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Description

Microsoft Graph Engine is a distributed in-memory data processing engine, underpinned by a strongly-typed in-memory key-value store and a general distributed computation engine.

This repository contains the source code of Graph Engine and its graph query language -- Language Integrated Knowledge Query (LIKQ). LIKQ is a versatile graph query language on top of Graph Engine. It combines the capability of fast graph exploration and the flexibility of lambda expression: server-side computations can be expressed in lambda expressions, embedded in LIKQ, and executed on the server side during graph traversal. LIKQ is powering Academic Graph Search API, which is part of Microsoft Cognitive Services.

Programming language: C#
License: GNU General Public License v3.0 or later
Tags: Concurrency     Azure     Compiler     Storage     Distributed Computing     graph    

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README

Graph Engine - Open Source

- Windows Multi Targeting Ubuntu 16.04 .NET Core
Build
Tests _ _
Stress _ _

This repository contains the source code of Graph Engine and its graph query language -- Language Integrated Knowledge Query (LIKQ).

Microsoft Graph Engine is a distributed in-memory data processing engine, underpinned by a strongly-typed in-memory key-value store and a general-purpose distributed computation engine.

LIKQ is a versatile graph query language atop Graph Engine. It combines the capability of fast graph exploration with the flexibility of lambda expression. Server-side computations can be expressed in lambda expressions, embedded in LIKQ, and executed on Graph Engine servers during graph traversal.

How to contribute

If you are interested in contributing to Graph Engine, please fork the repository and submit pull requests to the master branch.

Pull requests, issue reports, and suggestions are welcome.

Please submit bugs and feature requests as GitHub Issues.

Getting started with Graph Engine

NuGet packages and Visual Studio extension

NuGet packages Graph Engine Core and LIKQ are available in the NuGet Gallery.

If you develop Graph Engine applications using Visual Studio on Windows, Graph Engine VSExtension can be used to facilitate the development work.

Building on Windows

Install Visual Studio 2017 or 2019 with the following components selected:

  • .NET desktop development
    • .NET Framework 4 -- 4.6 development tools
  • Desktop development with C++
    • Windows 10 SDK
    • Windows 8.1 SDK and UCRT SDK
  • Visual Studio extension development
  • .NET Core SDK 3.1
  • cmake

.NET Core SDK and cmake can alternatively be installed using their standalone installers.

The Windows build will generate multi-targeting nuget packages. Open a powershell window, run tools/build.ps1 for Visual Studio 2017 or tools/build.ps1 -VS2019 for Visual Studio 2019.

The Linux native assemblies will also be packaged (pre-built at lib) to allow the Windows build to work for Linux .Net Core as well.

Building on Linux

Install libunwind8, g++, cmake and libssl-dev. For example, run sudo apt install libunwind8 g++ cmake libssl-dev for Ubuntu.

Install .NET Core 3.1 and execute bash tools/build.sh.

The Windows native assemblies will also be packaged so that the Linux build will work for Windows .Net Core as well.

Note: Because .Net Framework is Windows-only, the packages built on Linux only support .Net Core. The build script is tested only on Ubuntu 16.04, Ubuntu 18.04, and Ubuntu 20.04.

How to use the built Graph Engine packages

Nuget packages will be built as build/GraphEngine**._version_.nupkg. The folder build/ will be registered as a local NuGet repository and the local package cache for GraphEngine.Core will be cleared. After the packages are built, run dotnet restore to use the newly built package.

Run your first Graph Engine app

Go to the samples/Friends/Friends folder, execute dotnet restore and dotnet run to run the sample project.

License

Copyright (c) Microsoft Corporation. All rights reserved.

Licensed under the [MIT][license] License.

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*Note that all licence references and agreements mentioned in the Graph Engine README section above are relevant to that project's source code only.