1.定时执行脚本#!/bin/bash source /etc/profile sh ./hbase shell <<EOF major_compact 'table_name' EOF 语法: #Compact all regions in a table: hbase> major_compact 't1' #Compact an entire region: hbase> major_compact 'r1' #Compact a single column family w…
java修饰符分类修饰符字段修饰符方法修饰符根据功能同主要分下几种 1.权限访问修饰符 public,protected,default,private,四种级别修饰符都用来修饰类.方法和字段 包外 子类 包内 类内 public yes yes yes yes protected no yes yes yes default no no yes yes private no no no yes 2.final修饰符 final意思变修饰类.字段.方法修饰类类能被扩展(extends)也能被继承…