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This repository was archived by the owner on Mar 23, 2026. It is now read-only.
Copy file name to clipboardExpand all lines: README.md
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## Welcome to the Blazegraph Database
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Blazegraph™ DB is a ultra high-performance graph database supporting Blueprints and RDF/SPARQL APIs. It supports up to 50 Billion edges on a single machine and has a enterprise features for High Availability, Scale-out architecture, and [GPU Acceleration](https://www.blazegraph.com/product/gpu-accelerated/). It is in production use for Fortune 500 customers such as EMC, Autodesk, and many others. It is supporting key [Precision Medicine](http://www.syapse.com) applications and has wide-spread usage for life science applications. It is used extensively to support Cyber anaytics in commercial and government applications. It powers the Wikimedia Foundation's [Wikidata Query Service](https://query.wikidata.org/). See the latest [Feature Matrix](http://www.blazegraph.com/product/).
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## Welcome to the Blazegraph Database ##
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Blazegraph™ DB is a ultra high-performance graph database supporting Blueprints and RDF/SPARQL APIs. It supports up to 50 Billion edges on a single machine. It is in production use for Fortune 500 customers such as EMC, Autodesk, and many others. It is supporting key [Precision Medicine](http://www.syapse.com) applications and has wide-spread usage for life science applications. It is used extensively to support Cyber anaytics in commercial and government applications. It powers the Wikimedia Foundation's [Wikidata Query Service](https://query.wikidata.org/).
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Please also visit us at our: [website](https://www.blazegraph.com), [wiki](https://wiki.blazegraph.com), and [blog](https://blog.blazegraph.com/).
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Find an issue? Need help? See [JIRA](https://jira.blazegraph.com) or purchase [Support](https://www.blazegraph.com/buy).
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Find an issue? Need help? See [JIRA](https://jira.blazegraph.com).
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Reporting a security issue: [Security Reporting](Security.md).
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###Quick Start with the Executable Jar
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###Quick Start with the Executable Jar ###
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Up and running with Blazegraph in under 30 seconds: [Quick Start](https://wiki.blazegraph.com/wiki/index.php/Quick_Start).
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### Deploying in Production ###
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1.**Setup a reverse-proxy configuration with authentication**: You can setup an http or https reverse proxy configuration that has authentication and forward requests to the local Blazegraph instance (typically running on localhost:9999). This is a good option with [Nginx](https://community.openhab.org/t/using-nginx-reverse-proxy-authentication-and-https/14542) and [Apache](https://stackoverflow.com/questions/5011102/apache-reverse-proxy-with-basic-authentication).
If you enable authentication and expose the Blazegraph workbench, you should also take steps to protect against CSRF. Tomcat8 provides a (CSRF filter)[https://tomcat.apache.org/tomcat-8.0-doc/config/filter.html#CSRF_Prevention_Filter_for_REST_APIs] that can be configured. For Jetty, if you configure authentication the default value for `SecurityHandler.setSessionRenewedOnAuthentication(true)` can also be used. CSRF protection may require REST clients to implement HTTP headers to be used to interact with the service.
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If you enable authentication and expose the Blazegraph workbench, you should also take steps to protect against CSRF. Tomcat8 provides a [CSRF filter](https://tomcat.apache.org/tomcat-8.0-doc/config/filter.html#CSRF_Prevention_Filter_for_REST_APIs) that can be configured. For Jetty, if you configure authentication the default value for `SecurityHandler.setSessionRenewedOnAuthentication(true)` can also be used. CSRF protection may require REST clients to implement HTTP headers to be used to interact with the service.
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### Building the code
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### Building the code ###
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As a quick start, run `mvn install -DskipTests` or the utility script `./scripts/mavenInstall.sh `.
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For more detailed maven information see the [wiki](https://wiki.blazegraph.com/wiki/index.php/MavenNotes).
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###Samples and Examples
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If you build with Java 7, you need to add Maven options for TLS 1.2, i.e. `export MAVEN_OPTS="-Dhttps.protocols=TLSv1.2"`.
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### Samples and Examples ###
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There are code samples and examples to get started with the Blazegraph Database [here] (https://github.com/blazegraph/blazegraph-samples). Tinkerpop3 examples are included directly within the Tinkerpop3 repository per below.
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###Javadocs
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###Javadocs ###
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Click here to view the lastest [API Javadocs](https://blazegraph.github.io/database/apidocs/index.html).
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###Maven Central
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###Maven Central ###
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Starting with the 2.0.0 release, the Blazegraph Database is available on Maven Central. To include the core platform and dependencies, include the artifact below in your dependencies. [Developing with Maven](https://wiki.blazegraph.com/wiki/index.php/MavenNotes) has notes on developing with Blazegraph Database source code and Maven.
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```
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</dependency>
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```
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###Deployers
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###Deployers ###
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Starting with 2.0.0, the default context path for deployment is `http://localhost:9999/blazegraph/`. There are also Maven artifacts for WAR deployers (`blazegraph-war`), executable Jar files (`blazegraph-jar`), [Debian Package](blazegraph-deb/) (`blazegraph-deb`), [RPM](blazegraph-rpm/) (`blazegraph-rpm`), and a [Tarball](blazegraph-tgz/) (`blazegraph-tgz`).
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The `bigdata-war` and `bigdata-jar` artifacts are included for legacy purposes and use the `/bigdata/` context path.
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###Tinkerpop3
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###Tinkerpop3 ###
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Tinkerpop3 supports requires Java 1.8 and is now in a separate repository. See [Tinkerpop3](https://github.com/blazegraph/tinkerpop3). It is also available as Maven Central artifact.
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```
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```
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###Triple Pattern Fragment (TPF) Server
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There is a [Blazegraph Triple Pattern Fragment TPF](https://github.com/blazegraph/BlazegraphBasedTPFServer) server that supports [Linked Data Fragments](http://linkeddatafragments.org/).
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```
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<dependency>
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<groupId>com.blazegraph</groupId>
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<artifactId>BlazegraphBasedTPFServer</artifactId>
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<version>0.1.0</version>
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</dependency>
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```
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### Triple Pattern Fragment (TPF) Server ###
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There is a [Blazegraph Triple Pattern Fragment TPF](https://github.com/hartig/BlazegraphBasedTPFServer) server that supports [Linked Data Fragments](http://linkeddatafragments.org/).
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###Blazegraph Python Client
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There is a Blazegraph Python Client [here](https://github.com/blazegraph/blazegraph-python)
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###Blazegraph Python Client ###
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There is a Blazegraph Python Client [here](https://github.com/blazegraph/blazegraph-python)
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###Blazegraph Dot Net RDF Client
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###Blazegraph Dot Net RDF Client ###
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There is a Blazegraph Dot Net RDF Client [here](https://github.com/blazegraph/blazegraph-dotnetrdf)
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##Reporting a Blazegraph Security Issue##
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##Reporting a Blazegraph Security Issue##
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For customers and Blazegraph users, please send an email to security [at] blazegraph.com to report a security issue. You may send an encrypted message using the public key below.
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This alias is monitored on a daily basis. All security reports are acknowledged within 24 hours. Mitigations for reported security issues are made in a reasonable timeframe, which may be as quickly as 24 hours for high-severity issues.
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###Public Key###
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###Public Key###
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Please use the public key below for transmitting any sensitive information to the security alias.
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