HDFS 异常
HTTP ERROR 500
Problem accessing /nn_browsedfscontent.jsp. Reason:
Cannot issue delegation token. Name node is in safe mode.
The reported blocks 0 needs additional 10 blocks to reach the threshold 0.9990 of total blocks 10.
Safe mode will be turned off automatically
Caused by:
org.apache.hadoop.hdfs.server.namenode.SafeModeException: Cannot issue delegation token. Name node is in safe mode.HTTP ERROR 500
Problem accessing /nn_brow
