Does Replication Throttling Work with "*"

[Jason Taylor]

Hello,

Has anyone successfully made replication throttling work? I am doing the
following on Apache Kafka 3.5

./kafka_2.13-3.7.1/bin/kafka-configs.sh \
  --bootstrap-server $BROKERS \
  --entity-type brokers \
  --entity-default \
  --alter \
  --add-config leader.replication.throttled.rate=50000000 \
  --command-config client.properties

./kafka_2.13-3.7.1/bin/kafka-configs.sh \
  --bootstrap-server $BROKERS \
  --entity-type brokers \
  --entity-default \
  --alter \
  --add-config follower.replication.throttled.rate=50000000 \
  --command-config client.properties

TOPICS=$(./kafka_2.13-3.7.1/bin/kafka-topics.sh --bootstrap-server
$BROKERS --list --command-config client.properties)
for TOPIC in $TOPICS; do
  echo "Applying throttle to topic: $TOPIC"
  ./kafka_2.13-3.7.1/bin/kafka-configs.sh \
    --bootstrap-server $BROKERS \
    --entity-type topics \
    --entity-name $TOPIC \
    --alter \
    --add-config
leader.replication.throttled.replicas=*,follower.replication.throttled.replicas=*
\
    --command-config client.properties
done

I have verified that the settings are visible when describing dynamic
configs for both topic and broker. If I then stop a broker to build up a
replication backlog and restart I still see a burst in replication bytes
in/out well beyond 50MB.

Many Thanks,
Jason