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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="#环境配置">环境配置</a></li><!----><!--]--><!--[--><li class="vp-toc-item"><a class="route-link vp-toc-link level2" href="#关于-version-1-0">关于 Version 1.0</a></li><li><ul class="vp-toc-list"><!--[--><li class="vp-toc-item"><a class="route-link vp-toc-link level3" href="#_1-0-版本不兼容的语法详细说明">1.0 版本不兼容的语法详细说明</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="发行版本" tabindex="-1"><a class="header-anchor" href="#发行版本"><span>发行版本</span></a></h1><table><tr><th>版本</th><th colspan="3">IoTDB 二进制包</th><th colspan="3">IoTDB 源代码</th><th>发布说明</th></tr><tr><td rowspan="1">1.3.1</td><td><a href="https://www.apache.org/dyn/closer.cgi/iotdb/1.3.1/apache-iotdb-1.3.1-all-bin.zip">All-in-one</a></td><td><a href="https://www.apache.org/dyn/closer.cgi/iotdb/1.3.1/apache-iotdb-1.3.1-all-bin.zip.sha512">SHA512</a></td><td><a href="https://www.apache.org/dyn/closer.cgi/1.3.1/apache-iotdb-1.3.1-all-bin.zip.asc">ASC</a></td><td rowspan="1"><a href="https://www.apache.org/dyn/closer.cgi/iotdb/1.3.1/apache-iotdb-1.3.1-source-release.zip">源代码</a></td><td rowspan="1"><a href="https://www.apache.org/dyn/closer.cgi/iotdb/1.3.1/apache-iotdb-1.3.1-source-release.zip.sha512">SHA512</a></td><td rowspan="1"><a href="https://www.apache.org/dyn/closer.cgi/1.3.1/apache-iotdb-1.3.1-source-release.zip.asc">ASC</a></td><td rowspan="1"><a href="https://dlcdn.apache.org/iotdb/1.3.1/RELEASE_NOTES.md">release notes</a></td></tr><tr><td rowspan="3">0.13.4</td><td><a href="https://dlcdn.apache.org/iotdb/0.13.4/apache-iotdb-0.13.4-all-bin.zip">All-in-one</a></td><td><a href="https://dlcdn.apache.org/iotdb/0.13.4/apache-iotdb-0.13.4-all-bin.zip.sha512">SHA512</a></td><td><a href="https://dlcdn.apache.org/iotdb/0.13.4/apache-iotdb-0.13.4-all-bin.zip.asc">ASC</a></td><td rowspan="3"><a href="https://dlcdn.apache.org/iotdb/0.13.4/apache-iotdb-0.13.4-source-release.zip">源代码</a></td><td rowspan="3"><a href="https://dlcdn.apache.org/iotdb/0.13.4/apache-iotdb-0.13.4-source-release.zip.sha512">SHA512</a></td><td rowspan="3"><a href="https://dlcdn.apache.org/iotdb/0.13.4/apache-iotdb-0.13.4-source-release.zip.asc">ASC</a></td><td rowspan="3"><a href="https://archive.apache.org/dist/iotdb/0.13.4/RELEASE_NOTES.md">release notes</a></td></tr><tr><td><a href="https://dlcdn.apache.org/iotdb/0.13.4/apache-iotdb-0.13.4-grafana-connector-bin.zip">Grafana 连接器</a></td><td><a href="https://dlcdn.apache.org/iotdb/0.13.4/apache-iotdb-0.13.4-grafana-connector-bin.zip.sha512">SHA512</a></td><td><a href="https://dlcdn.apache.org/iotdb/0.13.4/apache-iotdb-0.13.4-grafana-connector-bin.zip.asc">ASC</a></td></tr><tr><td><a href="https://www.apache.org/dyn/closer.cgi/iotdb/0.13.3/apache-iotdb-0.13.3-grafana-plugin-bin.zip">Grafana 插件</a></td><td><a href="https://downloads.apache.org/iotdb/0.13.3/apache-iotdb-0.13.3-grafana-plugin-bin.zip.sha512">SHA512</a></td><td><a href="https://downloads.apache.org/iotdb/0.13.3/apache-iotdb-0.13.3-grafana-plugin-bin.zip.asc">ASC</a></td></tr></table><p>历史版本下载：<a href="https://archive.apache.org/dist/iotdb/" target="_blank" rel="noopener noreferrer">https://archive.apache.org/dist/iotdb/<span><svg class="external-link-icon" xmlns="http://www.w3.org/2000/svg" aria-hidden="true" focusable="false" x="0px" y="0px" viewBox="0 0 100 100" width="15" height="15"><path fill="currentColor" d="M18.8,85.1h56l0,0c2.2,0,4-1.8,4-4v-32h-8v28h-48v-48h28v-8h-32l0,0c-2.2,0-4,1.8-4,4v56C14.8,83.3,16.6,85.1,18.8,85.1z"></path><polygon fill="currentColor" points="45.7,48.7 51.3,54.3 77.2,28.5 77.2,37.2 85.2,37.2 85.2,14.9 62.8,14.9 62.8,22.9 71.5,22.9"></polygon></svg><span class="external-link-icon-sr-only">open in new window</span></span></a></p><h2 id="环境配置" tabindex="-1"><a class="header-anchor" href="#环境配置"><span>环境配置</span></a></h2><ul><li>推荐修改的操作系统参数 <ul><li>将 somaxconn 设置为 65535 以避免系统在高负载时出现 &quot;connection reset&quot; 错误。<div class="language-text line-numbers-mode" data-ext="text" data-title="text"><pre class="language-text"><code># Linux
&gt; sudo sysctl -w net.core.somaxconn=65535
 
# FreeBSD or Darwin
&gt; sudo sysctl -w kern.ipc.somaxconn=65535
</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></div></li></ul></li></ul><h2 id="关于-version-1-0" tabindex="-1"><a class="header-anchor" href="#关于-version-1-0"><span>关于 Version 1.0</span></a></h2><ul><li><p>如何从 v0.13.x 升级到 v1.0.x?</p><ul><li><strong>1.0版本进行了 SQL 语法约定的改动（请参考用户手册语法约定章节）,不兼容之处可以参考下方1.0 版本不兼容的语法详细说明</strong>。</li><li>为了保证 UDF 相关 API 的稳定性，1.0 版本中 UDF 相关 API 被独立为一个单独的 module，不再依赖 tsfile 包，已经实现的 UDF 需要改写代码，将 <code>TsDataType</code> 替换为 <code>Type</code>，将 <code>org.apache.iotdb.tsfile.utils.Binary</code> 替换成 <code>org.apache.iotdb.udf.api.type.Binary</code>，并重新进行打包装载流程。</li></ul></li></ul><h3 id="_1-0-版本不兼容的语法详细说明" tabindex="-1"><a class="header-anchor" href="#_1-0-版本不兼容的语法详细说明"><span>1.0 版本不兼容的语法详细说明</span></a></h3><p>在之前版本的语法约定中，为了保持兼容性，我们引入了一些会引起歧义的规定。为了避免歧义，我们设计了新的语法约定，本章将说明旧语法约定中存在的问题，以及我们做出改动的原因。</p><h4 id="标识符限制增强" tabindex="-1"><a class="header-anchor" href="#标识符限制增强"><span>标识符限制增强</span></a></h4><p>在0.13及之前版本中，不使用反引号引用的标识符（包括路径结点）允许为实数（实数路径名在 <code>SELECT</code> 子句中需要用反引号括起），且允许包含部分特殊字符，<strong>在 1.0 版本中，不使用反引号引用的标识符不允许为实数，不使用反引号引用的标识符，只允许包含字母、中文字符、下划线。</strong></p><h4 id="路径名使用的相关问题" tabindex="-1"><a class="header-anchor" href="#路径名使用的相关问题"><span>路径名使用的相关问题</span></a></h4><p>在旧语法约定中，什么时候需要给路径结点名添加引号，用单双引号还是反引号的规则较为复杂，在新的语法约定中我们做了统一，具体可以参考本文档的相关章节。</p><h5 id="单双引号和反引号的使用时机" tabindex="-1"><a class="header-anchor" href="#单双引号和反引号的使用时机"><span>单双引号和反引号的使用时机</span></a></h5><p>在之前的语法约定中，路径结点名被定义成标识符，但是当需要在路径结点名中使用路径分隔符 . 时，需要使用单引号或者双引号引用。这与标识符使用反引号引用的规则相悖。</p><div class="language-SQL line-numbers-mode" data-ext="SQL" data-title="SQL"><pre class="language-SQL"><code># 在之前的语法约定中，如果需要创建时间序列 root.sg.`www.baidu.com`，需要使用下述语句：
create root.sg.&#39;www.baidu.com&#39; with datatype=BOOLEAN, encoding=PLAIN

# 该语句创建的时间序列实际为 root.sg.&#39;www.baidu.com&#39;，即引号一并存入,该时间序列的三个结点为{&quot;root&quot;,&quot;sg&quot;,&quot;&#39;www.baidu.com&#39;&quot;}

# 在查询语句中，如果希望查询该时间序列的数据，查询语句如下：
select &#39;www.baidu.com&#39; from root.sg;
</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></div><p><strong>而在 1.0 版本的语法约定中，特殊路径结点名统一使用反引号引用：</strong></p><div class="language-SQL line-numbers-mode" data-ext="SQL" data-title="SQL"><pre class="language-SQL"><code># 在现有语法约定中，如果需要创建时间序列 root.sg.`www.baidu.com`，语法如下：
create root.sg.`www.baidu.com` with datatype = BOOLEAN, encoding = PLAIN

# 查询该时间序列可以通过如下语句：
select `www.baidu.com` from root.sg;
</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></div><h5 id="路径结点名内部使用引号的问题" tabindex="-1"><a class="header-anchor" href="#路径结点名内部使用引号的问题"><span>路径结点名内部使用引号的问题</span></a></h5><p>在旧语法约定中，在路径结点名中使用单引号 &#39; 和 双引号 &quot; 时，需要使用反斜杠 \ 进行转义，且反斜杠会被视为路径结点名的一部分存入，而在使用其它标识符时没有这个限制，造成了不统一。</p><div class="language-SQL line-numbers-mode" data-ext="SQL" data-title="SQL"><pre class="language-SQL"><code># 创建时间序列 root.sg.\&quot;a
create timeseries root.sg.`\&quot;a` with datatype=TEXT,encoding=PLAIN;

# 查询时间序列 root.sg.\&quot;a
select `\&quot;a` from root.sg;
+-----------------------------+-----------+
|                         Time|root.sg.\&quot;a|
+-----------------------------+-----------+
|1970-01-01T08:00:00.004+08:00|       test|
+-----------------------------+-----------+
</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><strong>在新语法约定中，特殊路径结点名统一使用反引号进行引用</strong>，在路径结点名中使用单双引号无须添加反斜杠转义，使用反引号需要双写，具体可以参考新语法约定路径结点名章节。</p><h4 id="session-接口相关" tabindex="-1"><a class="header-anchor" href="#session-接口相关"><span>Session 接口相关</span></a></h4><h5 id="session-接口语法限制" tabindex="-1"><a class="header-anchor" href="#session-接口语法限制"><span>Session 接口语法限制</span></a></h5><p>在0.13版本中，对于非SQL接口中使用路径结点的限制如下：</p><ul><li>经参数传入的路径或路径前缀中的节点： <ul><li>在 SQL 语句中需要使用反引号（`）进行转义的，此处均不需要进行转义。</li><li>使用单引号或双引号括起的节点，仍需要使用单引号或双引号括起，并且要针对 JAVA 字符串进行反转义。</li><li>对于 <code>checkTimeseriesExists</code> 接口，由于内部调用了 IoTDB-SQL 接口，因此需要和 SQL 语法规范保持一致，并且针对 JAVA 字符串进行反转义。</li></ul></li></ul><p><strong>1.0 版本中，对非SQL接口中使用路径结点的限制增强：</strong></p><ul><li><p><strong>经参数传入的路径或路径前缀中的节点： 在 SQL 语句中需要使用反引号（`）进行转义的，均需要使用反引号进行转义。</strong></p></li><li><p><strong>语法说明相关代码示例可以参考：</strong><code>example/session/src/main/java/org/apache/iotdb/SyntaxConventionRelatedExample.java</code></p></li></ul><h5 id="sql和session接口对字符串反转义处理不一致" tabindex="-1"><a class="header-anchor" href="#sql和session接口对字符串反转义处理不一致"><span>SQL和Session接口对字符串反转义处理不一致</span></a></h5><p><strong>在之前版本中，使用字符串时，SQL 和 Session 接口存在不一致的情况</strong>。比如使用 SQL 插入 Text 类型数据时，会对字符串进行反转义处理，而使用 Session 接口时不会进行这样的处理，存在不一致。<strong>在新的语法约定中，我们统一不对字符串做反转义处理，存入什么内容，在查询时就会得到什么内容(字符串内部使用单双引号的规则可以参考本文档字符串常量章节)。</strong></p><p><strong>下面是旧语法约定中不一致的例子：</strong></p><p>使用 Session 的 insertRecord 方法向时序 root.sg.a 中插入数据</p><div class="language-Java line-numbers-mode" data-ext="Java" data-title="Java"><pre class="language-Java"><code>// session 插入
String deviceId = &quot;root.sg&quot;;
List&lt;String&gt; measurements = new ArrayList&lt;&gt;();
measurements.add(&quot;a&quot;);
String[] values = new String[]{&quot;\\\\&quot;, &quot;\\t&quot;, &quot;\\\&quot;&quot;, &quot;\\u96d5&quot;};
for(int i = 0; i &lt;= values.length; i++){
  List&lt;String&gt; valueList = new ArrayList&lt;&gt;();
  valueList.add(values[i]);
  session.insertRecord(deviceId, i + 1, measurements, valueList);
  }
</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>查询 root.sg.a 的数据，可以看到没有做反转义处理：</p><div class="language-Plain%20Text line-numbers-mode" data-ext="Plain%20Text" data-title="Plain%20Text"><pre class="language-Plain%20Text"><code>// 查询结果
+-----------------------------+---------+
|                         Time|root.sg.a|
+-----------------------------+---------+
|1970-01-01T08:00:00.001+08:00|       \\|
|1970-01-01T08:00:00.002+08:00|       \t|
|1970-01-01T08:00:00.003+08:00|       \&quot;|
|1970-01-01T08:00:00.004+08:00|   \u96d5|
+-----------------------------+---------+
</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></div><p>而使用 SQL 向 root.sg.a 中插入数据</p><div class="language-SQL line-numbers-mode" data-ext="SQL" data-title="SQL"><pre class="language-SQL"><code># SQL 插入
insert into root.sg(time, a) values(1, &quot;\\&quot;)
insert into root.sg(time, a) values(2, &quot;\t&quot;)
insert into root.sg(time, a) values(3, &quot;\&quot;&quot;)
insert into root.sg(time, a) values(4, &quot;\u96d5&quot;)
</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></div><p>查询 root.sg.a 的数据，可以看到字符串进行了反转义：</p><div class="language-Plain%20Text line-numbers-mode" data-ext="Plain%20Text" data-title="Plain%20Text"><pre class="language-Plain%20Text"><code>// 查询结果
+-----------------------------+---------+
|                         Time|root.sg.a|
+-----------------------------+---------+
|1970-01-01T08:00:00.001+08:00|        \|
|1970-01-01T08:00:00.002+08:00|         |
|1970-01-01T08:00:00.003+08:00|        &quot;|
|1970-01-01T08:00:00.004+08:00|       雕|
+-----------------------------+---------+
</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></div><h1 id="如何升级" tabindex="-1"><a class="header-anchor" href="#如何升级"><span>如何升级</span></a></h1><ul><li><p>如何升级小版本 （例如，从 v0.12.4 to v0.12.5)?</p><ul><li>同一个大版本下的多个小版本是互相兼容的。</li><li>只需要下载新的小版本， 然后修改其配置文件，使其与原有版本的设置一致。</li><li>停掉旧版本进程，启动新版本即可。</li></ul></li><li><p>如何从 v0.13.x 升级到 v1.0.x？</p><ul><li>0.13版本与1.0版本的文件目录结构不同，<strong><!----></strong>。如果需要将0.13的数据导入至1.0，可以使用<a class="route-link" href="/zh/UserGuide/Master/Tools-System/Import-Export-Tool.html">LOAD</a>功能;</li><li><strong>0.13版本的默认RPC地址是0.0.0.0，1.0版本的默认RPC地址是127.0.0.1</strong></li></ul></li><li><p>如何从 v1.0.0 升级到 v1.x.0？</p><ul><li>停止写入，下载新版本文件，将lib文件夹全部替换，重启即可</li></ul></li><li><p>如何从 v0.12.x 升级到 v0.13.x?</p><ul><li>0.12 与 0.13 的数据文件格式兼容，但写前日志等格式不兼容，因此需要进行升级（但速度很快）：</li><li><strong><!----></strong></li><li>在 CLI 执行 <code>flush</code> 命令，确保关闭所有的 TsFile 文件。</li><li>我们推荐提前备份整个 data 目录，以备回滚。</li><li>下载最新 0.13 版本，解压并修改配置文件，尤其是 <strong><!----></strong>。并将各数据目录都指向备份的或者 v0.12 原来使用的数据目录。</li><li>停止 v0.12 的实例，启动 v0.13 的实例。</li><li><strong><!----></strong></li><li><strong>注意：0.13 的配置文件进行了较大改动，因此不要直接将 0.12 的配置文件用于 0.13</strong></li><li><strong>0.13 进行了 SQL 语法的改动，不使用反引号括起的标识符中仅能包含如下字符，否则需要使用反引号括起。</strong><ul><li><strong>[0-9 a-z A-Z _ : @ # $ { }] （字母，数字，部分特殊字符）</strong></li><li><strong>[&#39;\u2E80&#39;..&#39;\u9FFF&#39;] （UNICODE 中文字符）</strong></li></ul></li><li><strong>0.13 中 <code>SELECT</code> 子句中路径结点名如果是实数，需要使用反引号引起，用于与表达式中的常数区分。如语句 &quot;select 123 + `123` from <a href="http://root.sg" target="_blank" rel="noopener noreferrer">root.sg<span><svg class="external-link-icon" xmlns="http://www.w3.org/2000/svg" aria-hidden="true" focusable="false" x="0px" y="0px" viewBox="0 0 100 100" width="15" height="15"><path fill="currentColor" d="M18.8,85.1h56l0,0c2.2,0,4-1.8,4-4v-32h-8v28h-48v-48h28v-8h-32l0,0c-2.2,0-4,1.8-4,4v56C14.8,83.3,16.6,85.1,18.8,85.1z"></path><polygon fill="currentColor" points="45.7,48.7 51.3,54.3 77.2,28.5 77.2,37.2 85.2,37.2 85.2,14.9 62.8,14.9 62.8,22.9 71.5,22.9"></polygon></svg><span class="external-link-icon-sr-only">open in new window</span></span></a>&quot;，前一个123表示常数，后一个 `123`会和 <a href="http://root.sg" target="_blank" rel="noopener noreferrer">root.sg<span><svg class="external-link-icon" xmlns="http://www.w3.org/2000/svg" aria-hidden="true" focusable="false" x="0px" y="0px" viewBox="0 0 100 100" width="15" height="15"><path fill="currentColor" d="M18.8,85.1h56l0,0c2.2,0,4-1.8,4-4v-32h-8v28h-48v-48h28v-8h-32l0,0c-2.2,0-4,1.8-4,4v56C14.8,83.3,16.6,85.1,18.8,85.1z"></path><polygon fill="currentColor" points="45.7,48.7 51.3,54.3 77.2,28.5 77.2,37.2 85.2,37.2 85.2,14.9 62.8,14.9 62.8,22.9 71.5,22.9"></polygon></svg><span class="external-link-icon-sr-only">open in new window</span></span></a> 拼接，表示路径 <a href="http://root.sg" target="_blank" rel="noopener noreferrer">root.sg<span><svg class="external-link-icon" xmlns="http://www.w3.org/2000/svg" aria-hidden="true" focusable="false" x="0px" y="0px" viewBox="0 0 100 100" width="15" height="15"><path fill="currentColor" d="M18.8,85.1h56l0,0c2.2,0,4-1.8,4-4v-32h-8v28h-48v-48h28v-8h-32l0,0c-2.2,0-4,1.8-4,4v56C14.8,83.3,16.6,85.1,18.8,85.1z"></path><polygon fill="currentColor" points="45.7,48.7 51.3,54.3 77.2,28.5 77.2,37.2 85.2,37.2 85.2,14.9 62.8,14.9 62.8,22.9 71.5,22.9"></polygon></svg><span class="external-link-icon-sr-only">open in new window</span></span></a>.`123`。</strong></li></ul></li><li><p>如何从 v0.11.x 或 v0.10.x 升级到 v0.12.x?</p><ul><li>从 0.11 或 0.10 升级到 0.12 的过程与 v0.9 升级到 v0.10 类似，升级工具会自动进行数据文件的升级。</li><li><strong><!----></strong></li><li>用 CLI 调用<code>flush</code>，确保关闭所有的 TsFile 文件。</li><li>我们推荐提前备份数据文件（以及写前日志和 mlog 文件），以备回滚。</li><li>下载最新版，解压并修改配置文件。将各数据目录都指向备份的或者 v0.11 或 0.10 原来使用的数据目录。 把 0.11 中的其他修改都放到 0.12 中。</li><li>停止旧版本 IoTDB 的实例，启动 v0.12 的实例。IoTDB 将后台自动升级数据文件格式。在升级过程中数据可以进行查询和写入。 <ul><li>当日志中显示<code>All files upgraded successfully! </code> 后代表升级成功。</li><li><strong>注意 1：0.12 的配置文件进行了较大改动，因此不要直接将原本的配置文件用于 0.12</strong></li><li><strong>注意 2: 由于 0.12 不支持从 0.9 或者更低版本升级，如果需要升级，请先升级到 0.10 版本</strong></li><li><strong>注意 3: 在文件升级完成前，最好不要进行 delete 操作。如果删除某个 database 内的数据且该 database 内存在待升级文件，删除会失败。</strong></li></ul></li></ul></li><li><p>如何从 v0.10.x 升级到 v0.11.x?</p><ul><li>0.10 与 0.11 的数据文件格式兼容，但写前日志等格式不兼容，因此需要进行升级（但速度很快）：</li><li><strong><!----></strong></li><li>用 CLI 调用<code>flush</code>，确保关闭所有的 TsFile 文件。</li><li>我们推荐提前备份写前日志和 mlog 文件，以备回滚。</li><li>下载最新版，解压并修改配置文件。将各数据目录都指向备份的或者 v0.10 原来使用的数据目录。</li><li>停止 v0.10 的实例，启动 v0.11 的实例。IoTDB 将自动升级不兼容的文件格式。</li><li><strong>注意：0.11 的配置文件进行了较大改动，因此不要直接将 0.10 的配置文件用于 0.11</strong></li></ul></li><li><p>如何从 v0.9.x 升级到 v0.10.x?</p><ul><li><strong><!----></strong></li><li>用 CLI 调用<code>flush</code>，确保关闭所有的 TsFile 文件。</li><li>我们推荐提前备份数据文件（以及写前日志和 mlog 文件），以备回滚。</li><li>下载最新版，解压并修改配置文件。将各数据目录都指向备份的或者 v0.9 原来使用的数据目录。</li><li>停止 v0.9 的实例，启动 v0.10 的实例。IoTDB 将自动升级数据文件格式。</li></ul></li><li><p>如何从 0.8.x 升级到 v0.9.x?</p><ul><li>我们推荐提前备份数据文件（以及写前日志和 mlog 文件），以备回滚。</li><li>下载最新版，解压并修改配置文件。将各数据目录都指向备份的或者 v0.8 原来使用的数据目录。</li><li>停止 v0.8 的实例，启动 v0.9.x 的实例。IoTDB 将自动升级数据文件格式。</li></ul></li></ul><h1 id="所有版本" tabindex="-1"><a class="header-anchor" href="#所有版本"><span>所有版本</span></a></h1><p>在 <a href="https://archive.apache.org/dist/iotdb/" target="_blank" rel="noopener noreferrer">Archive repository<span><svg class="external-link-icon" xmlns="http://www.w3.org/2000/svg" aria-hidden="true" focusable="false" x="0px" y="0px" viewBox="0 0 100 100" width="15" height="15"><path fill="currentColor" d="M18.8,85.1h56l0,0c2.2,0,4-1.8,4-4v-32h-8v28h-48v-48h28v-8h-32l0,0c-2.2,0-4,1.8-4,4v56C14.8,83.3,16.6,85.1,18.8,85.1z"></path><polygon fill="currentColor" points="45.7,48.7 51.3,54.3 77.2,28.5 77.2,37.2 85.2,37.2 85.2,14.9 62.8,14.9 62.8,22.9 71.5,22.9"></polygon></svg><span class="external-link-icon-sr-only">open in new window</span></span></a> 查看所有版本</p><h1 id="验证哈希和签名" tabindex="-1"><a class="header-anchor" href="#验证哈希和签名"><span>验证哈希和签名</span></a></h1><p>除了我们的发行版，我们还在 *.sha512 文件中提供了 sha512 散列，并在 *.asc 文件中提供了加密签名。 Apache Software Foundation 提供了广泛的教程来 <a href="http://www.apache.org/info/verification.html" target="_blank" rel="noopener noreferrer">验证哈希和签名<span><svg class="external-link-icon" xmlns="http://www.w3.org/2000/svg" aria-hidden="true" focusable="false" x="0px" y="0px" viewBox="0 0 100 100" width="15" height="15"><path fill="currentColor" d="M18.8,85.1h56l0,0c2.2,0,4-1.8,4-4v-32h-8v28h-48v-48h28v-8h-32l0,0c-2.2,0-4,1.8-4,4v56C14.8,83.3,16.6,85.1,18.8,85.1z"></path><polygon fill="currentColor" points="45.7,48.7 51.3,54.3 77.2,28.5 77.2,37.2 85.2,37.2 85.2,14.9 62.8,14.9 62.8,22.9 71.5,22.9"></polygon></svg><span class="external-link-icon-sr-only">open in new window</span></span></a>，您可以使用任何这些发布签名的 <a href="https://downloads.apache.org/iotdb/KEYS" target="_blank" rel="noopener noreferrer">KEYS<span><svg class="external-link-icon" xmlns="http://www.w3.org/2000/svg" aria-hidden="true" focusable="false" x="0px" y="0px" viewBox="0 0 100 100" width="15" height="15"><path fill="currentColor" d="M18.8,85.1h56l0,0c2.2,0,4-1.8,4-4v-32h-8v28h-48v-48h28v-8h-32l0,0c-2.2,0-4,1.8-4,4v56C14.8,83.3,16.6,85.1,18.8,85.1z"></path><polygon fill="currentColor" points="45.7,48.7 51.3,54.3 77.2,28.5 77.2,37.2 85.2,37.2 85.2,14.9 62.8,14.9 62.8,22.9 71.5,22.9"></polygon></svg><span class="external-link-icon-sr-only">open in new window</span></span></a> 来遵循这些哈希和签名。</p></div><!--[--><!----><!--]--><footer class="vp-page-meta"><div class="vp-meta-item edit-link"><a 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