apache / iotdb

English | 中文 IoTDB Overview IoTDB (Internet of Things Database) is a data management system for time series data, which provides users with specific services, including data collection, storage and analysis. Due to its lightweight structure, high performance and usable features, together with its seamless integration with the Hadoop and Spark ecosystem, IoTDB meets the requirements of massive dataset storage, high throughput data input, and complex data analysis in the industrial IoT field. Click for More Information IoTDB depends on TsFile which is a columnar storage file format designed for time series data. The branch of TsFile project is used to deploy SNAPSHOT version for IoTDB project. Main Features The main features of IoTDB are as follows: • Flexible deployment strategy. IoTDB provides users with a one-click installation tool on either the cloud platform or the terminal devices, and a data synchronization tool bridging the data on cloud platform and terminals. • Low cost on hardware. IoTDB can reach a high compression ratio of disk storage. • Efficient directory structure. IoTDB supports efficient organization for complex time series data structures from intelligent networking devices, organization for time series data from devices of the same type, and fuzzy searching strategy for massive and complex directory of time series data. • 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. • Rich query semantics. IoTDB supports time alignment for time series data across devices and measurements, computation in time series field (frequency domain transformation) and rich aggregation function support in time dimension. • Easy to get started. IoTDB supports SQL-like language, JDBC standard API and import/export tools which are easy to use. • Seamless integration with state-of-the-practice Open Source Ecosystem. IoTDB supports analysis ecosystems, such as Hadoop and Spark, as well as visualization tools, such as Grafana. For the latest information about IoTDB, please visit IoTDB official website. If you encounter any problems or identify any bugs while using IoTDB, please report an issue in Jira. Outline • IoTDB • Overview • Main Features • 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 cli • Usage of CSV Import and Export Tool Quick Start This short guide will walk you through the basic process of using IoTDB. For a more detailed introduction, please visit our website's User Guide. Prerequisites To use IoTDB, you need to have: • Java >= 1.8 (1.8 to 25 are verified. Please make sure the environment path has been set accordingly). • Maven >= 3.6 (If you want to compile and install IoTDB from source code). • Set the max open files num as 65535 to avoid the "too many open files" error. • (Optional) Set the somaxconn as 65535 to avoid "connection reset" error when the system is under high load. > ⚠️ **Important: System Resource Limits** > > IoTDB requires sufficient system resource limits to start correctly. > If these limits are not configured, IoTDB may fail to start or emit warnings such as > or in the logs. > > **Linux / macOS** > > > **Docker Users** > When running IoTDB in Docker, these limits must be applied on the **host machine** > or explicitly passed to the container: > > > **Windows Users** > These commands are not applicable on Windows. > Please follow the Windows installation steps below and ensure sufficient system resources. Linux (This guide is based on an installation of Ubuntu 22.04.) Git Make sure is installed, if it's missing, simply install it via: sudo apt install git Java Make sure is installed, if it's missing, simply install it via: sudo apt install default-jdk Flex sudo apt install flex Bison sudo apt install bison Boost sudo apt install libboost-all-dev OpenSSL header files Usually OpenSSL is already installed, however it's missing the header files we need to compile. So ensure these are installed: sudo apt install libssl-dev Mac OS Git First ensure works. Usually on a new Mac, as soon as you simply type in a window, a popup will come up and ask if you want to finish installing the Mac developer tools. Just say yes. As soon as this is finished, you are free to use . Homebrew Then install - If this hasn't been installed yet, as we are going to be installing everything using . /bin/bash -c "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/HEAD/install.sh)" Java As soon as that's done install , if this hasn't been installed yet: brew install java Depending on your version of Homebrew, it will tell you to do one of the following (depending on the type of processor in your device). Mainly on the Intel-based models: sudo ln -sfn /usr/local/opt/openjdk/libexec/openjdk.jdk /Library/Java/JavaVirtualMachines/openjdk.jdk Mainly on the ARM-based models: sudo ln -sfn /opt/homebrew/opt/openjdk/libexec/openjdk.jdk /Library/Java/JavaVirtualMachines/openjdk.jdk CPP Prerequisites Building requires us to add two more dependencies to the picture. This however is only needed when enabling the profile: brew install boost brew install bison brew install openssl Windows Chocolatey Then install - If this hasn't been installed yet, as we are going to be installing everything using . https://chocolatey.org/install Git choco install git.install Java choco install openjdk Visual Studio 19 2022 choco install visualstudio2022community choco install visualstudio2022buildtools choco install visualstudio2022-workload-nativedesktop Flex / Bison choco install winflexbison Boost choco install boost-msvc-14.2 OpenSSL choco install openssl Installation IoTDB provides three installation meth…