haproxy linux

The general use of load balancing is to use different technologies depending on the stage of the site's ascent. Specific application needs to be specific analysis, if it is small and medium-sized Web applications, such as the daily PV less than 10 million, with Nginx can be completely; if there are many machines, you can use DNS polling, LVS consumes more machines or more, large web sites or important services, and the server is relatively long, You can consider using LVS. One is through the ha

Ps:nginx/lvs/haproxy is currently the most widely used three load balancing software, I have been implemented in a number of projects, reference to some information, combined with some of their own experience, summed up.The general use of load balancing is to use different technologies depending on the stage of the site's ascent. Specific application needs to be specific analysis, if it is small and medium-sized Web applications, such as the daily PV

Ps:nginx/lvs/haproxy is currently the most widely used three load balancing software, I have been implemented in a number of projects, reference to some information, combined with some of their own experience, summed up.The general use of load balancing is to use different technologies depending on the stage of the site's ascent. Specific application needs to be specific analysis, if it is small and medium-sized Web applications, such as the daily PV

. Therefore, it is not required for small network services for the time being; in addition, it is similar to Nginx/LVS/HAProxy's Linux-based open-source free server load balancer software, which is implemented at the software level, so the cost is very low. Currently, the website architecture is generally reasonable and popular: the Web front-end uses Nginx/HAProxy + Keepalived as the load balancer, and the

static balance roundrobin server static 172.16.6.1: 80 check # define the backend static Content Server # rules # Round Robin balancing between the various backends # define backend app balance roundrobin server app1 172.16.6.2: 80 check # define the backend Dynamic Content Server Configure and start the service 650) This. width = 650; "style =" border-bottom: 0px; border-left: 0px; border-top: 0px; border-Right: 0px; "Title =" image "border =" 0 "alt =" image "src =" http://img1.51cto.com/atta

The general use of load balancing is to use different technologies depending on the stage of the site's ascent. Specific application needs to be specific analysis, if it is small and medium-sized Web applications, such as the daily PV less than 10 million, with Nginx can be completely; if there are many machines, you can use DNS polling, LVS consumes more machines or more, large web sites or important services, and the server is relatively long, You can consider using LVS.One is through the hard

PS: nginx/LVS/haproxy is currently the most widely used three load balancing software. I have implemented these software in multiple projects. I have referenced some materials and combined some of my experience in using it, to sum up. Generally, Server Load balancer uses different technologies at different stages as the website scale increases. Specific Application requirements have to be analyzed. For small and medium-sized web applications, such a

and find out if there are 2 ways to resolve in the configuration 1 set Minconn to a larger parameter 2 directly set to Minconn and Maxconn, completely remove the minimum limit, for the concurrency volume according to maxconn configuration. For the 2nd case, you can see in the code That is, if the two are the same size, Max returns to S->maxconn. There's no problem with that. 5 Mail exchange with Haproxy authors Since it is open source software,

Specific application needs to be specific analysis, if it is small and medium-sized Web applications, such as the daily PV less than 10 million, with Nginx can be completely; if there are many machines, you can use DNS polling, LVS consumes more machines or more, large web sites or important services, and the server is relatively long, You can consider using LVS. One is through the hardware to carry out, the common hardware has more expensive F5 and array and other commercial load balancer, its

Haproxy is currently a popular cluster scheduling tool, similar cluster scheduling tool has many, such as LVS and Nginx, compared to the best performance of LVS, but the construction of relatively complex, Nginx upstream module support cluster function, but the cluster node health Check function is not strong, Performance is not hapr oxy good. The official website of Haproxy is http://

I. Preparation 1. prepare the server to establish the MySQLCLuster system with two nodes, and use six servers to establish Haproxy43; mysqlcluster (MySQL Cluster) system node configuration description the IP address and port of the node Haproxy server load balancer (1) centos I. preparations 1. prepare the server Establish a MySQL CLuster system with two nodes and build a Haproxy + mysql cluster (MySQL CLu

. pid Ults Log global Mode http # Option httplog Option dontlognull Retries 3 Option redispatch Maxconn 8000 Contimeout 3000 Clitimeout 30000 Srvtimeout 30000 Listen mysql Bind 0.0.0.0: 3306 # proxy Port Mode tcp # mode TCP Option mysql-check # user root # mysql health check root is the mysql login Username Balance roundrobin # Scheduling Algorithm Server mysql1 1.1.1.21: 3306 check port 3306 # weight 1 check inter 1 s rise 2 fall 2 # health check plus check Server mysql2 1.1.1.22: 3306 check p

/haproxy.cfg #在default中添加如下内容 stats enable stats Hide-ve Rsion Stats Uri/ha20Configuration configuration of the clusterPCS resource Create vip2 ocf:heartbeat:IPaddr params ip= "172.16.29.12" OP monitor interval=20s timeout=20 #定义vip2资源, and defines monitoring PCs resource Create Haproxy systemd:haproxy op monitor interval=20s timeout=20 #定义haproxy资源, and defines monitoring PCs Constraint order set VIP

Tags: mysql cluster haproxyFirst, prepare1. Prepare the serverBuild a MySQL cluster system with 2 nodes and build haproxy+mysql cluster (MySQL cluster) system using 6 servers node Configuration Instructions Node The corresponding IP and port Haproxy Load Balancer (1) CentOS 6.3 1.1.1.11 Management node (1) CentOS 6.3 1.1.1.30 SQ

Objective Software load Balancing is generally implemented in two ways: operating system-based soft load implementation and soft load balancing based on third-party applications. LVS is a kind of soft load based on Linux operating system, while Haproxy is a soft load based on third party application. Haproxy compared to the use of LVS is much simpler, but like LV

option Dontlognull contimeout theClitimeout50000Srvtimeout50000frontend localnodes Bind*:1002 #HAProxy listening on port 1002 mode http default_backend Swift-Cluster Maxconn -option Forwardforbackend Swift-cluster mode http balance roundrobin #使用轮询策略option Httpchk HEAD/healthcheck http/1.0option forwardfor # when mode is "http", the forwardfor is set so that the original source IP address is saved via the x-forward-for headerServer Proxy19.115.251.23

Web schemaDescribe the purpose of each server:1, Haproxy to achieve the back-end Web server load Balancing2, keepalived to achieve the high availability of haproxy3, Apache static page access to implement4. Dynamic page access for Aoache dynamicsWhat is keepalived?Keepalived is a routing software written in C. The main goal of this project are to provide simple and robust facilities (capability) for loadbalancing and high-availability to Li Nux system

access log, you can modify the script implementation. #!/bin/bash # Author:koumm # desc: # date:2013-01-31 # version:v1.0 # Modify: # Cut Haproxy Log Mv/var/log/haproxy.log/var/log/haproxy.log.bak if [-e/var/log/haproxy.log.bak]; then Logrotate-f/etc/logrotate.conf chown nobody:nobody/var/log/haproxy.log chmod +x/var/log/haproxy.log fi sleep 1 if [-e/var/log/haproxy.log]; then rm-rf/var/log/haproxy.log.bak fi (3)

balancer in the network is divided into two types: one is carried out through hardware, common Hardware includes expensive NetScaler, F5, Radware, Array, and other commercial load balancers, and Linux-based open-source load balancing policies similar to LVS, Nginx, and HAproxy, In commercial Server Load balancer, NetScaler is more efficient than F5. For Server Load balancer, the commercial Server Load bala

permission is displayed, you can set it: 1: chmod 755 /var/run/stunnel/ -------------------------------------------------------------------------------About SSL certificates Use your own certificate: 1: openssl req -new -x509 -days 365 -nodes -out stunnel.pem -keyout stunnel.pem If the existing certificate is imported into pfx and Ca (the corresponding cafile parameter is set in the configuration file ): 1: openssl 2: // convert CER to PEM 3: openssl>x509 -in cacert.cer -out c