直接在cdh上配置
HDFS -> 配置 -> datanode ->DataNode 数据目录dfs.data.dir,dfs.datanode.data.dir
增加一个目录,不用提前创建
[root@hs03 dn]# hadoop fs -df -h
Filesystem Size Used Available Use%
hdfs://hs03:8020 854.0 G 291.8 G 337.7 G 34%
[root@hs03 dn]# df -h
Filesystem Size Used Avail Use% Mounted on
/dev/mapper/vg_dev023053-lv_root 295G 229G 52G 82% /
tmpfs 16G 0 16G 0% /dev/shm
/dev/sda1 477M 33M 419M 8% /boot
cm_processes 16G 89M 16G 1% /opt/cm-5.7.1/run/cloudera-scm-agent/process
[root@hs03 dn]# hadoop fs -df -h
Filesystem Size Used Available Use%
hdfs://hs03:8020 859.7 G 291.8 G 343.5 G 34%
[root@hs03 dn]#