前言 本人在Centos7服务器上启动redis,报如下问题: WARNING overcommit_memory is set to 0! Background save may fail under low memory condition. To fix this issue add ‘vm.overcommit_memory = 1’ to /etc/sysctl.conf and the
Race Condition Question – why was there no race condition in the first solution (where at most N – 1) buffers can be filled?Processes P0 and P1 are creating child processes using the fork() system
在springboot的自动化配置中,这个注解起到了相当重要的作用。 其一般与@Bean注解一起使用,作用就是满足一定条件才将@Bean修饰的bean注入容器。 下面看一个例子,仅仅当classpath下有某一个类才注入bean。 定义一个Condition接口的实现: public class MyCondition implements Condition {@Overridepu