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Add the broker-comparison module

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Kafka, RabbitMQ and Pulsar measured side by side on ordering, replay and
consumer scaling by driving the three client libraries directly, plus an
operational-footprint measurement of each broker's own distribution.

Nine tests, three brokers started without Docker, and every number in the
documentation regenerated by scripts/run-all.sh.
This commit is contained in:
Ankur Mhatre
2026-09-01 23:27:08 +05:30
parent f4b0112e2c
commit e1f8aa7402
30 changed files with 1835 additions and 7 deletions
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broker-comparison/docs/output/kafka-replay.txt Normal file
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== Kafka: the log is the storage ==
group replay-group-1, first read : 12 records
group replay-group-2, brand new group : 12 records
group replay-group-1, after seekToBeginning: 12 records
Consuming does not remove anything. A consumer group is a cursor over a log
that the broker keeps until retention expires, so a new group, a reset
offset or a seek all read the same records again.