tail f hadoop-root-datanode-HBMS-DKXD-DEV.log
tail f hadoop-root-datanode-HBMS-DKXD-DEV.log -n 100
locate VERSON
vi /hdfs/datanode/current/VERSION
datanode起不起来
原文：http://10226243.blog.51cto.com/10216243/1684017
