How to create a Hashmap in C from scratch?
What parameters to consider and how to test how good a hashmap is? Just like the benchmark test case you need to run before you say that the hash map is
Tag: Implementation
Laravel implements custom generation file commands
Foreword The Entiy file is used in the current project, and the corresponding Entiy file must be created every time a table is added. , It is very troublesome to set variables at the same time. So
RBAC permission allocation, based on formset implementation, increased batch
Two knowledge points are needed here:
- formset
- automatically discover the URL in the project
1. What is a formset:
form component or ModelForm component in Django, used for Do a form va
Design and Implementation of EADC Sampling External Voltage Program Based on NUC442
1. Introduction to NUC442
NUC442 is a Cortex ® -M4F core processor with DSP and floating point unit, working frequency up to 84 MHz, embedded 256/512K /flash, 64K/SRAM. There are abundant per
Distributed lock based on annotation
Implementing distributed locks based on annotations There are two implementations of distributed locks: 1. Based on redis 2. Based on zookeeper
For convenience The use of distributed locks is
HeartBeat V1 + LDIRECTORD implementation of LVS high availability
Introduction to High Availability Cluster
High availability cluster, ie High Availability Cluster, its main function is to realize the automation of server failure detection and resource swit
HeartBeat V1 + LDIRECTORD implementation LVS cluster is available
Foreword
High Availability Cluster, or HA Cluster for short, refers to server cluster technology for the purpose of reducing service interruption time. It can be seen from the above that the
Authenticate dual thermal backup system with HeartBeat + Monit
First, use background
The project needs to realize the function of automatic switchover between main and standby dual heat to ensure that the system runs continuously 7*24 hours; now there is
Lamp + WordPress for HA High Availability Based on HeartBeat V2 CRM
One Heartbeat basic theory
Provide redundant system:
HA Cluster: In order to improve the system callability, combine multiple hosts to build a cluster;
Split brain, partitioned cluste
HeartBeat Realizes Nginx High Available
Introduction Heartbeat is a well-known HA project. After 3.0, Heartbeat was split into two independent projects, Heartbeat and Pacemaker. Pacemaker uses Corosync as the message layer in subsequent