16767894606
83%

Ran 06 Aug 2025 05:55AM UTC

Jobs 1

Files 59

Run time 1min

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Committed 05 Aug 2025 10:22AM UTC coverage: 85.852% (-0.06%) from 85.911%

Build # 16767894606

Build Type

push

github

Committed by

web-flow

Commit Message

(2.12) Atomic batch: support `Nats-Expected-Last-Sequence`, `Nats-Rollup`, `DiscardNew` (#7119)

Add support for the `Nats-Expected-Last-Sequence` and `Nats-Rollup`
headers for batching, as well as `DiscardNew` support.

To do this we need to be able to fully rely on clustered-level
consistency checks, such that followers will always apply them and never
call `bumpCLFS()`. Just a few cases remain, but these should not be
problematic. Now we can rely on `mset.clseq - mset.clfs` to be what the
highest last sequence is going to be, which can then be compared in
consistency checks.

`Nats-Rollup` additionally has some batch-specific consistency checks:
- `Nats-Rollup: all` is allowed only on the first message. Using it on
any later message would mean you'd be purging data at the start of the
batch.
- `Nats-Rollup: sub` is only allowed on the first message of a specific
subject. If allowed on a later message with the same subject, that would
mean you'd be purging data at the start of the batch. This means we can
allow rolling up multiple subjects in the batch at once.

Resolves https://github.com/nats-io/nats-server/issues/6975

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

Run Details

71649 of 83456 relevant lines covered (85.85%)

342560.18 hits per line

Uncovered Existing Lines

Lines	Coverage	∆	File
2	72.46	-0.45%	src/github.com/nats-io/nats-server/server/avl/seqset.go
2	84.53	0.05%	src/github.com/nats-io/nats-server/server/filestore.go
2	94.54	0.16%	src/github.com/nats-io/nats-server/server/gateway.go
2	82.76	-0.09%	src/github.com/nats-io/nats-server/server/jetstream.go
2	98.17	-1.83%	src/github.com/nats-io/nats-server/server/jetstream_versioning.go
5	86.25	-0.09%	src/github.com/nats-io/nats-server/server/events.go
14	86.58	-0.35%	src/github.com/nats-io/nats-server/server/accounts.go
15	95.28	0.13%	src/github.com/nats-io/nats-server/server/jetstream_batching.go
16	87.14	0.28%	src/github.com/nats-io/nats-server/server/memstore.go
21	73.06	-0.43%	src/github.com/nats-io/nats-server/server/jetstream_api.go
32	84.98	-1.02%	src/github.com/nats-io/nats-server/server/raft.go
34	87.85	-0.69%	src/github.com/nats-io/nats-server/server/consumer.go
581	86.1	0.12%	src/github.com/nats-io/nats-server/server/stream.go
791	81.12	-0.03%	src/github.com/nats-io/nats-server/server/jetstream_cluster.go

Jobs

ID	Job ID	Ran	Files	Coverage
1	16767894606.1	06 Aug 2025 05:55AM UTC	59	85.85	GitHub Action Run

nats-io / nats-server / 16767894606
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