep Storage</h2>

 <p><a href="http://azure.microsoft.com/en-us/services/storage/">Microsoft Azure Storage</a> is another option for deep storage. This requires some additional Druid configuration.</p>

 <table><thead>
 <tr>
 <th>Property</th>
 <th>Possible Values</th>
 <th>Description</th>
 <th>Default</th>
 </tr>
 </thead><tbody>
 <tr>
 <td><code>druid.storage.type</code></td>
 <td>azure</td>
 <td></td>
 <td>Must be set.</td>
 </tr>
 <tr>
 <td><code>druid.azure.account</code></td>
 <td></td>
 <td>Azure Storage account name.</td>
 <td>Must be set.</td>
 </tr>
 <tr>
 <td><code>druid.azure.key</code></td>
 <td></td>
 <td>Azure Storage account key.</td>
 <td>Must be set.</td>
 </tr>
 <tr>
 <td><code>druid.azure.container</code></td>
 <td></td>
 <td>Azure Storage container name.</td>
 <td>Must be set.</td>
 </tr>
 <tr>
 <td><code>druid.azure.protocol</code></td>
 <td>http or https</td>
 <td></td>
 <td>https</td>
 </tr>
 <tr>
 <td><code>druid.azure.maxTries</code></td>
 <td></td>
 <td>Number of tries before cancel an Azure operation.</td>
 <td>3</td>
 </tr>
 </tbody></table>

 <p>See <a href="http://azure.microsoft.com/en-us/pricing/free-trial/">Azure Services</a> for more information.</p>

 <h2 id="firehose">Firehose</h2>

 <h4 id="staticazureblobstorefirehose">StaticAzureBlobStoreFirehose</h4>

 <p>This firehose ingests events, similar to the StaticS3Firehose, but from an Azure Blob Store.</p>

 <p>Data is newline delimited, with one JSON object per line and parsed as per the <code>InputRowParser</code> configuration.</p>

 <p>The storage account is shared with the one used for Azure deep storage functionality, but blobs can be in a different container.</p>

 <p>As with the S3 blobstore, it is assumed to be gzipped if the extension ends in .gz</p>

 <p>This firehose is <em>splittable</em> and can be used by <a href="../../ingestion/native_tasks.html#parallel-index-task">native parallel index tasks</a>.
 Since each split represents an object in this firehose, each worker task of <code>index_parallel</code> will read an object.</p>

 <p>Sample spec:</p>
 <div class="highlight"><pre><code class="language-json" data-lang="json"><span></span><span class="s2">&quot;firehose&quot;</span> <span class="err">:</span> <span class="p">{</span>
     <span class="nt">&quot;type&quot;</span> <span class="p">:</span> <span class="s2">&quot;static-azure-blobstore&quot;</span><span class="p">,</span>
     <span class="nt">&quot;blobs&quot;</span><span class="p">:</span> <span class="p">[</span>
         <span class="p">{</span>
           <span class="nt">&quot;container&quot;</span><span class="p">:</span> <span class="s2">&quot;container&quot;</span><span class="p">,</span>
           <span class="nt">&quot;path&quot;</span><span class="p">:</span> <span class="s2">&quot;/path/to/your/file.json&quot;</span>
         <span class="p">},</span>
         <span class="p">{</span>
           <span class="nt">&quot;container&quot;</span><span class="p">:</span> <span class="s2">&quot;anothercontainer&quot;</span><span class="p">,</span>
           <span class="nt">&quot;path&quot;</span><span class="p">:</span> <span class="s2">&quot;/another/path.json&quot;</span>
         <span class="p">}</span>
     <span class="p">]</span>
 <span class="p">}</span>
 </code></pre></div>
 <p>This firehose provides caching and prefetching features. In IndexTask, a firehose can be read twice if intervals or
 shardSpecs are not specified, and, in this case, caching can be useful. Prefetching is preferred when direct scan of objects is slow.</p>

 <table><thead>
 <tr>
 <th>property</th>
 <th>description</th>
 <th>default</th>
 <th>required?</th>
 </tr>
 </thead><tbody>
 <tr>
 <td>type</td>
 <td>This should be <code>static-azure-blobstore</code>.</td>
 <td>N/A</td>
 <td>yes</td>
 </tr>
 <tr>
 <td>blobs</td>
 <td>JSON array of <a href="https://msdn.microsoft.com/en-us/library/azure/ee691964.aspx">Azure blobs</a>.</td>
 <td>N/A</td>
 <td>yes</td>
 </tr>
 <tr>
 <td>maxCacheCapacityBytes</td>
 <td>Maximum size of the cache space in bytes. 0 means disabling cache. Cached files are not removed until the ingestion task completes.</td>
 <td>1073741824</td>
 <td>no</td>
 </tr>
 <tr>
 <td>maxFetchCapacityBytes</td>
 <td>Maximum size of the fetch space in bytes. 0 means disabling prefetch. Prefetched files are removed immediately once they are read.</td>
 <td>1073741824</td>
 <td>no</td>
 </tr>
 <tr>
 <td>prefetchTriggerBytes</td>
 <td>Threshold to trigger prefetching Azure objects.</td>
 <td>maxFetchCapacityBytes / 2</td>
 <td>no</td>
 </tr>
 <tr>
 <td>fetchTimeout</td>
 <td>Timeout for fetching an Azure object.</td>
 <td>60000</td>
 <td>no</td>
 </tr>
 <tr>
 <td>maxFetchRetry</td>
 <td>Maximum retry for fetching an Azure object.</td>
 <td>3</td>
 <td>no</td>
 </tr>
 </tbody></table>

 <p>Azure Blobs:</p>

 <table><thead>
 <tr>
 <th>property</th>
 <th>description</th>
 <th>default</th>
 <th>required?</th>
 </tr>
 </thead><tbody>
 <tr>
 <td>container</td>
 <td>Name of the azure <a href="https://azure.microsoft.com/en-us/documentation/articles/storage-dotnet-how-to-use-blobs/#create-a-container">container</a></td>
 <td>N/A</td>
 <td>yes</td>
 </tr>
 <tr>
 <td>path</td>
 <td>The path where data is located.</td>
 <td>N/A</td>
 <td>yes</td>
 </tr>
 </tbody></table>

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	<h1 id="microsoft-azure">Microsoft Azure</h1>

	<p>To use this Apache Druid (incubating) extension, make sure to <a href="../../operations/including-extensions.html">include</a> <code>druid-azure-extensions</code> extension.</p>

	<h2 id="deep-storage">Deep Storage</h2>

	<p><a href="http://azure.microsoft.com/en-us/services/storage/">Microsoft Azure Storage</a> is another option for deep storage. This requires some additional Druid configuration.</p>

	<table><thead>
	<tr>
	<th>Property</th>
	<th>Possible Values</th>
	<th>Description</th>
	<th>Default</th>
	</tr>
	</thead><tbody>
	<tr>
	<td><code>druid.storage.type</code></td>
	<td>azure</td>
	<td></td>
	<td>Must be set.</td>
	</tr>
	<tr>
	<td><code>druid.azure.account</code></td>
	<td></td>
	<td>Azure Storage account name.</td>
	<td>Must be set.</td>
	</tr>
	<tr>
	<td><code>druid.azure.key</code></td>
	<td></td>
	<td>Azure Storage account key.</td>
	<td>Must be set.</td>
	</tr>
	<tr>
	<td><code>druid.azure.container</code></td>
	<td></td>
	<td>Azure Storage container name.</td>
	<td>Must be set.</td>
	</tr>
	<tr>
	<td><code>druid.azure.protocol</code></td>
	<td>http or https</td>
	<td></td>
	<td>https</td>
	</tr>
	<tr>
	<td><code>druid.azure.maxTries</code></td>
	<td></td>
	<td>Number of tries before cancel an Azure operation.</td>
	<td>3</td>
	</tr>
	</tbody></table>

	<p>See <a href="http://azure.microsoft.com/en-us/pricing/free-trial/">Azure Services</a> for more information.</p>

	<h2 id="firehose">Firehose</h2>

	<h4 id="staticazureblobstorefirehose">StaticAzureBlobStoreFirehose</h4>

	<p>This firehose ingests events, similar to the StaticS3Firehose, but from an Azure Blob Store.</p>

	<p>Data is newline delimited, with one JSON object per line and parsed as per the <code>InputRowParser</code> configuration.</p>

	<p>The storage account is shared with the one used for Azure deep storage functionality, but blobs can be in a different container.</p>

	<p>As with the S3 blobstore, it is assumed to be gzipped if the extension ends in .gz</p>

	<p>This firehose is <em>splittable</em> and can be used by <a href="../../ingestion/native_tasks.html#parallel-index-task">native parallel index tasks</a>.
	Since each split represents an object in this firehose, each worker task of <code>index_parallel</code> will read an object.</p>

	<p>Sample spec:</p>
	<div class="highlight"><pre><code class="language-json" data-lang="json"><span></span><span class="s2">"firehose"</span> <span class="err">:</span> <span class="p">{</span>
	<span class="nt">"type"</span> <span class="p">:</span> <span class="s2">"static-azure-blobstore"</span><span class="p">,</span>
	<span class="nt">"blobs"</span><span class="p">:</span> <span class="p">[</span>
	<span class="p">{</span>
	<span class="nt">"container"</span><span class="p">:</span> <span class="s2">"container"</span><span class="p">,</span>
	<span class="nt">"path"</span><span class="p">:</span> <span class="s2">"/path/to/your/file.json"</span>
	<span class="p">},</span>
	<span class="p">{</span>
	<span class="nt">"container"</span><span class="p">:</span> <span class="s2">"anothercontainer"</span><span class="p">,</span>
	<span class="nt">"path"</span><span class="p">:</span> <span class="s2">"/another/path.json"</span>
	<span class="p">}</span>
	<span class="p">]</span>
	<span class="p">}</span>
	</code></pre></div>
	<p>This firehose provides caching and prefetching features. In IndexTask, a firehose can be read twice if intervals or
	shardSpecs are not specified, and, in this case, caching can be useful. Prefetching is preferred when direct scan of objects is slow.</p>

	<table><thead>
	<tr>
	<th>property</th>
	<th>description</th>
	<th>default</th>
	<th>required?</th>
	</tr>
	</thead><tbody>
	<tr>
	<td>type</td>
	<td>This should be <code>static-azure-blobstore</code>.</td>
	<td>N/A</td>
	<td>yes</td>
	</tr>
	<tr>
	<td>blobs</td>
	<td>JSON array of <a href="https://msdn.microsoft.com/en-us/library/azure/ee691964.aspx">Azure blobs</a>.</td>
	<td>N/A</td>
	<td>yes</td>
	</tr>
	<tr>
	<td>maxCacheCapacityBytes</td>
	<td>Maximum size of the cache space in bytes. 0 means disabling cache. Cached files are not removed until the ingestion task completes.</td>
	<td>1073741824</td>
	<td>no</td>
	</tr>
	<tr>
	<td>maxFetchCapacityBytes</td>
	<td>Maximum size of the fetch space in bytes. 0 means disabling prefetch. Prefetched files are removed immediately once they are read.</td>
	<td>1073741824</td>
	<td>no</td>
	</tr>
	<tr>
	<td>prefetchTriggerBytes</td>
	<td>Threshold to trigger prefetching Azure objects.</td>
	<td>maxFetchCapacityBytes / 2</td>
	<td>no</td>
	</tr>
	<tr>
	<td>fetchTimeout</td>
	<td>Timeout for fetching an Azure object.</td>
	<td>60000</td>
	<td>no</td>
	</tr>
	<tr>
	<td>maxFetchRetry</td>
	<td>Maximum retry for fetching an Azure object.</td>
	<td>3</td>
	<td>no</td>
	</tr>
	</tbody></table>

	<p>Azure Blobs:</p>

	<table><thead>
	<tr>
	<th>property</th>
	<th>description</th>
	<th>default</th>
	<th>required?</th>
	</tr>
	</thead><tbody>
	<tr>
	<td>container</td>
	<td>Name of the azure <a href="https://azure.microsoft.com/en-us/documentation/articles/storage-dotnet-how-to-use-blobs/#create-a-container">container</a></td>
	<td>N/A</td>
	<td>yes</td>
	</tr>
	<tr>
	<td>path</td>
	<td>The path where data is located.</td>
	<td>N/A</td>
	<td>yes</td>
	</tr>
	</tbody></table>

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