热门标签
热门文章
- 1【三种常见架构开发模式：MVC、MVP、MVVM】_除了mvc还有什么架构
- 2Django14：中间件_django.middleware.clickjacking.xframeoptionsmiddle
- 3关于Reference to 'xxxxx' is ambiguous 错误_reference to is ambiguous
- 4通过ADB命令模拟按键的短按和长按_adb长按命令
- 5Android逆向之旅—Hook神器Frida使用详解_frida hook教程
- 6807软件工程专业综合_807程序综合设计考什么
- 7如何搭建个人网站_个人网站 csdm
- 8说说我的PMP认证考试_pmp代考骗局
- 9【Windows服务删除“服务“】_windows删除服务命令
- 10LSTM时间序列数据训练+预测的基本实现
当前位置: article > 正文
Kafka 命令行操作_kafka-console-producer.sh
作者：IT小白 | 2024-02-12 20:54:54
赞
踩
kafka-console-producer.sh
查看上篇文章：Kafka集群安装，配置一下环境变量，下面操作就不带绝对路径了。
比如 执行 /home/vagrant/kafka_2.12-3.0.0/bin/kafka-topics.sh 查看操作主题命令参数，直接 执行 kafka-topics.sh 就完事，因为配置了环境变量，有不明白的小伙伴，可以直接百度：Centos7 如何配置环境变量
主题命令行操作
查看操作主题命令参数
kafka-topics.sh 脚本使用参数列表：
[vagrant@localhost kafka_2.12-3.0.0]$ kafka-topics.sh Create, delete, describe, or change a topic. Option Description ------ ----------- --alter Alter the number of partitions, replica assignment, and/or configuration for the topic. --at-min-isr-partitions if set when describing topics, only show partitions whose isr count is equal to the configured minimum. --bootstrap-server <String: server to REQUIRED: The Kafka server to connect connect to> to. --command-config <String: command Property file containing configs to be config property file> passed to Admin Client. This is used only with --bootstrap-server option for describing and altering broker configs. --config <String: name=value> A topic configuration override for the topic being created or altered. The following is a list of valid configurations: cleanup.policy compression.type delete.retention.ms file.delete.delay.ms flush.messages flush.ms follower.replication.throttled. replicas index.interval.bytes leader.replication.throttled.replicas local.retention.bytes local.retention.ms max.compaction.lag.ms max.message.bytes message.downconversion.enable message.format.version message.timestamp.difference.max.ms message.timestamp.type min.cleanable.dirty.ratio min.compaction.lag.ms min.insync.replicas preallocate remote.storage.enable retention.bytes retention.ms segment.bytes segment.index.bytes segment.jitter.ms segment.ms unclean.leader.election.enable See the Kafka documentation for full details on the topic configs. It is supported only in combination with -- create if --bootstrap-server option is used (the kafka-configs CLI supports altering topic configs with a --bootstrap-server option). --create Create a new topic. --delete Delete a topic --delete-config <String: name> A topic configuration override to be removed for an existing topic (see the list of configurations under the --config option). Not supported with the --bootstrap-server option. --describe List details for the given topics. --disable-rack-aware Disable rack aware replica assignment --exclude-internal exclude internal topics when running list or describe command. The internal topics will be listed by default --help Print usage information. --if-exists if set when altering or deleting or describing topics, the action will only execute if the topic exists. --if-not-exists if set when creating topics, the action will only execute if the topic does not already exist. --list List all available topics. --partitions <Integer: # of partitions> The number of partitions for the topic being created or altered (WARNING: If partitions are increased for a topic that has a key, the partition logic or ordering of the messages will be affected). If not supplied for create, defaults to the cluster default. --replica-assignment <String: A list of manual partition-to-broker broker_id_for_part1_replica1 : assignments for the topic being broker_id_for_part1_replica2 , created or altered. broker_id_for_part2_replica1 : broker_id_for_part2_replica2 , ...> --replication-factor <Integer: The replication factor for each replication factor> partition in the topic being created. If not supplied, defaults to the cluster default. --topic <String: topic> The topic to create, alter, describe or delete. It also accepts a regular expression, except for --create option. Put topic name in double quotes and use the '\' prefix to escape regular expression symbols; e. g. "test\.topic". --topics-with-overrides if set when describing topics, only show topics that have overridden configs --unavailable-partitions if set when describing topics, only show partitions whose leader is not available --under-min-isr-partitions if set when describing topics, only show partitions whose isr count is less than the configured minimum. --under-replicated-partitions if set when describing topics, only show under replicated partitions --version Display Kafka version.
- 1
- 2
- 3
- 4
- 5
- 6
- 7
- 8
- 9
- 10
- 11
- 12
- 13
- 14
- 15
- 16
- 17
- 18
- 19
- 20
- 21
- 22
- 23
- 24
- 25
- 26
- 27
- 28
- 29
- 30
- 31
- 32
- 33
- 34
- 35
- 36
- 37
- 38
- 39
- 40
- 41
- 42
- 43
- 44
- 45
- 46
- 47
- 48
- 49
- 50
- 51
- 52
- 53
- 54
- 55
- 56
- 57
- 58
- 59
- 60
- 61
- 62
- 63
- 64
- 65
- 66
- 67
- 68
- 69
- 70
- 71
- 72
- 73
- 74
- 75
- 76
- 77
- 78
- 79
- 80
- 81
- 82
- 83
- 84
- 85
- 86
- 87
- 88
- 89
- 90
- 91
- 92
- 93
- 94
- 95
- 96
- 97
- 98
- 99
- 100
- 101
- 102
- 103
- 104
- 105
- 106
- 107
- 108
- 109
- 110
- 111
- 112
- 113
- 114
- 115
常用参数
| 参数 | 描述 |
|---|---|
| –bootstrap-server <String: server toconnect to> | 连接的 Kafka Broker 主机名称和端口号。 |
| –topic <String: topic> | 操作的 topic 名称。 |
| –create | 创建主题。 |
| –delete | 删除主题。 |
| –alter | 修改主题。 |
| –list | 查看所有主题。 |
| –describe | 查看主题详细描述。 |
| –partitions <Integer: # of partitions> | 设置分区数。 |
| –replication-factor<Integer: replication factor> | 设置分区副本。 |
| –config <String: name=value> | 更新系统默认的配置。 |
查看当前服务器中的所有 topic
[vagrant@localhost config]$ /home/vagrant/kafka_2.12-3.0.0/bin/kafka-topics.sh --bootstrap-server kafka1:9092,kafka2:9092,kafka3:9092 --list
- 1
没有topic，显示空行
创建topic
创建 first topic
[vagrant@localhost bin]$ /home/vagrant/kafka_2.12-3.0.0/bin/kafka-topics.sh --bootstrap-server kafka1:9092,kafka2:9092,kafka3:9092 --create --partitions 1 --replication-factor 3 --topic first
Created topic first.
- 1
- 2
选项说明：
--topic定义 topic 名--replication-factor定义副本数--partitions定义分区数
查看 first 主题的详情
[vagrant@localhost bin]$ /home/vagrant/kafka_2.12-3.0.0/bin/kafka-topics.sh --bootstrap-server kafka1:9092,kafka2:9092,kafka3:9092 --describe --topic first
Topic: first TopicId: YDkyV_QwSoCdutAXiMkzig PartitionCount: 1 ReplicationFactor: 3 Configs: segment.bytes=1073741824
Topic: first Partition: 0 Leader: 0 Replicas: 0,2,1 Isr: 0,2,1
- 1
- 2
- 3
修改分区数
注意：分区数只能增加，不能减少
[vagrant@localhost config]$ kafka-topics.sh --bootstrap-server kafka1:9092,kafka2:9092,kafka3:9092 --alter --topic first --partitions 3
[vagrant@localhost config]$ kafka-topics.sh --bootstrap-server kafka1:9092,kafka2:9092,kafka3:9092 --describe --topic first
Topic: first TopicId: YDkyV_QwSoCdutAXiMkzig PartitionCount: 3 ReplicationFactor: 3 Configs: segment.bytes=1073741824
Topic: first Partition: 0 Leader: 0 Replicas: 0,2,1 Isr: 0,2,1
Topic: first Partition: 1 Leader: 1 Replicas: 1,2,0 Isr: 1,2,0
Topic: first Partition: 2 Leader: 2 Replicas: 2,0,1 Isr: 2,0,1
- 1
- 2
- 3
- 4
- 5
- 6
删除 topic
kafka-topics.sh --bootstrap-server kafka1:9092,kafka2:9092,kafka3:9092 --delete --topic first
- 1
生产者命令行操作
生产者命令参数
[vagrant@localhost config]$ kafka-console-producer.sh Missing required option(s) [bootstrap-server] Option Description ------ ----------- --batch-size <Integer: size> Number of messages to send in a single batch if they are not being sent synchronously. (default: 200) --bootstrap-server <String: server to REQUIRED unless --broker-list connect to> (deprecated) is specified. The server (s) to connect to. The broker list string in the form HOST1:PORT1,HOST2: PORT2. --broker-list <String: broker-list> DEPRECATED, use --bootstrap-server instead; ignored if --bootstrap- server is specified. The broker list string in the form HOST1:PORT1, HOST2:PORT2. --compression-codec [String: The compression codec: either 'none', compression-codec] 'gzip', 'snappy', 'lz4', or 'zstd'. If specified without value, then it defaults to 'gzip' --help Print usage information. --line-reader <String: reader_class> The class name of the class to use for reading lines from standard in. By default each line is read as a separate message. (default: kafka. tools. ConsoleProducer$LineMessageReader) --max-block-ms <Long: max block on The max time that the producer will send> block for during a send request (default: 60000) --max-memory-bytes <Long: total memory The total memory used by the producer in bytes> to buffer records waiting to be sent to the server. (default: 33554432) --max-partition-memory-bytes <Long: The buffer size allocated for a memory in bytes per partition> partition. When records are received which are smaller than this size the producer will attempt to optimistically group them together until this size is reached. (default: 16384) --message-send-max-retries <Integer> Brokers can fail receiving the message for multiple reasons, and being unavailable transiently is just one of them. This property specifies the number of retries before the producer give up and drop this message. (default: 3) --metadata-expiry-ms <Long: metadata The period of time in milliseconds expiration interval> after which we force a refresh of metadata even if we haven't seen any leadership changes. (default: 300000) --producer-property <String: A mechanism to pass user-defined producer_prop> properties in the form key=value to the producer. --producer.config <String: config file> Producer config properties file. Note that [producer-property] takes precedence over this config. --property <String: prop> A mechanism to pass user-defined properties in the form key=value to the message reader. This allows custom configuration for a user- defined message reader. Default properties include: parse.key=true|false key.separator=<key.separator> ignore.error=true|false --request-required-acks <String: The required acks of the producer request required acks> requests (default: 1) --request-timeout-ms <Integer: request The ack timeout of the producer timeout ms> requests. Value must be non-negative and non-zero (default: 1500) --retry-backoff-ms <Integer> Before each retry, the producer refreshes the metadata of relevant topics. Since leader election takes a bit of time, this property specifies the amount of time that the producer waits before refreshing the metadata. (default: 100) --socket-buffer-size <Integer: size> The size of the tcp RECV size. (default: 102400) --sync If set message send requests to the brokers are synchronously, one at a time as they arrive. --timeout <Integer: timeout_ms> If set and the producer is running in asynchronous mode, this gives the maximum amount of time a message will queue awaiting sufficient batch size. The value is given in ms. (default: 1000) --topic <String: topic> REQUIRED: The topic id to produce messages to. --version Display Kafka version.
- 1
- 2
- 3
- 4
- 5
- 6
- 7
- 8
- 9
- 10
- 11
- 12
- 13
- 14
- 15
- 16
- 17
- 18
- 19
- 20
- 21
- 22
- 23
- 24
- 25
- 26
- 27
- 28
- 29
- 30
- 31
- 32
- 33
- 34
- 35
- 36
- 37
- 38
- 39
- 40
- 41
- 42
- 43
- 44
- 45
- 46
- 47
- 48
- 49
- 50
- 51
- 52
- 53
- 54
- 55
- 56
- 57
- 58
- 59
- 60
- 61
- 62
- 63
- 64
- 65
- 66
- 67
- 68
- 69
- 70
- 71
- 72
- 73
- 74
- 75
- 76
- 77
- 78
- 79
- 80
- 81
- 82
- 83
- 84
- 85
- 86
- 87
- 88
- 89
- 90
- 91
- 92
- 93
| 参数 | 描述 |
|---|---|
| –bootstrap-server <String: server toconnect to> | 连接的 Kafka Broker 主机名称和端口号。 |
| –topic <String: topic> | 操作的 topic 名称。 |
发送消息
[vagrant@localhost config]$ kafka-console-producer.sh --bootstrap-server kafka1:9092 --topic first
>hello1
- 1
- 2
先发一个消息：hello1
消费者命令行操作
消费者命令参数
[vagrant@localhost bin]$ kafka-console-consumer.sh This tool helps to read data from Kafka topics and outputs it to standard output. 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. --include <String: Java regex (String)> Regular expression specifying list of topics to include for consumption. --isolation-level <String> Set to read_committed in order to filter out transactional messages which are not committed. Set to read_uncommitted to 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 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.offset=true|false print.partition=true|false print.headers=true|false print.value=true|false key.separator=<key.separator> line.separator=<line.separator> headers.separator=<line.separator> null.literal=<null.literal> key.deserializer=<key.deserializer> value.deserializer=<value. deserializer> header.deserializer=<header. deserializer> Users can also pass in customized properties for their formatter; more specifically, users can pass in properties keyed with 'key. deserializer.', 'value. deserializer.' and 'headers. 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 to consume on. --value-deserializer <String: deserializer for values> --version Display Kafka version. --whitelist <String: Java regex DEPRECATED, use --include instead; (String)> ignored if --include specified. Regular expression specifying list of topics to include for consumption.
- 1
- 2
- 3
- 4
- 5
- 6
- 7
- 8
- 9
- 10
- 11
- 12
- 13
- 14
- 15
- 16
- 17
- 18
- 19
- 20
- 21
- 22
- 23
- 24
- 25
- 26
- 27
- 28
- 29
- 30
- 31
- 32
- 33
- 34
- 35
- 36
- 37
- 38
- 39
- 40
- 41
- 42
- 43
- 44
- 45
- 46
- 47
- 48
- 49
- 50
- 51
- 52
- 53
- 54
- 55
- 56
- 57
- 58
- 59
- 60
- 61
- 62
- 63
- 64
- 65
- 66
- 67
- 68
- 69
- 70
- 71
- 72
- 73
- 74
- 75
- 76
- 77
- 78
- 79
- 80
- 81
- 82
- 83
- 84
- 85
- 86
- 87
| 参数 | 描述 |
|---|---|
| –bootstrap-server <String: server toconnect to> | 连接的 Kafka Broker 主机名称和端口号。 |
| –topic <String: topic> | 操作的 topic 名称。 |
| –from-beginning | 从头开始消费。 |
| –group <String: consumer group id> | 指定消费者组名称。 |
消费消息
消费 first 主题中的数据
[vagrant@localhost bin]$ kafka-console-consumer.sh --bootstrap-server kafka3:9092 --topic first
- 1
这是就会看到控制台上没有消息，因为消费者在生产者发送hello1消息之后启动的，现在生产者接着发消息hello2 ，这时消费者就能消费到：
[vagrant@localhost bin]$ kafka-console-consumer.sh --bootstrap-server kafka3:9092 --topic first
hello2
- 1
- 2
把主题中所有的数据都读取出来（包括历史数据）
[vagrant@localhost bin]$ kafka-console-consumer.sh --bootstrap-server kafka1:9092,kafka2:9092,kafka3:9092 --from-beginning --topic first
- 1
声明：本文内容由网友自发贡献，不代表【wpsshop博客】立场，版权归原作者所有，本站不承担相应法律责任。如您发现有侵权的内容，请联系我们。转载请注明出处：https://www.wpsshop.cn/w/IT小白/article/detail/78572
推荐阅读
- swagger：swagger 引入
[详细] 赞
踩
相关标签
