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链接
Markdown 链接 添加标题 自动链接（Urls 和 邮件地址链接） 格式化链接 参考样式链接 格式化链接的第一部分 格式化链接的第二部分 格式化链接示例 最佳实践 Markdown 链接 要创建链接，请将链接文本放在方括号中（例如[Duck Duck Go]），然后立即在其后加上括号中的URL（例如（https://duckduc... -
Types of Classes
JDO provides a means of transparent persistence of objects of user defined classes. With JDO there are actually 3 types of classes. Persistence Capable classes are classes whose... -
1. Getting Ready
This section describes the information and materials you should get ready to install a cluster using Ambari. Ambari provides an end-to-end management and monitoring solution for y... -
Collections
_.at(collection [, index1, index2, …]) Arguments Returns Example _.contains(collection, target [, fromIndex=0]) Aliases Arguments Returns Example _.countBy(collection [, c... -
Logic
and isEmpty not or cond ifElse allPass anyPass defaultTo both complement either propSatisfies unless when pathSatisfies until xor isNotEmpty and a → b → a | b... -
Logic
and isEmpty not or cond ifElse allPass anyPass defaultTo both complement either propSatisfies unless when pathSatisfies until xor and a → b → a | b Added in ... -
Job Configuration Files
Job Configuration Basics Hierarchical Structure of Job Configuration Files Password Encryption Adding or Changing Job Configuration Files Scheduled Jobs One Time Jobs Disable... -
第五章：synchronized关键字
学习目标 1. 对象锁与类锁的概念 1.1 对象锁（实例锁） 1.2 类锁（静态锁） 1.3 对象锁与类锁的对比 2. synchronized修饰方法与代码块的区别 2.1 修饰方法 vs 修饰代码块 2.2 不同锁对象的选择 3. synchronized的底层实现原理 3.1 Monitor监视器 3.2 字节码层面的实现 3.3 ... -
String
match split trim replace toLower toUpper test toString match RegExp → String → [String | Undefined] Parameters rxA regular expression. strThe string to match against... -
Set Up Password-less SSH
About This Task Steps About This Task To have Ambari Server automatically install Ambari Agents on all your cluster hosts, you must set up password-less SSH connections betwee...
