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CentOS7.0安装配置Kafka集群

[日期:2017-06-19] 来源:Linux社区  作者:jssg_tzw [字体: ]

1.简介

Kafka是一种高吞吐的分布式发布订阅消息系统,能够替代传统的消息队列用于解耦合数据处理,缓存未处理消息等,同时具有更高的吞吐率,支持分区、多副本、冗余,因此被广泛用于大规模消息数据处理应用。Kafka支持Java及多种其它语言客户端,可与Hadoop、Storm、Spark等其它大数据工具结合使用。

本教程主要介绍Kafka在CentOS7上的安装和使用,包括功能验证和集群的简单配置。

2.环境准备

#hostnameipsoftwarenotes
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_HOME

6.3.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: follower

7.2.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:

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CentOS 7下安装Logstash ELK Stack 日志管理系统  http://www.linuxidc.com/Linux/2016-08/134165.htm

Kafka集群部署与配置手册 http://www.linuxidc.com/Linux/2017-02/141037.htm

CentOS 7下Kafka集群安装  http://www.linuxidc.com/Linux/2017-01/139734.htm

Apache Kafka 教程笔记 http://www.linuxidc.com/Linux/2014-01/94682.htm

CentOS 7下安装Kafka单机版  http://www.linuxidc.com/Linux/2017-01/139732.htm

Apache kafka原理与特性(0.8V)  http://www.linuxidc.com/Linux/2014-09/107388.htm

Kafka部署与代码实例  http://www.linuxidc.com/Linux/2014-09/107387.htm

Kafka介绍及环境搭建  http://www.linuxidc.com/Linux/2016-12/138724.htm

Kafka介绍和集群环境搭建  http://www.linuxidc.com/Linux/2014-09/107382.htm

Kafka 的详细介绍请点这里
Kafka 的下载地址请点这里

本文永久更新链接地址http://www.linuxidc.com/Linux/2017-06/144951.htm

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