Kafka operation and maintenance command Daquan

1, cluster management

Reception starts broker

bin/kafka-server-start.sh <path>/server.properties

Ctrl + C Close

Start broker background

bin/kafka-server-start.sh -daemon <path>/server.properties

Close broker

bin/kafka-server-stop.sh

2, Topic management

Creating topic

bin/kafka-topics.sh --create --zookeeper localhost:2181 --partitions 3 --replication-factor 3 --topic topicname 

Delete topic

bin/kafka-topics.sh --delete --zookeeper localhost:2181 --topic topicname 

Queries topic list

bin/kafka-topics.sh --zookeeper localhost:2181 --list

Queries topic details

bin/kafka-topics.sh --zookeeper localhost:2181 --describe --topic topicname 

Modify topic

bin/kafka-topics.sh --alter --zookeeper localhost:2181 --partitions 6 --topic topicname 

3, Consumer-Groups Management

Queries consumer group

bin/kafka-consumer-groups.sh --bootstrap-server localhost:9092 --list 

Queries consumer group details

bin/kafka-consumer-groups.sh --bootstrap-server localhost:9092 --describe --group groupname 

Reset consumer group displacement

最早处
bin/kafka-consumer-groups.sh --bootstrap-server localhost:9092 --group groupname --reset-offsets --all-topics --to-earliest --execute
最新处
bin/kafka-consumer-groups.sh --bootstrap-server localhost:9092 --group groupname --reset-offsets --all-topics --to-latest --execute
某个位置
bin/kafka-consumer-groups.sh --bootstrap-server localhost:9092 --group groupname --reset-offsets --all-topics --to-offset 2000 --execute
调整到某个时间之后得最早位移
bin/kafka-consumer-groups.sh --bootstrap-server localhost:9092 --group groupname --reset-offsets --all-topics --to-datetime 2019-09-15T00:00:00.000

Delete consumer group

bin/kafka-consumer-groups.sh --zookeeper localhost:2181 --delete --group groupname

4, scripting tools

producer script

bin/kafka-console-producer.sh --broker-list localhost:9092 --topic topicname 
参数含义：
--compression-codec lz4  压缩类型
--request-required-acks all acks的值
--timeout 3000  linger.ms的值
--message-send-max-retries 10   retries的值
--max-partition-memory-bytes batch.size值

consumer script

bin/kafka-console-consumer.sh --bootstrap-server localhost:9092 --topic topicname --from-beginning
指定groupid
bin/kafka-console-consumer.sh --bootstrap-server localhost:9092 --topic topicname --from-beginning
--consumer-property group.id=old-consumer-group
指定分区
bin/kafka-console-consumer.sh --bootstrap-server localhost:9092 --topic topicname --from-beginning
--partition 0

kafka-run-class script

kafka-run-class.sh kafka.tools.ConsoleConsumer   就是 kafka-console-consumer.sh
kafka-run-class.sh kafka.tools.ConsoleProducer   就是 kafka-console-producer.sh

Gets the current number of messages topic

kafka-run-class.sh kafka.tools.GetOffsetShell --broker-list localhost:9092 --topic topicname --time -1

--time -1 represents the maximum displacement of the first displacement represented --time -2

Query _consumer_offsets

bin/kafka-simple-consumer-shell.sh --topic _consumer_offsets --partition 12 --broker-list localhost:9092 --formatter "kafka.coorfinator.GroupMetadataManager\$OffsetsMessageFormatter"

5、MirrorMaker

Cross-room disaster recovery tool

bin/kafka-mirror-maker.sh --consumer.config consumer.properties --producer.config producer.properties --whitelist topicA|topicB

More real-time calculation, Flink, Kafka and other related technologies Bowen, welcome attention to calculate real-time streaming