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internal" href="#">Hostname Resolver Transformation</a></li> <li class="toctree-l1"><a class="reference internal" href="changelog.html">更新履歴</a></li> </ul> </div> </div> </nav> <section data-toggle="wy-nav-shift" class="wy-nav-content-wrap" > <nav class="wy-nav-top" role="navigation" aria-label="top navigation" > <i data-toggle="wy-nav-top"> <svg width="24px" height="24px" viewBox="0 0 24 24" version="1.1" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" > <g id="Page-1" stroke="none" stroke-width="1" fill="none" fill-rule="evenodd" > <polygon id="Line" fill="#a7a7a8" points="3 7 21 7 21 5 3 5" ></polygon> <polygon id="Line" fill="#a7a7a8" points="3 13 21 13 21 11 3 11" ></polygon> <polygon id="Line" fill="#a7a7a8" points="3 19 21 19 21 17 3 17" ></polygon> </g> </svg> </i> <a href="http://confluent.io" ><img class="logo" src="https://assets.confluent.io/m/1661ef5e4ff82d3d/original/20200122-PNG-web-dev-logo-denim.png" /></a> </nav> <div class="wy-nav-container"> <div class="wy-nav-content"> <div class="rst-content"> <div class="rst-inner"> <div role="main" class="document" itemscope="itemscope" itemtype="http://schema.org/Article" > <div itemprop="articleBody"> <div class="section" id="hostname-resolver-transformation"> <h1>Hostname Resolver Transformation<a class="headerlink" href="#hostname-resolver-transformation" title="このヘッドラインへのパーマリンク">¶</a></h1> <p>IP アドレスとしての Apache Kafka® ソースレコードの <code class="docutils literal notranslate"><span class="pre">host</span></code> フィールドの値を、その IP アドレスを解決したホスト名でキー更新することは多くの場合有用です。これは <code class="docutils literal notranslate"><span class="pre">Hostname</span> <span class="pre">Resolver</span> <span class="pre">Transformation</span></code> を使用すると簡単です。この変換は、DNS 逆引き参照を実行して、IP アドレスをホスト名に置き換えます。たとえば、 <cite>127.0.0.1</cite> はほとんどのマシンでは <cite>localhost</cite> と置き換えられます。</p> <p>例として、コネクターの構成に以下の行を含めることで、変換を使用します。</p> <div class="highlight-properties notranslate"><div class="highlight"><pre><span></span><span class="na">transforms</span><span class="o">=</span><span class="s">myHostnameTransformName</span> <span class="na">transforms.hostname.type</span><span class="o">=</span><span class="s">io.confluent.connect.syslog.HostnameResolverTransformation</span> </pre></div> </div> <div class="section" id="configuration-options"> <h2>構成オプション<a class="headerlink" href="#configuration-options" title="このヘッドラインへのパーマリンク">¶</a></h2> <dl class="docutils"> <dt><code class="docutils literal notranslate"><span class="pre">field.name</span></code></dt> <dd><p class="first">リモートホストの IP アドレスを含むフィールドの名前。</p> <ul class="last simple"> <li>型: string</li> <li>デフォルト: remoteAddress</li> <li>重要度: 中</li> </ul> </dd> <dt><code class="docutils literal notranslate"><span class="pre">dns.cache.stats.secs</span></code></dt> <dd><p class="first">DNS キャッシュのキャッシュ統計をダンプする時間（秒）。</p> <ul class="last simple"> <li>型: int</li> <li>デフォルト: 300</li> <li>指定可能な値: [1,…]</li> <li>重要度: 低</li> </ul> </dd> <dt><code class="docutils literal notranslate"><span class="pre">dns.cache.ttl.secs</span></code></dt> <dd><p class="first">DNS エントリをキャッシュする時間（秒）。</p> <ul class="last simple"> <li>型: int</li> <li>デフォルト: 300</li> <li>指定可能な値: [1,…]</li> <li>重要度: 低</li> </ul> </dd> <dt><code class="docutils literal notranslate"><span class="pre">dns.query.timeout.secs</span></code></dt> <dd><p class="first">クエリがタイムアウトするまでの時間（秒）。</p> <ul class="last simple"> <li>型: int</li> <li>デフォルト: 15</li> <li>指定可能な値: [1,…]</li> <li>重要度: 低</li> </ul> </dd> </dl> </div> </div> </div> </div> <footer> <p> © Copyright <script> document.write( new Date().getFullYear() ); </script> , Confluent, Inc. <a href="https://www.confluent.io/confluent-privacy-statement/" >プライバシーポリシー > | <a href="https://www.confluent.io/terms-of-use/" >利用条件 > Apache、Apache Kafka、Kafka、および Kafka のロゴは <a href="http://www.apache.org/" >Apache ソフトウェア財団 >の商標です。 その他の商標、サービスマーク、および著作権はすべて、各所有者に所有権があります。 </p> <p class="footer-feedback-link"> <a 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