83 lines
5.3 KiB
Markdown
83 lines
5.3 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]:** It is RECOMMENDED to capture the value as provided by the application without attempting to do any case normalization.
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If the collection name is parsed from the query text, it SHOULD be the first collection name found in the query and it SHOULD match the value provided in the query text including any schema and database name prefix.
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For batch operations, if the individual operations are known to have the same collection name then that collection name SHOULD be used, otherwise `db.collection.name` SHOULD NOT be captured.
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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. The operation name MAY be parsed from the query text, in which case 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/v1.33.0/specification/document-status.md
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