{"id":52038135,"url":"https://github.com/adobe/aem-dispatcher-experiments","last_synced_at":"2026-08-01T21:04:25.660Z","repository":{"id":54080585,"uuid":"278684059","full_name":"adobe/aem-dispatcher-experiments","owner":"adobe","description":"Experiments to demonstrate the impact of the Dispatcher and it's configuration parameters.","archived":false,"fork":false,"pushed_at":"2024-04-08T12:50:09.000Z","size":4652,"stargazers_count":62,"open_issues_count":5,"forks_count":22,"subscribers_count":10,"default_branch":"main","last_synced_at":"2026-04-17T23:53:30.933Z","etag":null,"topics":["adobe-experience-manager","aem","apache2","dispatcher"],"latest_commit_sha":null,"homepage":"","language":"HTML","has_issues":true,"has_wiki":null,"has_pages":null,"mirror_url":null,"source_name":null,"license":"apache-2.0","status":null,"scm":"git","pull_requests_enabled":true,"icon_url":"https://github.com/adobe.png","metadata":{"files":{"readme":"README.md","changelog":null,"contributing":".github/CONTRIBUTING.md","funding":null,"license":"LICENSE","code_of_conduct":"CODE_OF_CONDUCT.md","threat_model":null,"audit":null,"citation":null,"codeowners":null,"security":null,"support":null}},"created_at":"2020-07-10T16:37:56.000Z","updated_at":"2026-01-19T06:30:30.000Z","dependencies_parsed_at":"2022-08-13T06:31:35.546Z","dependency_job_id":null,"html_url":"https://github.com/adobe/aem-dispatcher-experiments","commit_stats":null,"previous_names":[],"tags_count":0,"template":false,"template_full_name":null,"purl":"pkg:github/adobe/aem-dispatcher-experiments","repository_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/adobe%2Faem-dispatcher-experiments","tags_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/adobe%2Faem-dispatcher-experiments/tags","releases_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/adobe%2Faem-dispatcher-experiments/releases","manifests_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/adobe%2Faem-dispatcher-experiments/manifests","owner_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/owners/adobe","download_url":"https://codeload.github.com/adobe/aem-dispatcher-experiments/tar.gz/refs/heads/main","sbom_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/adobe%2Faem-dispatcher-experiments/sbom","scorecard":null,"host":{"name":"GitHub","url":"https://github.com","kind":"github","repositories_count":286080680,"owners_count":36170401,"icon_url":"https://github.com/github.png","version":null,"created_at":"2022-05-30T11:31:42.601Z","updated_at":"2026-07-20T02:08:10.276Z","status":"online","status_checked_at":"2026-08-01T02:00:05.789Z","response_time":100,"last_error":null,"robots_txt_status":"success","robots_txt_updated_at":"2025-07-24T06:49:26.215Z","robots_txt_url":"https://github.com/robots.txt","online":true,"can_crawl_api":true,"host_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub","repositories_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories","repository_names_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repository_names","owners_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/owners"}},"keywords":["adobe-experience-manager","aem","apache2","dispatcher"],"created_at":"2026-08-01T21:04:24.941Z","updated_at":"2026-08-01T21:04:25.644Z","avatar_url":"https://github.com/adobe.png","language":"HTML","funding_links":[],"categories":[],"sub_categories":[],"readme":"# AEM 6.5 Dispatcher Experiments\n\nThis repository contains a collection of Dispatcher experiments in take-home lab format. The content is intended for intermediate to advanced AEM developers and customizers.\n\n## Goal\n\nThe goal of these experiments is to raise awareness about the Dispatcher, and provide a project for test driving its feature set.\n\n## Non-Goals\n\nThis repo does not attempt to prescribe a one-size-fits-all configuration for the dispatcher. Due to the myriad use cases that AEM supports, it would be impossible to do so. Instead, pick and choose concepts from the below experiments and try them out on your project.\n\n## Getting set up\n\nYou will need the following SDKs, tools, and apps installed to work through the experiments:\n\n- Java `11.0.*`\n- Maven `3.6.*`\n- Node `10.15.*`\n- [JMeter](https://jmeter.apache.org/)\n- [VisualVM](https://visualvm.github.io/)\n\nYou will also need a local AEM author/publish/dispatcher setup:\n\n- AEM 6.5 author instance running on `:4502`\n- AEM 6.5 publish instance running on `:4503`\n    - Ideally, both instances will have the latest [Service Pack](https://docs.adobe.com/content/help/en/experience-manager-65/release-notes/service-pack/sp-release-notes.html) installed\n- Dispatcher accessible at `aem-publish.local:8080`\n    - macOS Catalina \u0026 Mojave users can find [macOS dispatcher setup instructions here](docs/Local-Dispatcher-macOS.md)\n    - Windows users can find [IIS/Windows 10 instructions here](docs/Local-Dispatcher-Windows.md)\n- Cache flushing agent [configured on the Publish instance](docs/Flush-agent-setup.md)\n\nYou will need to install the AEM project code contained in `aem-project/` on your local author and publish instances:\n\n- Ensure your Maven settings.xml file includes a profile for the [Adobe Maven Repository](https://helpx.adobe.com/ca/experience-manager/kb/SetUpTheAdobeMavenRepository.html)\n- Build and install the project code on your local author and publish:\n\n```\ncd aem-project/\nmvn -PautoInstallSinglePackage -PautoInstallSinglePackagePublish clean install\n```\n\nReady? Confirm by checking:\n\n- Navigate to http://aem-publish.local:8080/content/dispatchertester/us/en/regular-page.html. The rendered page should look like this:\n\u003cimg src=\"docs/img/regular-page.png\" width=\"300\"\u003e\n\n- And, the dispatcher docroot (cache directory) should contain a static copy of this page:\n\u003cimg src=\"docs/img/cache-docroot.png\"\u003e\n\n# Experiments\n\n## 1. Effect of `Re-fetching Dispatcher Flush`\n\nIn the HelpX article [Optimizing the Dispatcher cache](https://helpx.adobe.com/ca/experience-manager/kb/optimizing-the-dispatcher-cache.html#refetching-flush), the concept of \"Re-fetching Dispatcher Flush\" is introduced. This experiment shows the impact.\n\n[⇨ Effect of Re-fetching Dispatcher Flush](experiments/refetching-flush)\n\n## 2. Effect of a `/statfileslevel` greater than 0\n\nThe configuration included in the dispatcher download contains a `/statfileslevel` set to 0. This experiment demonstrates the performance impact that can be achieved by increasing this value. \n\n[⇨ Effect of a `/statfileslevel` greater than 0](experiments/statfileslevel)\n\n## 3. Effect of an `/ignoreUrlParams` allow list\n\nConfiguring `/ignoreUrlParams` in an allow list manner is important to improve your cache hit ratio, which in turn can save your publish tier from unnecessary content rendering.\n\n[⇨ Effect of an `/ignoreUrlParams` allow list](experiments/ignoreUrlParams)\n\n## 4. Effect of the `/gracePeriod` setting\n\n`gracePeriod` is a relatively new feature which can reduce spikes in load when a number of cache invalidation events occur in quick succession.\n\n[⇨ Effect of the `/gracePeriod` setting](experiments/gracePeriod)\n\n## 5. Effect of `/enableTTL`\n\nDispatcher versions 4.1.11 and greater can be configured to respect a time-to-live (TTL) based content \"timeout\". Use this experiment to see how it works.\n\n[⇨ Effect of `/enableTTL`](experiments/enableTTL)\n\n## 6. Use of the `Dispatcher Optimizer Tool`\n\nA tool has been created to:\n- read (parse) a Dispatcher and Apache Httpd configuration\n- output detailed parsing errors\n- create a report indicating areas where the best practices were not followed\n\nThe tool can be run on any Dispatcher configuration, and optionally an associated Apache HTTPD configuration.\n\n[⇨ Running the Optimizer Tool](experiments/optimizer)\n\n### Contributing\n\nContributions are welcomed! Read the [Contributing Guide](./.github/CONTRIBUTING.md) for more information.\n\n### Licensing\n\nThis project is licensed under the Apache V2 License. See [LICENSE](LICENSE) for more information.\n","project_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2Fadobe%2Faem-dispatcher-experiments","html_url":"https://awesome.ecosyste.ms/projects/github.com%2Fadobe%2Faem-dispatcher-experiments","lists_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2Fadobe%2Faem-dispatcher-experiments/lists"}