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[FIXED] Interest stream desync after consumer filter update#7773

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neilalexander merged 1 commit intomainfrom
maurice/interest-desync
Jan 27, 2026
Merged

[FIXED] Interest stream desync after consumer filter update#7773
neilalexander merged 1 commit intomainfrom
maurice/interest-desync

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@MauriceVanVeen
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@MauriceVanVeen MauriceVanVeen commented Jan 27, 2026

An interest-based replicated stream could desync after a consumer filter update, with new messages being persisted on some but not all replicas. This was due to the sublist being cleared and only updated for the server that's the consumer leader. The stream on the consumer leader would persist the messages, but followers wouldn't.

Resolves #7760

Signed-off-by: Maurice van Veen github@mauricevanveen.com

Signed-off-by: Maurice van Veen <github@mauricevanveen.com>
@MauriceVanVeen MauriceVanVeen requested a review from a team as a code owner January 27, 2026 07:52
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@sciascid sciascid left a comment

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LGTM

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@neilalexander neilalexander left a comment

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LGTM

@neilalexander neilalexander merged commit d345774 into main Jan 27, 2026
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@neilalexander neilalexander deleted the maurice/interest-desync branch January 27, 2026 09:46
This was referenced Jan 27, 2026
neilalexander added a commit that referenced this pull request Jan 27, 2026
Includes the following:

- #7772
- #7773
- #7769
- #7766

Signed-off-by: Neil Twigg <neil@nats.io>
neilalexander added a commit that referenced this pull request Jan 27, 2026
Includes the following:

- #7772
- #7773
- #7769
- #7766

Signed-off-by: Neil Twigg <neil@nats.io>
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Consumer filter subjects stop matching after leader step-down

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