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kafkacat — generic producer and consumer for Apache Kafka


kafkacat -C | -P | -L -t topic [-p partition] -b brokers [, ...] [-D delim] [-K delim]
[-c cnt] [-X list] [-X prop=val] [-X dump] [-d dbg [, ...]] [-q] [-v] [-Z]
[specific options]
kafkacat -C [generic options] [-o offset] [-e] [-O] [-u] [-J] [-f fmtstr]
kafkacat -P [generic options] [-z snappy | gzip] [-p -1] [file [...]]
kafkacat -L [generic options] [-t topic]


kafkacat is a generic non-JVM producer and consumer for Apache Kafka 0.8, think of it as a
netcat for Kafka.

In producer mode ( -P ), kafkacat reads messages from stdin, delimited with a configurable
delimeter and produces them to the provided Kafka cluster, topic and partition. In consumer
mode ( -C ), kafkacat reads messages from a topic and partition and prints them to stdout
using the configured message delimiter.

If neither -P or -C are specified kafkacat attempts to figure out the mode automatically
based on stdin/stdout tty types.

kafkacat also features a metadata list mode ( -L ), to display the current state of the
Kafka cluster and its topics and partitions.

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