82 lines
5.2 KiB
Markdown
82 lines
5.2 KiB
Markdown
# OpenTelemetry instrumentation for cassandra-driver
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[![NPM Published Version][npm-img]][npm-url]
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[![Apache License][license-image]][license-image]
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This module provides automatic instrumentation for the injection of trace context to [`cassandra-driver`](https://www.npmjs.com/package/cassandra-driver), which may be loaded using the [`@opentelemetry/sdk-trace-node`](https://github.com/open-telemetry/opentelemetry-js/tree/main/packages/opentelemetry-sdk-trace-node) package and is included in the [`@opentelemetry/auto-instrumentations-node`](https://www.npmjs.com/package/@opentelemetry/auto-instrumentations-node) bundle.
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If total installation size is not constrained, it is recommended to use the [`@opentelemetry/auto-instrumentations-node`](https://www.npmjs.com/package/@opentelemetry/auto-instrumentations-node) bundle with [@opentelemetry/sdk-node](`https://www.npmjs.com/package/@opentelemetry/sdk-node`) for the most seamless instrumentation experience.
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Compatible with OpenTelemetry JS API and SDK `1.0+`.
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## Installation
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```bash
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npm install --save @opentelemetry/instrumentation-cassandra-driver
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```
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## Usage
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```js
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const { NodeTracerProvider } = require('@opentelemetry/sdk-trace-node');
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const { CassandraDriverInstrumentation } = require('@opentelemetry/instrumentation-cassandra-driver');
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const { registerInstrumentations } = require('@opentelemetry/instrumentation');
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const provider = new NodeTracerProvider();
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provider.register();
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registerInstrumentations({
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instrumentations: [
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new CassandraDriverInstrumentation(),
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// other instrumentations
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],
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});
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const cassandra = require('cassandra-driver');
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const client = new cassandra.Client({ ... });
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await client.execute('select * from foo');
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```
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### Instrumentation options
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| Option | Type | Default | Description |
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|-----------------------------|--------------------------------------------------|-------------|--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
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| `enhancedDatabaseReporting` | `boolean` | `false` | Whether to include database queries with spans. These can contain sensitive information when using unescaped parameters - i.e. `insert into persons (name) values ('Bob')` instead of `insert into persons (name) values (?)`. |
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| `responseHook` | `CassandraDriverResponseCustomAttributeFunction` | `undefined` | Hook for adding custom attributes before response is handled |
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| `maxQueryLength` | `number` | `65536` | If `enhancedDatabaseReporting` is enabled, limits the attached query strings to this length. |
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### Supported versions
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`>=4.4 <5.0`
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## Semantic Conventions
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This package uses `@opentelemetry/semantic-conventions` version `1.22+`, which implements Semantic Convention [Version 1.7.0](https://github.com/open-telemetry/opentelemetry-specification/blob/v1.7.0/semantic_conventions/README.md)
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Attributes collected:
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| Attribute | Short Description |
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| ----------------------- | ------------------------------------------------------------------------------ |
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| `db.name` | This attribute is used to report the name of the database being accessed. |
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| `db.statement` | The database statement being executed. |
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| `db.system` | An identifier for the database management system (DBMS) product being used. |
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| `db.user` | Username for accessing the database. |
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| `net.peer.name` | Remote hostname or similar. |
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| `net.peer.port` | Remote port number. |
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## Useful links
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- For more information on OpenTelemetry, visit: <https://opentelemetry.io/>
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- For more about OpenTelemetry JavaScript: <https://github.com/open-telemetry/opentelemetry-js>
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- For help or feedback on this project, join us in [GitHub Discussions][discussions-url]
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## License
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Apache 2.0 - See [LICENSE][license-url] for more information.
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[discussions-url]: https://github.com/open-telemetry/opentelemetry-js/discussions
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[license-url]: https://github.com/open-telemetry/opentelemetry-js-contrib/blob/main/LICENSE
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[license-image]: https://img.shields.io/badge/license-Apache_2.0-green.svg?style=flat
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[npm-url]: https://www.npmjs.com/package/@opentelemetry/instrumentation-cassandra-driver
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[npm-img]: https://badge.fury.io/js/%40opentelemetry%2Finstrumentation-cassandra-driver.svg
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