1.简介
2.环境准备
| # | hostname | ip | software | notes |
|---|---|---|---|---|
| 1 | apollo.dt.com | 192.168.56.181 | kafka zookeeper |
Kafka: broker.id=181 |
| 2 | artemis.dt.com | 192.168.56.182 | kafka zookeeper |
kafka: borker.id=182 |
| 3 | uranus.dt.com | 192.168.56.183 | kafka zookeeper |
kafka: broker.id=183 |
3.安装JDK
Kafka使用Zookeeper来保存相关配置信息，Kafka及Zookeeper依赖Java环境，有关CentOS7.0安装JDK请参考：CentOS7 安装JDK1.8
4.安装配置zookeeper集群
有关Zookeeper的集群请参考：CentOS7安装配置Zookeeper集群
5.下载Kafka
4.1.下载Kafka
[dtadmin@apollo~]$ sudo wget http://mirrors.tuna.tsinghua.edu.cn/apache/kafka/0.10.2.1/kafka_2.11-0.10.2.1.tgz 6.Kafka集群安装与配置
6.1.安装Kafka
#解压Kafka
[root@apollo dtadmin]# sudo tar -zxvf kafka_2.11-0.10.2.1.tgz
#移到目录/opt下
[root@apollo dtadmin]# sudo mv kafka_2.11-0.10.2.1 /opt/kafka
6.2.配置kafka环境变量
[root@apollo dtadmin]# vim /etc/profile
#添加如下内容：
KAFKA_HOME=/opt/kafka
PATH=$PATH:$KAFKA_HOME/bin
export PATH KAFKA_HOME6.3.配置Kafka
#创建日志存放目录
[root@apollo dtadmin]# cd /opt/kafka
[root@apollo kafka]# mkdir -p log/kafka
#修改配置文件/opt/kafka/config/server.properties
[root@apollo dtadmin]# vim /opt/kafka/config/server.properties
#修改内容如下：
broker.id=181
delete.topic.enable=true
listeners = PLAINTEXT://apollo.dt.com:9092
log.dirs=/opt/kafka/log/kafka
zookeeper.connect=192.168.56.181:2181,192.168.56.182:2181,192.168.56.183:2181样例配置文件：
[root@apollo dtadmin]# vim /opt/kafka/config/server.properties
#######
# 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=181
port=9092
# Switch to enable topic deletion or not, default value is false
delete.topic.enable=true
############################# Socket Server Settings #############################
# The address the socket server listens on. It will get the value returned from
# java.net.InetAddress.getCanonicalHostName() if not configured.
# FORMAT:
# listeners = listener_name://host_name:port
# EXAMPLE:
listeners = PLAINTEXT://apollo.dt.com:9092
#listeners=PLAINTEXT://:9092
# Hostname and port the broker will advertise to producers and consumers. If not set,
# it uses the value for "listeners" if configured. Otherwise, it will use the value
# returned from java.net.InetAddress.getCanonicalHostName().
#advertised.listeners=PLAINTEXT://your.host.name:9092
# Maps listener names to security protocols, the default is for them to be the same. See the config documentation for more details
#listener.security.protocol.map=PLAINTEXT:PLAINTEXT,SSL:SSL,SASL_PLAINTEXT:SASL_PLAINTEXT,SASL_SSL:SASL_SSL
# The number of threads handling network requests
num.network.threads=3
# The number of threads doing disk I/O
num.io.threads=8
# The send buffer (SO_SNDBUF) used by the socket server
socket.send.buffer.bytes=102400
# The receive buffer (SO_RCVBUF) used by the socket server
socket.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 files
log.dirs=/opt/kafka/log/kafka
# 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=1
# 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 deletion due to age
log.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. Functions independently of log.retention.hours.
#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 policies
log.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=192.168.56.181:2181,192.168.56.182:2181,192.168.56.183:2181
# Timeout in ms for connecting to zookeeper
zookeeper.connection.timeout.ms=6000注：以同样方法配置其它两台服务器。
7.启动zookeeper集群
7.1.在每台机器上启动zookeeper,每台机器都要启动
[root@apollo dtadmin]# zkServer.sh start
ZooKeeper JMX enabled by default
Using config: /opt/zookeeper/bin/../conf/zoo.cfg
Starting zookeeper ... STARTED
[root@apollo dtadmin]# zkServer.sh status
ZooKeeper JMX enabled by default
Using config: /opt/zookeeper/bin/../conf/zoo.cfg
Mode: leader
[root@artemis dtadmin]# zkServer.sh start
ZooKeeper JMX enabled by default
Using config: /opt/zookeeper/bin/../conf/zoo.cfg
Starting zookeeper ... STARTED
[root@artemis dtadmin]# zkServer.sh status
ZooKeeper JMX enabled by default
Using config: /opt/zookeeper/bin/../conf/zoo.cfg
Mode: follower
[root@uranus dtadmin]# zkServer.sh start
ZooKeeper JMX enabled by default
Using config: /opt/zookeeper/bin/../conf/zoo.cfg
Starting zookeeper ... STARTED
[root@uranus dtadmin]# zkServer.sh status
ZooKeeper JMX enabled by default
Using config: /opt/zookeeper/bin/../conf/zoo.cfg
Mode: follower7.2.启动kafka集群
[root@apollo dtadmin]# kafka-server-start.sh /opt/kafka/config/server.properties
[root@artemis dtadmin]# kafka-server-start.sh /opt/kafka/config/server.properties
[root@uranus dtadmin]# kafka-server-start.sh /opt/kafka/config/server.properties下面关于Kafka的文章您也可能喜欢，不妨参考下：