Menu
Scroll for more
This is documentation for the next version of Grafana k6 documentation. For the latest stable release, go to the latest version.
Documentation
Grafana k6
Testing guides
Injecting faults with xk6-disruptor
xk6-disruptor API
Faults
gRPC
Open source
gRPC
A gRPC Fault describes the characteristics of the faults to be injected in the gRPC requests served by a target.
A gRPC fault is described by the following attributes:
| Attribute | Type | Description |
|---|---|---|
| averageDelay | string | average delay added to requests represented as a string (default 0) |
| delayVariation | string | variation in the injected delay (default 0) |
| statusMessage | string | message to be returned when an error is injected |
| statusCode | number | status to be returned when an error is injected |
| errorRate | number | rate of requests that will return an error, represented as a float in the range 0.0 to 1.0 (default 0.0) |
| exclude | string | comma-separated list of services to be excluded from disruption |
| port | number | port on which the requests will be intercepted |
Note
averageDelayanddelayVariationare applied to all requests affected by the fault, regardless of the value oferrorRate.statusCodeis returned only to a fraction of requests defined byerrorRate.
Example
This example defines a gRPC fault that introduces a delay of 50ms in all requests and returns a status code 13 in 10% of the requests.
JavaScript
const fault = {
averageDelay: '50ms',
statusCode: 10,
errorRate: 0.1,
};Was this page helpful?
Related resources from Grafana Labs
Additional helpful documentation, links, and articles:
Video

Performance testing and observability in Grafana Cloud
Optimize user experiences with Grafana Cloud. Learn real-time insights, performance testing with k6, and continuous validation with Synthetic Monitoring.
Events

User-centered observability: load testing, real user monitoring, and synthetics
Learn how to use load testing, synthetic monitoring, and real user monitoring (RUM) to understand end users' experience of your apps. Watch on demand.