pegasas opened a new issue, #15330: URL: https://github.com/apache/dolphinscheduler/issues/15330
### Search before asking - [X] I had searched in the [issues](https://github.com/apache/dolphinscheduler/issues?q=is%3Aissue) and found no similar feature requirement. ### Description After seeing all local & large distributed job-scheduling framework, I found that we may consider extending a key process in job-scheduling ---- **Trigger**, which allows user to defines their custom trigger in distributed runtime environment. Apparently quartz has considered this situation, but not extend into distributed environment. seeing https://www.quartz-scheduler.org/documentation/quartz-2.1.7/tutorials/tutorial-lesson-04.html Also seeing our community is ready to support streaming task. streaming task is unbounded, which means that if we wants to combine it with bounded batch job, we must defined a new trigger type for that. With this mechanism, we could do better with combining streaming task & batch task. Here's our architecture. Benefits from the best plugin in dolphinscheduler. We should consider to add trigger SPI plugin. Overview: - All trigger should trigger by **Event** - **Event Delivery** should based either **Push** or **Pull** mode. - Trigger only at the start on the workflow for easy implementation. still needs to consider consistency between master/worker. ### Use case - Use case #1: TimerTrigger This is common case. which is currently widely supported by dophinscheduler and all other job-scheduling framework - Use case #2: MQTrigger for example, after receive a message with some pattern, we should start a new workflow. - Use case #3: HTTPTrigger/TCPTrigger/SMTPTrigger very popular. after we make a HTTP call with dophinscheduler-api, we should start a new workflow. even we can trigger pipeline after we receive an email from external 3p team. - Use case #4: Combine Streaming & Batch Job In common scenarios, we often use streaming to do some near-real-time OLAP job, which requires batch job for backfill supplyment in case some unexpected error happens in streaming. ### Related issues [[DSIP-16][Task] Support stream task](https://github.com/apache/dolphinscheduler/issues/11352) ### Are you willing to submit a PR? - [X] Yes I am willing to submit a PR! ### Code of Conduct - [X] I agree to follow this project's [Code of Conduct](https://www.apache.org/foundation/policies/conduct) -- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. To unsubscribe, e-mail: [email protected] For queries about this service, please contact Infrastructure at: [email protected]
