Broadcast cancellation to only nodes have outstanding child tasks #54779
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…astic#54312) Today when canceling a task we broadcast ban/unban requests to all nodes in the cluster. This strategy does not scale well for hierarchical cancellation. With this change, we will track outstanding child requests and broadcast the cancellation to only nodes that have outstanding child tasks. This change also prevents a parent task from sending child requests once it got canceled. Relates elastic#50990 Supersedes elastic#51157 Co-authored-by: Igor Motov <[email protected]> Co-authored-by: Yannick Welsch <[email protected]>
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Pushed to 7.x |
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Backport #54312