Troubleshooting

Troubleshooting in the UOSE system should be layered by flow: first check whether the resource is registered, then whether sync succeeded, then whether the ontology is published, then whether actions are discoverable, and finally whether execution parameters, policies, and source system responses are correct.

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Resource Registration Fails

Common causes:

• Required fields are missing.
• resourceType is not in the resource type catalog.
• connectionRef format is incorrect.
• capabilities is not a JSON object.
• capabilities does not match the schema.

How to handle:

• Check default capabilities in the resource type catalog.
• Check whether the Secret has a saved version.
• Use frontend dynamic forms to reduce handwritten JSON.

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Sync Fails

Common causes:

• baseUrl in the Secret payload is still an example address.
• Authentication mode or token is incorrect.
• Source system network is unreachable.
• SAP OData metadata cannot be fetched or parsed as supported V2/V4 EDMX.
• knowledgebase GraphRAG status is not ready.
• Database sync scope is too large.

How to handle:

• Check the sync job failedReason.
• Check the dead-letter payload.
• Retry after reducing the selected SAP OData services or narrowing database allowlists.
• For certificate issues, check TLS configuration.
• For background queue issues, check Redis and queue switches.

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Snapshot Missing in Ontology Workspace

If the ontology workspace shows missing snapshot:

1. Confirm the resource is registered.
2. Confirm at least one sync has run.
3. Check whether sync successfully returned snapshotId.
4. Check abnormal events in resource details.
5. Run full sync again.

If the status is publish_failed or projection_failed, sync may have already pulled data but failed during publishing or projection. Check API logs and dead-letter events.

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Entity Cannot Be Found

Troubleshooting order:

1. Check whether the resource has a current snapshot.
2. Check whether the entity type is correct.
3. Relax query keywords.
4. In the resource graph, inspect nodes by type.
5. For SAP OData, check whether the service was selected in the last sync run. For databases, check whether capabilities filtered out the target object.
6. Run full sync if necessary.

If the entity exists but the name does not match, add aliases or improve the adapter’s label generation logic.

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Actions Are Unavailable

First inspect discoverActions.deniedActions:

• discovery_mode_manual_only: the action does not allow automatic planning.
• target_entity_type_not_supported: the target type does not support the action.
• analysis_contract_missing: semantic model query contract is missing.
• query_endpoint_missing: resource capabilities lack a query endpoint.
• policy_binding:deny: policy denied the request.
• policy_binding:require_approval: approval is required.

Do not only check that allowed actions are empty. Check denied reasons.

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Execute Fails

Execution failures usually come from:

• Parameters do not match the input schema.
• Target resolution is not unique.
• Approval request is missing.
• Approval request fingerprint does not match.
• Adapter call to the source system failed.
• Source system permissions are insufficient.
• Query times out or result exceeds limits.

How to handle:

1. Reproduce with simulateAction first.
2. Check whether params come from the allowed action’s input schema.
3. Inspect audit trace.
4. Inspect the source system response summary.
5. Adjust capabilities or policies if necessary.

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Quick Lookup Table