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fix(sinks): Correct source acknowledgement precedence calculation (#26847) - #26966

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johannesfloriangeiger wants to merge 32 commits into
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johannesfloriangeiger:26847-ack-precedence
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johannesfloriangeiger wants to merge 32 commits into
vectordotdev:masterfrom
johannesfloriangeiger:26847-ack-precedence

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@johannesfloriangeiger

@johannesfloriangeiger johannesfloriangeiger commented Oct 30, 2026 •

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Summary

Fixes the error described in #26847 where the precedence of the acknowledgment calculation was incorrect as it preferred the global configuration over the sink configuration.

I have overhauled the PR after revisiting the existing code and realising that the config compile logic already considers global settings if the sink settings are unset, thus being correct by itself already and only being invalidated by the preference of the global settings in do_acknowledgements - thus, by removing that preference, leading to the correct result.

References

Closes: #26847

Vector configuration

See #26847.

How did you test this PR?

Unit test, manually.

Does this PR include user facing changes?

  • Yes. Please add a changelog fragment based on our guidelines.
  • No. A maintainer will apply the no-changelog label to this PR.

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@johannesfloriangeiger
johannesfloriangeiger requested a review from a team as a code owner October 30, 2026 14:00
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Codex Review Summary: ✅ Completed

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📝 Code Review ✅ Completed 2026-11-08T23:50:09.205960Z 0a652c7 New commits
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Bits Code Review: FAIL

The new acknowledgement test deterministically fails when global acknowledgements are enabled and sink acknowledgements are disabled. The supplied diff leaves the precedence implementation unchanged.

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🤖 Bits Code Review · Commit f2057b9

Comment thread src/config/source.rs Resolved

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Reviewed commit: f2057b95cc

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Comment thread src/config/source.rs Resolved
@github-actions github-actions Bot added the domain:sources Anything related to Vector's sources label Oct 30, 2026

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Comment thread src/config/mod.rs Resolved
@pront pront added the meta:awaiting author Pull requests that are awaiting their author. label Oct 30, 2026
@github-actions github-actions Bot removed the meta:awaiting author Pull requests that are awaiting their author. label Oct 31, 2026

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Comment thread src/config/mod.rs Resolved
Comment thread src/config/mod.rs Resolved
@github-actions github-actions Bot added domain:topology Anything related to Vector's topology code domain:core Anything related to core crates i.e. vector-core, core-common, etc labels Nov 1, 2026

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Comment thread src/config/source.rs Resolved
Comment thread src/config/mod.rs Resolved
Comment thread src/config/mod.rs Resolved

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Comment thread src/config/mod.rs Resolved

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Comment thread src/config/source.rs Resolved
@github-actions github-actions Bot removed domain:topology Anything related to Vector's topology code domain:sources Anything related to Vector's sources domain:core Anything related to core crates i.e. vector-core, core-common, etc labels Nov 5, 2026

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Comment thread src/config/source.rs Resolved

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http_server acknowledgements follow the global setting instead of the per-sink override

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