我使用hadoop2.6.0。
当我逼的Hadoop离开安全模式下,使用hdfs dfsadmin -safemode leave
,它显示Safe mode is OFF
,但我仍然无法删除该文件在目录中,结果表明: rm: Cannot delete /mei/app-20151013055617-0001-614d554c-cc04-4800-9be8-7d9b3fd3fcef. Name node is in safe mode.
我尝试使用来解决这个问题上市的方式在互联网上,这是行不通的......
我使用命令“HDFS dfsadmin -report”,它显示:
Safe mode is ON
Configured Capacity: 52710469632 (49.09 GB)
Present Capacity: 213811200 (203.91 MB)
DFS Remaining: 0 (0 B)
DFS Used: 213811200 (203.91 MB)
DFS Used%: 100.00%
Under replicated blocks: 39
Blocks with corrupt replicas: 0
Missing blocks: 0
-------------------------------------------------
Live datanodes (1):
Name: 127.0.0.1:50010 (bdrhel6)
Hostname: bdrhel6
Decommission Status : Normal
Configured Capacity: 52710469632 (49.09 GB)
DFS Used: 213811200 (203.91 MB)
Non DFS Used: 52496658432 (48.89 GB)
DFS Remaining: 0 (0 B)
DFS Used%: 0.41%
DFS Remaining%: 0.00%
Configured Cache Capacity: 0 (0 B)
Cache Used: 0 (0 B)
Cache Remaining: 0 (0 B)
Cache Used%: 100.00%
Cache Remaining%: 0.00%
Xceivers: 1
Last contact: Wed Oct 14 03:30:33 EDT 2015
有没有人有同样的问题?
对此有任何帮助。
看来,数据节点没有足够的内存来存储数据了。释放内存或在群集中添加另一个数据节点。 – Kumar