Cronflower brings DAG workflow orchestration to Spring Boot clusters

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An open-source tool called Cronflower has been released for Spring Boot applications, offering distributed DAG-based workflow orchestration as an alternative to chained cron jobs. The project addresses a common pain point where teams rely on time-buffered cron jobs to sequence tasks, with no guarantee of ordering or dependency management. Cronflower lets developers declare workflow steps as Spring beans using annotations, with nodes, edges, and join conditions defined in code. Concurrent writes to shared state are handled through built-in channel reducers, eliminating race conditions without manual locking. The tool also supports conditional routing, subgraph composition, and dynamic fan-out, and includes a web console for visualising declared workflows before execution.

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