kafka生產(chǎn)實例安裝
2019/3/14 星期四
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Linux 初始化腳本 （centos6 centos7 通用）Linux 初始化腳本 （centos6 centos7 通用）
zookeeper生產(chǎn)環(huán)境搭建 zookeeper生產(chǎn)環(huán)境搭建
在安裝前請務(wù)必安裝好zookeeper 查看上面2個鏈接地址！
kafka優(yōu)化：
有時候系統(tǒng)需要應(yīng)對突如其來的高峰數(shù)據(jù)，它可能會拖慢磁盤。（比如說，每個小時開始時進行的批量操作等）
這個時候需要容許更多的臟數(shù)據(jù)存到內(nèi)存，讓后臺進程慢慢地通過異步方式將數(shù)據(jù)寫到磁盤當(dāng)中。
vm.dirty_background_ratio = 5
vm.dirty_ratio = 80
這個時候，后臺進行在臟數(shù)據(jù)達到5%時就開始異步清理，但在80%之前系統(tǒng)不會強制同步寫磁盤。這樣可以使IO變得更加平滑。
實際操作：
echo "vm.dirty_background_ratio=5" >> /etc/sysctl.conf
echo "vm.dirty_ratio=80" >> /etc/sysctl.conf
sysctl -p
kafka 生產(chǎn)環(huán)境搭建
[root@emm-kafka01-10--174 ~]# cd /opt/ins/
[root@emm-kafka01-10--174 ins]# ll
total 233044
-rwxr-xr-x 1 root root 166044032 Mar 13 15:58 jdk-8u102-linux-x64.rpm
-rw-r--r-- 1 root root 50326212 Mar 13 16:14 kafka_2.12-1.1.0.tgz
-rw-r--r-- 1 root root 22261552 Mar 13 16:14 zookeeper-3.4.8.tar.gz
[root@emm-kafka01-10--174 ins]# tar -zxvf kafka_2.12-1.1.0.tgz -C /usr/local/
[root@emm-kafka01-10--174 ins]# cd /usr/local/
[root@emm-kafka01-10--174 local]# ln -s kafka_2.12-1.1.0/ kafka
[root@emm-kafka01-10--174 local]# ll
total 4
drwxr-xr-x. 2 root root 6 Apr 11 2018 bin
drwxr-xr-x. 2 root root 6 Apr 11 2018 etc
drwxr-xr-x. 2 root root 6 Apr 11 2018 games
drwxr-xr-x. 2 root root 6 Apr 11 2018 include
lrwxrwxrwx 1 root root 17 Mar 14 09:51 kafka -> kafka_2.12-1.1.0/
drwxr-xr-x 6 root root 83 Mar 24 2018 kafka_2.12-1.1.0
drwxr-xr-x. 2 root root 6 Apr 11 2018 lib
drwxr-xr-x. 2 root root 6 Apr 11 2018 lib64
drwxr-xr-x. 2 root root 6 Apr 11 2018 libexec
drwxr-xr-x. 2 root root 6 Apr 11 2018 sbin
drwxr-xr-x. 5 root root 46 Apr 11 2018 share
drwxr-xr-x. 2 root root 6 Nov 12 13:03 src
lrwxrwxrwx 1 root root 15 Mar 13 18:20 zookeeper -> zookeeper-3.4.8
drwxr-xr-x 11 root root 4096 Mar 13 18:22 zookeeper-3.4.8修改配置文件
我們不會對 zookeeper.properties producer.properties consumer.properties 做什么特殊的配置
我們只對server.properties 做修改配置
[root@emm-kafka01-10--174 config]# pwd
/usr/local/kafka/config
[root@emm-kafka01-10--174 config]# ll
total 64
-rw-r--r-- 1 root root 906 Mar 24 2018 connect-console-sink.properties
-rw-r--r-- 1 root root 909 Mar 24 2018 connect-console-source.properties
-rw-r--r-- 1 root root 5807 Mar 24 2018 connect-distributed.properties
-rw-r--r-- 1 root root 883 Mar 24 2018 connect-file-sink.properties
-rw-r--r-- 1 root root 881 Mar 24 2018 connect-file-source.properties
-rw-r--r-- 1 root root 1111 Mar 24 2018 connect-log4j.properties
-rw-r--r-- 1 root root 2730 Mar 24 2018 connect-standalone.properties
-rw-r--r-- 1 root root 1221 Mar 24 2018 consumer.properties
-rw-r--r-- 1 root root 4727 Mar 24 2018 log4j.properties
-rw-r--r-- 1 root root 1919 Mar 24 2018 producer.properties
-rw-r--r-- 1 root root 6851 Mar 24 2018 server.properties
-rw-r--r-- 1 root root 1032 Mar 24 2018 tools-log4j.properties
-rw-r--r-- 1 root root 1023 Mar 24 2018 zookeeper.properties
[root@emm-kafka01-10--174 config]# ls -l server.properties
-rw-r--r-- 1 root root 6851 Mar 24 2018 server.properties
[root@emm-kafka01-10--174 config]# vim server.properties
...
...
...如下
config下的 server.properties
broker.id=10 --這個id如果部署的是kafka集群，id是不能一樣的
port=9092 --默認(rèn)kafka端口，如果一臺機器上面部署了多個kafka實例，需要兩個實例端口不一樣
log.dirs=/var/log/kafka/kafka-logs 這個需要修改，這個是存topic相關(guān)信息
zookeeper.connect=10.2.10.174:2181,10.2.10.175:2181,10.2.10.176:2181/kafkagroup
[root@emm-kafka01-10--174 config]# grep '^[a-Z]' server.properties
broker.id=174 //每個實例都不一樣
num.network.threads=3
num.io.threads=8
socket.send.buffer.bytes=102400
socket.receive.buffer.bytes=102400
socket.request.max.bytes=104857600
log.dirs=/var/log/kafka/kafka-logs
num.partitions=1 //默認(rèn)的每個topic的分區(qū) 為1
num.recovery.threads.per.data.dir=1
offsets.topic.replication.factor=1
transaction.state.log.replication.factor=1
transaction.state.log.min.isr=1
log.retention.hours=168
log.segment.bytes=1073741824
log.retention.check.interval.ms=300000
zookeeper.connect=10.2.10.174:2181,10.2.10.175:2181,10.2.10.176:2181/kafkagroup
zookeeper.connection.timeout.ms=6000
group.initial.rebalance.delay.ms=0注意：
kafka實現(xiàn)功能需要zookeeper調(diào)度，所以這是與zk單機或者集群的連接，上面是與集群連接的方式，也可以去掉/kafkagroup,但是zk的znode結(jié)構(gòu)就會比較混亂，所以建議加一個路徑
這樣在zk的znode下就會出現(xiàn) kafkagroup
其他2臺 的server.properties 配置文件 中的 broker.id=改成 175 176
其他的不變
[root@emm-kafka01-10--174 config]# scp server.properties root@10.2.10.175:/usr/local/kafka/config/
server.properties 100% 6911 2.5MB/s 00:00
[root@emm-kafka01-10--174 config]# scp server.properties root@10.2.10.176:/usr/local/kafka/config/
server.properties 100% 6911 2.8MB/s 00:0
修改kafka啟動腳本（調(diào)節(jié)啟動內(nèi)存占用大小
[root@emm-kafka01-10--174 bin]# vim /usr/local/kafka/bin/kafka-server-start.sh
if [ "x$KAFKA_HEAP_OPTS" = "x" ]; then
export KAFKA_HEAP_OPTS="-Xmx1G -Xms1G"
fi
改成
我們的內(nèi)存是8G 這里我們這樣改
export KAFKA_HEAP_OPTS="-Xmx4G -Xms1G"
最大4G 初始 1G
內(nèi)存為4G 就改成
export KAFKA_HEAP_OPTS="-Xmx2G -Xms1G"
[root@emm-kafka01-10--174 bin]# scp kafka-server-start.sh root@10.2.10.175:/usr/local/kafka/bin/
kafka-server-start.sh 100% 1376 1.5MB/s 00:00
[root@emm-kafka01-10--174 bin]# scp kafka-server-start.sh root@10.2.10.176:/usr/local/kafka/bin/
kafka-server-start.sh 100% 1376 1.2MB/s 00:00 4、啟動kafka //后臺啟動 再啟動之前，我們先設(shè)置環(huán)境變量
[root@emm-kafka01-10--174 bin]# vim /etc/profile
export PATH=/usr/local/kafka/bin:/usr/local/zookeeper/bin:$PATH
[root@emm-kafka01-10--174 bin]# source /etc/profile
[root@emm-kafka01-10--174 bin]# which kafka-server-start.sh
/usr/local/kafka/bin/kafka-server-start.sh
[root@emm-kafka01-10--174 bin]# which zkServer.sh
/usr/local/zookeeper/bin/zkServer.sh其他2臺同上
后臺啟動kafka
[root@emm-kafka01-10--174 bin]# cd ~
[root@emm-kafka01-10--174 ~]# nohup kafka-server-start.sh /usr/local/kafka/config/server.properties 1>/dev/null 2>&1 &
[1] 26314
[root@emm-kafka01-10--174 ~]# jps
14290 QuorumPeerMain
26643 Jps
26314 Kafka
[root@emm-kafka01-10--174 ~]# ps -ef|grep kafka
root 26314 24915 35 10:12 pts/0 00:00:11 java -Xmx2G -Xms1G -server[root@emm-kafka01-10--174 ~]# sh zkCli.sh
[zk: localhost:2181(CONNECTED) 0] ls /
[kafkagroup, zookeeper]
[zk: localhost:2181(CONNECTED) 1] ls /kafkagroup
[cluster, controller, controller_epoch, brokers, admin, isr_change_notification, consumers, log_dir_event_notification, latest_producer_id_block, config]以上安裝成功
我們接下來就是測試kafka
[root@emm-kafka01-10--174 ~]# kafka-topics.sh --zookeeper 10.2.10.174/kafkagroup --create --topic majihui --partitions 2 --replication-factor 2
Created topic "majihui".
[root@emm-kafka01-10--174 ~]# kafka-topics.sh --zookeeper 10.2.10.174/kafkagroup --describe --topic majihui
Topic:majihui PartitionCount:2 ReplicationFactor:2 Configs:
Topic: majihui Partition: 0 Leader: 174 Replicas: 174,175 Isr: 174,175
Topic: majihui Partition: 1 Leader: 175 Replicas: 175,176 Isr: 175,176
[root@emm-kafka02-10--175 ~]# kafka-topics.sh --zookeeper 10.2.10.174 --list
[root@emm-kafka02-10--175 ~]# kafka-topics.sh --zookeeper 10.2.10.174/kafkagroup --list
__consumer_offsets
majihui啟動生產(chǎn)者
[root@emm-kafka02-10--175 ~]# kafka-console-producer.sh --zookeeper 10.2.10.174:2181 --topic majihui
zookeeper is not a recognized option
這個命令不對，命令改了
[root@emm-kafka02-10--175 ~]# kafka-console-producer.sh --broker-list 10.2.10.174:9092 --topic majihui
>hello
啟動消費者
[root@emm-kafka01-10--174 ~]# kafka-console-consumer.sh --bootstrap-server 10.2.10.174:9092 --topic majihui
hello刪除topic majihui
[root@emm-kafka02-10--175 ~]# kafka-topics.sh --zookeeper 10.2.10.174/kafkagroup --delete --topic majihui
Topic majihui is marked for deletion.
Note: This will have no impact if delete.topic.enable is not set to true.
[root@emm-kafka02-10--175 ~]# kafka-topics.sh --zookeeper 10.2.10.174/kafkagroup --list
__consumer_offsets[root@emm-kafka01-10--174 ~]# kafka-topics.sh --zookeeper 10.2.10.174/kafkagroup --delete --topic __consumer_offsets
Error while executing topic command : Topic __consumer_offsets is a kafka internal topic and is not allowed to be marked for deletion.
//執(zhí)行主題命令時出錯：主題__consumer_offsets是kafka內(nèi)部主題，不允許標(biāo)記為刪除。
[2019-03-14 11:24:17,407] ERROR kafka.admin.AdminOperationException: Topic __consumer_offsets is a kafka internal topic and is not allowed to be marked for deletion.
at kafka.admin.TopicCommand$.$anonfun$deleteTopic$1(TopicCommand.scala:188)
at kafka.admin.TopicCommand$.$anonfun$deleteTopic$1$adapted(TopicCommand.scala:185)
at scala.collection.mutable.ResizableArray.foreach(ResizableArray.scala:59)
at scala.collection.mutable.ResizableArray.foreach$(ResizableArray.scala:52)
at scala.collection.mutable.ArrayBuffer.foreach(ArrayBuffer.scala:48)
at kafka.admin.TopicCommand$.deleteTopic(TopicCommand.scala:185)
at kafka.admin.TopicCommand$.main(TopicCommand.scala:71)
at kafka.admin.TopicCommand.main(TopicCommand.scala)
(kafka.admin.TopicCommand$)
[root@emm-kafka01-10--174 ~]# kafka-topics.sh --zookeeper 10.2.10.174/kafkagroup --list
__consumer_offsets由于版本的升級，以前的命令不可以用了
這里注意一下。
kafka優(yōu)化：
[root@emm-kafka01-10--174 ~]# echo "vm.swappiness=1" >> /etc/sysctl.conf
[root@emm-kafka01-10--174 ~]# echo "vm.dirty_background_ratio=5" >> /etc/sysctl.conf
[root@emm-kafka01-10--174 ~]# echo "vm.dirty_ratio=80" >> /etc/sysctl.conf
[root@emm-kafka01-10--174 ~]# sysctl -p
vm.swappiness = 1
vm.dirty_background_ratio = 5
vm.dirty_ratio = 80
[root@emm-kafka01-10--174 ~]# sysctl -p
vm.swappiness = 1
vm.dirty_background_ratio = 5
vm.dirty_ratio = 80
[root@emm-kafka01-10--174 ~]# scp /etc/sysctl.conf root@10.2.10.175:/etc/sysctl.conf
sysctl.conf 100% 511 529.6KB/s 00:00
[root@emm-kafka01-10--174 ~]# scp /etc/sysctl.conf root@10.2.10.176:/etc/sysctl.conf
sysctl.conf 100% 511 497.6KB/s 00:00 kafka啟動腳本
[root@emm-kafka01-10--174 scripts]# pwd
/opt/scripts
[root@emm-kafka01-10--174 scripts]# ll
total 16
-rwxr-xr-x 1 root root 6704 Mar 13 15:10 initialization.sh
-rw-r--r-- 1 root root 122 May 10 11:05 kafkastart.sh
-rw-r--r-- 1 root root 88 May 10 10:26 zkstart.sh
[root@emm-kafka01-10--174 scripts]# cat kafkastart.sh
#!/bin/bash
source /etc/profile
nohup /usr/local/kafka/bin/kafka-server-start.sh /usr/local/kafka/config/server.properties 1>/dev/null 2>&1 &
[root@emm-kafka01-10--174 scripts]# scp kafkastart.sh root@10.2.10.175:/opt/scripts/
kafkastart.sh 100% 122 70.8KB/s 00:00
[root@emm-kafka01-10--174 scripts]# scp kafkastart.sh root@10.2.10.176:/opt/scripts/
kafkastart.sh 100% 122 61.6KB/s 00:00
[root@emm-kafka01-10--174 scripts]# sh kafkastart.sh
[root@emm-kafka01-10--174 scripts]# jps
11185 Jps
7974 QuorumPeerMain
10856 Kafka[root@emm-kafka01-10--174 scripts]# netstat -lntup
Active Internet connections (only servers)
Proto Recv-Q Send-Q Local Address Foreign Address State PID/Program name
tcp 0 0 127.0.0.1:25 0.0.0.0:* LISTEN 1379/master
tcp 0 0 0.0.0.0:22 0.0.0.0:* LISTEN 1110/sshd
tcp6 0 0 ::1:25 :::* LISTEN 1379/master
tcp6 0 0 :::39549 :::* LISTEN 10856/java
tcp6 0 0 :::9092 :::* LISTEN 10856/java
tcp6 0 0 :::2181 :::* LISTEN 7974/java
tcp6 0 0 10.2.10.174:3888 :::* LISTEN 7974/java
tcp6 0 0 :::33264 :::* LISTEN 7974/java
tcp6 0 0 :::22 :::* LISTEN 1110/sshd 添加到開機自啟動
[root@emm-kafka03-10--176 scripts]# echo "/usr/bin/sh /opt/scripts/kafkastart.sh" >> /etc/rc.d/rc.local
[root@emm-kafka03-10--176 scripts]# cat /etc/rc.d/rc.local
#!/bin/bash
# THIS FILE IS ADDED FOR COMPATIBILITY PURPOSES
#
# It is highly advisable to create own systemd services or udev rules
# to run scripts during boot instead of using this file.
#
# In contrast to previous versions due to parallel execution during boot
# this script will NOT be run after all other services.
#
# Please note that you must run 'chmod +x /etc/rc.d/rc.local' to ensure
# that this script will be executed during boot.
touch /var/lock/subsys/local
ulimit -SHn 65535
echo 'never' >/sys/kernel/mm/transparent_hugepage/enabled
echo 'never' >/sys/kernel/mm/transparent_hugepage/defrag
/usr/bin/sh /opt/scripts/zkstart.sh
/usr/bin/sh /opt/scripts/kafkastart.sh
[root@emm-kafka03-10--176 scripts]# chmod +x /etc/rc.d/rc.localkafka優(yōu)化 參考鏈接：https://www.cnblogs.com/yinzhengjie/p/9994207.html
網(wǎng)頁名稱：kafka生產(chǎn)實例安裝
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