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8 Commits

Author SHA1 Message Date
Vincent Bernat
beb9a3f0ba build: add even more linting rules 
Notably, shorten function signatures by not repeating types.
 2025-11-12 22:43:12 +01:00
Vincent Bernat
434fbdd4ef outlet/routing: switch to GoBGP v4 2025-11-04 08:22:43 +01:00
Vincent Bernat
ffe696e0e1 common/helpers: rename NetIPTo6 to AddrTo6 2025-11-04 07:43:19 +01:00
Vincent Bernat
23518c3e2e common/helpers: add a NetIPTo6() function
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This should be netip.To6() but it does not exist and it was rejected.
There is a benchmark showing the improvment of such optimisation:

BenchmarkNetIPTo6/safe_v4-12            170152954                7.054 ns/op
BenchmarkNetIPTo6/unsafe_v4-12          764772190                1.553 ns/op

See https://github.com/golang/go/issues/54365.
 2025-11-03 21:36:33 +01:00
Vincent Bernat
ee6e197e8e chore: switch to math/rand/v2 2025-10-26 12:14:20 +01:00
Vincent Bernat
c155d34a43 inlet/outlet: add compile-time interface implementation check 
For "plugins" only.
 2025-09-02 22:28:28 +02:00
Vincent Bernat
03b947e3c5 chore: fix many staticcheck warnings 
The most important ones were fixed in the two previous commit.
 2025-08-02 20:54:49 +02:00
Vincent Bernat
ac68c5970e inlet: split inlet into new inlet and outlet 
This change split the inlet component into a simpler inlet and a new
outlet component. The new inlet component receive flows and put them in
Kafka, unparsed. The outlet component takes them from Kafka and resume
the processing from here (flow parsing, enrichment) and puts them in
ClickHouse.

The main goal is to ensure the inlet does a minimal work to not be late
when processing packets (and restart faster). It also brings some
simplification as the number of knobs to tune everything is reduced: for
inlet, we only need to tune the queue size for UDP, the number of
workers and a few Kafka parameters; for outlet, we need to tune a few
Kafka parameters, the number of workers and a few ClickHouse parameters.

The outlet component features a simple Kafka input component. The core
component becomes just a callback function. There is also a new
ClickHouse component to push data to ClickHouse using the low-level
ch-go library with batch inserts.

This processing has an impact on the internal representation of a
FlowMessage. Previously, it was tailored to dynamically build the
protobuf message to be put in Kafka. Now, it builds the batch request to
be sent to ClickHouse. This makes the FlowMessage structure hides the
content of the next batch request and therefore, it should be reused.
This also changes the way we decode flows as they don't output
FlowMessage anymore, they reuse one that is provided to each worker.

The ClickHouse tables are slightly updated. Instead of using Kafka
engine, the Null engine is used instead.

Fix #1122
 2025-07-27 21:44:28 +02:00