kafka的集群安装及配置文件说明

--------------------------------------------------------前提--------------------------------

1、安装好  zookeeper集群

2、安装好  java jdk

目的：配置三台机器的kafka集群

名字机器节点名字：master，worker1，worker2

--------------------------------------------------------目录---------------------------------

kafka的安装

kafka的配置

kafka的连接实验

zookeeper客户端下查看运行信息

其他配置说明

----------------------------------------------------------------------------------------

1、下载kafka软件

https://kafka.apache.org/downloads.html

选择自己的版本下面是我选择的版本

2、下载解压到自己想要的文件下，我kafka地址：/usr/local/kafka

3、配置文件（server.properties）

master的配置文件如下：

# Licensed to the Apache Software Foundation (ASF) under one or more# contributor license agreements.  See the NOTICE file distributed with# this work for additional information regarding copyright ownership.# The ASF licenses this file to You under the Apache License, Version 2.0# (the "License"); you may not use this file except in compliance with# the License.  You may obtain a copy of the License at##    http://www.apache.org/licenses/LICENSE-2.0## Unless required by applicable law or agreed to in writing, software# distributed under the License is distributed on an "AS IS" BASIS,# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.# See the License for the specific language governing permissions and# limitations under the License.# see kafka.server.KafkaConfig for additional details and defaults############################# Server Basics ############################## The id of the broker. This must be set to a unique integer for each broker.broker.id=0  #每个broker id############################# Socket Server Settings #############################listeners=PLAINTEXT://:9092# The port the socket server listens onport=9092# Hostname the broker will bind to. If not set, the server will bind to all interfaceshost.name=master# Hostname the broker will advertise to producers and consumers. If not set, it uses the# value for "host.name" if configured.  Otherwise, it will use the value returned from# java.net.InetAddress.getCanonicalHostName().advertised.host.name=master# The port to publish to ZooKeeper for clients to use. If this is not set,# it will publish the same port that the broker binds to.#advertised.port=<port accessible by clients># The number of threads handling network requestsnum.network.threads=3# The number of threads doing disk I/Onum.io.threads=8# The send buffer (SO_SNDBUF) used by the socket serversocket.send.buffer.bytes=102400#cache的大小，存储這么多就开始发送# The receive buffer (SO_RCVBUF) used by the socket serversocket.receive.buffer.bytes=102400#1m# The maximum size of a request that the socket server will accept (protection against OOM)socket.request.max.bytes=104857600#请求信息的最大数，不能超过java堆栈的大小############################# Log Basics ############################## A comma seperated list of directories under which to store log fileslog.dirs=/usr/local/kafka/logs#可<span style="font-family: Arial, Helvetica, sans-serif;">多个，中间</span><span style="font-family: Arial, Helvetica, sans-serif;">用逗号分开，新建的topic存储的时候是看那个更少就存那个</span># The default number of log partitions per topic. More partitions allow greater# parallelism for consumption, but this will also result in more files across# the brokers.num.partitions=2# The number of threads per data directory to be used for log recovery at startup and flushing at shutdown.# This value is recommended to be increased for installations with data dirs located in RAID array.num.recovery.threads.per.data.dir=1############################# Log Flush Policy ############################## Messages are immediately written to the filesystem but by default we only fsync() to sync# the OS cache lazily. The following configurations control the flush of data to disk.# There are a few important trade-offs here:#    1. Durability: Unflushed data may be lost if you are not using replication.#    2. Latency: Very large flush intervals may lead to latency spikes when the flush does occur as there will be a lot of data to flush.#    3. Throughput: The flush is generally the most expensive operation, and a small flush interval may lead to exceessive seeks.# The settings below allow one to configure the flush policy to flush data after a period of time or# every N messages (or both). This can be done globally and overridden on a per-topic basis.# The number of messages to accept before forcing a flush of data to disk#log.flush.interval.messages=10000# The maximum amount of time a message can sit in a log before we force a flush#log.flush.interval.ms=1000############################# Log Retention Policy ############################## The following configurations control the disposal of log segments. The policy can# be set to delete segments after a period of time, or after a given size has accumulated.# A segment will be deleted whenever *either* of these criteria are met. Deletion always happens# from the end of the log.# The minimum age of a log file to be eligible for deletionlog.retention.hours=168#保存7天# A size-based retention policy for logs. Segments are pruned from the log as long as the remaining# segments don't drop below log.retention.bytes.#log.retention.bytes=1073741824#默认消息不可以超出的大小# The maximum size of a log segment file. When this size is reached a new log segment will be created.log.segment.bytes=1073741824#消息持久化文件的最大化大小。超过会新起一个# The interval at which log segments are checked to see if they can be deleted according# to the retention policieslog.retention.check.interval.ms=300000#多长时间检查一次连接情况############################# Zookeeper ############################## Zookeeper connection string (see zookeeper docs for details).# This is a comma separated host:port pairs, each corresponding to a zk# server. e.g. "127.0.0.1:3000,127.0.0.1:3001,127.0.0.1:3002".# You can also append an optional chroot string to the urls to specify the# root directory for all kafka znodes.zookeeper.connect=master:2181,worker1:2181,worker2:2181#zookeeper的接口# Timeout in ms for connecting to zookeeperzookeeper.connection.timeout.ms=6000

worker的配置文件如下：

# Licensed to the Apache Software Foundation (ASF) under one or more# contributor license agreements.  See the NOTICE file distributed with# this work for additional information regarding copyright ownership.# The ASF licenses this file to You under the Apache License, Version 2.0# (the "License"); you may not use this file except in compliance with# the License.  You may obtain a copy of the License at##    http://www.apache.org/licenses/LICENSE-2.0## Unless required by applicable law or agreed to in writing, software# distributed under the License is distributed on an "AS IS" BASIS,# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.# See the License for the specific language governing permissions and# limitations under the License.# see kafka.server.KafkaConfig for additional details and defaults############################# Server Basics ############################## The id of the broker. This must be set to a unique integer for each broker.broker.id=1############################# Socket Server Settings #############################listeners=PLAINTEXT://:9092# The port the socket server listens onport=9092# Hostname the broker will bind to. If not set, the server will bind to all interfaceshost.name=worker1# Hostname the broker will advertise to producers and consumers. If not set, it uses the# value for "host.name" if configured.  Otherwise, it will use the value returned from# java.net.InetAddress.getCanonicalHostName().advertised.host.name=worker1# The port to publish to ZooKeeper for clients to use. If this is not set,# it will publish the same port that the broker binds to.#advertised.port=<port accessible by clients># The number of threads handling network requestsnum.network.threads=3# The number of threads doing disk I/Onum.io.threads=8# The send buffer (SO_SNDBUF) used by the socket serversocket.send.buffer.bytes=102400# The receive buffer (SO_RCVBUF) used by the socket serversocket.receive.buffer.bytes=102400# The maximum size of a request that the socket server will accept (protection against OOM)socket.request.max.bytes=104857600############################# Log Basics ############################## A comma seperated list of directories under which to store log fileslog.dirs=/usr/local/kafka/logs# The default number of log partitions per topic. More partitions allow greater# parallelism for consumption, but this will also result in more files across# the brokers.num.partitions=2# The number of threads per data directory to be used for log recovery at startup and flushing at shutdown.# This value is recommended to be increased for installations with data dirs located in RAID array.num.recovery.threads.per.data.dir=1############################# Log Flush Policy ############################## Messages are immediately written to the filesystem but by default we only fsync() to sync# the OS cache lazily. The following configurations control the flush of data to disk.# There are a few important trade-offs here:#    1. Durability: Unflushed data may be lost if you are not using replication.#    2. Latency: Very large flush intervals may lead to latency spikes when the flush does occur as there will be a lot of data to flush.#    3. Throughput: The flush is generally the most expensive operation, and a small flush interval may lead to exceessive seeks.# The settings below allow one to configure the flush policy to flush data after a period of time or# every N messages (or both). This can be done globally and overridden on a per-topic basis.# The number of messages to accept before forcing a flush of data to disk#log.flush.interval.messages=10000# The maximum amount of time a message can sit in a log before we force a flush#log.flush.interval.ms=1000############################# Log Retention Policy ############################## The following configurations control the disposal of log segments. The policy can# be set to delete segments after a period of time, or after a given size has accumulated.# A segment will be deleted whenever *either* of these criteria are met. Deletion always happens# from the end of the log.# The minimum age of a log file to be eligible for deletionlog.retention.hours=168# A size-based retention policy for logs. Segments are pruned from the log as long as the remaining# segments don't drop below log.retention.bytes.#log.retention.bytes=1073741824# The maximum size of a log segment file. When this size is reached a new log segment will be created.log.segment.bytes=1073741824# The interval at which log segments are checked to see if they can be deleted according# to the retention policieslog.retention.check.interval.ms=300000############################# Zookeeper ############################## Zookeeper connection string (see zookeeper docs for details).# This is a comma separated host:port pairs, each corresponding to a zk# server. e.g. "127.0.0.1:3000,127.0.0.1:3001,127.0.0.1:3002".# You can also append an optional chroot string to the urls to specify the# root directory for all kafka znodes.zookeeper.connect=master:2181,worker1:2181,worker2:2181# Timeout in ms for connecting to zookeeperzookeeper.connection.timeout.ms=6000

worker2配置文件如下：

# Licensed to the Apache Software Foundation (ASF) under one or more# contributor license agreements.  See the NOTICE file distributed with# this work for additional information regarding copyright ownership.# The ASF licenses this file to You under the Apache License, Version 2.0# (the "License"); you may not use this file except in compliance with# the License.  You may obtain a copy of the License at##    http://www.apache.org/licenses/LICENSE-2.0## Unless required by applicable law or agreed to in writing, software# distributed under the License is distributed on an "AS IS" BASIS,# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.# See the License for the specific language governing permissions and# limitations under the License.# see kafka.server.KafkaConfig for additional details and defaults############################# Server Basics ############################## The id of the broker. This must be set to a unique integer for each broker.broker.id=2############################# Socket Server Settings #############################listeners=PLAINTEXT://:9092# The port the socket server listens onport=9092# Hostname the broker will bind to. If not set, the server will bind to all interfaceshost.name=worker2# Hostname the broker will advertise to producers and consumers. If not set, it uses the# value for "host.name" if configured.  Otherwise, it will use the value returned from# java.net.InetAddress.getCanonicalHostName().advertised.host.name=worker2# The port to publish to ZooKeeper for clients to use. If this is not set,# it will publish the same port that the broker binds to.#advertised.port=<port accessible by clients># The number of threads handling network requestsnum.network.threads=3# The number of threads doing disk I/Onum.io.threads=8# The send buffer (SO_SNDBUF) used by the socket serversocket.send.buffer.bytes=102400# The receive buffer (SO_RCVBUF) used by the socket serversocket.receive.buffer.bytes=102400# The maximum size of a request that the socket server will accept (protection against OOM)socket.request.max.bytes=104857600############################# Log Basics ############################## A comma seperated list of directories under which to store log fileslog.dirs=/usr/local/kafka/logs# The default number of log partitions per topic. More partitions allow greater# parallelism for consumption, but this will also result in more files across# the brokers.num.partitions=2# The number of threads per data directory to be used for log recovery at startup and flushing at shutdown.# This value is recommended to be increased for installations with data dirs located in RAID array.num.recovery.threads.per.data.dir=1############################# Log Flush Policy ############################## Messages are immediately written to the filesystem but by default we only fsync() to sync# the OS cache lazily. The following configurations control the flush of data to disk.# There are a few important trade-offs here:#    1. Durability: Unflushed data may be lost if you are not using replication.#    2. Latency: Very large flush intervals may lead to latency spikes when the flush does occur as there will be a lot of data to flush.#    3. Throughput: The flush is generally the most expensive operation, and a small flush interval may lead to exceessive seeks.# The settings below allow one to configure the flush policy to flush data after a period of time or# every N messages (or both). This can be done globally and overridden on a per-topic basis.# The number of messages to accept before forcing a flush of data to disk#log.flush.interval.messages=10000# The maximum amount of time a message can sit in a log before we force a flush#log.flush.interval.ms=1000############################# Log Retention Policy ############################## The following configurations control the disposal of log segments. The policy can# be set to delete segments after a period of time, or after a given size has accumulated.# A segment will be deleted whenever *either* of these criteria are met. Deletion always happens# from the end of the log.# The minimum age of a log file to be eligible for deletionlog.retention.hours=168# A size-based retention policy for logs. Segments are pruned from the log as long as the remaining# segments don't drop below log.retention.bytes.#log.retention.bytes=1073741824# The maximum size of a log segment file. When this size is reached a new log segment will be created.log.segment.bytes=1073741824# The interval at which log segments are checked to see if they can be deleted according# to the retention policieslog.retention.check.interval.ms=300000############################# Zookeeper ############################## Zookeeper connection string (see zookeeper docs for details).# This is a comma separated host:port pairs, each corresponding to a zk# server. e.g. "127.0.0.1:3000,127.0.0.1:3001,127.0.0.1:3002".# You can also append an optional chroot string to the urls to specify the# root directory for all kafka znodes.zookeeper.connect=master:2181,worker1:2181,worker2:2181# Timeout in ms for connecting to zookeeperzookeeper.connection.timeout.ms=6000

4、实验集群（用官方quickstart：https://kafka.apache.org/documentation.html#quickstart）

step1:启动zookeeper集群

step2：在每个节点上启动kafka（./kafka-server-start.sh -deamon ../config/server.properties）

或者：

bin/kafka-server-start.sh config/server-1.properties &

step3：创建自己的topic，我的topic名字为：mytopic

命令： bin/kafka-topics.sh --create --zookeeper localhost:2181 --replication-factor 3 --partitions 1 --topic mytopic

step4:查看topic情况

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

step5：来看看通信情况

worker1运行（光标一直动）：

bin/kafka-console-consumer.sh --zookeeper localhost:2181 --from-beginning --topic mytopic

master运行：

bin/kafka-console-producer.sh --broker-list localhost:9092 --topic mytopic

此时，在怕producer端：master处上面输入一些字符

发现，consumer端同步了数据，那么说明kafka集群已经完事

5、zookeeper端查看运行信息

step1:启动zookeeper的客户端(./zkCli.sh -server 127.0.0.1:2181)

step2：查看zookeeper的下的信息

step3：查看broker的信息

现在再来看看其他说明：

logs目录：

server.log：运行日志

state-change.log：zookeeper的leader切换日志

controller.log ：控制机器的log

kafkaServer-gc.log ：kafka运行信息

 consumer.properties 

# Zookeeper connection string# comma separated host:port pairs, each corresponding to a zk# server. e.g. "127.0.0.1:3000,127.0.0.1:3001,127.0.0.1:3002"zookeeper.connect=127.0.0.1:2181#无效配置，系统采用的是sever.properties的配置# timeout in ms for connecting to zookeeperzookeeper.connection.timeout.ms=6000#连接时间#consumer group idgroup.id=test-consumer-group#groud id 对应一个consumer组#consumer timeout#consumer.timeout.ms=5000

 producer.properties 

# list of brokers used for bootstrapping knowledge about the rest of the cluster# format: host1:port1,host2:port2 ...metadata.broker.list=localhost:9092 #无效配置，系统采用的是sever.properties的配置# name of the partitioner class for partitioning events; default partition spreads data randomly#partitioner.class=# specifies whether the messages are sent asynchronously (async) or synchronously (sync)producer.type=sync  #采用同步发送形式# specify the compression codec for all data generated: none, gzip, snappy, lz4.# the old config values work as well: 0, 1, 2, 3 for none, gzip, snappy, lz4, respectivelycompression.codec=none #是否使用压缩# message encoderserializer.class=kafka.serializer.DefaultEncoder#有字节序列化等方式# allow topic level compression#compressed.topics=############################# Async Producer ############################## maximum time, in milliseconds, for buffering data on the producer queue #queue.buffering.max.ms=# the maximum size of the blocking queue for buffering on the producer #queue.buffering.max.messages=# Timeout for event enqueue:# 0: events will be enqueued immediately or dropped if the queue is full# -ve: enqueue will block indefinitely if the queue is full# +ve: enqueue will block up to this many milliseconds if the queue is full#queue.enqueue.timeout.ms=# the number of messages batched at the producer #batch.num.messages=

更多信息解释访问：https://kafka.apache.org/documentation.html#configuration

-----------------------------------------------end-----------------------------