Mind of Bigyellow

https://youtu.be/iuYlGRnC7J8 Strategy -->  from Why to how,  must be a coherent inside.  Plan doen't have this kind of coherent. 

https://youtu.be/-W4_I4nX2uI *  Don't label the feeling, and behavior,  * Try to focus what the person really try to say.  give a chance to let them to say directly ,  not focus on their behaviour * Do not take bait * Get the support from the team.  

  Oracle MySql     Sql Server  Explaination Redo Log      transaction log / Redo Log             Transaction log                  all changes that happened to your data. Alert Log      error log find various messages about your database Archive Log         Binary Log Archived REDO Log          

https://www.cncf.io/blog/2022/07/08/the-16-point-checklist-for-gitops-success/   We have adopted Kubernetes for container and infrastructure management :  -- Done  We have documented a clear workflow between Application Development teams and the Platform team :  -- Not ready We have trained teams on the new workflows and tooling :   --  Not ready We have identified which changes can be automatically deployed to production, and which require a manual pull request :   --  Not ready We have declared everything in Git (this includes applications, infrastructure, networking, and configuration) :   --  Part Ready We have decided on an initial structure for our Git repositories   --   Part Ready We have selected the appropriate tooling that makes up our GitOps pipeline (Flux, Helm, Flagger, etc) :   --  Done  We have connected GitOps toolings like Flux, Helm, and Kustomize to our Git repositories :   --   Part Ready We have configured Git webhook for build triggers :    --   Part Ready We ha

https://mp.weixin.qq.com/s/FUQmLZmj35bPu_ApmfY3mw 拆分系统 ->  全链路压力测试，评估反馈 ->   搭建模型，定义资源浪费标准 ->  分时混部在线业务与临时业务错峰使用 ->  使用弹性伸缩

https://mp.weixin.qq.com/s/WCIV5gCw2YkU2hi1m-bQaw SMP 主要特征是共享，系统中所有资源 (CPU 、内存、 I/O 等 ) 都是共享的。也正是由于这种特征，导致了SMP 服务器的主要问题，那就是它的扩展能力非常有限。 而最受限制的则是内存。由于每个 CPU 必须通过相同的内存总线访问相同的内存资源，因此随着 CPU 数量的增加，内存访问冲突将迅速增加，最终会造成 CPU 资源的浪费，使 CPU 性能的有效性大大降低。实验证明， SMP 服务器 CPU 利用率最好的情况是 2 至 4 个 CPU 。 NUMA 每个 CPU 可以访问整个系统的内存  访问本地内存的速度将远远高于访问远地内存  由于访问远地内存的延时远远超过本地内存，因此当 CPU 数量增加时，系统性能无法线性增加。 SWAP问题，即：NUMA0内存已经用完都开始用SWAP空间了，NUMA1还有很大的内存free。 MPP(Massive Parallel Processing) 由多个 SMP 服务器 ( 每个 SMP 服务器称节点 ) 通过节点互联网络连接而成，每个节点只访问自己的本地资源 ( 内存、存储等 ) ，是一种完全无共享 (Share Nothing) 结构，因而扩展能力最好，理论上其扩展无限制 MPP 服务器需要一种复杂的机制来调度和平衡各个节点的负载和并行处理过程

  https://mp.weixin.qq.com/s/kguBo1LJ00PVtTHrAma5YA Zero Trust Security Service Edge --   单一厂商的SSE平台访问网络、云服务和专用应用的策略。 公司和第三方进行商业业务的时候，必须要把供应商的安全能力作为一项决定因素