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YouTrackDB
Issue tracker
|
Getting started
Join our Zulip community!
If you are interested in YouTrackDB, consider joining our
Zulip
community.
Tell us about exciting applications you are building, ask for help, or just chat with friends 😃
What is YouTrackDB?
YouTrackDB is a
general use
object-oriented graph database.
YouTrackDB is being supported and developed by JetBrains and is used internally in production.
YouTrackDB’s key features are:
Fast data processing
: Links traversal is processed with O(1) complexity. There are no
expensive run-time JOINs.
Object-oriented API
: This API implements rich graph and
object-oriented data models. Fundamental concepts of
inheritance and polymorphism
are implemented on the database
level.
Snapshot isolation by default
: All transactions run under snapshot isolation. Each
transaction sees a stable snapshot of the database as of its start time, eliminating dirty
reads, non-repeatable reads, and phantom reads.
Implementation of TinkerPop API and
Gremlin query language
:
You can use both Gremlin query language for your queries and TinkerPop API out of the box.
Support of
GQL
with seamless integration with
Gremlin
is
in progress
.
For maximum query performance, we suggest using
YQL
for initial
data prefetching.
YQL
(YouTrackDB Query Language)
: A SQL-based query language
with extensions for graph functionality. YQL uses intuitive dot notation for link traversal
instead of JOINs, supports the powerful
MATCH statement
for graph
pattern matching, and includes automatic index usage for query optimization.
Scalable development workflow
: YouTrackDB works in schema-less, schema-mixed, and schema-full
modes.
Strong security
: A strong security profiling system based on user, role,
and predicate
security policies
.
Encryption of data at rest
: Optionally encrypts all data stored on disk.
Easy to install and use
YouTrackDB can run on any platform without configuration and installation.
If you want to experiment with YouTrackDB, please check out our REPL
console
.
docker run -it youtrackdb/youtrackdb-console
To install YouTrackDB as an embedded database, add the following dependency to your Maven project:
io.youtrackdb
youtrackdb-embedded
0.5.0-SNAPSHOT
The
youtrackdb-embedded
artifact is a shaded uber-jar that relocates all third-party
dependencies (Guava, Jackson, Groovy, etc.) under
com.jetbrains.youtrackdb.shade
,
so they won’t conflict with versions used by your application.
You also need to add a YTDB snapshot repository to your Maven pom.xml file:
Central Portal Snapshots
central-portal-snapshots
https://central.sonatype.com/repository/maven-snapshots/
false
true
or in case of Gradle:
dependencies {
implementation ‘io.youtrackdb:youtrackdb-embedded:0.5.0-SNAPSHOT’
}
and
repositories {
maven {
url = uri(“https://central.sonatype.com/repository/maven-snapshots/”)
mavenContent {
snapshotsOnly()
}
}
}
If you want to work with YouTrackDB server, you can start it using the Docker image:
docker run -p 8182:8182 \
-v
$(
pwd
)
/secrets:/opt/ytdb-server/secrets \
-v
$(
pwd
)
/databases:/opt/ytdb-server/databases \
-v
$(
pwd
)
/conf:/opt/ytdb-server/conf \
-v
$(
pwd
)
/log:/opt/ytdb-server/log \
youtrackdb/youtrackdb-server
and provide root password for the database in the
secrets/root_password
file.
YouTrackDB requires at least JDK 21.
To learn how to use YouTrackDB, see the
Getting Started
guide.
For more examples covering both server and embedded deployments, check out the
examples
project.
Contributing
YouTrackDB runs every non-trivial change through a structured development
workflow: research, design, plan review, track-by-track implementation, and
review. New contributors can learn to run it end to end in the development
workflow book, starting at
Chapter 1 — The workflow at a glance
.
About
YouTrackDB is a general-use object-oriented graph database with storage format native to handle graph relations. YouTrackDB supports Gremlin queries and ACID transactions.
youtrackdb.io
Topics
nosql
dbms
nosql-databases
graph-database
gremlin
acid
nosql-data-storage
graph-databases
nosql-database
gremlin-server
object-database
dbms-project
object-oriented-database
gremlin-api
graphdatabase
youtrackdb
Resources
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License
Apache-2.0 license
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Security policy
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