Zookeeper 安装
ZooKeeper服务器是用Java创建的，它在JVM上运行。你需要使用JDK 6或更高版本。
现在，按照以下步骤在你的机器上安装ZooKeeper框架。
步骤1：验证Java安装
相信你已经在系统上安装了Java环境。现在只需使用以下命令验证它。
<pre class="result notranslate" style="margin: 15px 0px; padding: 10px; position: relative; width: 700px; box-sizing: border-box; display: block; line-height: 1.7; background-color: rgb(32, 30, 47); border-radius: 3px; font-size: 14px; font-family: Consolas, "Liberation Mono", Menlo, Courier, monospace; overflow-x: auto; border: 1px solid rgb(32, 30, 47); color: rgb(248, 248, 242); overflow-wrap: break-word !important; white-space: pre-wrap !important; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-weight: 400; letter-spacing: normal; orphans: 2; text-align: start; text-indent: 0px; text-transform: none; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; text-decoration-style: initial; text-decoration-color: initial;">$ java -version
</pre>如果你在机器上安装了Java，那么可以看到已安装的Java的版本。否则，请按照以下简单步骤安装最新版本的Java。
步骤1.1：下载JDK
通过访问链接下载最新版本的JDK，并下载最新版本的Java。
最新版本（在编写本教程时）是JDK 8u 60，文件是“jdk-8u60-linuxx64.tar.gz"。请在你的机器上下载该文件。
步骤1.2：提取文件
通常，文件会下载到download文件夹中。验证并使用以下命令提取tar设置。
<pre class="result notranslate" style="margin: 15px 0px; padding: 10px; position: relative; width: 700px; box-sizing: border-box; display: block; line-height: 1.7; background-color: rgb(32, 30, 47); border-radius: 3px; font-size: 14px; font-family: Consolas, "Liberation Mono", Menlo, Courier, monospace; overflow-x: auto; border: 1px solid rgb(32, 30, 47); color: rgb(248, 248, 242); overflow-wrap: break-word !important; white-space: pre-wrap !important; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-weight: 400; letter-spacing: normal; orphans: 2; text-align: start; text-indent: 0px; text-transform: none; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; text-decoration-style: initial; text-decoration-color: initial;">
tar -zxf jdk-8u60-linux-x64.gz
</pre>步骤1.3：移动到opt目录
要使Java对所有用户可用，请将提取的Java内容移动到“/usr/local/java"文件夹。
<pre class="result notranslate" style="margin: 15px 0px; padding: 10px; position: relative; width: 700px; box-sizing: border-box; display: block; line-height: 1.7; background-color: rgb(32, 30, 47); border-radius: 3px; font-size: 14px; font-family: Consolas, "Liberation Mono", Menlo, Courier, monospace; overflow-x: auto; border: 1px solid rgb(32, 30, 47); color: rgb(248, 248, 242); overflow-wrap: break-word !important; white-space: pre-wrap !important; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-weight: 400; letter-spacing: normal; orphans: 2; text-align: start; text-indent: 0px; text-transform: none; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; text-decoration-style: initial; text-decoration-color: initial;">
mkdir /opt/jdk
$ mv jdk-1.8.0_60 /opt/jdk/
</pre>步骤1.4：设置路径
要设置路径和JAVA_HOME变量，请将以下命令添加到〜/.bashrc文件中。
<pre class="result notranslate" style="margin: 15px 0px; padding: 10px; position: relative; width: 700px; box-sizing: border-box; display: block; line-height: 1.7; background-color: rgb(32, 30, 47); border-radius: 3px; font-size: 14px; font-family: Consolas, "Liberation Mono", Menlo, Courier, monospace; overflow-x: auto; border: 1px solid rgb(32, 30, 47); color: rgb(248, 248, 242); overflow-wrap: break-word !important; white-space: pre-wrap !important; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-weight: 400; letter-spacing: normal; orphans: 2; text-align: start; text-indent: 0px; text-transform: none; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; text-decoration-style: initial; text-decoration-color: initial;">export JAVA_HOME = /usr/jdk/jdk-1.8.0_60
export PATH=
JAVA_HOME/bin
</pre>现在，将所有更改应用到当前运行的系统中。
<pre class="result notranslate" style="margin: 15px 0px; padding: 10px; position: relative; width: 700px; box-sizing: border-box; display: block; line-height: 1.7; background-color: rgb(32, 30, 47); border-radius: 3px; font-size: 14px; font-family: Consolas, "Liberation Mono", Menlo, Courier, monospace; overflow-x: auto; border: 1px solid rgb(32, 30, 47); color: rgb(248, 248, 242); overflow-wrap: break-word !important; white-space: pre-wrap !important; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-weight: 400; letter-spacing: normal; orphans: 2; text-align: start; text-indent: 0px; text-transform: none; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; text-decoration-style: initial; text-decoration-color: initial;">$ source ~/.bashrc
</pre>步骤1.5：Java替代
使用以下命令更改Java替代项。
<pre class="result notranslate" style="margin: 15px 0px; padding: 10px; position: relative; width: 700px; box-sizing: border-box; display: block; line-height: 1.7; background-color: rgb(32, 30, 47); border-radius: 3px; font-size: 14px; font-family: Consolas, "Liberation Mono", Menlo, Courier, monospace; overflow-x: auto; border: 1px solid rgb(32, 30, 47); color: rgb(248, 248, 242); overflow-wrap: break-word !important; white-space: pre-wrap !important; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-weight: 400; letter-spacing: normal; orphans: 2; text-align: start; text-indent: 0px; text-transform: none; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; text-decoration-style: initial; text-decoration-color: initial;">update-alternatives --install /usr/bin/java java /opt/jdk/jdk1.8.0_60/bin/java 100
</pre>步骤1.6
使用步骤1中说明的验证命令(java -version)验证Java安装。
步骤2：ZooKeeper框架安装
步骤2.1：下载ZooKeeper
要在你的计算机上安装ZooKeeper框架，请访问以下链接并下载最新版本的ZooKeeper。http://zookeeper.apache.org/releases.html
到目前为止，最新版本的ZooKeeper是3.4.6(ZooKeeper-3.4.6.tar.gz)。
步骤2.2：提取tar文件
使用以下命令提取tar文件
<pre class="result notranslate" style="margin: 15px 0px; padding: 10px; position: relative; width: 700px; box-sizing: border-box; display: block; line-height: 1.7; background-color: rgb(32, 30, 47); border-radius: 3px; font-size: 14px; font-family: Consolas, "Liberation Mono", Menlo, Courier, monospace; overflow-x: auto; border: 1px solid rgb(32, 30, 47); color: rgb(248, 248, 242); overflow-wrap: break-word !important; white-space: pre-wrap !important; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-weight: 400; letter-spacing: normal; orphans: 2; text-align: start; text-indent: 0px; text-transform: none; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; text-decoration-style: initial; text-decoration-color: initial;">tar -zxf zookeeper-3.4.6.tar.gz
mkdir data
</pre>步骤2.3：创建配置文件
使用命令** vi conf/zoo.cfg 和所有以下参数设置为起点，打开名为 conf/zoo.cfg **的配置文件。
<pre class="result notranslate" style="margin: 15px 0px; padding: 10px; position: relative; width: 700px; box-sizing: border-box; display: block; line-height: 1.7; background-color: rgb(32, 30, 47); border-radius: 3px; font-size: 14px; font-family: Consolas, "Liberation Mono", Menlo, Courier, monospace; overflow-x: auto; border: 1px solid rgb(32, 30, 47); color: rgb(248, 248, 242); overflow-wrap: break-word !important; white-space: pre-wrap !important; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-weight: 400; letter-spacing: normal; orphans: 2; text-align: start; text-indent: 0px; text-transform: none; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; text-decoration-style: initial; text-decoration-color: initial;">$ vi conf/zoo.cfg
tickTime = 2000
dataDir = /path/to/zookeeper/data
clientPort = 2181
initLimit = 5
syncLimit = 2
</pre>一旦成功保存配置文件，再次返回终端。你现在可以启动zookeeper服务器。
步骤2.4：启动ZooKeeper服务器
执行以下命令
<pre class="result notranslate" style="margin: 15px 0px; padding: 10px; position: relative; width: 700px; box-sizing: border-box; display: block; line-height: 1.7; background-color: rgb(32, 30, 47); border-radius: 3px; font-size: 14px; font-family: Consolas, "Liberation Mono", Menlo, Courier, monospace; overflow-x: auto; border: 1px solid rgb(32, 30, 47); color: rgb(248, 248, 242); overflow-wrap: break-word !important; white-space: pre-wrap !important; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-weight: 400; letter-spacing: normal; orphans: 2; text-align: start; text-indent: 0px; text-transform: none; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; text-decoration-style: initial; text-decoration-color: initial;">$ bin/zkServer.sh start
</pre>执行此命令后，你将收到以下响应
<pre class="result notranslate" style="margin: 15px 0px; padding: 10px; position: relative; width: 700px; box-sizing: border-box; display: block; line-height: 1.7; background-color: rgb(32, 30, 47); border-radius: 3px; font-size: 14px; font-family: Consolas, "Liberation Mono", Menlo, Courier, monospace; overflow-x: auto; border: 1px solid rgb(32, 30, 47); color: rgb(248, 248, 242); overflow-wrap: break-word !important; white-space: pre-wrap !important; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-weight: 400; letter-spacing: normal; orphans: 2; text-align: start; text-indent: 0px; text-transform: none; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; text-decoration-style: initial; text-decoration-color: initial;">
Using config: /Users/../zookeeper-3.4.6/bin/../conf/zoo.cfg
$ Starting zookeeper ... STARTED
</pre>步骤2.5：启动CLI
键入以下命令
<pre class="result notranslate" style="margin: 15px 0px; padding: 10px; position: relative; width: 700px; box-sizing: border-box; display: block; line-height: 1.7; background-color: rgb(32, 30, 47); border-radius: 3px; font-size: 14px; font-family: Consolas, "Liberation Mono", Menlo, Courier, monospace; overflow-x: auto; border: 1px solid rgb(32, 30, 47); color: rgb(248, 248, 242); overflow-wrap: break-word !important; white-space: pre-wrap !important; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-weight: 400; letter-spacing: normal; orphans: 2; text-align: start; text-indent: 0px; text-transform: none; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; text-decoration-style: initial; text-decoration-color: initial;">$ bin/zkCli.sh
</pre>键入上述命令后，将连接到ZooKeeper服务器，你应该得到以下响应。
<pre class="result notranslate" style="margin: 15px 0px; padding: 10px; position: relative; width: 700px; box-sizing: border-box; display: block; line-height: 1.7; background-color: rgb(32, 30, 47); border-radius: 3px; font-size: 14px; font-family: Consolas, "Liberation Mono", Menlo, Courier, monospace; overflow-x: auto; border: 1px solid rgb(32, 30, 47); color: rgb(248, 248, 242); overflow-wrap: break-word !important; white-space: pre-wrap !important; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-weight: 400; letter-spacing: normal; orphans: 2; text-align: start; text-indent: 0px; text-transform: none; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; text-decoration-style: initial; text-decoration-color: initial;">Connecting to localhost:2181
................
................
................
Welcome to ZooKeeper!
................
................
WATCHER::
WatchedEvent state:SyncConnected type: None path:null
[zk: localhost:2181(CONNECTED) 0]
</pre>停止ZooKeeper服务器
连接服务器并执行所有操作后，可以使用以下命令停止zookeeper服务器。
<pre class="result notranslate" style="margin: 15px 0px; padding: 10px; position: relative; width: 700px; box-sizing: border-box; display: block; line-height: 1.7; background-color: rgb(32, 30, 47); border-radius: 3px; font-size: 14px; font-family: Consolas, "Liberation Mono", Menlo, Courier, monospace; overflow-x: auto; border: 1px solid rgb(32, 30, 47); color: rgb(248, 248, 242); overflow-wrap: break-word !important; white-space: pre-wrap !important; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-weight: 400; letter-spacing: normal; orphans: 2; text-align: start; text-indent: 0px; text-transform: none; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; text-decoration-style: initial; text-decoration-color: initial;">$ bin/zkServer.sh stop</pre>本文参与 腾讯云自媒体分享计划，分享自作者个人站点/博客。
原始发表：2019.10.24 ，如有侵权请联系 cloudcommunity@tencent.com 删除
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