zookeeper自启动

我不是女神ヾ 2022-11-02 01:00 161阅读 0赞

1.创建用户

useradd -m zookeeper

检查：  
cat /etc/passwd  
cat /etc/group  
cd /home/zookeeper------------自行在home下建立了zookeeper目录

2.上传并解压zookeeper，修改配置文件、修改用户及用户组  
1)tar zxf zookeeper-3.4.14.tar.gz

2)chown -R zookeeper:zookeeper zookeeper-3.4.14

3)mv zoo\_sample.cfg zoo.cfg  
vim zoo.cfg

dataDir=/home/zookeeper/zookeeper-3.4.14/data
    dataLogDir=/home/zookeeper/zookeeper-3.4.14/log

4)vim zkEnv.sh

if [ "x${ZOO_LOG_DIR}" = "x" ]
    then
        ZOO_LOG_DIR="${ZOOKEEPER_PREFIX}/log"

5./lib/systemd/system目录下zookeeper.service，内容如下

[Unit]
    Description=zookeeper
    [Service]
    Type=forking
    Environment=ZOO_LOG_DIR=/home/flink/zookeeper-3.4.14/bin
    Environment=JAVA_HOME=/usr/local/java/
    ExecStart=/home/zookeeper/zookeeper-3.4.14/bin/zkServer.sh start
    ExecStop=/home/zookeeper/zookeeper-3.4.14/bin/zkServer.sh stop
    PrivateTmp=true
    User=zookeeper
    Group=zookeeper
     
    [Install]
    WantedBy=multi-user.target

6.systemctl daemon-reload

systemctl start zookeeper

systemctl status zookeeper

systemctl enable zookeeper

systemd-analyze verify zookeeper.service–分析是否存在异常

journalctl -u zookeeper.service  
journalctl -u zookeeper---------查看日志

7.reboot后可以发现可以自启动了

# 遇到问题 #

### systemctl start zookeeper后发现没有报错，但status就发现没有在运行： ###

starting zookeeper...
    Zookeeper jmx enabled by default
    using config: /home/flink/zookeeper-3.4.14/bin/../conf/zoo.cfg
    Starting zookeeper ... STARTED
    Zookeeper JMX enabled by default
    using config: /home/flink/zookeeper-3.4.14/bin/../conf/zoo.cfg
    stopping zookeeper ... /home/flink/zookeeper-3.4.14/bin/zkServer.sh: line 182: kill (24939) - No such process
    STOPPED
    systemd[1]:Started zookeeper.

journalctl -u zookeeper.service----查看日志

...
    Starting zookeeper ...
    ...
    Starting zookeeper ...  STARTED
    ...
    Stopping zookeeper ...
    STOPPED

发现先是成功启动了zookeeper但又自行调用了STOP，参考  
https://blog.csdn.net/Peter\_JJH/article/details/108446380，

zookeeper.service加入  
RemainAfterExit=yes

再执行就成功了

> systemctl start zookeeper

**但后面还是出现了报错**  
查看zookeeper.out,发现

nohup: failed to run command `java': No such file or directory

发现其实是找到JAVA\_HOME导致，加入下面即可

> which java
    /usr/local/java/bin/java
    
    则只需要在zookeeper.service加入
    Environment=JAVA_HOME=/usr/local/java

### 启动报错：./zookeeper.out: Permission denied ###

![在这里插入图片描述][2021022516175375.png]  
从上面图片看出使用flink用户在根目录进行启动，尝试在当前目录新建zookeeper.out发现没有权限 导致

**解决**

*  移到用户权限目录下执行；
 *  修改zkEnv.sh中ZOO\_LOG\_DIR="$\{ZOOKEEPER\_PREFIX\}/log"
 *  修改zookeeper.service  
    Environment=ZOO\_LOG\_DIR=/home/flink/zookeeper-3.4.14/bin

[2021022516175375.png]: /images/20221024/32025bbea1104240aa93475539ae8149.png