load average Average load: the average of the system in an operational state and an uninterruptible state within a unit time The number of processes, which is the average number of active proc
Category: Architecture
Architectural design is the product of people’s subjective mapping of elements within a structure and the relationships between elements. Architecture design is a series of related abstract patterns used to guide the design of various aspects of large software systems. The architect’s job responsibility is to transform the customer’s needs into a standardized development plan and text during the development of a software project, and to formulate the overall structure of the project, and guide the entire development team to complete the plan. Architecture design is the early stage of the software design process, which connects the requirements analysis and the design process. The main task of an architect is not to write specific software programs, but to engage in higher-level development and architecture work. He must have a good understanding of development technology, and he needs to have good organizational and management skills.
How to cluster embedded Cassandra instances?
I wrote a small application to start an embedded instance of Cassandra 1.2.
I am trying to run 3 instances of this application in Create a cluster of 3 embedded instances locally. Everyone lo
SLA Practice Summary
After SLA theory, we continue to study SLA practice. This article talks about English thinking, ShortBrain, Emotion, and you can use the picture to recognize sound, TPR Waiting for methods to assis
HeartBeat + DRBD + MFS High Available
1. Environment
System CentOS 6.4×64 minimal installation
mfs-master 192.168.3.33
mfs-slave 192.168.3.34
vip 192.168.3.35
mfs-client 192.168.3.37
Second, basic co
Card distribution in SLAM
When matching feature points of adjacent frames in visual slam, there are thousands of feature points at every turn. Mismatching is inevitable, and mismatching will inevitably affect the accuracy o
How to use Dart-Protobuf
I am considering using dart-protobuf instead of JSON in one of my projects. The problem is that the library does not provide any examples of how to use it, and the tests did not really help.
Protocol (Network Data Exchange Rule)
Protocol is a rule, standard or agreement established for data exchange in the network. Used for communication between entities in different systems. In order for two entities to communicate, they
Heartbeat deployment
#heartbeat deployment
HB1: eth0: 10.0.0.3eth1:172.16.1.3VIP:10.0.0.103HB2: eth0: 10.0.0.4eth1:172.16.1.4VIP:10.0.0.104
where eth1 is Directly connected. It is the direct heartbeat line
Kubernetes container cluster deploying ETCD cluster
Install etcd The binary package download address: https://github.com/etcd-io/etcd/releases/tag/v3.2.12
[[emailprotected] ~]# GOOGLE_URL=https://storage.googleapis.com/etcd
[[emailprotected] ~
Kubeadm deployed high available K8S clusters (V1.14.2)
1. Introduction Test environment Kubernetes version 1.14.2 high availability build document, build method is kubeadm
System version: CentOS Linux release 7.6.1810 (Core) Kernel: 4.4.1184-1.el