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-->1.11.0<!-- -->).</div></div><div class="docItemContainer_Djhp"><article><nav class="theme-doc-breadcrumbs breadcrumbsContainer_Z_bl" aria-label="页面路径"><ul class="breadcrumbs" itemscope="" itemtype="https://schema.org/BreadcrumbList"><li class="breadcrumbs__item"><a aria-label="主页面" class="breadcrumbs__link" href="/zh-CN/"><svg viewBox="0 0 24 24" class="breadcrumbHomeIcon_YNFT"><path d="M10 19v-5h4v5c0 .55.45 1 1 1h3c.55 0 1-.45 1-1v-7h1.7c.46 0 .68-.57.33-.87L12.67 3.6c-.38-.34-.96-.34-1.34 0l-8.36 7.53c-.34.3-.13.87.33.87H5v7c0 .55.45 1 1 1h3c.55 0 1-.45 1-1z" fill="currentColor"></path></svg></a></li><li class="breadcrumbs__item"><span class="breadcrumbs__link">数据节点</span><meta itemprop="position" content="1"></li><li class="breadcrumbs__item"><span class="breadcrumbs__link">Load Nodes</span><meta itemprop="position" content="2"></li><li itemscope="" itemprop="itemListElement" itemtype="https://schema.org/ListItem" class="breadcrumbs__item breadcrumbs__item--active"><span class="breadcrumbs__link" itemprop="name">Elasticsearch</span><meta itemprop="position" content="3"></li></ul></nav><span class="theme-doc-version-badge badge badge--secondary">版本：1.8.0</span><div class="tocCollapsible_ETCw theme-doc-toc-mobile tocMobile_ITEo"><button type="button" class="clean-btn tocCollapsibleButton_TO0P">On this page</button></div><div class="theme-doc-markdown markdown"><header><h1>Elasticsearch</h1></header><h2 class="anchor anchorWithStickyNavbar_LWe7" id="概览">概览<a href="#概览" class="hash-link" aria-label="Direct link to heading" title="Direct link to heading"></a></h2><p>Elasticsearch Load 节点允许将数据写入到 Elasticsearch 引擎的索引中。本文档描述运行 SQL 查询时如何设置 Elasticsearch Load 节点。</p><p>连接器可以工作在 Upsert 模式，使用 DDL 中定义的主键与外部系统交换 UPDATE/DELETE 消息。</p><p>如果 DDL 中没有定义主键，那么连接器只能工作在 Append 模式，只能与外部系统交换 INSERT 消息。</p><h2 class="anchor anchorWithStickyNavbar_LWe7" id="支持的版本">支持的版本<a href="#支持的版本" class="hash-link" aria-label="Direct link to heading" title="Direct link to heading"></a></h2><table><thead><tr><th>Load 节点</th><th>版本</th></tr></thead><tbody><tr><td><a href="/zh-CN/docs/1.8.0/data_node/load_node/elasticsearch">elasticsearch</a></td><td><a href="https://www.elastic.co/" target="_blank" rel="noopener noreferrer">Elasticsearch</a>: 5.x, 6.x, 7.x</td></tr></tbody></table><h3 class="anchor anchorWithStickyNavbar_LWe7" id="依赖">依赖<a href="#依赖" class="hash-link" aria-label="Direct link to heading" title="Direct link to heading"></a></h3><p>为了设置 Elasticsearch Load 节点，下表提供了使用构建自动化工具（例如 Maven 或 SBT）和带有 Sort Connectors JAR 包的 SQL 客户端的两个项目的依赖关系信息。</p><ul><li>Elasticsearch 6</li></ul><div class="codeBlockContainer_Ckt0 theme-code-block" style="--prism-color:#F8F8F2;--prism-background-color:#282A36"><div class="codeBlockContent_biex"><pre tabindex="0" class="prism-code language-text codeBlock_bY9V thin-scrollbar"><code class="codeBlockLines_e6Vv"><span class="token-line" style="color:#F8F8F2"><span class="token plain"><dependency></span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain"> <groupId>org.apache.inlong</groupId></span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain"> <artifactId>sort-connector-elasticsearch6</artifactId></span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain"> <version>1.8.0</version></span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain"></dependency></span><br></span></code></pre><div class="buttonGroup__atx"><button type="button" aria-label="Copy code to clipboard" title="Copy" class="clean-btn"><span class="copyButtonIcons_eSgA" aria-hidden="true"><svg class="copyButtonIcon_y97N" viewBox="0 0 24 24"><path d="M19,21H8V7H19M19,5H8A2,2 0 0,0 6,7V21A2,2 0 0,0 8,23H19A2,2 0 0,0 21,21V7A2,2 0 0,0 19,5M16,1H4A2,2 0 0,0 2,3V17H4V3H16V1Z"></path></svg><svg class="copyButtonSuccessIcon_LjdS" viewBox="0 0 24 24"><path d="M21,7L9,19L3.5,13.5L4.91,12.09L9,16.17L19.59,5.59L21,7Z"></path></svg></span></button></div></div></div><ul><li>Elasticsearch 7</li></ul><div class="codeBlockContainer_Ckt0 theme-code-block" style="--prism-color:#F8F8F2;--prism-background-color:#282A36"><div class="codeBlockContent_biex"><pre tabindex="0" class="prism-code language-text codeBlock_bY9V thin-scrollbar"><code class="codeBlockLines_e6Vv"><span class="token-line" style="color:#F8F8F2"><span class="token plain"><dependency></span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain"> <groupId>org.apache.inlong</groupId></span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain"> <artifactId>sort-connector-elasticsearch7</artifactId></span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain"> <version>1.8.0</version></span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain"></dependency></span><br></span></code></pre><div class="buttonGroup__atx"><button type="button" aria-label="Copy code to clipboard" title="Copy" class="clean-btn"><span class="copyButtonIcons_eSgA" aria-hidden="true"><svg class="copyButtonIcon_y97N" viewBox="0 0 24 24"><path d="M19,21H8V7H19M19,5H8A2,2 0 0,0 6,7V21A2,2 0 0,0 8,23H19A2,2 0 0,0 21,21V7A2,2 0 0,0 19,5M16,1H4A2,2 0 0,0 2,3V17H4V3H16V1Z"></path></svg><svg class="copyButtonSuccessIcon_LjdS" viewBox="0 0 24 24"><path d="M21,7L9,19L3.5,13.5L4.91,12.09L9,16.17L19.59,5.59L21,7Z"></path></svg></span></button></div></div></div><h2 class="anchor anchorWithStickyNavbar_LWe7" id="如何创建一个-elasticsearch-load-节点">如何创建一个 Elasticsearch Load 节点<a href="#如何创建一个-elasticsearch-load-节点" class="hash-link" aria-label="Direct link to heading" title="Direct link to heading"></a></h2><h3 class="anchor anchorWithStickyNavbar_LWe7" id="sql-api-用法">SQL API 用法<a href="#sql-api-用法" class="hash-link" aria-label="Direct link to heading" title="Direct link to heading"></a></h3><p>下面列子展示了如何利用<code>Flink SQL</code>创建一个 Elasticsearch Load 节点: </p><div class="language-sql codeBlockContainer_Ckt0 theme-code-block" style="--prism-color:#F8F8F2;--prism-background-color:#282A36"><div class="codeBlockContent_biex"><pre tabindex="0" class="prism-code language-sql codeBlock_bY9V thin-scrollbar"><code class="codeBlockLines_e6Vv"><span class="token-line" style="color:#F8F8F2"><span class="token keyword" style="color:rgb(189, 147, 249);font-style:italic">CREATE</span><span class="token plain"> </span><span class="token keyword" style="color:rgb(189, 147, 249);font-style:italic">TABLE</span><span class="token plain"> myUserTable </span><span class="token punctuation" style="color:rgb(248, 248, 242)">(</span><span class="token plain"></span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain"> user_id STRING</span><span class="token punctuation" style="color:rgb(248, 248, 242)">,</span><span class="token plain"></span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain"> user_name STRING</span><span class="token punctuation" style="color:rgb(248, 248, 242)">,</span><span class="token plain"></span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain"> uv </span><span class="token keyword" style="color:rgb(189, 147, 249);font-style:italic">BIGINT</span><span class="token punctuation" style="color:rgb(248, 248, 242)">,</span><span class="token plain"></span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain"> pv </span><span class="token keyword" style="color:rgb(189, 147, 249);font-style:italic">BIGINT</span><span class="token punctuation" style="color:rgb(248, 248, 242)">,</span><span class="token plain"></span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain"> </span><span class="token keyword" style="color:rgb(189, 147, 249);font-style:italic">PRIMARY</span><span class="token plain"> </span><span class="token keyword" style="color:rgb(189, 147, 249);font-style:italic">KEY</span><span class="token plain"> </span><span class="token punctuation" style="color:rgb(248, 248, 242)">(</span><span class="token plain">user_id</span><span class="token punctuation" style="color:rgb(248, 248, 242)">)</span><span class="token plain"> </span><span class="token operator">NOT</span><span class="token plain"> ENFORCED</span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain"></span><span class="token punctuation" style="color:rgb(248, 248, 242)">)</span><span class="token plain"> </span><span class="token keyword" style="color:rgb(189, 147, 249);font-style:italic">WITH</span><span class="token plain"> </span><span class="token punctuation" style="color:rgb(248, 248, 242)">(</span><span class="token plain"></span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain"> </span><span class="token string" style="color:rgb(255, 121, 198)">'connector'</span><span class="token plain"> </span><span class="token operator">=</span><span class="token plain"> </span><span class="token string" style="color:rgb(255, 121, 198)">'elasticsearch-7'</span><span class="token punctuation" style="color:rgb(248, 248, 242)">,</span><span class="token plain"></span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain"> </span><span class="token string" style="color:rgb(255, 121, 198)">'hosts'</span><span class="token plain"> </span><span class="token operator">=</span><span class="token plain"> </span><span class="token string" style="color:rgb(255, 121, 198)">'http://localhost:9200'</span><span class="token punctuation" style="color:rgb(248, 248, 242)">,</span><span class="token plain"></span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain"> </span><span class="token string" style="color:rgb(255, 121, 198)">'index'</span><span class="token plain"> </span><span class="token operator">=</span><span class="token plain"> </span><span class="token string" style="color:rgb(255, 121, 198)">'users'</span><span class="token plain"></span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain"></span><span class="token punctuation" style="color:rgb(248, 248, 242)">)</span><span class="token punctuation" style="color:rgb(248, 248, 242)">;</span><br></span></code></pre><div class="buttonGroup__atx"><button type="button" aria-label="Copy code to clipboard" title="Copy" class="clean-btn"><span class="copyButtonIcons_eSgA" aria-hidden="true"><svg class="copyButtonIcon_y97N" viewBox="0 0 24 24"><path d="M19,21H8V7H19M19,5H8A2,2 0 0,0 6,7V21A2,2 0 0,0 8,23H19A2,2 0 0,0 21,21V7A2,2 0 0,0 19,5M16,1H4A2,2 0 0,0 2,3V17H4V3H16V1Z"></path></svg><svg class="copyButtonSuccessIcon_LjdS" viewBox="0 0 24 24"><path d="M21,7L9,19L3.5,13.5L4.91,12.09L9,16.17L19.59,5.59L21,7Z"></path></svg></span></button></div></div></div><h3 class="anchor anchorWithStickyNavbar_LWe7" id="inlong-dashboard-用法">InLong Dashboard 用法<a href="#inlong-dashboard-用法" class="hash-link" aria-label="Direct link to heading" title="Direct link to heading"></a></h3><p>TODO: 将在未来支持这个特性。</p><h3 class="anchor anchorWithStickyNavbar_LWe7" id="inlong-manager-client-用法">InLong Manager Client 用法<a href="#inlong-manager-client-用法" class="hash-link" aria-label="Direct link to heading" title="Direct link to heading"></a></h3><p>TODO: 将在未来支持这个特性。</p><h2 class="anchor anchorWithStickyNavbar_LWe7" id="elasticsearch-load-节点参数">Elasticsearch Load 节点参数<a href="#elasticsearch-load-节点参数" class="hash-link" aria-label="Direct link to heading" title="Direct link to heading"></a></h2><table><thead><tr><th>参数</th><th>是否必选</th><th>默认值</th><th>数据类型</th><th>描述</th></tr></thead><tbody><tr><td>connector</td><td>必选</td><td>(none)</td><td>String</td><td>指定要使用的连接器，有效值为：<br><br>- <code>elasticsearch-6</code>：连接到 Elasticsearch 5.x and 6.x 的集群。<br>- <code>elasticsearch-7</code>：连接到 Elasticsearch 7.x 及更高版本的集群。</td></tr><tr><td>hosts</td><td>必选</td><td>(none)</td><td>String</td><td>要连接到的一台或多台 Elasticsearch 主机，例如 <code>'http://host_name:9092;http://host_name:9093'</code>。</td></tr><tr><td>index</td><td>必选</td><td>(none)</td><td>String</td><td>Elasticsearch 中每条记录的索引。可以是一个静态索引（例如 <code>'myIndex'</code>）或一个动态索引（例如 <code>'index-{log_ts\|yyyy-MM-dd}'</code>）。 更多详细信息，请参见下面的<a href="#%E5%8A%A8%E6%80%81%E7%B4%A2%E5%BC%95">动态索引</a>部分。</td></tr><tr><td>document-type</td><td>6.x 版本中必选</td><td>(none)</td><td>String</td><td>Elasticsearch 文档类型。在 <code>elasticsearch-7</code> 中不再需要。</td></tr><tr><td>document-id.key-delimiter</td><td>可选</td><td>_</td><td>String</td><td>复合键的分隔符（默认为"_"），例如，指定为"$"将导致文档 ID 为"KEY1\$KEY2\$KEY3"。</td></tr><tr><td>username</td><td>可选</td><td>(none)</td><td>String</td><td>用于连接 Elasticsearch 实例的用户名。请注意，Elasticsearch 没有预绑定安全特性，但你可以通过如下<a href="https://www.elastic.co/guide/en/elasticsearch/reference/master/configuring-security.html" target="_blank" rel="noopener noreferrer">指南</a>启用它来保护 Elasticsearch 集群。</td></tr><tr><td>password</td><td>可选</td><td>(none)</td><td>String</td><td>用于连接 Elasticsearch 实例的密码。如果配置了<code>username</code>，则此选项也必须配置为非空字符串。</td></tr><tr><td>failure-handler</td><td>可选</td><td>fail</td><td>String</td><td>对 Elasticsearch 请求失败情况下的失败处理策略。有效策略为：<br><br>- <code>fail</code>：如果请求失败并因此导致作业失败，则抛出异常。<br>- <code>ignore</code>：忽略失败并放弃请求。<br>- <code>retry-rejected</code>：重新添加由于队列容量饱和而失败的请求。<br>- 自定义类名称：使用 ActionRequestFailureHandler 的子类进行失败处理。</td></tr><tr><td>sink.flush-on-checkpoint</td><td>可选</td><td>true</td><td>Boolean</td><td>是否在 checkpoint 时执行 flush。禁用后，在 checkpoint 时 sink 将不会等待所有的 pending 请求被 Elasticsearch 确认。因此，sink 不会为请求的 at-least-once 交付提供任何有力保证。</td></tr><tr><td>sink.bulk-flush.max-actions</td><td>可选</td><td>1000</td><td>Integer</td><td>每个批量请求的最大缓冲操作数。 可以设置为<code>'0'</code>来禁用它。</td></tr><tr><td>sink.bulk-flush.max-size</td><td>可选</td><td>2mb</td><td>MemorySize</td><td>每个批量请求的缓冲操作在内存中的最大值。单位必须为 MB。 可以设置为<code>'0'</code>来禁用它。</td></tr><tr><td>sink.bulk-flush.interval</td><td>可选</td><td>1s</td><td>Duration</td><td>flush 缓冲操作的间隔。 可以设置为<code>'0'</code>来禁用它。注意，<code>'sink.bulk-flush.max-size'</code>和<code>'sink.bulk-flush.max-actions'</code>都设置为<code>'0'</code>的这种 flush 间隔设置允许对缓冲操作进行完全异步处理。</td></tr><tr><td>sink.bulk-flush.backoff.strategy</td><td>可选</td><td>DISABLED</td><td>String</td><td>指定在由于临时请求错误导致任何 flush 操作失败时如何执行重试。有效策略为：<br><br>- <code>DISABLED</code>：不执行重试，即第一次请求错误后失败。<br>- <code>CONSTANT</code>：等待重试之间的回退延迟。<br>- <code>EXPONENTIAL</code>：先等待回退延迟，然后在重试之间指数递增。</td></tr><tr><td>sink.bulk-flush.backoff.max-retries</td><td>可选</td><td>8</td><td>Integer</td><td>最大回退重试次数。</td></tr><tr><td>sink.bulk-flush.backoff.delay</td><td>可选</td><td>50ms</td><td>Duration</td><td>每次回退尝试之间的延迟。对于 <code>CONSTANT</code> 回退策略，该值是每次重试之间的延迟。对于 <code>EXPONENTIAL</code> 回退策略，该值是初始的延迟。</td></tr><tr><td>connection.max-retry-timeout</td><td>可选</td><td>(none)</td><td>Duration</td><td>最大重试超时时间。</td></tr><tr><td>connection.path-prefix</td><td>可选</td><td>(none)</td><td>String</td><td>添加到每个 REST 通信中的前缀字符串，例如，<code>'/v1'</code>。</td></tr><tr><td>routing.filed-name</td><td>可选</td><td>(none)</td><td>String</td><td>使用 field 值来生成该 field 的动态路由</td></tr><tr><td>format</td><td>可选</td><td>json</td><td>String</td><td>Elasticsearch 连接器支持指定格式。该格式必须生成一个有效的 json 文档。 默认使用内置的 <code>'json'</code> 格式。更多详细信息，请参阅 <a href="https://nightlies.apache.org/flink/flink-docs-release-1.13/zh/docs/connectors/table/formats/overview/" target="_blank" rel="noopener noreferrer">JSON Format</a> 页面。</td></tr><tr><td>inlong.metric.labels</td><td>可选</td><td>(none)</td><td>String</td><td>inlong metric 的标签值，该值的构成为 groupId=<!-- -->[groupId]<!-- -->&streamId=<!-- -->[streamId]<!-- -->&nodeId=<!-- -->[nodeId]<!-- -->。</td></tr></tbody></table><h2 class="anchor anchorWithStickyNavbar_LWe7" id="特性">特性<a href="#特性" class="hash-link" aria-label="Direct link to heading" title="Direct link to heading"></a></h2><h3 class="anchor anchorWithStickyNavbar_LWe7" id="key-处理">Key 处理<a href="#key-处理" class="hash-link" aria-label="Direct link to heading" title="Direct link to heading"></a></h3><p>Elasticsearch Load 节点可以根据是否定义了主键来确定是在 Upsert 模式还是 Append 模式下工作。 |
