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第四章：线程安全问题
学习目标 1. 什么是线程安全 1.1 线程安全的定义 1.2 线程安全的重要性 2. 共享资源访问的竞态条件 2.1 什么是竞态条件 2.2 竞态条件示例 2.3 竞态条件的类型 读-改-写竞态条件 检查再执行竞态条件 3. 线程安全问题的表现形式 3.1 原子性问题 3.2 可见性问题 3.3 有序性问题 4. 实战案例：商品... -
Start the Ambari Server
Next Steps More Information Run the following command on the Ambari Server host: ambari - server start To check the Ambari Server processes: ambari - server status ... -
EventMesh Runtime Quick Start
EventMesh Runtime Quick Start 1. Binary Distribution Deployment 1.1 Environment 1.2 Download 1.3 Configuration 1.3.1 EventMesh Runtime Configuration 1.3.2 Event Store Configurat... -
Google Webmaster
Introduction Implementation Summary Entities Work Flow Configuration Introduction The Google Search Console data ingestion project is to download query and analytics data f... -
Configuring iptables
RHEL/CentOS/Oracle/Amazon Linux SLES Ubuntu Debian For Ambari to communicate during setup with the hosts it deploys to and manages, certain ports must be open and available. T... -
Christophe Dervieux
Christophe Dervieux is an active member of the R community, currently living in France. With a master’s degree in energy and economics, he started working with R as an analyst doi... -
Configure Postgres to Allow Remote Connections
About This Task Steps About This Task It is critical that you configure Postgres to allow remote connections before you deploy a cluster. If you do not perform these steps in ... -
第二章：线程的生命周期
学习目标 1. 线程的六大状态：NEW、RUNNABLE、BLOCKED、WAITING、TIMED_WAITING、TERMINATED 1.1 NEW（新建） 1.2 RUNNABLE（可运行） 1.3 BLOCKED（阻塞） 1.4 WAITING（等待） 1.5 TIMED_WAITING（限时等待） 1.6 TERMINATED（终止）... -
About the Authors
Yihui typed out most of the words in this book, which is the only justification for him being the “first” author. Christophe has made substantial contribution to this book by help... -
任务实例
批量任务实例 实时任务实例 批量任务实例 点击项目管理->工作流->任务实例，进入任务实例页面，如下图所示，点击工作流实例名称，可跳转到工作流实例DAG图查看任务状态。 查看日志：点击操作列中的“查看日志”按钮，可以查看任务执行的日志情况。 实时任务实例 切换到实时任务实例页面，如下图所示： SavePoint：点击操作列...
