21159950506
85%

Ran 20 Jan 2026 06:00AM UTC

Jobs 1

Files 61

Run time 1min

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Committed 19 Jan 2026 04:50PM UTC coverage: 84.713% (-0.03%) from 84.742%

Build # 21159950506

Build Type

push

github

Committed by

web-flow

Commit Message

Subject tree-driven intersection (#7741)

The previous sublist-driven intersection could miss certain filters and
the attempt to fix this in #7739 suffered from other pathological cases
where more than one overlapping filter matched a given subject but
neither filter was a clear subset or superset of the other. This created
an impossible situation where we couldn't tiebreak without missing
subject literals.

I didn't really want to switch to driving this from the subject tree
instead, since the subject tree is nearly always larger. However a
simple optimisation where we can query the generic sublist to find out
whether there is interest "starting with" a partial filter allows us to
avoid the worst of the expensive overwalking as we walk the subject
tree.

Replaces #7739, replaces #7725. Fixes #7713, fixes #7726.

Signed-off-by: Neil Twigg <neil@nats.io>

Run Details

74211 of 87603 relevant lines covered (84.71%)

345109.35 hits per line

Uncovered Existing Lines

Lines	Coverage	∆	File
2	82.85	0.0%	src/github.com/nats-io/nats-server/server/filestore.go
2	90.28	0.12%	src/github.com/nats-io/nats-server/server/leafnode.go
2	90.11	-0.11%	src/github.com/nats-io/nats-server/server/reload.go
3	87.11	-0.04%	src/github.com/nats-io/nats-server/server/monitor.go
4	90.77	-0.38%	src/github.com/nats-io/nats-server/server/parser.go
7	74.12	0.28%	src/github.com/nats-io/nats-server/server/jetstream_api.go
8	86.26	-0.38%	src/github.com/nats-io/nats-server/server/events.go
8	79.39	0.04%	src/github.com/nats-io/nats-server/server/opts.go
8	86.0	-0.12%	src/github.com/nats-io/nats-server/server/stream.go
11	87.35	-0.09%	src/github.com/nats-io/nats-server/server/raft.go
11	90.04	-0.34%	src/github.com/nats-io/nats-server/server/server.go
15	86.83	-0.44%	src/github.com/nats-io/nats-server/server/accounts.go
21	82.48	0.1%	src/github.com/nats-io/nats-server/server/jetstream_cluster.go
28	92.63	-1.12%	src/github.com/nats-io/nats-server/server/route.go
29	93.89	-0.62%	src/github.com/nats-io/nats-server/server/client.go
70	91.34	3.54%	src/github.com/nats-io/nats-server/server/sublist.go

Jobs

ID	Job ID	Ran	Files	Coverage
1	21159950506.1	20 Jan 2026 06:00AM UTC	61	84.71	GitHub Action Run

nats-io / nats-server / 21159950506
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