Caused by: org.apache.hadoop.ipc.RemoteException(org.apache.hadoop.security.AccessControlException):

解决办法有两个

第一种：去掉hdfs的用户权限检验机制，通过在hdfs-site.xml中配置dfs.permissions.enabled为false即可

第二种：把代码打包到linux中执行

在这里为了在本地测试方便，我们先使用第一种方式

1：停止Hadoop集群

[root@bigdata01 ~]# cd /data/soft/hadoop-3.2.0
[root@bigdata01 hadoop-3.2.0]# sbin/stop-all.sh
Stopping namenodes on [bigdata01]
Last login: Wed Apr  8 20:25:17 CST 2020 from 192.168.182.1 on pts/1
Stopping datanodes
Last login: Wed Apr  8 20:25:40 CST 2020 on pts/1
Stopping secondary namenodes [bigdata01]
Last login: Wed Apr  8 20:25:41 CST 2020 on pts/1
Stopping nodemanagers
Last login: Wed Apr  8 20:25:44 CST 2020 on pts/1
Stopping resourcemanager
Last login: Wed Apr  8 20:25:47 CST 2020 on pts/1

2：修改hdfs-site.xml配置文件

注意：集群内所有节点中的配置文件都需要修改，先在bigdata01节点上修改，然后再同步到另外两个节点上

在bigdata01上操作

[root@bigdata01 hadoop-3.2.0]# vi etc/hadoop/hdfs-site.xml

    
        dfs.replication
        2
    
    
        dfs.namenode.secondary.http-address
        bigdata01:50090
    
    
        dfs.permissions.enabled
        false
    

同步到另外两个节点中

[root@bigdata01 hadoop-3.2.0]# scp -rq etc/hadoop/hdfs-site.xml  bigdata02:/data/soft/hadoop-3.2.0/etc/hadoop/
[root@bigdata01 hadoop-3.2.0]# scp -rq etc/hadoop/hdfs-site.xml  bigdata03:/data/soft/hadoop-3.2.0/etc/hadoop/

3：启动Hadoop集群

[root@bigdata01 hadoop-3.2.0]# sbin/start-all.sh 
Starting namenodes on [bigdata01]
Last login: Wed Apr  8 20:25:49 CST 2020 on pts/1
Starting datanodes
Last login: Wed Apr  8 20:29:57 CST 2020 on pts/1
Starting secondary namenodes [bigdata01]
Last login: Wed Apr  8 20:29:59 CST 2020 on pts/1
Starting resourcemanager
Last login: Wed Apr  8 20:30:04 CST 2020 on pts/1
Starting nodemanagers
Last login: Wed Apr  8 20:30:10 CST 2020 on pts/1