Graphs for Everyone
= Neo4j: Graphs for Everyone =
https://neo4j.com[Neo4j] is the world's leading Graph Database. It is a high performance graph store with all the features expected of a mature and robust database, like a friendly query language and ACID transactions. The programmer works with a flexible network structure of nodes and relationships rather than static tables -- yet enjoys all the benefits of enterprise-quality database. For many applications, Neo4j offers orders of magnitude performance benefits compared to relational DBs.
Learn more on the https://neo4j.com[Neo4j website].
== Using Neo4j ==
Neo4j is available both as a standalone server, or an embeddable component. You can https://neo4j.com/download/[download] or https://neo4j.com/sandbox/[try online].
== Extending Neo4j ==
We encourage experimentation with Neo4j. You can build extensions to Neo4j, develop library or drivers atop the product, or make contributions directly to the product core. You'll need to sign a Contributor License Agreement in order for us to accept your patches.
== Dependencies ==
Neo4j is built using https://maven.apache.org/[Apache Maven] version 3.5.4 and a recent version of supported VM. Bash and Make are also required. Note that maven needs more memory than the standard configuration, this can be achieved with
macOS users need to have https://brew.sh/[Homebrew] installed.
=== With brew on macOS ===
brew install maven
Please note that we do not support building Debian packages on macOS.
=== With apt-get on Ubuntu ===
sudo apt install maven openjdk-11-jdk
On top of that, to build Debian packages and Neo4j Desktop:
apt install debhelper devscripts dos2unix dpkg make xmlstarlet # You will need a license for install4j, which is only needed for Neo4j Desktop curl -O https://download-keycdn.ej-technologies.com/install4j/install4jlinux614.deb dpkg -i install4jlinux614.deb
== Building Neo4j ==
Before you start running the unit and integration tests in the Neo4j Maven project on a Linux-like system, you should ensure your limit on open files is set to a reasonable value. You can test it with
ulimit -n. We recommend you have a limit of at least 40K.
mvn clean installwill only build the individual jar files.
mvn clean install -DskipTests.
export PATH="bin:$PATH" && make clean allin the packaging directory after building artifacts with Maven.
== Running Neo4j ==
After running a
mvn clean install,
packaging/standalone/targetand extract the version you want, then:
in the extracted folder to start Neo4j on
localhost:7474. On Windows you want to run:
== Neo4j Desktop ==
Neo4j Desktop is a convenient way for developers to work with local Neo4j databases.
To install Neo4j Desktop, go to https://neo4j.com/download-center/[Neo4j Download Center] and follow the instructions.
== Licensing ==
Neo4j Community Edition is an open source product licensed under GPLv3.
Neo4j Enterprise Edition includes additional closed-source components not available in this repository and requires a commercial license from Neo4j or one of its affiliates.
== Trademark ==
Neo4j's trademark policy is available at https://neo4j.com/trademark-policy/[our trademark policy page].