(window.webpackJsonp=window.webpackJsonp||[]).push([[1038],{1611:function(t,e,a){"use strict";a.r(e);var s=a(71),n=Object(s.a)({},(function(){var t=this,e=t.$createElement,a=t._self._c||e;return a("ContentSlotsDistributor",{attrs:{"slot-key":t.$parent.slotKey}},[a("h1",{attrs:{id:"tsfile-文件格式"}},[a("a",{staticClass:"header-anchor",attrs:{href:"#tsfile-文件格式"}},[t._v("#")]),t._v(" TsFile 文件格式")]),t._v(" "),a("h2",{attrs:{id:"_1-tsfile-设计"}},[a("a",{staticClass:"header-anchor",attrs:{href:"#_1-tsfile-设计"}},[t._v("#")]),t._v(" 1. 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"),a("td",{staticStyle:{"text-align":"center"}},[t._v("此元数据索引节点的结束偏移量")])]),t._v(" "),a("tr",[a("td",{staticStyle:{"text-align":"center"}},[t._v("nodeType")]),t._v(" "),a("td",{staticStyle:{"text-align":"center"}},[t._v("MetadataIndexNodeType")]),t._v(" "),a("td",{staticStyle:{"text-align":"center"}},[t._v("节点类型")])])])]),t._v(" "),a("p",[t._v("元数据索引项 (MetadataIndexEntry) 的成员和类型具体如下：")]),t._v(" "),a("table",[a("thead",[a("tr",[a("th",{staticStyle:{"text-align":"center"}},[t._v("成员")]),t._v(" "),a("th",{staticStyle:{"text-align":"center"}},[t._v("类型")]),t._v(" "),a("th",{staticStyle:{"text-align":"center"}},[t._v("解释")])])]),t._v(" "),a("tbody",[a("tr",[a("td",{staticStyle:{"text-align":"center"}},[t._v("name")]),t._v(" "),a("td",{staticStyle:{"text-align":"center"}},[t._v("String")]),t._v(" "),a("td",{staticStyle:{"text-align":"center"}},[t._v("对应设备或传感器的名字")])]),t._v(" "),a("tr",[a("td",{staticStyle:{"text-align":"center"}},[t._v("offset")]),t._v(" "),a("td",{staticStyle:{"text-align":"center"}},[t._v("long")]),t._v(" "),a("td",{staticStyle:{"text-align":"center"}},[t._v("偏移量")])])])]),t._v(" "),a("p",[t._v("所有的元数据索引节点构成一棵"),a("strong",[t._v("元数据索引树")]),t._v("，这棵树最多由两个层级组成：设备索引层级和传感器索引层级，在不同的情况下会有不同的组成方式。元数据索引节点类型有四种，分别是"),a("code",[t._v("INTERNAL_DEVICE")]),t._v("、"),a("code",[t._v("LEAF_DEVICE")]),t._v("、"),a("code",[t._v("INTERNAL_MEASUREMENT")]),t._v("、"),a("code",[t._v("LEAF_MEASUREMENT")]),t._v("，分别对应设备索引层级的中间节点和叶子节点，和传感器索引层级的中间节点和叶子节点。\n只有传感器索引层级的叶子节点("),a("code",[t._v("LEAF_MEASUREMENT")]),t._v(") 指向 "),a("code",[t._v("TimeseriesMetadata")]),t._v("。")]),t._v(" "),a("p",[t._v("为了更清楚的说明元数据索引树的结构，这里我们使用四个例子来加以详细说明。")]),t._v(" "),a("p",[t._v("元数据索引树的最大度（即每个节点的最大子节点个数）是可以由用户进行配置的，配置项为"),a("code",[t._v("max_degree_of_index_node")]),t._v("，其默认值为1024。在以下例子中，为了简化，我们假定 "),a("code",[t._v("max_degree_of_index_node = 10")]),t._v("。")]),t._v(" "),a("img",{staticStyle:{width:"100%","max-width":"800px","max-height":"600px","margin-left":"auto","margin-right":"auto",display:"block"},attrs:{src:"https://user-images.githubusercontent.com/19167280/81935219-de3fd080-9622-11ea-9aa1-a59bef1c0001.png"}}),t._v(" "),a("p",[t._v("在5个设备，每个设备有5个传感器的情况下，由于设备数和传感器树均不超过 "),a("code",[t._v("max_degree_of_index_node")]),t._v("，因此元数据索引树只有默认的传感器层级。在这个层级里，每个 MetadataIndexNode 最多由10个 MetadataIndexEntry 组成。根节点的 MetadataIndexNode 是 "),a("code",[t._v("INTERNAL_MEASUREMENT")]),t._v(" 类型，其中的5个 MetadataIndexEntry 指向对应的设备的 MetadataIndexNode，这些节点直接指向 "),a("code",[t._v("TimeseriesMetadata")]),t._v("，是 "),a("code",[t._v("LEAF_MEASUREMENT")]),t._v("。")]),t._v(" "),a("img",{staticStyle:{width:"100%","max-width":"800px","max-height":"600px","margin-left":"auto","margin-right":"auto",display:"block"},attrs:{src:"https://user-images.githubusercontent.com/19167280/81935210-d97b1c80-9622-11ea-8a69-2c2c5f05a876.png"}}),t._v(" "),a("p",[t._v("在1个设备，设备中有150个传感器的情况下，传感器个数超过了 "),a("code",[t._v("max_degree_of_index_node")]),t._v("，元数据索引树有默认的传感器层级。在这个层级里，每个 MetadataIndexNode 最多由10个 MetadataIndexEntry 组成。直接指向 "),a("code",[t._v("TimeseriesMetadata")]),t._v("的节点类型均为 "),a("code",[t._v("LEAF_MEASUREMENT")]),t._v("；而后续产生的中间节点和根节点不是传感器索引层级的叶子节点，这些节点是 "),a("code",[t._v("INTERNAL_MEASUREMENT")]),t._v("。")]),t._v(" "),a("img",{staticStyle:{width:"100%","max-width":"800px","max-height":"600px","margin-left":"auto","margin-right":"auto",display:"block"},attrs:{src:"https://user-images.githubusercontent.com/19167280/81935182-cd8f5a80-9622-11ea-8e41-661a5219974b.png"}}),t._v(" "),a("p",[t._v("在150个设备，每个设备中有1个传感器的情况下，设备个数超过了 "),a("code",[t._v("max_degree_of_index_node")]),t._v("，形成元数据索引树的传感器层级和设备索引层级。在这两个层级里，每个 MetadataIndexNode 最多由10个 MetadataIndexEntry 组成。直接指向 "),a("code",[t._v("TimeseriesMetadata")]),t._v(" 的节点类型为 "),a("code",[t._v("LEAF_MEASUREMENT")]),t._v("，传感器索引层级的根节点同时作为设备索引层级的叶子节点，其节点类型为 "),a("code",[t._v("LEAF_DEVICE")]),t._v("；而后续产生的中间节点和根节点不是设备索引层级的叶子节点，因此节点类型为 "),a("code",[t._v("INTERNAL_DEVICE")]),t._v("。")]),t._v(" "),a("img",{staticStyle:{width:"100%","max-width":"800px","max-height":"600px","margin-left":"auto","margin-right":"auto",display:"block"},attrs:{src:"https://user-images.githubusercontent.com/19167280/81935138-b6e90380-9622-11ea-94f9-c97bd2b5d050.png"}}),t._v(" "),a("p",[t._v("在150个设备，每个设备中有150个传感器的情况下，传感器和设备个数均超过了 "),a("code",[t._v("max_degree_of_index_node")]),t._v("，形成元数据索引树的传感器层级和设备索引层级。在这两个层级里，每个 MetadataIndexNode 均最多由10个 MetadataIndexEntry 组成。如前所述，从根节点到设备索引层级的叶子节点，类型分别为"),a("code",[t._v("INTERNAL_DEVICE")]),t._v(" 和 "),a("code",[t._v("LEAF_DEVICE")]),t._v("，而每个设备索引层级的叶子节点都是传感器索引层级的根节点，从这里到传感器索引层级的叶子节点，类型分别为"),a("code",[t._v("INTERNAL_MEASUREMENT")]),t._v(" 和 "),a("code",[t._v("LEAF_MEASUREMENT")]),t._v("。")]),t._v(" "),a("p",[t._v("元数据索引采用树形结构进行设计的目的是在设备数或者传感器数量过大时，可以不用一次读取所有的 "),a("code",[t._v("TimeseriesMetadata")]),t._v("，只需要根据所读取的传感器定位对应的节点，从而减少 I/O，加快查询速度。有关 TsFile 的读流程将在本章最后一节加以详细说明。")]),t._v(" "),a("h5",{attrs:{id:"_1-2-3-4-tsfilemetadatasize"}},[a("a",{staticClass:"header-anchor",attrs:{href:"#_1-2-3-4-tsfilemetadatasize"}},[t._v("#")]),t._v(" 1.2.3.4 TsFileMetadataSize")]),t._v(" "),a("p",[t._v("在TsFileMetaData之后，有一个int值用来表示TsFileMetaData的大小。")]),t._v(" "),a("h4",{attrs:{id:"_1-2-4-magic-string"}},[a("a",{staticClass:"header-anchor",attrs:{href:"#_1-2-4-magic-string"}},[t._v("#")]),t._v(" 1.2.4 Magic String")]),t._v(" "),a("p",[t._v("TsFile 是以6个字节的magic string ("),a("code",[t._v("TsFile")]),t._v(") 作为结束.")]),t._v(" "),a("p",[t._v("恭喜您, 至此您已经完成了 TsFile 的探秘之旅，祝您玩儿的开心!")]),t._v(" "),a("h3",{attrs:{id:"_1-3-tsfile工具集"}},[a("a",{staticClass:"header-anchor",attrs:{href:"#_1-3-tsfile工具集"}},[t._v("#")]),t._v(" 1.3 TsFile工具集")]),t._v(" "),a("h4",{attrs:{id:"_1-3-1-iotdb-data-directory-快速概览工具"}},[a("a",{staticClass:"header-anchor",attrs:{href:"#_1-3-1-iotdb-data-directory-快速概览工具"}},[t._v("#")]),t._v(" 1.3.1 IoTDB Data Directory 快速概览工具")]),t._v(" "),a("p",[t._v("该工具的启动脚本会在编译 server 之后生成至 "),a("code",[t._v("server\\target\\iotdb-server-0.10.0\\tools\\tsfileToolSet")]),t._v(" 目录中。")]),t._v(" "),a("p",[t._v("使用方式:")]),t._v(" "),a("p",[t._v("For Windows:")]),t._v(" "),a("div",{staticClass:"language- line-numbers-mode"},[a("pre",{pre:!0,attrs:{class:"language-text"}},[a("code",[t._v(".\\print-iotdb-data-dir.bat <IoTDB数据文件夹路径，如果是多个文件夹用逗号分隔> (<输出结果的存储路径>) \n")])]),t._v(" "),a("div",{staticClass:"line-numbers-wrapper"},[a("span",{staticClass:"line-number"},[t._v("1")]),a("br")])]),a("p",[t._v("For Linux or MacOs:")]),t._v(" "),a("div",{staticClass:"language- line-numbers-mode"},[a("pre",{pre:!0,attrs:{class:"language-text"}},[a("code",[t._v("./print-iotdb-data-dir.sh <IoTDB数据文件夹路径，如果是多个文件夹用逗号分隔> (<输出结果的存储路径>) \n")])]),t._v(" "),a("div",{staticClass:"line-numbers-wrapper"},[a("span",{staticClass:"line-number"},[t._v("1")]),a("br")])]),a("p",[t._v("在Windows系统中的示例:")]),t._v(" "),a("div",{staticClass:"language- line-numbers-mode"},[a("pre",{pre:!0,attrs:{class:"language-text"}},[a("code",[t._v("D:\\incubator-iotdb\\server\\target\\iotdb-server-0.10.0-SNAPSHOT\\tools\\tsfileToolSet>.\\print-iotdb-data-dir.bat D:\\\\data\\data\n​````````````````````````\nStarting Printing the IoTDB Data Directory Overview\n​````````````````````````\noutput save path:IoTDB_data_dir_overview.txt\nTsFile data dir num:1\n21:17:38.841 [main] WARN org.apache.iotdb.tsfile.common.conf.TSFileDescriptor - Failed to find config file iotdb-engine.properties at classpath, use default configuration\n|==============================================================\n|D:\\\\data\\data\n|--sequence\n|  |--root.ln.wf01.wt01\n|  |  |--1575813520203-101-0.tsfile\n|  |  |--1575813520203-101-0.tsfile.resource\n|  |  |  |--device root.ln.wf01.wt01, start time 1 (1970-01-01T08:00:00.001+08:00[GMT+08:00]), end time 5 (1970-01-01T08:00:00.005+08:00[GMT+08:00])\n|  |  |--1575813520669-103-0.tsfile\n|  |  |--1575813520669-103-0.tsfile.resource\n|  |  |  |--device root.ln.wf01.wt01, start time 100 (1970-01-01T08:00:00.100+08:00[GMT+08:00]), end time 300 (1970-01-01T08:00:00.300+08:00[GMT+08:00])\n|  |  |--1575813521372-107-0.tsfile\n|  |  |--1575813521372-107-0.tsfile.resource\n|  |  |  |--device root.ln.wf01.wt01, start time 500 (1970-01-01T08:00:00.500+08:00[GMT+08:00]), end time 540 (1970-01-01T08:00:00.540+08:00[GMT+08:00])\n|--unsequence\n|  |--root.ln.wf01.wt01\n|  |  |--1575813521063-105-0.tsfile\n|  |  |--1575813521063-105-0.tsfile.resource\n|  |  |  |--device root.ln.wf01.wt01, start time 10 (1970-01-01T08:00:00.010+08:00[GMT+08:00]), end time 50 (1970-01-01T08:00:00.050+08:00[GMT+08:00])\n|==============================================================\n")])]),t._v(" "),a("div",{staticClass:"line-numbers-wrapper"},[a("span",{staticClass:"line-number"},[t._v("1")]),a("br"),a("span",{staticClass:"line-number"},[t._v("2")]),a("br"),a("span",{staticClass:"line-number"},[t._v("3")]),a("br"),a("span",{staticClass:"line-number"},[t._v("4")]),a("br"),a("span",{staticClass:"line-number"},[t._v("5")]),a("br"),a("span",{staticClass:"line-number"},[t._v("6")]),a("br"),a("span",{staticClass:"line-number"},[t._v("7")]),a("br"),a("span",{staticClass:"line-number"},[t._v("8")]),a("br"),a("span",{staticClass:"line-number"},[t._v("9")]),a("br"),a("span",{staticClass:"line-number"},[t._v("10")]),a("br"),a("span",{staticClass:"line-number"},[t._v("11")]),a("br"),a("span",{staticClass:"line-number"},[t._v("12")]),a("br"),a("span",{staticClass:"line-number"},[t._v("13")]),a("br"),a("span",{staticClass:"line-number"},[t._v("14")]),a("br"),a("span",{staticClass:"line-number"},[t._v("15")]),a("br"),a("span",{staticClass:"line-number"},[t._v("16")]),a("br"),a("span",{staticClass:"line-number"},[t._v("17")]),a("br"),a("span",{staticClass:"line-number"},[t._v("18")]),a("br"),a("span",{staticClass:"line-number"},[t._v("19")]),a("br"),a("span",{staticClass:"line-number"},[t._v("20")]),a("br"),a("span",{staticClass:"line-number"},[t._v("21")]),a("br"),a("span",{staticClass:"line-number"},[t._v("22")]),a("br"),a("span",{staticClass:"line-number"},[t._v("23")]),a("br"),a("span",{staticClass:"line-number"},[t._v("24")]),a("br"),a("span",{staticClass:"line-number"},[t._v("25")]),a("br"),a("span",{staticClass:"line-number"},[t._v("26")]),a("br")])]),a("h4",{attrs:{id:"_1-3-2-tsfileresource-打印工具"}},[a("a",{staticClass:"header-anchor",attrs:{href:"#_1-3-2-tsfileresource-打印工具"}},[t._v("#")]),t._v(" 1.3.2 TsFileResource 打印工具")]),t._v(" "),a("p",[t._v("该工具的启动脚本会在编译 server 之后生成至 "),a("code",[t._v("server\\target\\iotdb-server-0.10.0\\tools\\tsfileToolSet")]),t._v(" 目录中。")]),t._v(" "),a("p",[t._v("使用方式:")]),t._v(" "),a("p",[t._v("Windows:")]),t._v(" "),a("div",{staticClass:"language- line-numbers-mode"},[a("pre",{pre:!0,attrs:{class:"language-text"}},[a("code",[t._v(".\\print-tsfile-sketch.bat <TsFileResource文件夹路径>\n")])]),t._v(" "),a("div",{staticClass:"line-numbers-wrapper"},[a("span",{staticClass:"line-number"},[t._v("1")]),a("br")])]),a("p",[t._v("Linux or MacOs:")]),t._v(" "),a("div",{staticClass:"language- line-numbers-mode"},[a("pre",{pre:!0,attrs:{class:"language-text"}},[a("code",[t._v("./print-tsfile-sketch.sh <TsFileResource文件夹路径>\n")])]),t._v(" "),a("div",{staticClass:"line-numbers-wrapper"},[a("span",{staticClass:"line-number"},[t._v("1")]),a("br")])]),a("p",[t._v("在Windows系统中的示例:")]),t._v(" "),a("div",{staticClass:"language- line-numbers-mode"},[a("pre",{pre:!0,attrs:{class:"language-text"}},[a("code",[t._v("D:\\incubator-iotdb\\server\\target\\iotdb-server-0.10.0\\tools\\tsfileToolSet>.\\print-tsfile-resource-files.bat D:\\data\\data\\sequence\\root.vehicle\n​````````````````````````\nStarting Printing the TsFileResources\n​````````````````````````\n12:31:59.861 [main] WARN org.apache.iotdb.db.conf.IoTDBDescriptor - Cannot find IOTDB_HOME or IOTDB_CONF environment variable when loading config file iotdb-engine.properties, use default configuration\nanalyzing D:\\data\\data\\sequence\\root.vehicle\\1572496142067-101-0.tsfile ...\ndevice root.vehicle.d0, start time 3000 (1970-01-01T08:00:03+08:00[GMT+08:00]), end time 100999 (1970-01-01T08:01:40.999+08:00[GMT+08:00])\nanalyzing the resource file finished.\n")])]),t._v(" "),a("div",{staticClass:"line-numbers-wrapper"},[a("span",{staticClass:"line-number"},[t._v("1")]),a("br"),a("span",{staticClass:"line-number"},[t._v("2")]),a("br"),a("span",{staticClass:"line-number"},[t._v("3")]),a("br"),a("span",{staticClass:"line-number"},[t._v("4")]),a("br"),a("span",{staticClass:"line-number"},[t._v("5")]),a("br"),a("span",{staticClass:"line-number"},[t._v("6")]),a("br"),a("span",{staticClass:"line-number"},[t._v("7")]),a("br"),a("span",{staticClass:"line-number"},[t._v("8")]),a("br")])]),a("h4",{attrs:{id:"_1-3-3-tsfile-描述工具"}},[a("a",{staticClass:"header-anchor",attrs:{href:"#_1-3-3-tsfile-描述工具"}},[t._v("#")]),t._v(" 1.3.3 TsFile 描述工具")]),t._v(" "),a("p",[t._v("该工具的启动脚本会在编译 server 之后生成至 "),a("code",[t._v("server\\target\\iotdb-server-0.10.0\\tools\\tsfileToolSet")]),t._v(" 目录中。")]),t._v(" "),a("p",[t._v("使用方式:")]),t._v(" "),a("p",[t._v("Windows:")]),t._v(" "),a("div",{staticClass:"language- line-numbers-mode"},[a("pre",{pre:!0,attrs:{class:"language-text"}},[a("code",[t._v(".\\print-tsfile-sketch.bat <TsFile文件路径> (<输出结果的存储路径>) \n")])]),t._v(" "),a("div",{staticClass:"line-numbers-wrapper"},[a("span",{staticClass:"line-number"},[t._v("1")]),a("br")])]),a("ul",[a("li",[t._v('注意: 如果没有设置输出文件的存储路径, 将使用 "TsFile_sketch_view.txt" 做为默认值。')])]),t._v(" "),a("p",[t._v("Linux or MacOs:")]),t._v(" "),a("div",{staticClass:"language- line-numbers-mode"},[a("pre",{pre:!0,attrs:{class:"language-text"}},[a("code",[t._v("./print-tsfile-sketch.sh <TsFile文件路径> (<输出结果的存储路径>) \n")])]),t._v(" "),a("div",{staticClass:"line-numbers-wrapper"},[a("span",{staticClass:"line-number"},[t._v("1")]),a("br")])]),a("ul",[a("li",[t._v('注意: 如果没有设置输出文件的存储路径, 将使用 "TsFile_sketch_view.txt" 做为默认值。')])]),t._v(" "),a("p",[t._v("在mac系统中的示例:")]),t._v(" "),a("div",{staticClass:"language-$xslt line-numbers-mode"},[a("pre",{pre:!0,attrs:{class:"language-text"}},[a("code",[t._v("/incubator-iotdb/server/target/iotdb-server-0.10.0/tools/tsfileToolSet$ ./print-tsfile-sketch.sh test.tsfile\n​````````````````````````\nStarting Printing the TsFile Sketch\n​````````````````````````\nTsFile path:test.tsfile\nSketch save path:TsFile_sketch_view.txt\n-------------------------------- TsFile Sketch --------------------------------\nfile path: test.tsfile\nfile length: 33436\n\n            POSITION| CONTENT\n            --------  -------\n                   0| [magic head] TsFile\n                   6| [version number] 000002\n||||||||||||||||||||| [Chunk Group] of root.group_12.d2, num of Chunks:3\n                  12| [Chunk] of s_INT64e_RLE, numOfPoints:10000, time range:[1,10000], tsDataType:INT64, \n                      startTime: 1 endTime: 10000 count: 10000 [minValue:1,maxValue:1,firstValue:1,lastValue:1,sumValue:10000.0]\n                    |   [marker] 1\n                    | 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Group] of root.group_12.d2 ends\n                5799| [Version Info]\n                    |   [marker] 3\n                    |   [version] 102\n||||||||||||||||||||| [Chunk Group] of root.group_12.d1, num of Chunks:3\n                5808| [Chunk] of s_INT32e_PLAIN, numOfPoints:10000, time range:[1,10000], tsDataType:INT32, \n                      startTime: 1 endTime: 10000 count: 10000 [minValue:1,maxValue:1,firstValue:1,lastValue:1,sumValue:10000.0]\n                    |   [marker] 1\n                    |   [ChunkHeader]\n                    |   1 pages\n                8231| [Chunk] of s_INT32e_TS_2DIFF, numOfPoints:10000, time range:[1,10000], tsDataType:INT32, \n                      startTime: 1 endTime: 10000 count: 10000 [minValue:1,maxValue:1,firstValue:1,lastValue:1,sumValue:10000.0]\n                    |   [marker] 1\n                    |   [ChunkHeader]\n                    |   1 pages\n                8852| [Chunk] of s_INT32e_RLE, numOfPoints:10000, time range:[1,10000], tsDataType:INT32, \n                      startTime: 1 endTime: 10000 count: 10000 [minValue:1,maxValue:1,firstValue:1,lastValue:1,sumValue:10000.0]\n                    |   [marker] 1\n                    |   [ChunkHeader]\n                    |   1 pages\n                9399| [Chunk Group Footer]\n                    |   [marker] 0\n                    |   [deviceID] root.group_12.d1\n                    |   [dataSize] 3591\n                    |   [num of chunks] 3\n||||||||||||||||||||| [Chunk Group] of root.group_12.d1 ends\n                9432| [Version Info]\n                    |   [marker] 3\n                    |   [version] 102\n||||||||||||||||||||| [Chunk Group] of root.group_12.d0, num of Chunks:2\n                9441| [Chunk] of s_BOOLEANe_RLE, numOfPoints:10000, time range:[1,10000], tsDataType:BOOLEAN, \n                      startTime: 1 endTime: 10000 count: 10000 [firstValue:true,lastValue:true]\n                    |   [marker] 1\n                    |   [ChunkHeader]\n                    |   1 pages\n                9968| [Chunk] of s_BOOLEANe_PLAIN, numOfPoints:10000, time range:[1,10000], tsDataType:BOOLEAN, \n                      startTime: 1 endTime: 10000 count: 10000 [firstValue:true,lastValue:true]\n                    |   [marker] 1\n                    |   [ChunkHeader]\n                    |   1 pages\n               10961| [Chunk Group Footer]\n                    |   [marker] 0\n                    |   [deviceID] root.group_12.d0\n                    |   [dataSize] 1520\n                    |   [num of chunks] 2\n||||||||||||||||||||| [Chunk Group] of root.group_12.d0 ends\n               10994| [Version Info]\n                    |   [marker] 3\n                    |   [version] 102\n||||||||||||||||||||| [Chunk Group] of root.group_12.d5, num of Chunks:1\n               11003| [Chunk] of s_TEXTe_PLAIN, numOfPoints:10000, time range:[1,10000], tsDataType:TEXT, \n                      startTime: 1 endTime: 10000 count: 10000 [firstValue:version_test,lastValue:version_test]\n                    |   [marker] 1\n                    |   [ChunkHeader]\n                    |   3 pages\n               19278| [Chunk Group Footer]\n                    |   [marker] 0\n                    |   [deviceID] root.group_12.d5\n                    |   [dataSize] 8275\n                    |   [num of chunks] 1\n||||||||||||||||||||| [Chunk Group] of root.group_12.d5 ends\n               19311| [Version Info]\n                    |   [marker] 3\n                    |   [version] 102\n||||||||||||||||||||| [Chunk Group] of root.group_12.d4, num of Chunks:4\n               19320| [Chunk] of s_DOUBLEe_PLAIN, numOfPoints:10000, time range:[1,10000], tsDataType:DOUBLE, \n                      startTime: 1 endTime: 10000 count: 10000 [minValue:1.1,maxValue:1.1,firstValue:1.1,lastValue:1.1,sumValue:11000.00000000123]\n                    |   [marker] 1\n                    |   [ChunkHeader]\n                    |   2 pages\n               23740| [Chunk] of s_DOUBLEe_TS_2DIFF, numOfPoints:10000, time range:[1,10000], tsDataType:DOUBLE, \n                      startTime: 1 endTime: 10000 count: 10000 [minValue:1.1,maxValue:1.1,firstValue:1.1,lastValue:1.1,sumValue:11000.000000002045]\n                    |   [marker] 1\n                    |   [ChunkHeader]\n                    |   1 pages\n               24414| [Chunk] of s_DOUBLEe_GORILLA, numOfPoints:10000, time range:[1,10000], tsDataType:DOUBLE, \n                      startTime: 1 endTime: 10000 count: 10000 [minValue:1.1,maxValue:1.1,firstValue:1.1,lastValue:1.1,sumValue:11000.000000002045]\n                    |   [marker] 1\n                    |   [ChunkHeader]\n                    |   1 pages\n               25054| [Chunk] of s_DOUBLEe_RLE, numOfPoints:10000, time range:[1,10000], tsDataType:DOUBLE, \n                      startTime: 1 endTime: 10000 count: 10000 [minValue:1.1,maxValue:1.1,firstValue:1.1,lastValue:1.1,sumValue:11000.000000001224]\n                    |   [marker] 1\n                    |   [ChunkHeader]\n                    |   2 pages\n               25717| [Chunk Group Footer]\n                    |   [marker] 0\n                    |   [deviceID] root.group_12.d4\n                    |   [dataSize] 6397\n                    |   [num of chunks] 4\n||||||||||||||||||||| [Chunk Group] of root.group_12.d4 ends\n               25750| [Version Info]\n                    |   [marker] 3\n                    |   [version] 102\n||||||||||||||||||||| [Chunk Group] of root.group_12.d3, num of Chunks:4\n               25759| [Chunk] of s_FLOATe_GORILLA, numOfPoints:10000, time range:[1,10000], tsDataType:FLOAT, \n                      startTime: 1 endTime: 10000 count: 10000 [minValue:1.1,maxValue:1.1,firstValue:1.1,lastValue:1.1,sumValue:11000.00023841858]\n                    |   [marker] 1\n                    |   [ChunkHeader]\n      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