org.apache.hadoop.ipc.RemoteException: java.io.IOException:XXXXXXXXXXX could only be replicated to 0 nodes, instead of 1

原因：Configured Capacity也就是datanode 没用分配容量

[root@dev9106 bin]# ./hadoop dfsadmin -report

Configured Capacity: 0 (0 KB)

Present Capacity: 0 (0 KB)

DFS Remaining: 0 (0 KB)

DFS Used: 0 (0 KB)

DFS Used%: ?%

Under replicated blocks: 0

Blocks with corrupt replicas: 0

Missing blocks: 0

解决方法：

1. 查看你的文件系统

[root@dev9106 /]# df -hl

文件系统 容量 已用 可用 已用% 挂载点

/dev/sda3 1.9G 1.6G 302M 84% /

/dev/sda8 845G 47G 756G 6% /home

/dev/sda7 5.7G 147M 5.3G 3% /tmp

/dev/sda6 9.5G 4.0G 5.1G 45% /usr

/dev/sda5 9.5G 273M 8.8G 3% /var

/dev/sda1 190M 15M 167M 8% /boot

tmpfs 7.8G 0 7.8G 0% /dev/shm

1. 修改文件Hadoop conf/core-site.xml 中hadoop.tmp.dir的值

<property>

<name>fs.default.name</name>

<value>hdfs://localhost:9000</value>

</property>

<property>

<name>hadoop.tmp.dir</name>

<value>/home/dhfs/tmp</value>

</property>

</configuration>

1. 停止hadoop服务，重新格式化namenode

4.重启服务

5.Ok