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class="vp-toc-header">此页内容<button type="button" class="print-button" title="打印"><svg xmlns="http://www.w3.org/2000/svg" class="icon print-icon" viewBox="0 0 1024 1024" fill="currentColor" aria-label="print icon"><path d="M819.2 364.8h-44.8V128c0-17.067-14.933-32-32-32H281.6c-17.067 0-32 14.933-32 32v236.8h-44.8C145.067 364.8 96 413.867 96 473.6v192c0 59.733 49.067 108.8 108.8 108.8h44.8V896c0 17.067 14.933 32 32 32h460.8c17.067 0 32-14.933 32-32V774.4h44.8c59.733 0 108.8-49.067 108.8-108.8v-192c0-59.733-49.067-108.8-108.8-108.8zM313.6 160h396.8v204.8H313.6V160zm396.8 704H313.6V620.8h396.8V864zM864 665.6c0 25.6-19.2 44.8-44.8 44.8h-44.8V588.8c0-17.067-14.933-32-32-32H281.6c-17.067 0-32 14.933-32 32v121.6h-44.8c-25.6 0-44.8-19.2-44.8-44.8v-192c0-25.6 19.2-44.8 44.8-44.8h614.4c25.6 0 44.8 19.2 44.8 44.8v192z"></path></svg></button><div class="arrow end"></div></div><div class="vp-toc-wrapper"><ul class="vp-toc-list"><!--[--><li class="vp-toc-item"><a class="route-link vp-toc-link level2" href="#连接方法">连接方法</a></li><!----><!--]--><!--[--><li class="vp-toc-item"><a class="route-link vp-toc-link level2" href="#软件特性及用法">软件特性及用法</a></li><li><ul class="vp-toc-list"><!--[--><li class="vp-toc-item"><a class="route-link vp-toc-link level3" href="#创建同步任务">创建同步任务</a></li><!----><!--]--><!--[--><li class="vp-toc-item"><a class="route-link vp-toc-link level3" href="#数据收集">数据收集</a></li><!----><!--]--><!--[--><li class="vp-toc-item"><a class="route-link vp-toc-link level3" href="#数据处理">数据处理</a></li><!----><!--]--><!--[--><li class="vp-toc-item"><a class="route-link vp-toc-link level3" href="#数据发送">数据发送</a></li><!----><!--]--><!--[--><li class="vp-toc-item"><a class="route-link vp-toc-link level3" href="#rest-api">REST api</a></li><!----><!--]--><!--[--><li class="vp-toc-item"><a class="route-link vp-toc-link level3" href="#开启同步任务">开启同步任务</a></li><!----><!--]--><!--[--><li class="vp-toc-item"><a class="route-link vp-toc-link level3" href="#停止同步任务">停止同步任务</a></li><!----><!--]--><!--[--><li class="vp-toc-item"><a class="route-link vp-toc-link level3" href="#删除同步任务">删除同步任务</a></li><!----><!--]--></ul></li><!--]--></ul><div class="vp-toc-marker" style="top:-1.7rem;"></div></div><!--[--><!----><!--]--></aside></div><!--[--><!----><!--]--><div class="theme-hope-content"><h1 id="数据同步软件" tabindex="-1"><a class="header-anchor" href="#数据同步软件"><span>数据同步软件</span></a></h1><p>除了内置的 Pipe 同步功能之外，IoTDB 还提供外置的数据同步软件。该软件由 Java 编写，因此具有跨平台性，在 Windows 和 Linux 下都可以执行同步功能。该软件除 Pipe 的基础功能外，还添加了额外功能。该软件支持命令行中以 SQL 语句执行，此外还支持图形化界面。</p><h2 id="连接方法" tabindex="-1"><a class="header-anchor" href="#连接方法"><span>连接方法</span></a></h2><p>在使用数据同步软件时，首先需定位发送端集群。为允许发送端集群出于关闭状态，此处除可以通过 ip:port 定位集群，也可以给定发送端集群的 data 目录。将以下两组配置其一写入 data-sync.properties 即可：</p><ul><li>ssh_port, ssh_user, ssh_password, data_dir：用于定位数据目录位置，当 ssh 未配置时默认为本机。</li><li>user, password, dn_rpc_address, dn_rpc_port：用于定位运行中的 IoTDB 位置，user 和 password 可不填写，默认为 root。</li></ul><h2 id="软件特性及用法" tabindex="-1"><a class="header-anchor" href="#软件特性及用法"><span>软件特性及用法</span></a></h2><p>数据同步软件支持 SQL 及图形化界面的交互。其中，SQL 语句的用法与 IoTDB Pipe 的命令行用法相同。下面先介绍创建同步任务的 SQL 语句：</p><h3 id="创建同步任务" tabindex="-1"><a class="header-anchor" href="#创建同步任务"><span>创建同步任务</span></a></h3><div class="language-bash line-numbers-mode" data-ext="sh" data-title="sh"><pre class="language-bash"><code>create pipe p1 |
| with extractor <span class="token punctuation">(</span> |
| <span class="token punctuation">..</span><span class="token punctuation">..</span> |
| <span class="token punctuation">)</span> |
| with processor <span class="token punctuation">(</span> |
| <span class="token punctuation">..</span><span class="token punctuation">..</span> |
| <span class="token punctuation">)</span> |
| with connector <span class="token punctuation">(</span> |
| <span class="token punctuation">..</span><span class="token punctuation">..</span> |
| <span class="token punctuation">)</span> |
| </code></pre><div class="line-numbers" aria-hidden="true"><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div></div></div><p>其中 extractor，processor，connector 均为可自定义的插件。extractor 为数据的收集器，负责收集 IoTDB 内的特定数据；processor 为处理器，负责对收集到的数据进行过滤等处理；connector 为连接器，负责对数据进行发送。此外，with extractor， with processor 两段均可不填，不填时，extractor 与 processor 均为默认值。上述命令中（....）部分为可配置的参数，容忍无效参数，具体有效参数取决于插件实现本身。</p><p>下面将列出该软件的所有特性及其 SQL 用法。</p><h3 id="数据收集" tabindex="-1"><a class="header-anchor" href="#数据收集"><span>数据收集</span></a></h3><p>目前软件自带的 Extractor 为 iotdb-extractor，该 extractor 支持对任意前缀路径进行同步，即支持选定任意数据库，设备和时间序列。此外，还可以选择同步历史数据 / 实时数据或是两者，还支持规定历史数据的起始时间和截止时间。示例的 extractor 参数如下：</p><div class="language-bash line-numbers-mode" data-ext="sh" data-title="sh"><pre class="language-bash"><code>create pipe p1 |
| with extractor <span class="token punctuation">(</span> |
| <span class="token string">'extractor'</span><span class="token operator">=</span><span class="token string">'iotdb-extractor'</span>, |
| <span class="token string">'extractor.pattern'</span><span class="token operator">=</span><span class="token string">'root'</span>, |
| <span class="token string">'extractor.history.enable'</span><span class="token operator">=</span><span class="token string">'true'</span>, |
| <span class="token string">'extractor.history.start-time'</span><span class="token operator">=</span><span class="token string">'2023-07-03T16:49:58.845+08:00'</span>, |
| <span class="token string">'extractor.history.end-time'</span><span class="token operator">=</span><span class="token string">'2023-07-04T16:49:58.845+08:00'</span>, |
| <span class="token string">'extractor.realtime.enable'</span><span class="token operator">=</span><span class="token string">'true'</span>, |
| <span class="token string">'extractor.realtime.mode'</span><span class="token operator">=</span><span class="token string">'log'</span> |
| <span class="token punctuation">)</span> |
| with processor <span class="token punctuation">(</span> |
| <span class="token punctuation">..</span><span class="token punctuation">..</span> |
| <span class="token punctuation">)</span> |
| with connector <span class="token punctuation">(</span> |
| <span class="token punctuation">..</span><span class="token punctuation">..</span> |
| <span class="token punctuation">)</span> |
| </code></pre><div class="line-numbers" aria-hidden="true"><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div></div></div><p>其中，各参数的含义如下：</p><table><thead><tr><th>参数名</th><th>参数说明</th><th>是否必需</th></tr></thead><tbody><tr><td>extractor</td><td>通用配置，表示选用的 extractor 类型，这里是软件自带的 iotdb-extractor。</td><td>否，默认为 iotdb-extractor</td></tr><tr><td>extractor.pattern</td><td>为 iotdb-extractor 规定的特定配置，之后的参数相同。这里为选定的数据前缀路径。</td><td>否，默认为 root</td></tr><tr><td>extractor.history.enable</td><td>规定是否可以同步历史数据，取值为 true 或 false。</td><td>否，默认为 true</td></tr><tr><td>extractor.history.start-time</td><td>为历史数据的截取开始时间戳，用于截取某一时间段的数据。</td><td>否，默认为历史数据开始时间</td></tr><tr><td>extractor.history.end-time</td><td>为历史数据的截取停止时间戳，用于截取某一时间段的数据。</td><td>否，默认为历史数据结束时间</td></tr><tr><td>extractor.realtime.enable</td><td>规定是否可以同步实时数据，取值为 true 或 false</td><td>否，默认为true</td></tr><tr><td>extractor.realtime.mode</td><td>规定实时数据的同步方式，取值为 log，hybrid，file，表示基于文件，WAL或混合同步</td><td>否，默认为hybrid</td></tr></tbody></table><h3 id="数据处理" tabindex="-1"><a class="header-anchor" href="#数据处理"><span>数据处理</span></a></h3><p>此外，该软件支持对选择的数据进行处理。目前的 processor 内置了一些简单功能，例如基于某个字段取值的过滤，选择和重命名等，还可以自定义流处理算法，来对收集到的数据进行处理，例如滑动平均等。一些较为简单的功能已经封装在软件内部，而如果想要自定义复杂功能，可以编写相关的类作为数据的处理插件。</p><h4 id="无操作" tabindex="-1"><a class="header-anchor" href="#无操作"><span>无操作</span></a></h4><p>无操作时，使用 do-nothing-processor 即可。示例的 processor 参数如下：</p><div class="language-bash line-numbers-mode" data-ext="sh" data-title="sh"><pre class="language-bash"><code>create pipe p1 |
| with extractor <span class="token punctuation">(</span> |
| <span class="token punctuation">..</span><span class="token punctuation">..</span> |
| <span class="token punctuation">)</span> |
| with processor <span class="token punctuation">(</span> |
| <span class="token string">'processor'</span><span class="token operator">=</span><span class="token string">'do-nothing-processor'</span> |
| <span class="token punctuation">)</span> |
| with connector <span class="token punctuation">(</span> |
| <span class="token punctuation">..</span><span class="token punctuation">..</span> |
| <span class="token punctuation">)</span> |
| </code></pre><div class="line-numbers" aria-hidden="true"><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div></div></div><p>与上述相似，此处的 processor 为通用配置，表示选用的 processor 类型。该配置非必选项，不填时即默认为 do-nothing-processor。</p><h4 id="取值过滤及选择" tabindex="-1"><a class="header-anchor" href="#取值过滤及选择"><span>取值过滤及选择</span></a></h4><p>使用自带的取值过滤 processor 可以根据 IoTDB 点的取值进行过滤。示例的 processor 参数如下：</p><div class="language-bash line-numbers-mode" data-ext="sh" data-title="sh"><pre class="language-bash"><code>create pipe p1 |
| with extractor <span class="token punctuation">(</span> |
| <span class="token punctuation">..</span><span class="token punctuation">..</span> |
| <span class="token punctuation">)</span> |
| with processor <span class="token punctuation">(</span> |
| <span class="token string">'processor'</span><span class="token operator">=</span><span class="token string">'filter-processor'</span>, |
| <span class="token string">'processor.include.condition.type'</span><span class="token operator">=</span><span class="token string">'double'</span>, |
| <span class="token string">'processor.include.condition'</span><span class="token operator">=</span><span class="token string">'>1'</span>, |
| <span class="token string">'processor.exclude.condition.type'</span><span class="token operator">=</span><span class="token string">'double'</span>, |
| <span class="token string">'processor.exclude.condition'</span><span class="token operator">=</span><span class="token string">'>=2'</span> |
| <span class="token punctuation">)</span> |
| with connector <span class="token punctuation">(</span> |
| <span class="token punctuation">..</span><span class="token punctuation">..</span> |
| <span class="token punctuation">)</span> |
| </code></pre><div class="line-numbers" aria-hidden="true"><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div></div></div><p>此处的 processor.include.condition 为选择某个取值的条件，processor.exclude.condition 为过滤某个取值的条件，二者必填其一。此处的参数表示选取收集的数据中，类型为 double 且大于 1 小于 2 的数据。</p><h4 id="取值重写" tabindex="-1"><a class="header-anchor" href="#取值重写"><span>取值重写</span></a></h4><p>使用取值重写 processor 可以根据 IoTDB 点的取值进行改写。processor 参数如下：</p><div class="language-bash line-numbers-mode" data-ext="sh" data-title="sh"><pre class="language-bash"><code>create pipe p1 |
| with extractor <span class="token punctuation">(</span> |
| <span class="token punctuation">..</span><span class="token punctuation">..</span> |
| <span class="token punctuation">)</span> |
| with processor <span class="token punctuation">(</span> |
| <span class="token string">'processor'</span><span class="token operator">=</span><span class="token string">'rewrite-processor'</span>, |
| <span class="token string">'processor.rewrite.condition.type'</span><span class="token operator">=</span><span class="token string">'double'</span>, |
| <span class="token string">'processor.rewrite.condition'</span><span class="token operator">=</span><span class="token string">'>1'</span>, |
| <span class="token string">'processor.rewrite.newValue'</span><span class="token operator">=</span><span class="token string">'1'</span> |
| <span class="token punctuation">)</span> |
| with connector <span class="token punctuation">(</span> |
| <span class="token punctuation">..</span><span class="token punctuation">..</span> |
| <span class="token punctuation">)</span> |
| </code></pre><div class="line-numbers" aria-hidden="true"><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div></div></div><p>此处的 processor.rewrite.condition 表示进行重写的判断条件，必填；processor.rewrite.newValue 表示进行重写的新值，同样必填。此处的参数表示将收集的数据中，类型为 double 且值大于 1 的数据改为 1，其他数据不变。</p><h4 id="字段重命名" tabindex="-1"><a class="header-anchor" href="#字段重命名"><span>字段重命名</span></a></h4><p>除了取值重写的功能之外，软件还支持对字段的重命名功能。该功能的参数如下：</p><div class="language-bash line-numbers-mode" data-ext="sh" data-title="sh"><pre class="language-bash"><code>create pipe p1 |
| with extractor <span class="token punctuation">(</span> |
| <span class="token punctuation">..</span><span class="token punctuation">..</span> |
| <span class="token punctuation">)</span> |
| with processor <span class="token punctuation">(</span> |
| <span class="token string">'processor'</span><span class="token operator">=</span><span class="token string">'rename-processor'</span>, |
| <span class="token string">'processor.rename.oldPattern'</span><span class="token operator">=</span><span class="token string">'root.testpipe.d0'</span>, |
| <span class="token string">'processor.rename.newPattern'</span><span class="token operator">=</span><span class="token string">'root.receive.d1'</span> |
| <span class="token punctuation">)</span> |
| with connector <span class="token punctuation">(</span> |
| <span class="token punctuation">..</span><span class="token punctuation">..</span> |
| <span class="token punctuation">)</span> |
| </code></pre><div class="line-numbers" aria-hidden="true"><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div></div></div><p>此处的 processor.rename.oldPattern 表示被重命名的序列，processor.rename.newPattern 表示序列的新名称。两者均为必填。</p><h3 id="数据发送" tabindex="-1"><a class="header-anchor" href="#数据发送"><span>数据发送</span></a></h3><p>数据同步软件提供了内置的多种 connector，这些 connector 的类型如下：</p><h4 id="thrift-connector" tabindex="-1"><a class="header-anchor" href="#thrift-connector"><span>Thrift connector</span></a></h4><p>支持使用 Thrift 方式，将数据同步到 IoTDB 的接收端。采用 Thrift 方式的同步参数如下：</p><ul><li>iotdb-thrift-connector</li><li>iotdb-thrift-connector-v1</li><li>iotdb-thrift-connector-v2</li></ul><p>其中，iotdb-thrift-connector-v1 会选择某个接收端地址进行发送，通常在单个地址时效率较高；iotdb-thrift-connector-v2 会并发在所有接收端地址进行发送，在多个地址时效率较高。<br> iotdb-thrift-connector 会选择当前版本默认的 connector 进行发送，目前为 iotdb-thrift-connector-v1。以上 connector 公用相关参数，其取值示例如下：</p><div class="language-bash line-numbers-mode" data-ext="sh" data-title="sh"><pre class="language-bash"><code>create pipe p1 |
| with extractor <span class="token punctuation">(</span> |
| <span class="token punctuation">..</span><span class="token punctuation">..</span> |
| <span class="token punctuation">)</span> |
| with processor <span class="token punctuation">(</span> |
| <span class="token punctuation">..</span><span class="token punctuation">..</span> |
| <span class="token punctuation">)</span> |
| with connector <span class="token punctuation">(</span> |
| <span class="token string">'connector'</span><span class="token operator">=</span><span class="token string">'iotdb-thrift-connector'</span>, |
| <span class="token string">'connector.ip'</span><span class="token operator">=</span><span class="token string">'xxx.xxx.xxx.xxx'</span>, |
| <span class="token string">'connector.port'</span><span class="token operator">=</span><span class="token string">'xxxx'</span>, |
| <span class="token string">'connector.node-urls'</span><span class="token operator">=</span><span class="token string">'xxx.xxx.xxx.xxx:xxxx,yyy.yyy.yyy.yyy:yyyy'</span>, |
| <span class="token string">'connector.compression'</span><span class="token operator">=</span><span class="token string">'zstd'</span> |
| <span class="token punctuation">)</span> |
| </code></pre><div class="line-numbers" aria-hidden="true"><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div></div></div><table><thead><tr><th>参数名</th><th>参数说明</th><th>是否必需</th></tr></thead><tbody><tr><td>connector</td><td>通用配置，表示选用的 connector 类型，这里是 iotdb-thrift-connector， iotdb-thrift-connector-v1 或 iotdb-thrift-connector-v2。</td><td>否，默认为iotdb-thrift-connector</td></tr><tr><td>connector.ip</td><td>表示接收端选定 IoTDB 的 IP 地址</td><td>与 node-urls 必选其一</td></tr><tr><td>connector.port</td><td>表示接收端选定 IoTDB 的端口</td><td>与 node-urls 必选其一</td></tr><tr><td>connector.node-urls</td><td>表示接收端集群的地址列表，与上面的 ip/port 可以共存</td><td>与 ip/port 必选其一</td></tr><tr><td>connector.compression</td><td>表示发送时 tsFile 使用的二次压缩算法</td><td>否，默认为不压缩</td></tr></tbody></table><h4 id="influxdb-connector" tabindex="-1"><a class="header-anchor" href="#influxdb-connector"><span>InfluxDB connector</span></a></h4><p>此外，使用 InfluxDB connector，还可以将上述经过筛选、处理的数据同步到 InfluxDB。该 Connector 的名称为 influxdb-connector。目前仅支持单点传输。参数取值示例如下：</p><div class="language-bash line-numbers-mode" data-ext="sh" data-title="sh"><pre class="language-bash"><code>create pipe p1 |
| with extractor <span class="token punctuation">(</span> |
| <span class="token punctuation">..</span><span class="token punctuation">..</span> |
| <span class="token punctuation">)</span> |
| with processor <span class="token punctuation">(</span> |
| <span class="token punctuation">..</span><span class="token punctuation">..</span> |
| <span class="token punctuation">)</span> |
| with connector <span class="token punctuation">(</span> |
| <span class="token string">'connector'</span><span class="token operator">=</span><span class="token string">'influxdb-connector'</span>, |
| <span class="token string">'connector.ip'</span><span class="token operator">=</span><span class="token string">'xxx.xxx.xxx.xxx'</span>, |
| <span class="token string">'connector.port'</span><span class="token operator">=</span><span class="token string">'xxxx'</span> |
| <span class="token punctuation">)</span> |
| </code></pre><div class="line-numbers" aria-hidden="true"><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div></div></div><p>这里的参数名和参数说明同上，但 ip 和 port 此时为必选项。</p><h4 id="local-file-backup-connector" tabindex="-1"><a class="header-anchor" href="#local-file-backup-connector"><span>Local file backup connector</span></a></h4><p>Local file backup connector 能够将 IoTDB 内部的 tsFile 文件备份至本地。此时的参数为：</p><div class="language-bash line-numbers-mode" data-ext="sh" data-title="sh"><pre class="language-bash"><code>create pipe p1 |
| with extractor <span class="token punctuation">(</span> |
| <span class="token punctuation">..</span><span class="token punctuation">..</span> |
| <span class="token punctuation">)</span> |
| with processor <span class="token punctuation">(</span> |
| <span class="token punctuation">..</span><span class="token punctuation">..</span> |
| <span class="token punctuation">)</span> |
| with connector <span class="token punctuation">(</span> |
| <span class="token string">'connector'</span><span class="token operator">=</span><span class="token string">'local-file-backup-connector'</span>, |
| <span class="token string">'connector.path'</span><span class="token operator">=</span><span class="token string">'/usr/local'</span>, |
| <span class="token string">'connector.compression'</span><span class="token operator">=</span><span class="token string">'zstd'</span> |
| <span class="token punctuation">)</span> |
| </code></pre><div class="line-numbers" aria-hidden="true"><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div></div></div><p>这里的 connector.path 指要备份的文件目录，必填。connector.compression 为二次压缩方式，可选，非空时将根据 compression 的类型对打包出的 tsFile 进行二次压缩。</p><p>除了以上三类 connector 外，用户还可以自定义 connector 来实现数据的自定义发送。理论上，可以将数据以任意压缩格式，通过任何方法，发送至任何端口。</p><h3 id="rest-api" tabindex="-1"><a class="header-anchor" href="#rest-api"><span>REST api</span></a></h3><p>与 IoTDB 自带的 Pipe 功能相同，该软件也提供了使用 REST 接口的访问方式，能够查看同步任务的启停和执行状态等。下面是一个示例的 REST 接口访问方法：</p><div class="language-bash line-numbers-mode" data-ext="sh" data-title="sh"><pre class="language-bash"><code><span class="token function">curl</span> <span class="token parameter variable">-H</span> <span class="token string">"Content-Type:application/json"</span> <span class="token parameter variable">-H</span> <span class="token string">"Authorization:Basic cm9vdDpyb290"</span> <span class="token parameter variable">-X</span> POST <span class="token parameter variable">--data</span> <span class="token string">'{"sql":"show pipes"}'</span> http://127.0.0.1:18080/rest/v2/query |
| </code></pre><div class="line-numbers" aria-hidden="true"><div class="line-number"></div></div></div><p>其中示例中 Authorization: Basic cm9vdDpyb2901 字符串为用户名 root，密码 root 对应的 Basic 鉴权 Header 格式。用户名、密码对应的完整鉴权格式为 base64.encode(username + ':' + password)，如果手动设置了用户名及密码，需要按照该格式来编写鉴权字符串。<br> SQL 中的 show pipes 与 IoTDB 中的对应格式相同，18080 则为配置的 REST 端口。</p><p>此处的 REST api 也提供了配置文件，在项目根目录下的 data-sync.properties 中。其中能够对 REST 服务是否启用，用户名，密码及 REST 对外的端口进行配置。</p><h3 id="开启同步任务" tabindex="-1"><a class="header-anchor" href="#开启同步任务"><span>开启同步任务</span></a></h3><p>开启同步任务的 SQL 同样与 IoTDB 内置 Pipe 的定义方式相同，如下：</p><div class="language-bash line-numbers-mode" data-ext="sh" data-title="sh"><pre class="language-bash"><code>start pipe p1 |
| </code></pre><div class="line-numbers" aria-hidden="true"><div class="line-number"></div></div></div><h3 id="停止同步任务" tabindex="-1"><a class="header-anchor" href="#停止同步任务"><span>停止同步任务</span></a></h3><div class="language-bash line-numbers-mode" data-ext="sh" data-title="sh"><pre class="language-bash"><code>stop pipe p1 |
| </code></pre><div class="line-numbers" aria-hidden="true"><div class="line-number"></div></div></div><h3 id="删除同步任务" tabindex="-1"><a class="header-anchor" href="#删除同步任务"><span>删除同步任务</span></a></h3><div class="language-bash line-numbers-mode" data-ext="sh" data-title="sh"><pre class="language-bash"><code>drop pipe p1 |
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