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| <div class="section" id="module-airflow.hooks.webhdfs_hook"> |
| <span id="airflow-hooks-webhdfs-hook"></span><h1><a class="reference internal" href="#module-airflow.hooks.webhdfs_hook" title="airflow.hooks.webhdfs_hook"><code class="xref py py-mod docutils literal notranslate"><span class="pre">airflow.hooks.webhdfs_hook</span></code></a><a class="headerlink" href="#module-airflow.hooks.webhdfs_hook" title="Permalink to this headline">¶</a></h1> |
| <div class="section" id="module-contents"> |
| <h2>Module Contents<a class="headerlink" href="#module-contents" title="Permalink to this headline">¶</a></h2> |
| <dl class="data"> |
| <dt id="airflow.hooks.webhdfs_hook._kerberos_security_mode"> |
| <code class="descclassname">airflow.hooks.webhdfs_hook.</code><code class="descname">_kerberos_security_mode</code><a class="reference internal" href="../../../../_modules/airflow/hooks/webhdfs_hook.html#_kerberos_security_mode"><span class="viewcode-link">[source]</span></a><a class="headerlink" href="#airflow.hooks.webhdfs_hook._kerberos_security_mode" title="Permalink to this definition">¶</a></dt> |
| <dd></dd></dl> |
| |
| <dl class="data"> |
| <dt id="airflow.hooks.webhdfs_hook.log"> |
| <code class="descclassname">airflow.hooks.webhdfs_hook.</code><code class="descname">log</code><a class="reference internal" href="../../../../_modules/airflow/hooks/webhdfs_hook.html#log"><span class="viewcode-link">[source]</span></a><a class="headerlink" href="#airflow.hooks.webhdfs_hook.log" title="Permalink to this definition">¶</a></dt> |
| <dd></dd></dl> |
| |
| <dl class="exception"> |
| <dt id="airflow.hooks.webhdfs_hook.AirflowWebHDFSHookException"> |
| <em class="property">exception </em><code class="descclassname">airflow.hooks.webhdfs_hook.</code><code class="descname">AirflowWebHDFSHookException</code><a class="reference internal" href="../../../../_modules/airflow/hooks/webhdfs_hook.html#AirflowWebHDFSHookException"><span class="viewcode-link">[source]</span></a><a class="headerlink" href="#airflow.hooks.webhdfs_hook.AirflowWebHDFSHookException" title="Permalink to this definition">¶</a></dt> |
| <dd><p>Bases:<code class="xref py py-class docutils literal notranslate"><span class="pre">airflow.exceptions.AirflowException</span></code></p> |
| </dd></dl> |
| |
| <dl class="class"> |
| <dt id="airflow.hooks.webhdfs_hook.WebHDFSHook"> |
| <em class="property">class </em><code class="descclassname">airflow.hooks.webhdfs_hook.</code><code class="descname">WebHDFSHook</code><span class="sig-paren">(</span><em>webhdfs_conn_id='webhdfs_default'</em>, <em>proxy_user=None</em><span class="sig-paren">)</span><a class="reference internal" href="../../../../_modules/airflow/hooks/webhdfs_hook.html#WebHDFSHook"><span class="viewcode-link">[source]</span></a><a class="headerlink" href="#airflow.hooks.webhdfs_hook.WebHDFSHook" title="Permalink to this definition">¶</a></dt> |
| <dd><p>Bases:<a class="reference internal" href="../base_hook/index.html#airflow.hooks.base_hook.BaseHook" title="airflow.hooks.base_hook.BaseHook"><code class="xref py py-class docutils literal notranslate"><span class="pre">airflow.hooks.base_hook.BaseHook</span></code></a></p> |
| <p>Interact with HDFS. This class is a wrapper around the hdfscli library.</p> |
| <dl class="method"> |
| <dt id="airflow.hooks.webhdfs_hook.WebHDFSHook.get_conn"> |
| <code class="descname">get_conn</code><span class="sig-paren">(</span><em>self</em><span class="sig-paren">)</span><a class="reference internal" href="../../../../_modules/airflow/hooks/webhdfs_hook.html#WebHDFSHook.get_conn"><span class="viewcode-link">[source]</span></a><a class="headerlink" href="#airflow.hooks.webhdfs_hook.WebHDFSHook.get_conn" title="Permalink to this definition">¶</a></dt> |
| <dd><p>Returns a hdfscli InsecureClient object.</p> |
| </dd></dl> |
| |
| <dl class="method"> |
| <dt id="airflow.hooks.webhdfs_hook.WebHDFSHook.check_for_path"> |
| <code class="descname">check_for_path</code><span class="sig-paren">(</span><em>self</em>, <em>hdfs_path</em><span class="sig-paren">)</span><a class="reference internal" href="../../../../_modules/airflow/hooks/webhdfs_hook.html#WebHDFSHook.check_for_path"><span class="viewcode-link">[source]</span></a><a class="headerlink" href="#airflow.hooks.webhdfs_hook.WebHDFSHook.check_for_path" title="Permalink to this definition">¶</a></dt> |
| <dd><p>Check for the existence of a path in HDFS by querying FileStatus.</p> |
| </dd></dl> |
| |
| <dl class="method"> |
| <dt id="airflow.hooks.webhdfs_hook.WebHDFSHook.load_file"> |
| <code class="descname">load_file</code><span class="sig-paren">(</span><em>self</em>, <em>source</em>, <em>destination</em>, <em>overwrite=True</em>, <em>parallelism=1</em>, <em>**kwargs</em><span class="sig-paren">)</span><a class="reference internal" href="../../../../_modules/airflow/hooks/webhdfs_hook.html#WebHDFSHook.load_file"><span class="viewcode-link">[source]</span></a><a class="headerlink" href="#airflow.hooks.webhdfs_hook.WebHDFSHook.load_file" title="Permalink to this definition">¶</a></dt> |
| <dd><p>Uploads a file to HDFS</p> |
| <dl class="field-list simple"> |
| <dt class="field-odd">Parameters</dt> |
| <dd class="field-odd"><ul class="simple"> |
| <li><p><strong>source</strong> (<a class="reference external" href="https://docs.python.org/3/library/stdtypes.html#str" title="(in Python v3.7)"><em>str</em></a>) – Local path to file or folder. If a folder, all the files |
| inside of it will be uploaded (note that this implies that folders empty |
| of files will not be created remotely).</p></li> |
| <li><p><strong>destination</strong> (<a class="reference external" href="https://docs.python.org/3/library/stdtypes.html#str" title="(in Python v3.7)"><em>str</em></a>) – PTarget HDFS path. If it already exists and is a |
| directory, files will be uploaded inside.</p></li> |
| <li><p><strong>overwrite</strong> (<a class="reference external" href="https://docs.python.org/3/library/functions.html#bool" title="(in Python v3.7)"><em>bool</em></a>) – Overwrite any existing file or directory.</p></li> |
| <li><p><strong>parallelism</strong> (<a class="reference external" href="https://docs.python.org/3/library/functions.html#int" title="(in Python v3.7)"><em>int</em></a>) – Number of threads to use for parallelization. A value of |
| <cite>0</cite> (or negative) uses as many threads as there are files.</p></li> |
| <li><p><strong>**kwargs</strong> – Keyword arguments forwarded to <code class="xref py py-meth docutils literal notranslate"><span class="pre">upload()</span></code>.</p></li> |
| </ul> |
| </dd> |
| </dl> |
| </dd></dl> |
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