haproxy appliance

Redis Redundancy Scheme (keepalived, HAProxy, Redis Sentinel) If you're looking for a redis redundancy solution, I've found the following scenario, and I think I can try this out. "highly Available Redis Cluster | Simplicity is the keynote of all true elegance" Initially, it was considered to be built using pacemaker, because the Redis author launched Sentinel's scenario, so this article uses the Sentinel scenario. Software list and

Label: TarZXVF haproxy-1.4. +.Tar. GZ CD Haproxy-1.4. + uname-R Vim/etc/haproxy.cfg Global #日志log127.0.0.1local0 Maxconn4096 chroot/tmp uid0GID0Daemon Nbproc2Pidfile Logs/haproxy.pid #debug #quiet defaults log127.0.0.1local3 mode http #option httplog #option httpclose option Dontlognull #option forwardfor option Redispatch retries2Maxconn -Contimeout theClitimeout30000Srvtimeout30000Balance Roundrob

The current development trend of the website for the use of network load balancing is as the scale of the website increases according to different stages to use different technologies:One is through hardware. Common Hardware includes expensive NetScaler, F5, radware, array, and other commercial load balancers, it has the advantage of a professional maintenance team to maintain these services. The disadvantage is that the cost is too large. Therefore, it is not required for small network services

Recently, the company had a project where users worried that a single machine could not afford the most users, and they required to use the application cluster. We designed the application cluster architecture based on the application situation. The architecture diagram is as follows: 650) this. width = 650; "style =" border-bottom: 0px; border-left: 0px; margin: 0px; border-top: 0px; border-right: 0px "title =" logical architecture "border =" 0 "alt =" logical architecture "src =" http://www.bk

1. Experimental Topology as follows, this is done with NGINX Port-based virtual host, easy to test later 650) this.width=650; "src=" http://s3.51cto.com/wyfs02/M01/54/6B/wKioL1SBuUmgED6_AAEIceBESQw873.jpg "title=" t1.jpg "alt=" wkiol1sbuumged6_aaeicebesqw873.jpg "/> 2. Preparation before installationHaproxy Domestic Download You knowkeepalived www.keepalive.orgSync time#ntpdate pool.ntp.org3.haproxy installation ( same as Main and standby node insta

Because the company needs to be on-line HTTPS, so for HTTPS need to do stress testing, using the same encryption strength of the certificate, respectively, Haproxy and nginx to do stress testing, and then CPU usage comparison:The following are 1000 request stress tests for the same URL and background server:First time Haproxy 1000 times HTTPS pressure test650) this.width=650; "src=" Http://s2.51cto.com/wyfs

Description: The following references the contents of the sixth chapter of "Building a highly available Linux server" Fuqin.It is relatively simple to build a high-availability environment for load balancing, mainly to understand the principles. This article describes the pros and cons of three load balancers so that they can be used in real-world production applications by demand.At present, the online environment in the application of more load balancer hardware has F5 big-IP, software has Lvs

Next blog Address http://lee90.blog.51cto.com/10414478/1825478In the previous blog post, we used only one slave node.in the actual production environment, we must have multiple slave The node is responsible for reading the database. Let's say we have a well-configured slave , IP to be 192.168.2.15 . So now the situation is:Master1 : 192.168.2.13Master2 : 192.168.2.14VIP : 192.168.2.100Slave1 : 192.168.2.11Slave2 : 192.168.2.15Web Server: 192.168.2.11Haproxy the installation configurationdemo us

Haproxy Proxy to build a highly available Web clusterStatus code for HTTP protocol response:200:ok301: Redirect404:not found403:forbidden501:internal ErrorHAProxy:1, it's working principle is proxy agent. After the client sends the request to Haproxy, Haproxy sends the request to the Web server for the user, the Web server responds to the

The company recently had a project because users are concerned that a single machine can not afford to use the maximum number of users, the application cluster requirements. We designed the application cluster architecture according to the application situation. The architecture diagram is as follows: Features for deploying application clusters: 1. Front-end Agent load balancing Because the user environment infrastructure uses the virtualization cluster platform, the server uses the virtua

NOTE: For the following content, refer to Chapter 6 of "building a high-availability Linux Server" of fuqin liquor. It is relatively simple to set up a high-availability server Load balancer environment, mainly to understand the principle. This article describes the advantages and disadvantages of the three load balancers so that they can be selected as needed in actual production applications. Currently, there are F5 BIG-IP, LVS, nginx and haproxy, a

, often problems, rather than simple and stable. In the enterprise, more than 90% of the failure, from the demand change. It could be a bug, a human error, a schema design problem, and so on. Front-end load balancing equipment is the most important, in the software selection must be fully considered, to meet the premise of business, as far as possible to reduce complexity, improve serviceability.Project four: Implement a high-availability architecture based on

Three major software load balancer comparisons (LVS, Nginx, HAproxy)(Information from the network, made part of the supplementary instructions)LVS:1. Strong anti-load capability, high performance, can reach F5 60%, low memory and CPU resource consumption2. Work in the Network 4 layer, through the VRRP protocol (for Proxy only), the specific traffic is handled by the Linux kernel, so there is no traffic generated.3. Stable, high reliability, self-perfe

It is relatively simple to build a load-balanced high availability environment, mainly to understand the principle. This article describes the advantages and disadvantages of three load balancers, so as to be in the actual production applications, according to the requirements of choice.At present, the online environment in the application of more load Balancer hardware F5 big-ip, software has Lvs,nginx and haproxy, high availability of software heart

we typically run into a business scenario like this:b host and C database in the same intranet, a host cannot directly access the C database, we can build the agent on the B host let a access C database, we use Haproxy to do this thingCENTOS7 EnvironmentMySQL Self-installingHaproxy installation Configuration yum install-y haproxy Configuration haproxy:Vim/etc/haproxy