[AIP-34] TaskGroup: A UI task grouping concept as an alternative to SubDagOperator #11119
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Both BaseOperator and XComArgs implement bit shift operators used to chain tasks in DAGs. By extracting this logic to new mixin we reduce code duplication and make it easier to implement it in the future. This change introduces also root property that allows us to reduce number of type checking. (cherry picked from 0779688)
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We started using |
…ubDagOperator apache#10153 (cherry picked from commit 49c193f)
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Hi @yuqian90 apologies but I need to close this as we're already feature freezed on 1.10. 2.0 Alpha is coming out in the next 1-2 weeks and at this point the only things we want to add to 1.10 are critical bugfixes and migration steps/scripts. Anyone who wants to use this feature will have full access to it when the alpha comes out :). |
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This PR is cherry-picked from #10153. It makes
TaskGroupwork with v1-10-test so that we can encourage more people to start usingTaskGroup.(
TaskMixinwas also cherry-picked from #10930).Limitations:
www_rbac/views.pyandgraph.htmlworks withTaskGroup. So users will only be use TaskGroup in Graph View if they haverbac = Trueunder[webserver]inairflow.cfg. This is becausewww/views.pyand graph.html has too many differences against the master branch, making it hard to merge. IfTaskGroupis used in DAGs but the webserver is not rbac, the Graph View will not break, it'll just appear likeTaskGroupwas never used. All tasks will appear on the original DAG normally.This was the original commit message in #10153:
This PR introduces
TaskGroup, which is a simple UI task grouping concept.What this PR does:
>>and<<operatorsWhat this PR does not do:
SubDagOperator. AlthoughTaskGroupis intended as an alternative forSubDagOperator, deprecatingSubDagOperatorwill need to be discussed/implemented in the future.TaskGrouphandling in the Graph View. In places such as Tree View, it will look like as-ifTaskGroupdoes not exist and all tasks are in the same flat DAG.GitHub Issue: #8078
AIP: https://cwiki.apache.org/confluence/display/AIRFLOW/AIP-34+TaskGroup%3A+A+UI+task+grouping+concept+as+an+alternative+to+SubDagOperator
This is the example_task_group that this PR adds:
