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| gitHub |
| <span><svg 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" class="icon outbound"><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="sr-only">(opens new window)</span></span></a></nav> <ul class="sidebar-links"><li><section class="sidebar-group depth-0"><p class="sidebar-heading open"><span>IoTDB用户手册 (V0.11.x)</span> <!----></p> <!----></section></li><li><section class="sidebar-group collapsable depth-0"><p class="sidebar-heading"><span>开始</span> <span class="arrow right"></span></p> <!----></section></li><li><section class="sidebar-group collapsable depth-0"><p class="sidebar-heading"><span>概述</span> <span class="arrow right"></span></p> <!----></section></li><li><section class="sidebar-group collapsable depth-0"><p class="sidebar-heading"><span>概念</span> <span class="arrow right"></span></p> <!----></section></li><li><section class="sidebar-group collapsable depth-0"><p class="sidebar-heading"><span>服务器端</span> <span class="arrow right"></span></p> <!----></section></li><li><section class="sidebar-group collapsable depth-0"><p class="sidebar-heading"><span>客户端</span> <span class="arrow right"></span></p> <!----></section></li><li><section class="sidebar-group collapsable depth-0"><p class="sidebar-heading"><span>操作指南</span> <span class="arrow right"></span></p> <!----></section></li><li><section class="sidebar-group collapsable depth-0"><p class="sidebar-heading"><span>系统工具</span> <span class="arrow right"></span></p> <!----></section></li><li><section class="sidebar-group collapsable depth-0"><p class="sidebar-heading"><span>生态集成</span> <span class="arrow right"></span></p> <!----></section></li><li><section class="sidebar-group collapsable depth-0"><p class="sidebar-heading"><span>系统设计</span> <span class="arrow right"></span></p> <!----></section></li></ul> </aside> <main class="page"> <div class="content content__default"><blockquote><p>下面是IoTDB生成或使用的文件</p> <p>持续更新中...</p></blockquote> <h1 id="单机模式"><a href="#单机模式" class="header-anchor">#</a> 单机模式</h1> <h2 id="配置文件"><a href="#配置文件" class="header-anchor">#</a> 配置文件</h2> <blockquote><p>conf目录下</p></blockquote> <ol><li>iotdb-engine.properties</li> <li>logback.xml</li> <li>iotdb-env.sh</li> <li>jmx.access</li> <li>jmx.password</li> <li>iotdb-sync-client.properties |
| <ul><li>只有Sync工具会使用</li></ul></li></ol> <blockquote><p>在basedir/system/schema目录下</p></blockquote> <ol><li>system.properties |
| <ul><li>记录的是所有不能变动的配置，启动时会检查，防止系统错误</li></ul></li></ol> <h2 id="状态相关的文件"><a href="#状态相关的文件" class="header-anchor">#</a> 状态相关的文件</h2> <h3 id="元数据相关文件"><a href="#元数据相关文件" class="header-anchor">#</a> 元数据相关文件</h3> <blockquote><p>在basedir/system/schema目录下</p></blockquote> <h4 id="元数据"><a href="#元数据" class="header-anchor">#</a> 元数据</h4> <ol><li>mlog.txt |
| <ul><li>记录的是元数据操作</li></ul></li> <li>mtree-1.snapshot |
| <ul><li>元数据快照</li></ul></li> <li>mtree-1.snapshot.tmp |
| <ul><li>临时文件，防止快照更新时，损坏旧快照文件</li></ul></li></ol> <h4 id="标签和属性"><a href="#标签和属性" class="header-anchor">#</a> 标签和属性</h4> <ol><li>tlog.txt |
| <ul><li>存储每个时序的标签和属性</li> <li>默认情况下每个时序700字节</li></ul></li></ol> <h3 id="数据相关文件"><a href="#数据相关文件" class="header-anchor">#</a> 数据相关文件</h3> <blockquote><p>在basedir/data/目录下</p></blockquote> <h4 id="wal"><a href="#wal" class="header-anchor">#</a> WAL</h4> <blockquote><p>在basedir/wal目录下</p></blockquote> <ol><li>{StroageName}-{TsFileName}/wal1 |
| <ul><li>每个memtable会对应一个wal文件</li></ul></li></ol> <h4 id="tsfile"><a href="#tsfile" class="header-anchor">#</a> TsFile</h4> <blockquote><p>在basedir/data/sequence or unsequence/{StorageGroupName}/{TimePartitionId}/目录下</p></blockquote> <ol><li>{time}-{version}-{mergeCnt}.tsfile |
| <ul><li>数据文件</li></ul></li> <li>{TsFileName}-{level}-{time}.vm |
| <ul><li>虚拟合并数据文件，用于优化查询，详细请看https://issues.apache.org/jira/browse/IOTDB-706</li></ul></li> <li>{TsFileName}.tsfile.mod |
| <ul><li>更新文件，主要记录删除操作</li></ul></li></ol> <h4 id="tsfileresource"><a href="#tsfileresource" class="header-anchor">#</a> TsFileResource</h4> <ol><li>{TsFileName}.tsfile.resource |
| <ul><li>TsFile的概要与索引文件</li></ul></li> <li>{TsFileName}.tsfile.resource.temp |
| <ul><li>临时文件，用于避免更新tsfile.resource时损坏tsfile.resource</li></ul></li> <li>{TsFileName}.tsfile.resource.closing |
| <ul><li>关闭标记文件，用于标记TsFile处于关闭状态，重启后可以据此选择是关闭或继续写入该文件</li></ul></li></ol> <h4 id="version"><a href="#version" class="header-anchor">#</a> Version</h4> <blockquote><p>在basedir/system/storage_groups/{StorageGroupName}/{TimePartitionId} or upgrade目录下</p></blockquote> <ol><li>Version-{version} |
| <ul><li>版本号文件，使用文件名来记录当前最大的版本号</li></ul></li></ol> <h4 id="upgrade"><a href="#upgrade" class="header-anchor">#</a> Upgrade</h4> <blockquote><p>在basedir/system/upgrade目录下</p></blockquote> <ol><li>upgrade.txt |
| <ul><li>记录升级进度</li></ul></li></ol> <h4 id="merge"><a href="#merge" class="header-anchor">#</a> Merge</h4> <blockquote><p>在basedir/system/storage_groups/{StrorageGroup}/目录下</p></blockquote> <ol><li>merge.mods |
| <ul><li>记录合并过程中发生的删除等操作</li></ul></li> <li>merge.log |
| <ul><li>记录合并进展</li></ul></li> <li>tsfile.merge |
| <ul><li>临时文件，每个顺序文件在合并时会产生一个对应的merge文件，用于存放临时数据</li></ul></li></ol> <h4 id="authority"><a href="#authority" class="header-anchor">#</a> Authority</h4> <blockquote><p>在basedir/system/users/目录下是用户信息 |
| 在basedir/system/roles/目录下是角色信息</p></blockquote> <h4 id="compressratio"><a href="#compressratio" class="header-anchor">#</a> CompressRatio</h4> <blockquote><p>在basedir/system/compression_ration目录下</p></blockquote> <ol><li>Ration-{compressionRatioSum}-{calTimes} |
| <ul><li>记录每个文件的压缩率</li></ul></li></ol> <hr> <h1 id="集群模式"><a href="#集群模式" class="header-anchor">#</a> 集群模式</h1> <blockquote><p>注意：下面文件是相对单机新增的文件列表</p></blockquote> <h2 id="配置文件-2"><a href="#配置文件-2" class="header-anchor">#</a> 配置文件</h2> <ol><li>iotdb-cluster.properties</li> <li>cluster-env.sh</li></ol> <h2 id="状态相关文件"><a href="#状态相关文件" class="header-anchor">#</a> 状态相关文件</h2> <blockquote><p>在basedir目录下</p></blockquote> <ol><li>node_identifier |
| <ul><li>本地节点在集群中的唯一标识</li></ul></li> <li>partitions |
| <ul><li>分区表文件，记录数据分布信息</li></ul></li> <li>{time}_{random}.task |
| <ul><li>pullSnapshotTask文件，记录的是slot和owner，当一个节点加入集群时，会创建这个文件来跟踪数据拉取情况</li> <li>在basedir/raft/{nodeIdentifier}/snapshot_task/目录下</li></ul></li></ol> <h2 id="raft相关文件"><a href="#raft相关文件" class="header-anchor">#</a> Raft相关文件</h2> <blockquote><p>在basedir/system/raftLog/{nodeIdentifier}/目录下</p></blockquote> <h3 id="raft-log"><a href="#raft-log" class="header-anchor">#</a> Raft Log</h3> <ol><li>.data-{version} |
| <ul><li>raft committed log, 默认只保留最新的1000条日志</li></ul></li></ol> <h3 id="raft-meta"><a href="#raft-meta" class="header-anchor">#</a> Raft Meta</h3> <ol><li>logMeta |
| <ul><li>raft一些相关元数据，例如选举相关信息和日志提交信息 |
| <ul><li>hardState: voteFor, term</li> <li>Meta: commitLogTerm, commitLogIndex, lastLogTerm, lastLogIndex</li> <li>...</li></ul></li></ul></li> <li>logMeta.tmp |
| <ul><li>临时文件，用于更新logMeta时防止损坏旧的logMeta文件</li></ul></li></ol> <h3 id="raft-catch-up"><a href="#raft-catch-up" class="header-anchor">#</a> Raft Catch Up</h3> <blockquote><p>在basedir/remote/{nodeIdentifier}/{storageGroupName}/{partitionNum}/目录下</p></blockquote> <ol><li>{fileName}.tsfile |
| <ul><li>远程TsFile，拉取完毕会load进对应的存储组数据目录下</li></ul></li> <li>{fileName}.tsfile.mod |
| <ul><li>远程更新文件TsFile.mod，拉取完毕会load进对应的存储组数据目录下</li></ul></li></ol></div> <!----> <p style="text-align: center;">Copyright © 2021 The Apache Software Foundation.<br> |
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