68 lines
4.7 KiB
Markdown
68 lines
4.7 KiB
Markdown
<!--- Hugo front matter used to generate the website version of this page:
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linkTitle: MongoDB
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--->
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# Semantic Conventions for MongoDB
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**Status**: [Experimental][DocumentStatus]
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The Semantic Conventions for [MongoDB](https://www.mongodb.com/) extend and override the [Database Semantic Conventions](database-spans.md)
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that describe common database operations attributes in addition to the Semantic Conventions
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described on this page.
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`db.system` MUST be set to `"mongodb"`.
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## Attributes
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<!-- semconv db.mongodb(full) -->
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| Attribute | Type | Description | Examples | [Requirement Level](https://opentelemetry.io/docs/specs/semconv/general/attribute-requirement-level/) | Stability |
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|---|---|---|---|---|---|
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| [`db.collection.name`](/docs/attributes-registry/db.md) | string | The MongoDB collection being accessed within the database stated in `db.namespace`. [1] | `public.users`; `customers` | `Required` |  |
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| [`db.namespace`](/docs/attributes-registry/db.md) | string | The MongoDB database name. [2] | `customers`; `test.users` | `Conditionally Required` If available. |  |
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| [`db.operation.name`](/docs/attributes-registry/db.md) | string | The name of the command being executed. [3] | `findAndModify`; `getMore`; `update` | `Conditionally Required` [4] |  |
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| [`error.type`](/docs/attributes-registry/error.md) | string | Describes a class of error the operation ended with. [5] | `timeout`; `java.net.UnknownHostException`; `server_certificate_invalid`; `500` | `Conditionally Required` If and only if the operation failed. |  |
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| [`server.port`](/docs/attributes-registry/server.md) | int | Server port number. [6] | `80`; `8080`; `443` | `Conditionally Required` [7] |  |
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| [`server.address`](/docs/attributes-registry/server.md) | string | Name of the database host. [8] | `example.com`; `10.1.2.80`; `/tmp/my.sock` | `Recommended` |  |
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**[1]:** If the collection name is parsed from the query, it SHOULD match the value provided in the query and may be qualified with the schema and database name.
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It is RECOMMENDED to capture the value as provided by the application without attempting to do any case normalization.
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**[2]:** <!-- TODO: overriding the base note, workaround for https://github.com/open-telemetry/build-tools/issues/299 -->
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**[3]:** See [MongoDB database commands](https://www.mongodb.com/docs/manual/reference/command/).
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**[4]:** If readily available. Otherwise, if the instrumentation library parses `db.query.text` to capture `db.operation.name`, then it SHOULD be the first operation name found in the query.
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**[5]:** The `error.type` SHOULD match the error code returned by the database or the client library, the canonical name of exception that occurred, or another low-cardinality error identifier. Instrumentations SHOULD document the list of errors they report.
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**[6]:** When observed from the client side, and when communicating through an intermediary, `server.port` SHOULD represent the server port behind any intermediaries, for example proxies, if it's available.
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**[7]:** If using a port other than the default port for this DBMS and if `server.address` is set.
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**[8]:** When observed from the client side, and when communicating through an intermediary, `server.address` SHOULD represent the server address behind any intermediaries, for example proxies, if it's available.
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`error.type` has the following list of well-known values. If one of them applies, then the respective value MUST be used; otherwise, a custom value MAY be used.
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| Value | Description | Stability |
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|---|---|---|
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| `_OTHER` | A fallback error value to be used when the instrumentation doesn't define a custom value. |  |
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<!-- endsemconv -->
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## Example
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| Key | Value |
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|:------------------------| :----------------------------------------------------------- |
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| Span name | `"findAndModify products"` |
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| `db.system` | `"mongodb"` |
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| `server.address` | `"mongodb0.example.com"` |
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| `server.port` | `27017` |
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| `network.peer.address` | `"192.0.2.14"` |
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| `network.peer.port` | `27017` |
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| `network.transport` | `"tcp"` |
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| `db.collection.name` | `"products"` |
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| `db.namespace` | `"shopDb"` |
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| `db.query.text` | not set |
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| `db.operation.name` | `"findAndModify"` |
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[DocumentStatus]: https://github.com/open-telemetry/opentelemetry-specification/tree/v1.31.0/specification/document-status.md
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