redhat 6.4 安装VirtualBox自动增强功能功能的时候提示: building the main Guest Additions module FAILED unable to find the sources of your current Linux kernel. Specify KERN_DIR-<directory> and run Make again 这个时候需要检测gcc make kernel-level kernel-header 等文件是否安装.具体使用如下…
hbase的快照功能常常被用来做数据的恢复的,但是由于项目的特殊需求需要改hbase表的表名.在官网上通过快照功能来修改hbase表名的用法: 下面展示用shell命令的和Java api两种方式: In versions 0.90.x of hbase and earlier, we had a simple script that would rename the hdfs table directory and then do an edit of the hbase:meta table…