1 Star 0 Fork 42

闲.大赋(李家智) / incubator-iotdb

加入 Gitee
与超过 1200万 开发者一起发现、参与优秀开源项目,私有仓库也完全免费 :)
免费加入
克隆/下载
贡献代码
同步代码
取消
提示: 由于 Git 不支持空文件夾,创建文件夹后会生成空的 .keep 文件
Loading...
README
Apache-2.0

IoTDB

Build Status codecov GitHub release License IoTDB Website

Overview

IoTDB (Internet of Things Database) is an integrated data management engine designed for time series data, which can provide users specific services for data collection, storage and analysis. Due to its light weight structure, high performance and usable features together with its intense integration with Hadoop and Spark ecology, IoTDB meets the requirements of massive dataset storage, high-speed data input and complex data analysis in the IoT industrial field.

Main Features

IoTDB's features are as following:

  1. Flexible deployment. IoTDB provides users one-click installation tool on the cloud, once-decompressed-used terminal tool and the bridge tool between cloud platform and terminal tool (Data Synchronization Tool).
  2. Low cost on hardware. IoTDB can reach a high compression ratio of disk storage
  3. Efficient directory structure. IoTDB supports efficient organization for complex time series data structure from intelligent networking devices, organization for time series data from devices of the same type, fuzzy searching strategy for massive and complex directory of time series data.
  4. High-throughput read and write. IoTDB supports millions of low-power devices' strong connection data access, high-speed data read and write for intelligent networking devices and mixed devices mentioned above.
  5. Rich query semantics. IoTDB supports time alignment for time series data across devices and sensors, computation in time series field (frequency domain transformation) and rich aggregation function support in time dimension.
  6. Easy to get start. IoTDB supports SQL-Like language, JDBC standard API and import/export tools which is easy to use.
  7. Intense integration with Open Source Ecosystem. IoTDB supports Hadoop, Spark, etc. analysis ecosystems and Grafana visualization tool.

For the latest information about IoTDB, please visit our IoTDB official website.

Outline

  • Quick Start
  • Prerequisites
  • Installation
    • Build from source
      • Configurations
  • Start
    • Start IoTDB
    • Use IoTDB
      • Use Cli
      • Basic commands for IoTDB
    • Stop IoTDB
  • Only build server
  • Only build client
  • Usage of import-csv.sh
    • Create metadata
    • An Example of import csv file
    • Run import shell
    • Error data file
  • Usage of export-csv.sh
    • Run export shell
    • Input query

Quick Start

This short guide will walk you through the basic process of using IoTDB. For a more-complete guide, please visit our website's User Guide.

Prerequisites

To use IoTDB, you need to have:

  1. Java >= 1.8 (1.8, 11, and 13 are verified. Please make sure the environment path has been set)
  2. Maven >= 3.1 (If you want to compile and install IoTDB from source code)
  3. Set the max open files num as 65535 to avoid "too many open files" problem.

Installation

IoTDB provides you three installation methods, you can refer to the following suggestions, choose one of them:

  • Installation from source code. If you need to modify the code yourself, you can use this method.
  • Installation from binary files. Download the binary files from the official website. This is the recommended method, in which you will get a binary released package which is out-of-the-box.(Comming Soon...)
  • Using Docker:The path to the dockerfile is https://github.com/apache/incubator-iotdb/blob/master/docker/Dockerfile

Here in the Quick Start, we give a brief introduction of using source code to install IoTDB. For further information, please refer to Chapter 4 of the User Guide.

Build from source

You can download the source code from:

git clone https://github.com/apache/incubator-iotdb.git

Under the root path of incubator-iotdb:

> mvn clean package -DskipTests

Then the binary version (including both server and client) can be found at distribution/target/apache-iotdb-{project.version}-incubating-bin.zip

NOTE: Directories "service-rpc/target/generated-sources/thrift" and "server/target/generated-sources/antlr3" need to be added to sources roots to avoid compilation errors in IDE.

Configurations

configuration files are under "conf" folder

  • environment config module (iotdb-env.bat, iotdb-env.sh),
  • system config module (tsfile-format.properties, iotdb-engine.properties)
  • log config module (logback.xml).

For more, see Chapter3: Server and Chapter4: Client in detail.

Start

You can go through the following step to test the installation, if there is no error after execution, the installation is completed.

Start IoTDB

Users can start IoTDB by the start-server script under the sbin folder.

# Unix/OS X
> sbin/start-server.sh

# Windows
> sbin\start-server.bat

Use IoTDB

Use Cli

IoTDB offers different ways to interact with server, here we introduce basic steps of using Cli tool to insrert and query data.

After installing IoTDB, there is a default user 'root', its default password is also 'root'. Users can use this default user to login Cli to use IoTDB. The startup script of Cli is the start-client script in the folder sbin. When executing the script, user should assign IP, PORT, USER_NAME and PASSWORD. The default parameters are "-h 127.0.0.1 -p 6667 -u root -pw -root".

Here is the command for starting the Cli:

# Unix/OS X
> sbin/start-client.sh -h 127.0.0.1 -p 6667 -u root -pw root

# Windows
> sbin\start-client.bat -h 127.0.0.1 -p 6667 -u root -pw root

The command line client is interactive so if everything is ready you should see the welcome logo and statements:

 _____       _________  ______   ______
|_   _|     |  _   _  ||_   _ `.|_   _ \
  | |   .--.|_/ | | \_|  | | `. \ | |_) |
  | | / .'`\ \  | |      | |  | | |  __'.
 _| |_| \__. | _| |_    _| |_.' /_| |__) |
|_____|'.__.' |_____|  |______.'|_______/  version x.x.x


IoTDB> login successfully
IoTDB>

Basic commands for IoTDB

Now, let us introduce the way of creating timeseries, inserting data and querying data.

The data in IoTDB is organized as timeseries, in each timeseries there are some data-time pairs, and every timeseries is owned by a storage group. Before defining a timeseries, we should difine a storage group using SET STORAGE GROUP, and here is an example:

IoTDB> SET STORAGE GROUP TO root.ln

We can also use SHOW STORAGE GROUP to check created storage group:

IoTDB> SHOW STORAGE GROUP
+-----------------------------------+
|                      Storage Group|
+-----------------------------------+
|                            root.ln|
+-----------------------------------+
storage group number = 1

After the storage group is set, we can use CREATE TIMESERIES to create new timeseries. When we create a timeseries, we should define its data type and the encoding scheme. We create two timeseries as follow:

IoTDB> CREATE TIMESERIES root.ln.wf01.wt01.status WITH DATATYPE=BOOLEAN, ENCODING=PLAIN
IoTDB> CREATE TIMESERIES root.ln.wf01.wt01.temperature WITH DATATYPE=FLOAT, ENCODING=RLE

Inorder to query the specific timeseries, we can use SHOW TIMESERIES . represent the path of the timeseries. Its default value is null, which means quering all the timeseries in the system(the same as using "SHOW TIMESERIES root"). Here are the examples:

  1. Querying all timeseries in the system:
IoTDB> SHOW TIMESERIES
+-------------------------------+---------------+--------+--------+
|                     Timeseries|  Storage Group|DataType|Encoding|
+-------------------------------+---------------+--------+--------+
|       root.ln.wf01.wt01.status|        root.ln| BOOLEAN|   PLAIN|
|  root.ln.wf01.wt01.temperature|        root.ln|   FLOAT|     RLE|
+-------------------------------+---------------+--------+--------+
Total timeseries number = 2
  1. Querying a specific timeseries(root.ln.wf01.wt01.status):
IoTDB> SHOW TIMESERIES root.ln.wf01.wt01.status
+------------------------------+--------------+--------+--------+
|                    Timeseries| Storage Group|DataType|Encoding|
+------------------------------+--------------+--------+--------+
|      root.ln.wf01.wt01.status|       root.ln| BOOLEAN|   PLAIN|
+------------------------------+--------------+--------+--------+
Total timeseries number = 1

Insert timeseries data is the basic operation of IoTDB, you can use ‘INSERT’ command to finish this. Before inserting you should assign the timestamp and the suffix path name:

IoTDB> INSERT INTO root.ln.wf01.wt01(timestamp,status) values(100,true);
IoTDB> INSERT INTO root.ln.wf01.wt01(timestamp,status,temperature) values(200,false,20.71)

The data we’ve just inserted displays like this:

IoTDB> SELECT status FROM root.ln.wf01.wt01
+-----------------------+------------------------+
|                   Time|root.ln.wf01.wt01.status|
+-----------------------+------------------------+
|1970-01-01T08:00:00.100|                    true|
|1970-01-01T08:00:00.200|                   false|
+-----------------------+------------------------+
Total line number = 2

We can also query several timeseries data at once like this:

IoTDB> SELECT * FROM root.ln.wf01.wt01
+-----------------------+--------------------------+-----------------------------+
|                   Time|  root.ln.wf01.wt01.status|root.ln.wf01.wt01.temperature|
+-----------------------+--------------------------+-----------------------------+
|1970-01-01T08:00:00.100|                      true|                         null|
|1970-01-01T08:00:00.200|                     false|                        20.71|
+-----------------------+--------------------------+-----------------------------+
Total line number = 2

The commands to exit the Cli is:

IoTDB> quit
or
IoTDB> exit

For more on what commands are supported by IoTDB SQL, see Chapter 5: IoTDB SQL Documentation.

Stop IoTDB

The server can be stopped with ctrl-C or the following script:

# Unix/OS X
> sbin/stop-server.sh

# Windows
> sbin\stop-server.bat

Only build server

Under the root path of incubator-iotdb:

> mvn clean package -pl server -am -DskipTests

After build, the IoTDB server will be at the folder "server/target/iotdb-server-{project.version}".

Only build client

Under the root path of incubator-iotdb:

> mvn clean package -pl client -am -DskipTests

After build, the IoTDB client will be at the folder "client/target/iotdb-client-{project.version}".

Usage of import-csv.sh

Create metadata

SET STORAGE GROUP TO root.fit.d1;
SET STORAGE GROUP TO root.fit.d2;
SET STORAGE GROUP TO root.fit.p;
CREATE TIMESERIES root.fit.d1.s1 WITH DATATYPE=INT32,ENCODING=RLE;
CREATE TIMESERIES root.fit.d1.s2 WITH DATATYPE=TEXT,ENCODING=PLAIN;
CREATE TIMESERIES root.fit.d2.s1 WITH DATATYPE=INT32,ENCODING=RLE;
CREATE TIMESERIES root.fit.d2.s3 WITH DATATYPE=INT32,ENCODING=RLE;
CREATE TIMESERIES root.fit.p.s1 WITH DATATYPE=INT32,ENCODING=RLE;

An example of import csv file

Time,root.fit.d1.s1,root.fit.d1.s2,root.fit.d2.s1,root.fit.d2.s3,root.fit.p.s1
1,100,'hello',200,300,400
2,500,'world',600,700,800
3,900,'IoTDB',1000,1100,1200

Run import shell

# Unix/OS X
> tools/import-csv.sh -h <ip> -p <port> -u <username> -pw <password> -f <xxx.csv>

# Windows
> tools\import-csv.bat -h <ip> -p <port> -u <username> -pw <password> -f <xxx.csv>

Error data file

csvInsertError.error

Usage of export-csv.sh

Run export shell

# Unix/OS X
> tools/export-csv.sh -h <ip> -p <port> -u <username> -pw <password> -td <directory> [-tf <time-format>]

# Windows
> tools\export-csv.bat -h <ip> -p <port> -u <username> -pw <password> -td <directory> [-tf <time-format>]

Input query

select * from root.fit.d1
Apache License Version 2.0, January 2004 http://www.apache.org/licenses/ TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION 1. Definitions. "License" shall mean the terms and conditions for use, reproduction, and distribution as defined by Sections 1 through 9 of this document. "Licensor" shall mean the copyright owner or entity authorized by the copyright owner that is granting the License. "Legal Entity" shall mean the union of the acting entity and all other entities that control, are controlled by, or are under common control with that entity. For the purposes of this definition, "control" means (i) the power, direct or indirect, to cause the direction or management of such entity, whether by contract or otherwise, or (ii) ownership of fifty percent (50%) or more of the outstanding shares, or (iii) beneficial ownership of such entity. "You" (or "Your") shall mean an individual or Legal Entity exercising permissions granted by this License. "Source" form shall mean the preferred form for making modifications, including but not limited to software source code, documentation source, and configuration files. "Object" form shall mean any form resulting from mechanical transformation or translation of a Source form, including but not limited to compiled object code, generated documentation, and conversions to other media types. "Work" shall mean the work of authorship, whether in Source or Object form, made available under the License, as indicated by a copyright notice that is included in or attached to the work (an example is provided in the Appendix below). "Derivative Works" shall mean any work, whether in Source or Object form, that is based on (or derived from) the Work and for which the editorial revisions, annotations, elaborations, or other modifications represent, as a whole, an original work of authorship. For the purposes of this License, Derivative Works shall not include works that remain separable from, or merely link (or bind by name) to the interfaces of, the Work and Derivative Works thereof. "Contribution" shall mean any work of authorship, including the original version of the Work and any modifications or additions to that Work or Derivative Works thereof, that is intentionally submitted to Licensor for inclusion in the Work by the copyright owner or by an individual or Legal Entity authorized to submit on behalf of the copyright owner. For the purposes of this definition, "submitted" means any form of electronic, verbal, or written communication sent to the Licensor or its representatives, including but not limited to communication on electronic mailing lists, source code control systems, and issue tracking systems that are managed by, or on behalf of, the Licensor for the purpose of discussing and improving the Work, but excluding communication that is conspicuously marked or otherwise designated in writing by the copyright owner as "Not a Contribution." "Contributor" shall mean Licensor and any individual or Legal Entity on behalf of whom a Contribution has been received by Licensor and subsequently incorporated within the Work. 2. Grant of Copyright License. Subject to the terms and conditions of this License, each Contributor hereby grants to You a perpetual, worldwide, non-exclusive, no-charge, royalty-free, irrevocable copyright license to reproduce, prepare Derivative Works of, publicly display, publicly perform, sublicense, and distribute the Work and such Derivative Works in Source or Object form. 3. Grant of Patent License. Subject to the terms and conditions of this License, each Contributor hereby grants to You a perpetual, worldwide, non-exclusive, no-charge, royalty-free, irrevocable (except as stated in this section) patent license to make, have made, use, offer to sell, sell, import, and otherwise transfer the Work, where such license applies only to those patent claims licensable by such Contributor that are necessarily infringed by their Contribution(s) alone or by combination of their Contribution(s) with the Work to which such Contribution(s) was submitted. If You institute patent litigation against any entity (including a cross-claim or counterclaim in a lawsuit) alleging that the Work or a Contribution incorporated within the Work constitutes direct or contributory patent infringement, then any patent licenses granted to You under this License for that Work shall terminate as of the date such litigation is filed. 4. Redistribution. You may reproduce and distribute copies of the Work or Derivative Works thereof in any medium, with or without modifications, and in Source or Object form, provided that You meet the following conditions: (a) You must give any other recipients of the Work or Derivative Works a copy of this License; and (b) You must cause any modified files to carry prominent notices stating that You changed the files; and (c) You must retain, in the Source form of any Derivative Works that You distribute, all copyright, patent, trademark, and attribution notices from the Source form of the Work, excluding those notices that do not pertain to any part of the Derivative Works; and (d) If the Work includes a "NOTICE" text file as part of its distribution, then any Derivative Works that You distribute must include a readable copy of the attribution notices contained within such NOTICE file, excluding those notices that do not pertain to any part of the Derivative Works, in at least one of the following places: within a NOTICE text file distributed as part of the Derivative Works; within the Source form or documentation, if provided along with the Derivative Works; or, within a display generated by the Derivative Works, if and wherever such third-party notices normally appear. The contents of the NOTICE file are for informational purposes only and do not modify the License. You may add Your own attribution notices within Derivative Works that You distribute, alongside or as an addendum to the NOTICE text from the Work, provided that such additional attribution notices cannot be construed as modifying the License. You may add Your own copyright statement to Your modifications and may provide additional or different license terms and conditions for use, reproduction, or distribution of Your modifications, or for any such Derivative Works as a whole, provided Your use, reproduction, and distribution of the Work otherwise complies with the conditions stated in this License. 5. Submission of Contributions. Unless You explicitly state otherwise, any Contribution intentionally submitted for inclusion in the Work by You to the Licensor shall be under the terms and conditions of this License, without any additional terms or conditions. Notwithstanding the above, nothing herein shall supersede or modify the terms of any separate license agreement you may have executed with Licensor regarding such Contributions. 6. Trademarks. This License does not grant permission to use the trade names, trademarks, service marks, or product names of the Licensor, except as required for reasonable and customary use in describing the origin of the Work and reproducing the content of the NOTICE file. 7. Disclaimer of Warranty. Unless required by applicable law or agreed to in writing, Licensor provides the Work (and each Contributor provides its Contributions) on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied, including, without limitation, any warranties or conditions of TITLE, NON-INFRINGEMENT, MERCHANTABILITY, or FITNESS FOR A PARTICULAR PURPOSE. You are solely responsible for determining the appropriateness of using or redistributing the Work and assume any risks associated with Your exercise of permissions under this License. 8. Limitation of Liability. In no event and under no legal theory, whether in tort (including negligence), contract, or otherwise, unless required by applicable law (such as deliberate and grossly negligent acts) or agreed to in writing, shall any Contributor be liable to You for damages, including any direct, indirect, special, incidental, or consequential damages of any character arising as a result of this License or out of the use or inability to use the Work (including but not limited to damages for loss of goodwill, work stoppage, computer failure or malfunction, or any and all other commercial damages or losses), even if such Contributor has been advised of the possibility of such damages. 9. Accepting Warranty or Additional Liability. While redistributing the Work or Derivative Works thereof, You may choose to offer, and charge a fee for, acceptance of support, warranty, indemnity, or other liability obligations and/or rights consistent with this License. However, in accepting such obligations, You may act only on Your own behalf and on Your sole responsibility, not on behalf of any other Contributor, and only if You agree to indemnify, defend, and hold each Contributor harmless for any liability incurred by, or claims asserted against, such Contributor by reason of your accepting any such warranty or additional liability. END OF TERMS AND CONDITIONS APPENDIX: How to apply the Apache License to your work. To apply the Apache License to your work, attach the following boilerplate notice, with the fields enclosed by brackets "[]" replaced with your own identifying information. (Don't include the brackets!) The text should be enclosed in the appropriate comment syntax for the file format. We also recommend that a file or class name and description of purpose be included on the same "printed page" as the copyright notice for easier identification within third-party archives. Copyright [yyyy] [name of copyright owner] Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except in compliance with the License. You may obtain a copy of the License at http://www.apache.org/licenses/LICENSE-2.0 Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the specific language governing permissions and limitations under the License. ================================================================ APACHE IOTDB SUBCOMPONENTS: The following classes are modified from Apache Hive, which is under Apache License 2.0: ./server/src/main/java/org/apache/iotdb/db/sql/parse/AstErrorNode.java ./server/src/main/java/org/apache/iotdb/db/sql/parse/AstNode.java ./server/src/main/java/org/apache/iotdb/db/sql/parse/AstNodeOrigin.java ./server/src/main/java/org/apache/iotdb/db/sql/parse/Node.java ./server/src/main/java/org/apache/iotdb/db/sql/parse/ParseDriver.java ./server/src/main/java/org/apache/iotdb/db/sql/parse/ParseError.java ./server/src/main/java/org/apache/iotdb/db/sql/parse/ParseException.java ./server/src/main/java/org/apache/iotdb/db/sql/parse/ParseUtils.java ------------ The following class is copied from maven-wrapper (https://github.com/takari/maven-wrapper), which is under Apache License 2.0: ./.mvn/wrapper/MavenWrapperDownloader.java ------------ The following class is modified from Apache commons-collections ./tsfile/src/main/java/org/apache/iotdb/tsfile/utils/Murmur128Hash.java Relevant pr is: https://github.com/apache/commons-collections/pull/83/

简介

Apache IoTDB 是针对时间序列数据收集、存储与分析一体化的数据管理引擎。它具有体量轻、性能高、易使用的特点,完美对接Hadoop与Spark生态,适用于工业物联网应用中海量时间序列数据高速写入和复杂分析查询的需求。 展开 收起
Java
Apache-2.0
取消

发行版

暂无发行版

贡献者

全部

近期动态

加载更多
不能加载更多了
Java
1
https://gitee.com/xiandafu/incubator-iotdb.git
git@gitee.com:xiandafu/incubator-iotdb.git
xiandafu
incubator-iotdb
incubator-iotdb
master

搜索帮助

14c37bed 8189591 565d56ea 8189591