玩家將零售版英特爾 12 代酷睿 i9-12900K 全效能核心超頻到 5.2GHz
阿新 • • 發佈：2021-10-20
系統版本：CentOS Linux release 8.3.2011
JDK版本：1.8
Zookpeer版本：3.7.0
此次搭建的叢集為偽叢集，即在一臺機器上開3個例項。
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下載安裝包
[root@i-h0xe1oiq tools]# wget https://dlcdn.apache.org/zookeeper/zookeeper-3.7.0/apache-zookeeper-3.7.0-bin.tar.gz -
解壓安裝包
[root@i-h0xe1oiq tools]# tar xf apache-zookeeper-3.7.0-bin.tar.gz -C /application/ -
檢視解壓後的目錄
[root@i-h0xe1oiq apache-zookeeper-3.7.0-bin]# tree -L 1 . ├── bin ├── conf ├── docs ├── lib ├── LICENSE.txt ├── NOTICE.txt ├── README.md └── README_packaging.md 4 directories, 4 files -
準備配置檔案，進入conf目錄，建立zoo.cfg檔案，內容可複製conf/zoo_sample.cfg。
[root@i-h0xe1oiq conf]# cp zoo_sample.cfg zoo.cfg -
配置檔案說明
# The number of milliseconds of each tick tickTime=2000 # CS通訊心跳數，Zookeeper 伺服器之間或客戶端與伺服器之間維持心跳的時間間隔，也就是每個 tickTime 時間就會發送一個心跳。tickTime以毫秒為單位。 # The number of ticks that the initial # synchronization phase can take initLimit=10 # LF初始通訊時限，叢集中的follower伺服器(F)與leader伺服器(L)之間初始連線時能容忍的最多心跳數（tickTime的數量）。 # The number of ticks that can pass between # sending a request and getting an acknowledgement syncLimit=5 # LF同步通訊時限，叢集中的follower伺服器與leader伺服器之間請求和應答之間能容忍的最多心跳數（tickTime的數量）。 # the directory where the snapshot is stored. # do not use /tmp for storage, /tmp here is just # example sakes. dataDir=/tmp/zookeeper # 資料檔案目錄，Zookeeper儲存資料的目錄，預設情況下，Zookeeper將寫資料的日誌檔案也儲存在這個目錄裡。 # the port at which the clients will connect clientPort=2181 # 客戶端連線埠，客戶端連線 Zookeeper 伺服器的埠，Zookeeper 會監聽這個埠，接受客戶端的訪問請求。 # 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 ## Metrics Providers # # https://prometheus.io Metrics Exporter #metricsProvider.className=org.apache.zookeeper.metrics.prometheus.PrometheusMetricsProvider #metricsProvider.httpPort=7000 #metricsProvider.exportJvmInfo=true # 伺服器名稱與地址：叢集資訊（伺服器編號，伺服器地址，LF通訊埠，選舉埠） # 這個配置項的書寫格式比較特殊，規則如下： # server.N=YYY:A:B # 其中N表示伺服器編號，YYY表示伺服器的IP地址，A為LF通訊埠，表示該伺服器與叢集中的leader交換的資訊的埠。B為選舉埠，表示選舉新leader時伺服器間相互通訊的埠（當leader掛掉時，其餘伺服器會相互通訊，選擇出新的leader）。一般來說，叢集中每個伺服器的A埠都是一樣，每個伺服器的B埠也是一樣。但是當所採用的為偽叢集時，IP地址都一樣，只能時A埠和B埠不一樣。 -
偽叢集準備三份zookeeper例項
[root@i-h0xe1oiq application]# ll -h total 12K drwxr-xr-x 17 cloud-user cloud-user 4.0K Mar 17 2021 apache-zookeeper-3.7.0-2181 drwxr-xr-x 17 root root 4.0K Oct 25 14:54 apache-zookeeper-3.7.0-2182 drwxr-xr-x 17 root root 4.0K Oct 25 14:54 apache-zookeeper-3.7.0-2183 -
各例項配置檔案
# 例項1 tickTime=2000 initLimit=10 syncLimit=5 dataDir=/application/apache-zookeeper-3.7.0-2181/data clientPort=2181 server.1=127.0.0.1:12888:13888 server.2=127.0.0.1:14888:15888 server.3=127.0.0.1:16888:17888 # 例項2 tickTime=2000 initLimit=10 syncLimit=5 dataDir=/application/apache-zookeeper-3.7.0-2182/data clientPort=2182 server.1=127.0.0.1:12888:13888 server.2=127.0.0.1:14888:15888 server.3=127.0.0.1:16888:17888 # 例項3 tickTime=2000 initLimit=10 syncLimit=5 dataDir=/application/apache-zookeeper-3.7.0-2183/data clientPort=2183 server.1=127.0.0.1:12888:13888 server.2=127.0.0.1:14888:15888 server.3=127.0.0.1:16888:17888 -
配置例項ID以區分
# 例項1 [root@i-h0xe1oiq application]# mkdir -p apache-zookeeper-3.7.0-2181/data/ && echo 1 > apache-zookeeper-3.7.0-2181/data/myid # 例項2 [root@i-h0xe1oiq application]# mkdir -p apache-zookeeper-3.7.0-2182/data/ && echo 2 > apache-zookeeper-3.7.0-2182/data/myid # 例項3 [root@i-h0xe1oiq application]# mkdir -p apache-zookeeper-3.7.0-2183/data/ && echo 3 > apache-zookeeper-3.7.0-2183/data/myid -
啟動節點
[root@i-h0xe1oiq application]# ./apache-zookeeper-3.7.0-2181/bin/zkServer.sh start ZooKeeper JMX enabled by default Using config: /application/apache-zookeeper-3.7.0-2181/bin/../conf/zoo.cfg Starting zookeeper ... STARTED [root@i-h0xe1oiq application]# ./apache-zookeeper-3.7.0-2182/bin/zkServer.sh start ZooKeeper JMX enabled by default Using config: /application/apache-zookeeper-3.7.0-2182/bin/../conf/zoo.cfg Starting zookeeper ... STARTED [root@i-h0xe1oiq application]# ./apache-zookeeper-3.7.0-2183/bin/zkServer.sh start ZooKeeper JMX enabled by default Using config: /application/apache-zookeeper-3.7.0-2183/bin/../conf/zoo.cfg Starting zookeeper ... STARTED -
檢視節點狀態
[root@i-h0xe1oiq application]# ./apache-zookeeper-3.7.0-2181/bin/zkServer.sh status ZooKeeper JMX enabled by default Using config: /application/apache-zookeeper-3.7.0-2181/bin/../conf/zoo.cfg Client port found: 2181. Client address: localhost. Client SSL: false. Mode: follower [root@i-h0xe1oiq application]# ./apache-zookeeper-3.7.0-2182/bin/zkServer.sh status ZooKeeper JMX enabled by default Using config: /application/apache-zookeeper-3.7.0-2182/bin/../conf/zoo.cfg Client port found: 2182. Client address: localhost. Client SSL: false. Mode: leader [root@i-h0xe1oiq application]# ./apache-zookeeper-3.7.0-2183/bin/zkServer.sh status ZooKeeper JMX enabled by default Using config: /application/apache-zookeeper-3.7.0-2183/bin/../conf/zoo.cfg Client port found: 2183. Client address: localhost. Client SSL: false. Mode: follower