• What is EventStoreDB?

    EventStoreDB is a new category of operational database that has evolved from the Event Sourcing community. Powered by an event-native data model, events are stored all the way down with the context of why they have happened. Providing flexible, real-time data insights in the language your business understands.

    Download the newest version here .

  • How do I get started with EventStoreDB?

    Follow the getting started guide here.

    Our community is also on hand to help you at every step of your journey.

  • Where can I find the licensing information?

    Click here to view Event Store Ltd’s licensing information.

  • Where can I find documentation?

    For guidance on installation, development, deployment, and administration, see the User Documentation.

  • What is the latest version of EventStoreDB?

    You can find the latest versions of EventStoreDB on our downloads page.

  • What clients are available for EventStoreDB?

    This getting started guide shows you how to get started with EventStoreDB by setting up an instance or cluster and configuring it. EventStoreDB supports two protocols: gRPC and TCP(legacy).

    EventStoreDB supported clients

    Legacy TCP Clients

    Community developed clients

    Read more in the documentation.

  • How do I get started with Event Store Cloud?

    Follow our guide to get started with Event Store Cloud.

  • How do I self-manage EventStoreDB?

    Follow these steps to host EventStoreDB yourself.

  • Where can I find the Event Store Community?

    Our community is a space to learn more about EventStoreDB, the operational database that values data at its origin. Come discover why we are so much more than just another Event Store.

  • How do I contribute?

    Development is done on the master branch. We attempt to do our best to ensure that the history remains clean and to do so, we generally ask contributors to squash their commits into a set or single logical commit.

    If you want to switch to a particular release, you can check out the release branch for that particular release. For example:
    git checkout release/oss-v22.10

  • How do I build EventStoreDB from source?

    EventStoreDB is written in a mixture of C# and JavaScript. It can run on Windows, Linux and macOS (using Docker) using the .NET Core runtime.


    Once you've installed the prerequisites for your system, you can launch a Release build of EventStore as follows:

    dotnet build -c Release src

    The build scripts: and build.ps1 are also available for Linux and Windows respectively to simplify the build process.

    To start a single node, you can then run:

    dotnet ./src/EventStore.ClusterNode/bin/x64/Release/net6.0/EventStore.ClusterNode.dll --dev --db ./tmp/data --index ./tmp/index --log ./tmp/log

    Running the tests

    You can launch the tests as follows:

    dotnet test src/EventStore.sln

    Build EventStoreDB Docker image

    You can also build a Docker image by running the command:

    docker build --tag myeventstore . \
    --build-arg CONTAINER_RUNTIME={container-runtime}
    --build-arg RUNTIME={runtime}

    For instance:

    docker build --tag myeventstore . \
    --build-arg CONTAINER_RUNTIME=bullseye-slim \
    --build-arg RUNTIME=linux-x64

    Note: Because of the Docker issue, if you're building a Docker image on Windows, you may need to set the DOCKER_BUILDKIT=0 environment variable. For instance, running in PowerShell:

    $env:DOCKER_BUILDKIT=0; docker build --tag myeventstore . `
    --build-arg CONTAINER_RUNTIME=bullseye-slim `
    --build-arg RUNTIME=linux-x64

    Currently we support following configurations:

    1. Bullseye slim:
    • CONTAINER_RUNTIME=bullseye-slim
    • RUNTIME=linux-x64
    1. Focal:
    • RUNTIME=linux-x64
    1. Alpine:
    • RUNTIME=alpine-x64

    You can verify the built image by running:

    docker run --rm myeventstore --insecure --what-if
  • Does Event Store offer commercial support for EventStoreDB?

    We offer plans for every stage of project from proof of concept to successful operation in production, with a range of SLAs to suit startups to enterprise organizations worldwide. You can view more here.

  • Does Event Store offer training?

    We offer public and private training for Event Sourcing, CQRS, DDD, and EventStoreDB with our professional training courses for developers and software architects. You can view more information here.

  • Need help?

Event Store Cloud

  • What is Event Store Cloud?

    Event Store Cloud is a fully managed cloud offering that’s designed to make it easy for developers to build and run highly available and secure applications that incorporate EventStoreDB without having to worry about managing the underlying infrastructure. You can provision EventStoreDB clusters in AWS, Azure, and GCP, and connect these services securely to your own cloud resources.

  • How do I get started with Event Store Cloud?

    Follow our guide to get started with Event Store Cloud. 

  • Where can I find Event Store Cloud documentation?

    You can find our Event Store Cloud documentation here.

  • Can I set up more than one organisation per account?

    With your account, you might have more than one organisation. Each organisation has its own billing account and therefore is invoiced separately for all the resources within the organisation. For example, if you have several customers and want to have a separate EventStoreDB cluster for each customer and also be able to bill the customer for the cloud resources, you can separate each customer into its own organisation.

  • How do I provision EventStoreDB clusters?

    Event Store Cloud allows you to provision EventStoreDB clusters in AWS, GCP, and Azure.

    The provisioning process consists of the following steps:

    1. Create a network in Event Store Cloud.
    2. Peer the new network with your own network at the same cloud.
    3. Deploy the EventStoreDB cluster.

    Find the detailed guideline for your cloud provider:

  • Is the cloud subscription used for other customers or is it dedicated to a single customer?

    Every organisation has its own individual AWS account, GCP project, and Azure subscription.
  • How do I assess the size of my instance in Event Store Cloud?

    Use this guide to assess the needs of your application performance, compared with the capability of a given EventStoreDB instance in Event Store Cloud.

  • How do I migrate my database to Event Store Cloud?

    When replacing a self-hosted EventStoreDB cluster with the managed cluster in Event Store Cloud, you might need to migrate the data, so your workloads can switch to the cloud cluster.

    Currently, the only way to migrate data to the cloud cluster or instance is live migration by replication. Live migration is done by reading events from the source database (from $all) using a client protocol (TCP or gRPC) and then writing those events to the target database

  • How do I connect to Cloud Kubernetes?

    Follow our guide here.

  • Is it possible to change the cluster instance size or topology?

    We don't have this feature available yet. However, you can always do it using backup and restore.

  • Are there plans to support automatic resize of cluster nodes?

    You will be able to do an online instance resize, but it won't be auto-scaling. You will have to change the instance size for your clusters yourself, when this feature will become available.

    The Event Store Cloud roadmap is available on our website, scroll down to see the roadmap.

  • Are there plans to support automatic disk resize?

    No, you have to resize the disks yourself. Disks can be expanded on-demand in AWS and GCP. For Azure read the procedure in the documentation. Because cloud providers limit how often disk resize operations can be performed the EventStore Cloud may enforce a waiting period on recently resized clusters before they can get resized again.

  • Do you have indicative performance benchmarks for the offered cluster sizes?

    We published such benchmarks available on the Cloud instance sizing guide page.

    Please remember, however, that each use case is different, and you might always get better or worse performance, compared with our advertised benchmarking figures. We can help you to analyse your needs and provide more detailed expected performance figures, please get in touch.

  • Is there any type of alerting functionality for cluster issues?

    Yes. Learn more in the Events Console documentation section.

  • What regions do you support on AWS, GCP and Azure?

    The list of supported regions is in the provisioning documentation.

    At the moment, you can deploy EventStoreDB clusters only in regions with three or more availability zones. Each region also need to support a set of services necessary for the provisioning and monitoring of the clusters.

    If you think a region should be available contact us.

  • Does the admin UI run on the provisioned cluster?

    Yes. Go to the clusters list in the Cloud Console, select the cluster you need and click on the Addresses tab on the bottom panel. You will find the admin UI URL there. You need to be connected to a network, which is routed to Event Store Cloud to open the admin UI in your browser.

  • Are there plans for the scheduled scavenge feature?

    Yes, we are actively working on it.

  • Can I automate backups?

    The scheduled backup feature has been released in March 2021. Read more in cloud backup documentation.

  • Can I download a backup to store it locally?

    We plan to allow backup copies to the customer cloud account in the future. Currently, it's not possible because of security considerations.

  • What is the SLA for Event Store Cloud?

    You can find out about the SLA levels provided by Event Store Cloud in our Service Level Agreement.

  • Does Event Store offer commercial support?

    All Cloud customers can choose to add commercial support covering core EventStoreDB usage and version upgrade support. Choose from a range of SLAs to suit your project requirements. You can find out more here.

  • Does Event Store have a security policy?

    Event Store Ltd has security policies in place. You can find out more here.

    If you have specific questions please contact us.

  • Has the system been independently audited?

    Event Store Ltd is aware of the security importance. We're treating it is as a high priority. Our Cloud offering has been independently audited, and we achieved SOC 2 and ISO 27001 certification in January 2022.

    If you have specific questions please contact us.

  • How much does Event Store Cloud cost?

    You can view our pricing here.

  • Need help?