使用ll命令和chown命令对zookeeper文件的拥有者进行修改后,在普通用户hadoop下启动zookeeper,但是报一下错误:
[hadoop@Slave1 zookeeper]$ bin/zkServer.sh start
JMX enabled by default
Using config: /usr/local/zookeeper/bin/../conf/zoo.cfg
Starting zookeeper ... bin/zkServer.sh: line 113: /usr/local/zookeeper/zkdata/zookeeper_server.pid: Permission denied
FAILED TO WRITE PID
[hadoop@Slave1 zookeeper]$ 主要错误点是:Permission denied FAILED TO WRITE PID,字面意思是没有写权限。
接下来,使用chmod命令增加权限,再次启动,成功:
[hadoop@Slave1 local]$ su
Password:
[root@Slave1 local]# chmod a+xwr zookeeper/
[root@Slave1 local]# exit
exit
[hadoop@Slave1 local]$ cd zookeeper/
[hadoop@Slave1 zookeeper]$ bin/zkServer.sh start
JMX enabled by default
Using config: /usr/local/zookeeper/bin/../conf/zoo.cfg
Starting zookeeper ... STARTED
[hadoop@Slave1 zookeeper]$

在使用hadoop用户启动Zookeeper服务时遇到Permission denied错误,通过增加目录权限成功解决。
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