25844402541
77%

Ran 14 May 2026 07:00AM UTC

Jobs 1

Files 64

Run time 1min

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Committed 13 May 2026 04:18PM UTC coverage: 80.18% (-2.9%) from 83.11%

Build # 25844402541

Build Type

push

github

Committed by

web-flow

Commit Message

Reduce lock contention on leafnode client  (#8139)

This series reduces lock contention on hub-side leaf connections:

- Start leafnode update traversal at a random offset to reduce lock
convoys.
- Use a client read lock for read only leaf permission checks, and move
deny filter setup to the delivery path so canSubscribe stays read-only.
- Disable subscribe permission sublist caches, since those caches can
still add lock contention even when callers only need a client read
lock.

Coverage Stats

74721 of 93191 relevant lines covered (80.18%)

569093.61 hits per line

Coverage Regressions

Lines	Coverage	∆	File
997	65.61	-24.41%	src/github.com/nats-io/nats-server/server/mqtt.go
692	64.83	-14.13%	src/github.com/nats-io/nats-server/server/opts.go
571	85.75	-0.52%	src/github.com/nats-io/nats-server/server/stream.go
486	80.93	-1.32%	src/github.com/nats-io/nats-server/server/raft.go
411	90.15	-3.33%	src/github.com/nats-io/nats-server/server/client.go
324	26.1	-64.54%	src/github.com/nats-io/nats-server/server/msgtrace.go
249	89.67	-0.4%	src/github.com/nats-io/nats-server/server/leafnode.go
175	66.64	-0.76%	src/github.com/nats-io/nats-server/server/websocket.go
124	0.0	-53.22%	src/github.com/nats-io/nats-server/server/proto.go
102	81.91	-9.66%	src/github.com/nats-io/nats-server/server/parser.go
45	56.79	-2.33%	src/github.com/nats-io/nats-server/server/reload.go
39	82.68	-0.07%	src/github.com/nats-io/nats-server/server/jetstream_cluster.go
36	88.74	-1.06%	src/github.com/nats-io/nats-server/server/server.go
26	85.49	-0.98%	src/github.com/nats-io/nats-server/server/events.go
24	86.56	-0.56%	src/github.com/nats-io/nats-server/server/accounts.go
23	78.34	-0.22%	src/github.com/nats-io/nats-server/server/filestore.go
19	75.14	-0.13%	src/github.com/nats-io/nats-server/server/jetstream_api.go
17	87.63	-0.02%	src/github.com/nats-io/nats-server/server/consumer.go
14	9.56	-10.29%	src/github.com/nats-io/nats-server/server/signal.go
11	93.73	-0.12%	src/github.com/nats-io/nats-server/server/gateway.go
11	71.98	-6.04%	src/github.com/nats-io/nats-server/server/log.go
10	82.88	-0.32%	src/github.com/nats-io/nats-server/server/route.go
8	87.81	-0.63%	src/github.com/nats-io/nats-server/server/auth.go
8	56.68	-0.49%	src/github.com/nats-io/nats-server/server/jetstream_errors_generated.go
8	76.96	-4.19%	src/github.com/nats-io/nats-server/server/jwt.go
6	87.28	-0.21%	src/github.com/nats-io/nats-server/server/monitor.go
5	91.3	-0.64%	src/github.com/nats-io/nats-server/server/jetstream_batching.go
3	83.96	-0.14%	src/github.com/nats-io/nats-server/server/jetstream.go
2	81.61	-0.1%	src/github.com/nats-io/nats-server/server/memstore.go
2	90.99	-0.17%	src/github.com/nats-io/nats-server/server/sublist.go
2	88.93	0.0%	src/github.com/nats-io/nats-server/server/util.go
1	80.25	-1.23%	src/github.com/nats-io/nats-server/server/errors.go

Jobs

ID	Job ID	Ran	Files	Coverage
1	25844402541.1	14 May 2026 07:00AM UTC	64	80.18	GitHub Action Run

nats-io / nats-server / 25844402541
77%

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nats-io / nats-server / 25844402541 77%

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nats-io / nats-server / 25844402541
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