天天看點
傳回

Centos7+zookeeper單機部署叢集前述：環境：準備：檔案結構操作一：操作二：防火牆設定批處理啟動

前述：

近日需要用到zookeeper叢集，硬體缺少隻能以軟體來補。在一台Centos7的機器上部署多個zookeeper的執行個體，這裡進行記  錄，或許以後再遇到叢集搭建，不必耗費時間去搜羅資料。

環境：

Centos7+java1.8。

準備：

zookeeper-3.4.14.tar.gz安裝包，下載下傳位址http://archive.apache.org/dist/zookeeper/zookeeper-3.4.14/

檔案結構

|----opt

|---------zookeeper

|-----------------------zk1

|-----------------------zk2

|-----------------------zk3

操作一：

1、使用管理者權限操作，避免出現權限問題。

[[email protected] ~]$ su root

2、進入opt目錄，如果沒有此檔案請自行建立

[[email protected] administrator]# cd /opt/

3、建立zookeeper目錄

[[email protected] opt]# mkdir zookeeper

 4、進入到zookeeper目錄

[[email protected] opt]# cd zookeeper

5、将zookeeper-3.4.14.tar.gz檔案放置到zookeeper路徑下，并解壓

[[email protected] zookeeper]# tar -xvf zookeeper-3.4.14.tar.gz

6、把解壓後的檔案zookeeper-3.4.14重命名為zk1

[[email protected] zookeeper]# mv zookeeper-3.4.14 ./zk1

7、在zk1的目錄下建立zkdata存放執行個體的myid

[[email protected] zookeeper]# cd zk1
[[email protected] zk1]#mkdir zkdata
[[email protected] zk1]#vi ./zkdata/myid

myid的檔案内容輸入數字1，儲存即可。此數值在叢集中是唯一的不可重複（數值範圍1-255）

8、建立zoo.cfg配置檔案

[[email protected] zookeeper]# cp /opt/zookeeper/zk1/conf/zoo_sample.cfg /opt/zookeeper/zk1/conf/zoo.cfg

9、配置zoo.cfg檔案

[[email protected] zookeeper]# vi /opt/zookeeper/zk1/conf/zoo.cfg

檔案内容如下：

# The number of milliseconds of each tick

tickTime=2000

# The number of ticks that the initial

# synchronization phase can take

initLimit=10

# The number of ticks that can pass between

# sending a request and getting an acknowledgement

syncLimit=5

# the directory where the snapshot is stored.

# do not use /tmp for storage, /tmp here is just

# example sakes.

dataDir=/opt/zookeeper/zk1/zkdata

# the port at which the clients will connect

clientPort=2191

# the maximum number of client connections.

# increase this if you need to handle more clients

#maxClientCnxns=60

#

# Be sure to read the maintenance section of the

# administrator guide before turning on autopurge.

#

# http://zookeeper.apache.org/doc/current/zookeeperAdmin.html#sc_maintenance

#

# The number of snapshots to retain in dataDir

#autopurge.snapRetainCount=3

# Purge task interval in hours

# Set to "0" to disable auto purge feature

#autopurge.purgeInterval=1

server.1=127.0.0.1:20881:30881

server.2=127.0.0.1:20882:30882

server.3=127.0.0.1:20883:30883

釋：

dataDir=/opt/zookeeper/zk1/zkdata  #表示zookeeper服務的ID資料。

clientPort=2191  #用戶端的端口号。

server.1=127.0.0.1:20881:30881

server.2=127.0.0.1:20882:30882

server.3=127.0.0.1:20883:30883

叢集服務至少為三個，這裡三個服務的（服務名稱=服務位址：監聽端口:選舉端口）

此處服務位址全部為127.0.0.1，因為是在一台機器上部署3個執行個體；如果在多台機器部署，要根據實際ip位址配置。

操作二：

前面已經配置好一個執行個體，在此基礎上配置第二、第三個執行個體就會輕松些。具體操作這裡簡化一些。

1、根據zk1複制出zk2和zk3

[[email protected] zk1]# cd /opt/zookeeper
[[email protected] zookeeper]# cp  /opt/zookeeper/zk1 /opt/zookeeper/zk2
[[email protected] zookeeper]# cp  /opt/zookeeper/zk1 /opt/zookeeper/zk3

2、修改zk2和zk3的zoo.cfg檔案

[[email protected] zookeeper]# vi /opt/zookeeper/zk2/conf/zoo.cfg

具體變更部分為紅色部分

# The number of milliseconds of each tick

tickTime=2000

# The number of ticks that the initial

# synchronization phase can take

initLimit=10

# The number of ticks that can pass between

# sending a request and getting an acknowledgement

syncLimit=5

# the directory where the snapshot is stored.

# do not use /tmp for storage, /tmp here is just

# example sakes.

dataDir=/opt/zookeeper/zk2/zkdata

# the port at which the clients will connect

clientPort=2192

# the maximum number of client connections.

# increase this if you need to handle more clients

#maxClientCnxns=60

#

# Be sure to read the maintenance section of the

# administrator guide before turning on autopurge.

#

# http://zookeeper.apache.org/doc/current/zookeeperAdmin.html#sc_maintenance

#

# The number of snapshots to retain in dataDir

#autopurge.snapRetainCount=3

# Purge task interval in hours

# Set to "0" to disable auto purge feature

#autopurge.purgeInterval=1

server.1=127.0.0.1:20881:30881

server.2=127.0.0.1:20882:30882

server.3=127.0.0.1:20883:30883

配置zk3的zoo.cfg

[[email protected] zookeeper]# vi /opt/zookeeper/zk3/conf/zoo.cfg

變更内容為紅色部分

 # The number of milliseconds of each tick

tickTime=2000

# The number of ticks that the initial

# synchronization phase can take

initLimit=10

# The number of ticks that can pass between

# sending a request and getting an acknowledgement

syncLimit=5

# the directory where the snapshot is stored.

# do not use /tmp for storage, /tmp here is just

# example sakes.

dataDir=/opt/zookeeper/zk3/zkdata

# the port at which the clients will connect

clientPort=2193

# the maximum number of client connections.

# increase this if you need to handle more clients

#maxClientCnxns=60

#

# Be sure to read the maintenance section of the

# administrator guide before turning on autopurge.

#

# http://zookeeper.apache.org/doc/current/zookeeperAdmin.html#sc_maintenance

#

# The number of snapshots to retain in dataDir

#autopurge.snapRetainCount=3

# Purge task interval in hours

# Set to "0" to disable auto purge feature

#autopurge.purgeInterval=1

server.1=127.0.0.1:20881:30881

server.2=127.0.0.1:20882:30882

server.3=127.0.0.1:20883:30883

 3、修改zk2和zk3的myid檔案

[[email protected] zookeeper]# vi /opt/zookeeper/zk2/zkdata/myid

 将數值變更為2

[[email protected] zookeeper]# vi /opt/zookeeper/zk3/zkdata/myid

  将數值變更為3

截止目前，三個zookeeper執行個體已經配置完畢，但還有後續工作需要完成。

防火牆設定

1、zookeeper叢集的端口較多，如果防火牆不開啟所涉及的端口，服務會出現問題。在配置過程中我們已經得知已經涉及9個端口，下面我們逐個開啟這些端口。

[[email protected] zookeeper]# firewall-cmd --permanent --zone=public --add-port=2191-2193/tcp
[[email protected] zookeeper]# firewall-cmd --permanent --zone=public --add-port=20881-20883/tcp
[[email protected] zookeeper]# firewall-cmd --permanent --zone=public --add-port=30881-30883/tcp

2、重新加載防火牆

[[email protected] zookeeper]#firewall-cmd --reload

3、 檢視防火牆中這9個端口是否狀态

[[email protected] zookeeper]# firewall-cmd --list-ports
20881-20883/tcp 30881-30883/tcp 2191-2193/tcp

批處理啟動

1、為日常操作友善，特意編寫一個批處理檔案啟動執行個體

[[email protected] zookeeper]# vi zkStart.sh

内容如下：

#!/bin/sh

cd /opt/zookeeper/zk1/bin

./zkServer.sh start ../conf/zoo.cfg

cd /opt/zookeeper/zk2/bin

./zkServer.sh start ../conf/zoo.cfg

cd /opt/zookeeper/zk3/bin

./zkServer.sh start ../conf/zoo.cfg

2、運作批處理檔案來啟動這三個執行個體

[[email protected] zookeeper]# vi ./zkStart.sh

 3、運作的結果

ZooKeeper JMX enabled by default
Using config: ../conf/zoo.cfg
Starting zookeeper ... STARTED
ZooKeeper JMX enabled by default
Using config: ../conf/zoo.cfg
Starting zookeeper ... STARTED
ZooKeeper JMX enabled by default
Using config: ../conf/zoo.cfg
Starting zookeeper ... STARTED

可以看出這三個zookeeper執行個體已經啟動成功。

4、再來看看啟動叢集狀态

[root@localhost zookeeper]# ps -ef|grep zookeeper|grep -v grep|wc -l

能看到控制台會出現數字3

至此已經配置成功，完結！

配置手記 Centos7+zookeeper單機部署叢集 zookeeper單機部署叢集 zookeeper單機僞叢集 zookeeper叢集配置
上一篇: c++學習c++學習
下一篇: zookeeper 單機部署、僞叢集

繼續閱讀