as quickly, frequently, cheaply, and as soon as possible i. Institutionalize rituals to increase safety, continuous improvement, and learning ii. Create mechanism to rapidly spread learning throughout evolved beyond it b. ESTABLISH A JUST, LEARNING CULTURE i. Unjust responses to incidents 1. Impede safety 2. Promote fear over mindfulness 3. Create bureaucracy rather than carefulness 4. Cultivate secrecy and gather details of the failure from multiple perspectives2. Empower all engineers to improve safety by allowing them to give detailed accounts of their contributions to the failures 3. Enable and

leadership is actively suppressing, even punishing, learning and improvement, perpetuating quality and safety problems ii. high-trust culture 1. we are all lifelong learners who must take risks in our daily and practices can be used by the entire organization iii. ENABLING ORGANIZATIONAL LEARNING AND A SAFETY CULTURE 1. When we work within a complex system, by definition it is impossible for us to perfectly 2. Dr. Ron Westrum was one of the first to observe the importance of organizational culture on safety and performance. Dr. Westrum defined three types of culture: a. Pathological organizations are

necessarily evolve over its life cycle.” b. AN ARCHITECTURE THAT ENABLES PRODUCTIVITY, TESTABILITY, AND SAFETY i. Loosely-coupled ii. Well-defined interfaces that enforce how modules connect with each other

上执行，不可 在master上执行！！ ★k8s初始化报错（树莓派） CGROUPS_MEMORY: missing [ERROR SystemVerifica�on]: missing required cgroups: memory 因为树莓派系统默认未启动cgroup_memory，解决方法： # vi /boot/firmware/cmdline.txt #如果有这个文件就编辑此文件 console=�y1 root=/dev/mmcblk0p3 roo�stype=ext4 elevator=deadline rootwait 这行后面添加 cgroup_enable=memory cgroup_memory=1 #是在行尾添加，不是另起一行 # reboot #重启后生效 ★第4章、K8S高可用集群搭建 前面几章只装了 #资源需求，定义了容器所需要的最小资源量，便于调度，不 能小于jvm中的Xms memory: "256Mi" cpu: "200m" limits: #资源限制，定义了容器最大可以消耗的资源上限，对应jvm中 的Xmx memory: "256Mi" cpu: "200m" #1核cpu为