This module provides automatic instrumentation for the redis@^2.6.0 module, which may be loaded using the @opentelemetry/sdk-trace-node package and is included in the @opentelemetry/auto-instrumentations-node bundle.
If total installation size is not constrained, it is recommended to use the @opentelemetry/auto-instrumentations-node bundle with @opentelemetry/sdk-node for the most seamless instrumentation experience.
Compatible with OpenTelemetry JS API and SDK 1.0+.
npm install --save @opentelemetry/instrumentation-redisThis package supports redis@^2.6.0 and redis@^3.0.0
For version redis@^4.0.0, please use @opentelemetry/instrumentation-redis-4
OpenTelemetry Redis Instrumentation allows the user to automatically collect trace data and export them to the backend of choice, to give observability to distributed systems when working with redis.
To load a specific instrumentation (redis in this case), specify it in the registerInstrumentations' configuration
const { NodeTracerProvider } = require('@opentelemetry/sdk-trace-node');
const { RedisInstrumentation } = require('@opentelemetry/instrumentation-redis');
const { registerInstrumentations } = require('@opentelemetry/instrumentation');
const provider = new NodeTracerProvider();
provider.register();
registerInstrumentations({
instrumentations: [
new RedisInstrumentation(),
],
})See examples/redis for a short example.
Redis instrumentation has a few options available to choose from. You can set the following:
| Options | Type | Description |
|---|---|---|
dbStatementSerializer |
DbStatementSerializer (function) |
Redis instrumentation will serialize the command to the db.statement attribute using the specified function. |
responseHook |
RedisResponseCustomAttributeFunction (function) |
Function for adding custom attributes on db response. Receives params: span, moduleVersion, cmdName, cmdArgs
|
requireParentSpan |
boolean |
Require parent to create redis span, default when unset is false. |
The instrumentation serializes the command into a Span attribute called db.statement. The standard serialization format attempts to be as informative as possible while avoiding the export of potentially sensitive data. The number of serialized arguments depends on the specific command, see the configuration
list in @opentelemetry/redis-common.
It is also possible to define a custom serialization function. The function will receive the command name and arguments and must return a string.
Here is a simple example to serialize the command name and all command arguments. Notice that it might capture sensitive data and big payloads:
const { RedisInstrumentation } = require('@opentelemetry/instrumentation-redis');
const redisInstrumentation = new RedisInstrumentation({
dbStatementSerializer: function (cmdName, cmdArgs) {
return [cmdName, ...cmdArgs].join(" ");
},
});- For more information on OpenTelemetry, visit: https://opentelemetry.io/
- For more about OpenTelemetry JavaScript: https://github.com/open-telemetry/opentelemetry-js
- For help or feedback on this project, join us in GitHub Discussions
Apache 2.0 - See LICENSE for more information.