# Service planes The InstantML API binary runs in one of three service-plane roles, and the hosted deployment splits control-plane and data-plane responsibilities behind one public API URL. ## Service roles | Role | Routes | Typical use | | --- | --- | --- | | `combined` | All control and data routes in one process. | Local development and single-binary self-hosting (the Docker Compose default). | | `control` | Auth, sessions, workspaces, seats, invitations, billing, API-key admin, dashboard preferences, and saved workspace views. | Hosted account service. | | `data` | Projects, runs, metrics, console logs, attributes, rich objects, artifacts, reports, imports, export, and usage. | Hosted tenant product service. | Platform routes exist on every service regardless of role: - `GET /health` - `GET /healthz` - `GET /readyz` - `GET /metrics` - `GET /openapi.json` - `GET /api/auth/config` `/openapi.json` and `/api/auth/config` report the active service plane, so you can verify which role served a request. ## Hosted split topology | Source | Route | Backing data | | --- | --- | --- | | Browser / dashboard | Public HTTPS API URL | Control service for auth, billing, seats, API keys, preferences, and workspace views; data service for product reads. | | Python SDK / uploader | Public HTTPS API URL | Data service for projects, runs, metrics, logs, artifacts, objects, reports, imports, export, and usage. | | Control service | Control-plane Postgres | Account, session, billing, API-key, and tenant-route records. | | Data service | Routed tenant ClickHouse databases | Tenant product records and metric tables. | Requests are routed by path for a single data cell. A plain load balancer cannot inspect the workspace hidden inside a bearer token before authentication, so scaling to many cells adds a discovery step at the application layer rather than a central hot-path proxy. The default hosted data store is InstantML-owned ClickHouse on Google Cloud. Premium workspaces can instead route their tenant data to [customer-owned ClickHouse](/docs/guides/customer-owned-clickhouse.md). ## Readiness `/readyz` fails until ClickHouse is reachable and the process-local control projection (tenant routes, memberships, API keys) has loaded. After that, a data-plane auth miss forces one control-record refresh and retry, so a freshly created API key or browser session becomes usable without waiting for the next background refresh. ## Scaling posture Control and data services scale conservatively to preserve tenant isolation, predictable routing, and consistent control-record replay. Teams that need stronger isolation, noisy-neighbor protection, or custom retention can run on a dedicated data cell or bring their own ClickHouse deployment. ## Next steps - [System overview](/docs/architecture/system-overview.md) - [Storage model](/docs/architecture/storage-model.md) - [Google Cloud ClickHouse](/docs/architecture/google-clickhouse.md) - [Health and observability API](/docs/api/health-observability.md) - [API authentication](/docs/api/authentication.md) ## Agent navigation - [Docs index](/llms.txt) - [Full docs bundle](/llms-full.txt) ### Get Started - [Overview](/docs/index.md) - [Quickstart](/docs/quickstart.md) - [Core Concepts](/docs/concepts/core-concepts.md) - [Pricing](/docs/pricing.md) - [Benchmarks](/docs/benchmarks.md) - [Examples](/docs/guides/examples.md) - [Troubleshooting](/docs/troubleshooting.md) ### SDK - [Installation Auth](/docs/sdk/installation-auth.md) - [Logging](/docs/sdk/logging.md) - [Tracing](/docs/sdk/tracing.md) - [Metrics Steps](/docs/sdk/metrics-steps.md) - [Config Tags Notes](/docs/sdk/config-tags-notes.md) - [Artifacts Checkpoints](/docs/sdk/artifacts-checkpoints.md) - [Rich Objects](/docs/sdk/rich-objects.md) - [Distributed Training](/docs/sdk/distributed-training.md) - [Console System Integrations](/docs/sdk/console-system-integrations.md) - [Reliability](/docs/sdk/reliability.md) - [Cli Login](/docs/sdk/cli-login.md) - [Querying Data](/docs/sdk/querying-data.md) - [Agent Mcp](/docs/sdk/agent-mcp.md) - [Examples Patterns](/docs/sdk/examples-patterns.md) ### Integrations - [Overview](/docs/integrations/overview.md) - [Pytorch Lightning](/docs/integrations/pytorch-lightning.md) - [Huggingface Transformers](/docs/integrations/huggingface-transformers.md) - [Keras](/docs/integrations/keras.md) - [Wandb](/docs/integrations/wandb.md) ### Dashboard - [Tour](/docs/dashboard/tour.md) - [Organizations Workspaces](/docs/dashboard/organizations-workspaces.md) - [Runs Workspace](/docs/dashboard/runs-workspace.md) - [Metrics Charts](/docs/dashboard/metrics-charts.md) - [Run Detail](/docs/dashboard/run-detail.md) - [Traces](/docs/dashboard/traces.md) - [Compare Runs](/docs/dashboard/compare-runs.md) - [Research Dashboards](/docs/dashboard/research-dashboards.md) - [Artifacts Files](/docs/dashboard/artifacts-files.md) - [Run Health](/docs/dashboard/alerts.md) - [Datasets](/docs/dashboard/datasets.md) - [Checkpoints](/docs/dashboard/checkpoints.md) - [Reports](/docs/dashboard/reports.md) - [Settings Api Keys](/docs/dashboard/settings-api-keys.md) - [Api Tab](/docs/dashboard/api-tab.md) - [Onboarding Team Billing](/docs/dashboard/onboarding-team-billing.md) ### Data - [Imports](/docs/guides/imports.md) - [W&B alternative](/docs/guides/wandb-alternative.md) - [InstantML vs MLflow](/docs/guides/instantml-vs-mlflow.md) - [W&B import guide](/docs/guides/wandb-import-guide.md) - [W&B and Neptune imports](/docs/guides/wandb-neptune-imports.md) - [Export Usage Limits](/docs/guides/export-usage-limits.md) - [Pricing Limits Billing](/docs/guides/pricing-limits-billing.md) - [Auth Billing Storage](/docs/guides/auth-billing-storage.md) - [Customer Owned Clickhouse](/docs/guides/customer-owned-clickhouse.md) - [Observability](/docs/guides/observability.md) ### API **Practical API guides** - [Authentication](/docs/api/authentication.md) - [Errors And Limits](/docs/api/errors-and-limits.md) - [Health Observability](/docs/api/health-observability.md) - [Projects Runs](/docs/api/projects-runs.md) - [Metrics Series](/docs/api/metrics-series.md) - [Attributes Objects](/docs/api/attributes-objects.md) - [Artifacts](/docs/api/artifacts.md) - [Reports](/docs/api/reports.md) - [Iframe Embeds](/docs/api/iframe-embeds.md) - [Import Export Usage](/docs/api/import-export-usage.md) - [Dashboard Control State](/docs/api/dashboard-control-state.md) **Architecture** - [System Overview](/docs/architecture/system-overview.md) - [Service Planes](/docs/architecture/service-planes.md) (current page) - [Storage Model](/docs/architecture/storage-model.md) - [Google Clickhouse](/docs/architecture/google-clickhouse.md) - [Auth Tenancy](/docs/architecture/auth-tenancy.md) - [Schema Reference](/docs/architecture/schema-reference.md) ### API Reference - [API Reference](/docs/api-reference.md)