安装 zookeeper http://www.cnblogs.com/xiaojf/p/6572351.html
安装 scala http://www.cnblogs.com/xiaojf/p/6568432.html
[root@m1 jar]# tar zxvf kafka_2.11-0.10.2.0.tgz -C ../ [root@m1 jar]# cd .. [root@m1 soft]# ll total 24 drwxr-xr-x. 2 root root 4096 Mar 17 18:18 jar drwxr-xr-x. 8 uucp 143 4096 Dec 12 16:50 jdk drwxr-xr-x. 6 root root 4096 Feb 14 09:29 kafka_2.11-0.10.2.0 drwxrwxr-x. 6 1001 1001 4096 Mar 4 2016 scala-2.11.8 drwxr-xr-x. 3 root root 4096 Mar 17 18:30 tmp drwxr-xr-x. 10 1001 1001 4096 Aug 23 2016 zookeeper-3.4.9
[root@m1 soft]# mv kafka_2.11-0.10.2.0 kafka [root@m1 soft]# cd kafka/config/ [root@m1 config]# ll total 60 -rw-r--r--. 1 root root 906 Feb 14 09:26 connect-console-sink.properties -rw-r--r--. 1 root root 909 Feb 14 09:26 connect-console-source.properties -rw-r--r--. 1 root root 2760 Feb 14 09:26 connect-distributed.properties -rw-r--r--. 1 root root 883 Feb 14 09:26 connect-file-sink.properties -rw-r--r--. 1 root root 881 Feb 14 09:26 connect-file-source.properties -rw-r--r--. 1 root root 1074 Feb 14 09:26 connect-log4j.properties -rw-r--r--. 1 root root 2061 Feb 14 09:26 connect-standalone.properties -rw-r--r--. 1 root root 1199 Feb 14 09:26 consumer.properties -rw-r--r--. 1 root root 4369 Feb 14 09:26 log4j.properties -rw-r--r--. 1 root root 1900 Feb 14 09:26 producer.properties -rw-r--r--. 1 root root 5631 Feb 14 09:26 server.properties -rw-r--r--. 1 root root 1032 Feb 14 09:26 tools-log4j.properties -rw-r--r--. 1 root root 1023 Feb 14 09:26 zookeeper.properties [root@m1 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
# 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://your.host.name: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(). 此处要修改为当前节点的真实ip地址,否则外部java无法访问9092端口
advertised.listeners=PLAINTEXT://192.168.59.130:9092
# 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=/usr/local/soft/tmp/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=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=m1:2181,s1:2181,s2:2181
# Timeout in ms for connecting to zookeeper
zookeeper.connection.timeout.ms=6000
创建日志文件夹 /usr/local/soft/tmp/kafka/logs
[root@m1 config]# mkdir -p /usr/local/soft/tmp/kafka/logs
分发代码到其他服务器，并修改broker.id
s1 broker.id = 1
s2 broker.id = 2
设置环境变量
[root@s2 config]# vi /etc/profile
export KAFKA_HOME=/usr/local/soft/kafka/
export PATH=$PATH:$KAFKA_HOME/bin
source /etc/profile
启动kafka server, 确认各个服务已经创建 /usr/local/soft/tmp/kafka/logs 目录
[root@s2 config]# kafka-server-start.sh /usr/local/soft/kafka/config/server.properties &
关闭kafka
[root@s2 config]# kafka-server-stop.sh
如果上面命令无效，直接kiil -9 kafka的进程号
创建topic
[root@s2 config]# kafka-topics.sh --create --zookeeper localhost:2181 --replication-factor 1 --partitions 1 --topic test Created topic "test".
创建消息生产者
[root@s2 config]# kafka-console-producer.sh --broker-list localhost:9092 --topic test xiaojf
创建消息消费者
[root@s1 ~]# kafka-console-consumer.sh --bootstrap-server localhost:9092 --topic test --from-beginning
[2017-03-21 07:15:32,611] INFO [Group Metadata Manager on Broker 1]: Loading offsets and group metadata from __consumer_offsets-42 (kafka.coordinator.GroupMetadataManager)
[2017-03-21 07:15:32,649] INFO [Group Metadata Manager on Broker 1]: Finished loading offsets from __consumer_offsets-42 in 38 milliseconds. (kafka.coordinator.GroupMetadataManager)
[2017-03-21 07:15:32,649] INFO [Group Metadata Manager on Broker 1]: Loading offsets and group metadata from __consumer_offsets-4 (kafka.coordinator.GroupMetadataManager)
[2017-03-21 07:15:32,681] INFO [Group Metadata Manager on Broker 1]: Finished loading offsets from __consumer_offsets-4 in 32 milliseconds. (kafka.coordinator.GroupMetadataManager)
[2017-03-21 07:15:32,681] INFO [Group Metadata Manager on Broker 1]: Loading offsets and group metadata from __consumer_offsets-48 (kafka.coordinator.GroupMetadataManager)
[2017-03-21 07:15:32,718] INFO [Group Metadata Manager on Broker 1]: Finished loading offsets from __consumer_offsets-48 in 37 milliseconds. (kafka.coordinator.GroupMetadataManager)
[2017-03-21 07:15:32,718] INFO [Group Metadata Manager on Broker 1]: Loading offsets and group metadata from __consumer_offsets-10 (kafka.coordinator.GroupMetadataManager)
[2017-03-21 07:15:32,757] INFO [Group Metadata Manager on Broker 1]: Finished loading offsets from __consumer_offsets-10 in 39 milliseconds. (kafka.coordinator.GroupMetadataManager)
[2017-03-21 07:15:32,757] INFO [Group Metadata Manager on Broker 1]: Loading offsets and group metadata from __consumer_offsets-16 (kafka.coordinator.GroupMetadataManager)
[2017-03-21 07:15:32,805] INFO [Group Metadata Manager on Broker 1]: Finished loading offsets from __consumer_offsets-16 in 48 milliseconds. (kafka.coordinator.GroupMetadataManager)
xiaojf
至此，安装全部完成，接着测试多个broker 代理的例子
创建topic，replicat 数量根据当前集群kafka节点数据量相关
[root@s2 config]# kafka-topics.sh --create --zookeeper localhost:2181 --replication-factor 3 --partitions 1 --topic my-replicated-topic Error while executing topic command : replication factor: 3 larger than available brokers: 2 [2017-03-21 07:18:02,515] ERROR org.apache.kafka.common.errors.InvalidReplicationFactorException: replication factor: 3 larger than available brokers: 2 (kafka.admin.TopicCommand$) [root@s2 config]# kafka-topics.sh --create --zookeeper localhost:2181 --replication-factor 2 --partitions 2 --topic my-replicated-topic Created topic "my-replicated-topic".
查看topic状态
[root@s2 config]# kafka-topics.sh --describe --zookeeper localhost:2181 --topic my-replicated-topic Topic:my-replicated-topic PartitionCount:2 ReplicationFactor:2 Configs: Topic: my-replicated-topic Partition: 0 Leader: 2 Replicas: 2,1 Isr: 2,1 Topic: my-replicated-topic Partition: 1 Leader: 1 Replicas: 1,2 Isr: 1,2
partitions 为2 ，所以有两行的分区信息
Replicas 是指当前分区分别在哪个kafka节点上， 数字标识broker.id
Leader 分区的leader节点
Isr 存活的kafka replicat节点，并且如果当前leader挂掉后， 依次选举为心的leader节点
创建消息生产者
[root@s2 config]# kafka-console-producer.sh --broker-list localhost:9092 --topic my-replicated-topic xiaojf muli^Hti topic
创建消息消费者
[root@s2 ~]# kafka-console-consumer.sh --bootstrap-server localhost:9092 --from-beginning --topic my-replicated-topic xiaojf multi topic
结束
