HA (high available) , Also known as dual-system hot backup, used for critical business. Simply understand itYes, there are two machines A And B. Normally, A provides services, and B is on standby a
Category: Monitoring
Application monitoring refers to real-time monitoring, analysis, and alarming of application performance, traffic, bandwidth occupancy, popularity, user behavior, user source channels, and user client environment from the application layer. Application monitoring has the advantages of small impact on the original system and simple implementation.
Use Erlang heart
How to use your heart to keep the application alive?
Suppose I have an application X, if I just call something similar, it will be monitored:
erl -boot X- heart -env HEART_BEAT_TIMEOUT
The Keepalive mechanism of the HeartBeat Heartbeat and TCP Protocol is not specified
Many application layer protocols have a HeartBeat mechanism, usually the client sends to the server every short period of time Send a data packet to inform the server that it is still online and tr
PT-HeartBeat Monitor Mysql Synchronization Delay
pt-heartbeat monitors mysql master-slave synchronization delay:
Install percona toolkit (pt-heartbeat is a subcommand of the software):
http://repo .percona.com/release/6/RPMS/x86_64/pe
Manage HeartBeat using CRM
Heartbeat is a highly available cluster system based on Linux open source and widely used. It mainly includes two highly available cluster components, heartbeat service and resource takeover. The r
Test HeartBeat
18.8 Test Heartbeat
How to know whether the HA cluster is working normally, simulation environment test is a good method. Before putting the Heartbeat high-availability cluster in the product
Configure HeartBeat with HB_GUI
In the past few days, I spent a lot of space explaining the configuration of heartbeat v1 and v2. It is also mentioned that the v2 style format is based on CRM (Cluster Resource Management) Program
How to queue a heartbeat to get faster when an enemy is near
IEnumerator heartbeat_function(){ heartbeatsound.play(); delay = vector3.distance(player_position, slender_man_position); //delay = delay / 2 to make it happen twice as much //delay = delay * 2 to
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
HeartBeat theory introduction
Heartbeat theory introduction
1. Heartbeat function
Through heartbeat, resources (IP, program services and other resources ) Quickly transfer from a failed computer to another normally