Source: https://dev-docs.nebula-graph.io/v5.3.2/intro/limitations/
Documentation version: v5.3.2

# Capabilities and limits

NebulaGraph Database Developer Edition runs on one Docker host with one replica per partition. Each instance can store up to 1 GB of data.

## Deployment limits

 | Item | Limit | What this means
 | Deployment | Docker Compose only | Developer Edition is for learning and application development only. Production use is not supported. The environment must support Docker containers and have Docker and Docker Compose installed.
 | Docker hosts | One Docker host only | Scaling and distributed deployment are not supported.
 | Service groups | One only, created and initialized automatically during deployment | You cannot create additional service groups. All graphs share the same service group, with logical isolation between graphs.
 | Meta services | One only | You cannot deploy multiple Meta services. High availability is not supported for the Meta service.
 | Data partitions | One only, excluding the system partition | You cannot add data partitions. The single partition limits query parallelism and performance.
 | Replicas | Only one per partition; the count cannot be changed | No redundant replica is available for failover. Lost data cannot be recovered from another replica.
 | Cluster synchronization | Not supported | Primary–standby disaster recovery is not supported.
 | Data size | Up to 1 GB per instance | For development and validation only; not suitable for testing with large datasets or running performance tests.

See [Deploy Developer Edition with Docker Compose](https://dev-docs.nebula-graph.io/v5.3.2/get-started/deploy/) for deployment steps.

## Terms

- Docker host: The physical or virtual machine running Docker.
- Service group: A group of Graph and Storage services that work together to query and store graph data.
- Meta service: A service that manages information about hosts, service groups, partition placement, and user identities.
- Partitions and replicas: The data partition stores graph data. The system partition stores metadata for Schemas, graph types, and graphs, along with permissions, configuration, and other system information. A replica is a copy of a partition's data.

High availability is not supported

If the Docker host or its storage fails, no other replica can take over. Lost data cannot be recovered from another replica.