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scenario-runner

README.md

@fluid-experimental/azure-scenario-runner

Azure Scenario Runner

This package provides a reference application that executes pre-set scenarios with the intent of measuring the Fluid Framework's performance and reliability. We primarily use this package as part of a pipeline scheduled to run periodically to measure, log, and report various performance and reliability metrics. These metrics can then be used to gauge an undrestanding of the expected behavior/performance of the Fluid Framework in these various scenarios, which can help define the SLA.

IMPORTANT: This package is experimental. Its APIs may change without notice.

Do not use in production scenarios.

Using Fluid Framework libraries

When taking a dependency on a Fluid Framework library's public APIs, we recommend using a ^ (caret) version range, such as ^1.3.4. While Fluid Framework libraries may use different ranges with interdependencies between other Fluid Framework libraries, library consumers should always prefer ^.

If using any of Fluid Framework's unstable APIs (for example, its beta APIs), we recommend using a more constrained version range, such as ~.

Installation

To get started, install the package by running the following command:

npm i @fluid-experimental/azure-scenario-runner

API Documentation

API documentation for @fluid-experimental/azure-scenario-runner is available at https://fluidframework.com/docs/apis/azure-scenario-runner.

Implemented Scenarios

Azure Client

Tests creating an Azure Client

Doc Creator

This scenario creates a bunch of empty Fluid documents and measures the time it takes to create theses documents.

Doc Loader

This scenario loads a set of previously created docs multiple times and measures the time it takes to load these documents.

Map Traffic

This scenario loads a previously created document and generates traffic on that document by setting key-values in a SharedMap from multiple clients.

Nested Map

This scenario creates/loads a document and attempts to add many nested SharedMaps. Various configs control whether the nested maps are created before or after container.attach(), how many maps to create, and how long to wait between creating each map.

Guides

Running the perf tests locally

  1. Set the azure__fluid__relay__service__tenantId environment variable to equal your FRS TenantID
  2. Set the azure__fluid__relay__service__tenantKey environment variable to equal your FRS Tenant's Primary Key
  3. Set the azure__fluid__relay__service__function__url environment variable to equal your FRS Service Function URL
  4. Set the azure__fluid__relay__service__endpoint environment variable to equal the Alfred endpoint of your FRS tenant
  5. (Optional) Set the azure__fluid__relay__service__region environment variable to equal the region of your FRS tenant (eg. westus2, westus3, eastus, westeurope)
  6. Run the test with npm run start

Configuring the test configuration

The test configuration file testConfig_v1.yml can be configured to modify the parameters of each scenario and the order they're run in.

Adding New Scenarios

[TBD]

Scenario runnner for FRS and Azure Local Service. This package can be used to create and execute various scenarios involving azure-client, IFluidContainer and a range of distributed data structures (DDSes), while collecting telemetry and validating state in the process. Scenarios are sourced via yaml config files.

You can add new scenarios by following existing patterns (see MapTrafficRunner or DocLoaderRunner for examples) and adding additional test configs to the configs directory. Then, run your scenario with the command: npm run start:scenario ./configs/<config-name>.yml.

Appendix

Minimum Client Requirements

These are the platform requirements for the current version of Fluid Framework Client Packages. These requirements err on the side of being too strict since within a major version they can be relaxed over time, but not made stricter. For Long Term Support (LTS) versions this can require supporting these platforms for several years.

It is likely that other configurations will work, but they are not supported: if they stop working, we do not consider that a bug. If you would benefit from support for something not listed here, file an issue and the product team will evaluate your request. When making such a request please include if the configuration already works (and thus the request is just that it becomes officially supported), or if changes are required to get it working.

Supported Runtimes

  • NodeJs ^20.10.0 except that we will drop support for it when NodeJs 20 loses its upstream support on 2026-04-30, and will support a newer LTS version of NodeJS (22) at least 1 year before 20 is end-of-life. This same policy applies to NodeJS 22 when it is end of life (2027-04-30).
  • Modern browsers supporting the es2022 standard library: in response to asks we can add explicit support for using babel to polyfill to target specific standards or runtimes (meaning we can avoid/remove use of things that don't polyfill robustly, but otherwise target modern standards).

Supported Tools

  • TypeScript 5.4:
    • All strict options are supported.
    • strictNullChecks is required.
    • Configuration options deprecated in 5.0 are not supported.
    • exactOptionalPropertyTypes is currently not fully supported. If used, narrowing members of Fluid Framework types types using in, Reflect.has, Object.hasOwn or Object.prototype.hasOwnProperty should be avoided as they may incorrectly exclude undefined from the possible values in some cases.
  • webpack 5
    • We are not intending to be prescriptive about what bundler to use. Other bundlers which can handle ES Modules should work, but webpack is the only one we actively test.

Module Resolution

Node16, NodeNext, or Bundler resolution should be used with TypeScript compilerOptions to follow the Node.js v12+ ESM Resolution and Loading algorithm. Node10 resolution is not supported as it does not support Fluid Framework's API structuring pattern that is used to distinguish stable APIs from those that are in development.

Module Formats

  • ES Modules: ES Modules are the preferred way to consume our client packages (including in NodeJs) and consuming our client packages from ES Modules is fully supported.

  • CommonJs: Consuming our client packages as CommonJs is supported only in NodeJS and only for the cases listed below. This is done to accommodate some workflows without good ES Module support. If you have a workflow you would like included in this list, file an issue. Once this list of workflows motivating CommonJS support is empty, we may drop support for CommonJS one year after notice of the change is posted here.

Contribution Guidelines

There are many ways to contribute to Fluid.

Detailed instructions for working in the repo can be found in the Wiki.

This project has adopted the Microsoft Open Source Code of Conduct. For more information see the Code of Conduct FAQ or contact opencode@microsoft.com with any additional questions or comments.

This project may contain Microsoft trademarks or logos for Microsoft projects, products, or services. Use of these trademarks or logos must follow Microsoft’s Trademark & Brand Guidelines. Use of Microsoft trademarks or logos in modified versions of this project must not cause confusion or imply Microsoft sponsorship.

Help

Not finding what you're looking for in this README? Check out fluidframework.com.

Still not finding what you're looking for? Please file an issue.

Thank you!

Trademark

This project may contain Microsoft trademarks or logos for Microsoft projects, products, or services.

Use of these trademarks or logos must follow Microsoft's Trademark & Brand Guidelines.

Use of Microsoft trademarks or logos in modified versions of this project must not cause confusion or imply Microsoft sponsorship.