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891天前1. 在根目录创建kafka文件夹（service1、service2、service3都创建） |
[root@localhost /]# mkdir kafka |
2.通过Xshell上传文件到service1服务器：上传kafka_2.9.2-0.8.1.1.tgz到/software文件夹 |
3.远程copy将service1下的/software/kafka_2.9.2-0.8.1.1.tgz到service2、service3 |
[root@localhost software]# scp -r /software/kafka_2.9.2-0.8.1.1.tgz root@192.168.2.212:/software/ |
[root@localhost software]# scp -r /software/kafka_2.9.2-0.8.1.1.tgz root@192.168.2.213:/software/ |
3.copy /software/kafka_2.9.2-0.8.1.1.tgz到/kafka/目录（service1、service2、service3都执行） |
[root@localhost software]# cp /software/kafka_2.9.2-0.8.1.1.tgz /kafka/ |
4.安装解压kafka_2.9.2-0.8.1.1.tgz（service1、service2、service3都执行） |
[root@localhost /]# cd /kafka/ |
[root@localhost kafka]# tar -zxvf kafka_2.9.2-0.8.1.1.tgz |
5.创建kafka消息目录（service1,service2,service3都要创建） |
[root@localhost kafka]# mkdir kafkaLogs |
6. 修改kafka的配置文件（service1,service2,service3都要配置） |
[root@localhost /]# cd /kafka/kafka_2.9.2-0.8.1.1/ |
[root@localhost kafka_2.9.2-0.8.1.1]# cd config/ |
[root@localhost config]# ls |
consumer.properties log4j.properties producer.properties server.properties test-log4j.properties tools-log4j.properties zookeeper.properties |
[root@localhost config]# vi 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=0 ---唯一标识 |
############################# Socket Server Settings ############################# |
# The port the socket server listens on |
port=19092 --当前broker对外提供的TCP端口,默认9092 |
# Hostname the broker will bind to. If not set, the server will bind to all interfaces |
host.name=192.168.2.213 --一般是关闭状态，我们要将它打开，如果dns解析失败，会出现文件句柄泄露，不要小看dns解析失败率，如果dns解析失败率为万分之一，由于kafka的性能非常高，每个topic的每个分区，每秒可以处理十万多条的数据，即使万分之一的失败率，每秒也要泄露10个文件句柄，很快句柄数就会泄露完毕，就会超过linux打开文件的数，就会出现异常，所以我们配置ip，就不会进行dns解析 |
# 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= |
# 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= |
# The number of threads handling network requests |
num.network.threads=2 --broker网络处理的线程数，一般不做处理 |
# The number of threads doing disk I/O |
num.io.threads=8 --broker io处理的线程数，这个数量一定要比log.dirs的目录数要大 |
# The send buffer (SO_SNDBUF) used by the socket server |
socket.send.buffer.bytes=1048576 --将发送的消息先放到缓冲区，当到达一定量的时候再一次性发出 |
# The receive buffer (SO_RCVBUF) used by the socket server |
socket.receive.buffer.bytes=1048576 --kafka接受消息的缓冲区，当接受的数量达到一定量的时候再写入磁盘 |
# The maximum size of a request that the socket server will accept (protection against OOM) |
socket.request.max.bytes=104857600 --像kafka发送或者请求消息的最大数，此设置不能超过java堆栈大小 |
############################# Log Basics ############################# |
# A comma seperated list of directories under which to store log files |
log.dirs=/kafka/kafkaLogs --多个目录可以用，隔开 |
# 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 --一个topic默认分区数 |
############################# 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 |
log.retention.hours=168 |
message.max.byte=5048576 --kafka每条消息容纳的最大大小 |
default.replication.factor=2 --默认的复制因子，默认消息只有一个副本，不太安全，所以设置为2，如果某个分区的消息失败了，我们可以使用另一个分区的消息服务 |
replica.fetch.max.byte=5048576 --kafka每条消息容纳的最大大小 |
# 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=536870912 --消息持久化的最大大小 |
# 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=60000 |
# By default the log cleaner is disabled and the log retention policy will default to just delete segments after their retention expires. |
# If log.cleaner.enable=true is set the cleaner will be enabled and individual logs can then be marked for log compaction. |
log.cleaner.enable=false --不使用log压缩 |
############################# 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=192.168.2.211:2181,192.168.2.212:2181,192.168.2.213:2181 --zk地址 |
# Timeout in ms for connecting to zookeeper |
zookeeper.connection.timeout.ms=1000000 |
7.启动kafka服务 |
[root@localhost bin]# ./kafka-server-start.sh -daemon ../config/server.properties |
[root@localhost bin]# jps |
27413 Kafka |
27450 Jps |
17884 QuorumPeerMain |
8.验证kafka集群 |
[root@localhost bin]# ./kafka-topics.sh --create --zookeeper localhost:2181 --replication-factor 2 --partitions 1 --topic test |
Created topic "test". |
9.在service1上开启producer程序 |
./kafka-console-producer.sh --broker-list 192.168.2.211:9092 --topic test |
[root@localhost bin]# ./kafka-console-producer.sh --broker-list 192.168.2.211:9092 --topic test |
SLF4J: Failed to load class "org.slf4j.impl.StaticLoggerBinder". |
SLF4J: Defaulting to no-operation (NOP) logger implementation |
SLF4J: Seehttp://www.slf4j.org/codes.html#StaticLoggerBinderfor further details. |
10. 在service2上开启consumer程序 |
[root@localhost bin]# ./kafka-console-consumer.sh --zookeeper localhost:2181 --topic test --from-beginning |
SLF4J: Failed to load class "org.slf4j.impl.StaticLoggerBinder". |
SLF4J: Defaulting to no-operation (NOP) logger implementation |
SLF4J: Seehttp://www.slf4j.org/codes.html#StaticLoggerBinderfor further details. |
11.在producer中发送消息：hello jeesz |
[root@localhost bin]# ./kafka-console-consumer.sh --zookeeper localhost:2181 --topic test --from-beginning |
SLF4J: Failed to load class "org.slf4j.impl.StaticLoggerBinder". |
SLF4J: Defaulting to no-operation (NOP) logger implementation |
SLF4J: Seehttp://www.slf4j.org/codes.html#StaticLoggerBinderfor further details. |
hello jeesz |
12. 在consumer中接受到消息 |
[root@localhost bin]# ./kafka-console-consumer.sh --zookeeper localhost:2181 --topic test --from-beginning |
SLF4J: Failed to load class "org.slf4j.impl.StaticLoggerBinder". |
SLF4J: Defaulting to no-operation (NOP) logger implementation |
SLF4J: Seehttp://www.slf4j.org/codes.html#StaticLoggerBinderfor further details. |
hello jeesz |
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