import{_ as l,r,o,c as s,a as n,d as e,e as i,b as d,f as a}from"./app-1A4W01qe.js";const c={},u=e("blockquote",null,[e("p",null,"Here are all files generated or used by IoTDB"),e("p",null,"Continuously Updating...")],-1),h=e("h1",{id:"stand-alone",tabindex:"-1"},[e("a",{class:"header-anchor",href:"#stand-alone","aria-hidden":"true"},"#"),i(" Stand-alone")],-1),m=e("h2",{id:"configuration-files",tabindex:"-1"},[e("a",{class:"header-anchor",href:"#configuration-files","aria-hidden":"true"},"#"),i(" Configuration Files")],-1),p=e("blockquote",null,[e("p",null,"under conf directory")],-1),f=e("li",null,"iotdb-datanode.properties",-1),b=e("li",null,"logback.xml",-1),g={href:"http://datanode-env.sh",target:"_blank",rel:"noopener noreferrer"},_=e("li",null,"jmx.access",-1),y=e("li",null,"jmx.password",-1),k=e("li",null,[i("iotdb-sync-client.properties "),e("ul",null,[e("li",null,"only sync tool use it")])],-1),x=a('<blockquote><p>under directory basedir/system/schema</p></blockquote><ol><li>system.properties <ul><li>record all immutable properties, will be checked when starting IoTDB to avoid system errors</li></ul></li></ol><h2 id="state-related-files" tabindex="-1"><a class="header-anchor" href="#state-related-files" aria-hidden="true">#</a> State Related Files</h2><h3 id="metadata-related-files" tabindex="-1"><a class="header-anchor" href="#metadata-related-files" aria-hidden="true">#</a> MetaData Related Files</h3><blockquote><p>under directory basedir/system/schema</p></blockquote><h4 id="meta" tabindex="-1"><a class="header-anchor" href="#meta" aria-hidden="true">#</a> Meta</h4><ol><li>mlog.bin <ul><li>record the meta operation</li></ul></li><li>mtree-1.snapshot <ul><li>snapshot of metadata</li></ul></li><li>mtree-1.snapshot.tmp <ul><li>temp file, to avoid damaging the snapshot when updating it</li></ul></li></ol><h4 id="tags-attributes" tabindex="-1"><a class="header-anchor" href="#tags-attributes" aria-hidden="true">#</a> Tags&amp;Attributes</h4><ol><li>tlog.txt <ul><li>store tags and attributes of each TimeSeries</li><li>about 700 bytes for each TimeSeries</li></ul></li></ol><h3 id="data-related-files" tabindex="-1"><a class="header-anchor" href="#data-related-files" aria-hidden="true">#</a> Data Related Files</h3><blockquote><p>under directory basedir/data/</p></blockquote><h4 id="wal" tabindex="-1"><a class="header-anchor" href="#wal" aria-hidden="true">#</a> WAL</h4><blockquote><p>under directory basedir/wal</p></blockquote><ol><li>{StorageGroupName}-{TsFileName}/wal1 <ul><li>every database has several wal files, and every memtable has one associated wal file before it is flushed into a TsFile</li></ul></li></ol><h4 id="tsfile" tabindex="-1"><a class="header-anchor" href="#tsfile" aria-hidden="true">#</a> TsFile</h4><blockquote><p>under directory data/sequence or unsequence/{DatabaseName}/{DataRegionId}/{TimePartitionId}/</p></blockquote><ol><li>{time}-{version}-{mergeCnt}.tsfile <ul><li>normal data file</li></ul></li><li>{TsFileName}.tsfile.mod <ul><li>modification file</li><li>record delete operation</li></ul></li></ol><h4 id="tsfileresource" tabindex="-1"><a class="header-anchor" href="#tsfileresource" aria-hidden="true">#</a> TsFileResource</h4><ol><li>{TsFileName}.tsfile.resource <ul><li>descriptor and statistic file of a TsFile</li></ul></li><li>{TsFileName}.tsfile.resource.temp <ul><li>temp file</li><li>avoid damaging the tsfile.resource when updating it</li></ul></li><li>{TsFileName}.tsfile.resource.closing <ul><li>close flag file, to mark a tsfile closing so during restarts we can continue to close it or reopen it</li></ul></li></ol><h4 id="version" tabindex="-1"><a class="header-anchor" href="#version" aria-hidden="true">#</a> Version</h4><blockquote><p>under directory basedir/system/databases/{DatabaseName}/{DataRegionId}/{TimePartitionId} or upgrade</p></blockquote>',21),q=e("ol",null,[e("li",{version:""},[i("Version- "),e("ul",null,[e("li",null,"version file, record the max version in fileName of a database")])])],-1),v=a('<h4 id="upgrade" tabindex="-1"><a class="header-anchor" href="#upgrade" aria-hidden="true">#</a> Upgrade</h4><blockquote><p>under directory basedir/system/upgrade</p></blockquote><ol><li>upgrade.txt <ul><li>record which files have been upgraded</li></ul></li></ol><h4 id="merge" tabindex="-1"><a class="header-anchor" href="#merge" aria-hidden="true">#</a> Merge</h4><blockquote><p>under directory basedir/system/databases/{StorageGroup}/</p></blockquote><ol><li>merge.mods <ul><li>modification file generated during a merge</li></ul></li><li>merge.log <ul><li>record the progress of a merge</li></ul></li><li>tsfile.merge <ul><li>temporary merge result file, an involved sequence tsfile may have one during a merge</li></ul></li></ol><h4 id="authority" tabindex="-1"><a class="header-anchor" href="#authority" aria-hidden="true">#</a> Authority</h4><blockquote><p>under directory basedir/system/users/<br> under directory basedir/system/roles/</p></blockquote><h4 id="compressratio" tabindex="-1"><a class="header-anchor" href="#compressratio" aria-hidden="true">#</a> CompressRatio</h4><blockquote><p>under directory basedir/system/compression_ration</p></blockquote>',10),w=e("ol",null,[e("li",{calTimes:""},[i("Ration-{compressionRatioSum}- "),e("ul",null,[e("li",null,"record compression ratio of each tsfile")])])],-1);function T(S,N){const t=r("ExternalLinkIcon");return o(),s("div",null,[n(`

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