server heartbeat monitor

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Use pt-heartbeat to monitor master-slave replication latency

solely on the show slave status provided by MySQL itself. Pt-heartbeat is a good choice for master-slave replication latency monitoring. This article describes the latency monitoring in the case of master-slave replication and provides corresponding examples. Pt-heartbeat is one of the percona-toolkit. Therefore, you need to install percona-toolkit before use. For details, see percona-toolkit installation

Using pt-heartbeat to monitor the replication latency of MySQL, pt-heartbeatmysql

Using pt-heartbeat to monitor the replication latency of MySQL, pt-heartbeatmysql Pt-heartbeat During database master-slave replication, whether the replication status and data delay are normal is a critical indicator. How can we monitor it? Pt-heartbeat is a centralized too

How does Android heartbeat packet Heartbeat connect to Android and server long connections? The principle of Push message

use Alarmmanager to implement the heartbeat feature to make it truly long-connected. on the server side of the implementation:on the server side, can be implemented in many languages, such as C/c++,java,erlang and so on, such as our domestic relatively good aurora push (C development), OpenFire (Java development) and so on. recently I saw the introduction and pr

Keepalived (monitor Heartbeat)

Keepalived is a highly available Web service solution based on the VRRP protocol, which improves the high availability of your Web site. When a Web server has at least two or more servers running keepalived, and the primary server is down, the backup server takes over the virtual IP and does not stop service because the primary

High-availability Middleware on Linux, Part 1: heartbeat and Apache Web Server

configuration, all nodes execute similar tasks. When a node fails, the key tasks can be taken over. InOne-side (sided) takeoverDuring configuration, the backup node executes some additional, non-critical, and unmovable tasks. InMutual takeover)In configuration, all nodes perform high availability (movable) tasks. This series of articles does not introduce the takeover configuration. When creating a high-availability cluster, you must plan some key items: The hard disk used to store data must

Heartbeat implementing a Web server for high availability

-clusterha-cluster 694/udp # Heartbeat Ha-clusterExtensions: who manages port definitions for TCP/UDP public servicesIANA refers to the organization (Internet Assigned Numbers Authority), the Internet number assignment. Responsible for IP address assignment planning and port definition for TCP/UDP public services.All IANA tasks can be broadly divided into three types:First, the domain name. The IANA manages DNS domain name roots and. int,.arpa domain

Heartbeat + LVS build a high-availability server Load balancer Cluster

Heartbeat + LVS build a high-availability server Load balancer Cluster 1. Introduction to heartbeat: The Heartbeat project is an integral part of the Linux-HA project, which implements a high-availability cluster system. Heartbeat service and cluster communication are two ke

Heartbeat-based high-availability server configuration in Linux

As the data center only has one reverse proxy server to support all its services, all backend services are unavailable considering the downtime of its servers, this will lead to unnecessary accidents because the data center has only one reverse proxy server to support all its services. considering that its servers are down, all the backend services are unavailable, therefore, unnecessary accidents may occur

GJM: [C # High-performance server] High-Performance Socket server with port and heartbeat [reprinted],

GJM: [C # High-performance server] High-Performance Socket server with port and heartbeat [reprinted], Thank you for reading this article. If you like it and can use it, please let me recommend it! Your spiritual support is a strong motivation for bloggers to write and repost collections. Reprinted! Copyright Disclaimer: This article was

[GO] socket heartbeat Packet exception detection C language implementation, server and client code case

Reprinted from: zxh2075 's ColumnIn the socket heartbeat mechanism, the heartbeat packet can be sent to the client by the server, or it can be sent to the server by the client, although the cost may be larger compared to the former. This article realizes that the client sends a hea

Automatic switchover after Server service failure using heartbeat and scripts

Noun Explanation:Cluster (cluster): All server groups that participate in heartbeat detection and collectively take over unified tasksHost (primary): Specifies the server that takes over the VIP and provides services when configuredStandby (Backup): Detects the host heartbeat when configured, takes over the VIP and ser

Configure the NTP server and Heartbeat V1 for httpd High Availability

Configure the NTP server and Heartbeat V1 for httpd High Availability Establishment and use of NTP servers In high-availability clusters, the time requirements for each node are strict. Therefore, we need to configure an NTP server to implement the time synchronization of highly available clusters. Point other node time to this ntp and create an NTP

When the server heartbeat is triggered, it is found that the timer is not executed after a period of time (solved)

In Socket network development recently, the first problem that must be solved first is the stability of communication between the server and the client. The most basic problem can be achieved with great care. I am using a two-way heartbeat mechanism. The general process is as follows: 1. The client sends a heartbeat packet to the

Two strategies for implementing the heartbeat mechanism on the server

Most CS applications require a heartbeat mechanism. The heartbeat mechanism is generally implemented on both the server and client, and the two have the same implementation principle. The client does not care about performance. If the application is TCP-based, you can simply achieve heartbeat through so_keepalive. Wh

[Golang] write from zero to socket Server (3): Processing strategy for long and short connections (analog heartbeat)

connection to set a timeout can be done, and in the Golang net package, there is no long-connected function, So we need to design and implement our own processing strategy for long connections. For Socke long connections, it is common practice to design a communication mechanism between the server and the socket, and when there is no information interaction between the two, the two parties will periodically send packets (heartbeats) to maintain the c

Using php to write sokket to connect to a third-party server, we need to keep the connection going and send a heartbeat to the other side every three minutes. php is a single thread. how can this be achieved?

The business process is like this. our php Server uses socket to connect to the other server, and the other server will send messages to our php server from time to time. Therefore, we need to read the php server all the time, at the same time, you also need to send a

Write Sokket with PHP to connect a third-party server, to keep the connection, every three minutes to each other to send a heartbeat, PHP is single-threaded, how can this be achieved?

Business process is like this, we PHP server with the socket connection to the other server, the other server will send a message to our PHP server, so we need to read,read PHP always need to send a heartbeat every three minutes to each other, when PHP has been read, When th

VCenter Server Heartbeat

1. IntroductionVcenter Server heartbeat provides mission-critical high availability for VMware vcenter Server, protecting your virtual infrastructure from hardware, network, configuration, and more, Windows-based services for VCenter The server configuration provides high-availability protection without the need for de

Haproxy+heartbeat Two scenarios (note, standby server VIP, Normal Haproxy startup method)

Main Standby modeProgramme IThat is also where the VIP is, Haproxy is where to start the main standby mode.[Email protected] ~]# Cat/etc/ha.d/haresources#gao services#10.0.0.103 Www.lvnian.orgMASTER ipaddr::10.0.0.103/24/ Eth0 Haproxyd [[email protected] ~]#Note the point:# #haproxy If you manage heartbeat, then the Haproxy script above must be/etc/init.d/directory or early/etc/ha.d/rresource.d/directoryLet different VIPs provide haproxy services on d

Whether the heartbeat detection Server is a normal open-source project

Whether the heartbeat detection Server is a normal open-source project Is it because the server is down and someone calls you to discover a problem with the server? For servers that cannot be on duty 24 hours a day. If you are a developer or O M engineer, but want to know whether the

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