打开kafka消费者端
这个是0.9之后的打开方式
/usr/java/kafka_2.12-2.2.0/bin/kafka-console-consumer.sh --bootstrap-server localhost:9092 --topic test --from-beginning
这个是0.9之前的打开方式
/usr/java/kafka_2.12-2.2.0/bin/kafka-console-consumer.sh --zookeeper localhost:2181 --topic test --from-beginning
如果0.9之后使用这个命令打开会报这样的错误
zookeeper is not a recognized option
Option Description
------ -----------
--bootstrap-server <String: server to REQUIRED: The server(s) to connect to.
connect to>
--consumer-property <String: A mechanism to pass user-defined
consumer_prop> properties in the form key=value to
the consumer.
--consumer.config <String: config file> Consumer config properties file. Note
that [consumer-property] takes
precedence over this config.
--enable-systest-events Log lifecycle events of the consumer
in addition to logging consumed
messages. (This is specific for
system tests.)
--formatter <String: class> The name of a class to use for
formatting kafka messages for
display. (default: kafka.tools.
DefaultMessageFormatter)
--from-beginning If the consumer does not already have
an established offset to consume
from, start with the earliest
message present in the log rather
than the latest message.
--group <String: consumer group id> The consumer group id of the consumer.
--help Print usage information.
--isolation-level <String> Set to read_committed in order to
filter out transactional messages
which are not committed. Set to
read_uncommittedto read all
messages. (default: read_uncommitted)
--key-deserializer <String:
deserializer for key>
--max-messages <Integer: num_messages> The maximum number of messages to
consume before exiting. If not set,
consumption is continual.
--offset <String: consume offset> The offset id to consume from (a non-
negative number), or 'earliest'
which means from beginning, or
'latest' which means from end
(default: latest)
--partition <Integer: partition> The partition to consume from.
Consumption starts from the end of
the partition unless '--offset' is
specified.
--property <String: prop> The properties to initialize the
message formatter. Default
properties include:
print.timestamp=true|false
print.key=true|false
print.value=true|false
key.separator=<key.separator>
line.separator=<line.separator>
key.deserializer=<key.deserializer>
value.deserializer=<value.
deserializer>
Users can also pass in customized
properties for their formatter; more
specifically, users can pass in
properties keyed with 'key.
deserializer.' and 'value.
deserializer.' prefixes to configure
their deserializers.
--skip-message-on-error If there is an error when processing a
message, skip it instead of halt.
--timeout-ms <Integer: timeout_ms> If specified, exit if no message is
available for consumption for the
specified interval.
--topic <String: topic> The topic id to consume on.
--value-deserializer <String:
deserializer for values>
--whitelist <String: whitelist> Regular expression specifying
whitelist of topics to include for
consumption.