@ancient-wolf-19325 I'm using flyte v1. Does the chaining operator >> work for dynamic workflows?

No, in Flyte v1, the chaining operator (>>) does not work as expected for dynamic workflows, especially in local execution. Chaining tasks, subworkflows, or launch plans using >> is only supported when running on a Flyte cluster, not locally. Attempting to use >> in dynamic workflows locally will either have no effect on execution order or may raise errors such as TypeError or "'Output' object has no attribute 'ref'" in certain contexts. This limitation is documented and tracked in open issues, and workarounds involve explicitly managing dependencies via data flow or using node references, but native chaining is not supported in dynamic workflows in v1 local runs. For more, see the official documentation and related issues: chaining is not supported locally (docs), and see GitHub Issue #4080, GitHub Issue #2692, and GitHub Issue #5393. Would you like more detail or code examples on how to manage dependencies in dynamic workflows? Sources: - GitHub Issue #2692 - GitHub Issue #5393 - docs - GitHub Issue #4080 👍 0 button 👎 0 button 💡 Hint: Mention @runllm in the thread for followups.

@ancient-wolf-19325 I'm not running things locally.

If you are not running locally and are executing on a Flyte cluster, the chaining operator (>>) does work for dynamic workflows in Flyte v1. You can chain tasks, subworkflows, and launch plans using >> to enforce execution order without explicit data dependencies, and this will be respected by the Flyte cluster during execution (docs). Would you like more detail or example code for chaining in dynamic workflows on the cluster? Sources: - docs 👍 0 button 👎 0 button 💡 Hint: Mention @runllm in the thread for followups.

@ancient-wolf-19325 For me using it in dynamic workflows just doesn't work. Is there a reason why? Are there any more elegant workarounds? Elaborate on the node references solution.

The chaining operator (>>) is not fully supported inside dynamic workflows, even on the cluster, due to how Flyte compiles and executes dynamic workflows. In dynamic workflows, the DAG is constructed at runtime, and the chaining operator does not always establish upstream dependencies as expected—this is a known limitation and is tracked in issues like #2692 and #5393. As a result, tasks may run in parallel instead of sequentially, and using >> may have no effect. A more reliable workaround is to explicitly pass outputs as inputs to enforce dependencies, or, for advanced users, to reference the underlying node objects. For remote entities, you can chain using their node references, e.g.,

remote_entity_1.output1.ref.node >> remote_entity_2.output1.ref.node

, but this is not very elegant and can be error-prone (#5393). There is no fully elegant solution; explicit data dependencies remain the most robust method. Would you like a step-by-step example of using node references or explicit data dependencies in dynamic workflows? Sources: - GitHub Issue #2692 - GitHub Issue #5393 👍 0 button 👎 0 button 💡 Hint: Mention @runllm in the thread for followups.