haproxy example

/deploy/jboss-web-cluster.sar/META-INF/# Vi/cluster/jboss4/Server/node02/deploy/jboss-web-cluster.sar/META-INF/2) use TCP to implement session replication and communication, comment out the original UDP multicast configuration file, and bind the multicast port to the last IP address of the local machine, the IP address CIDR blocks bound to two servers in multiple CIDR blocks are different. The replication process cannot communicate with each other. The problem is solved by changing to the TCP mo

#---------------------------------------------------------------------# Global settings#---------------------------------------------------------------------Global # to has these messages end upinch/var/log/Haproxy.log You'll # need to: # #1) Configure Syslog to accept network log events. This is Done# by adding the'- R'Option to the Syslogd_optionsinch # /etc/sysconfig/Syslog # #2) Configure Local2 events to go to the/var/log/Haproxy.log #file. A line like the following can is added to #/

Working with scenes Using Haproxy to carry out load balancing, for data transmission under socket, non-HTTP access load balancing.Assuming that the scenario is as follows, Terminal 1 and Terminal 2 are responsible for collecting data and then want to forward the data to the server for analysis through the load balancer.Hope:1, when two terminals are working properly, but only one server (server 1), will send all the data to this server.2, when two te

Haproxy.cfg Configuration file Contents#全局配置global log 127.0.0.1 local0 log 127.0.0.1 local1 notice #log loghost local0 info m Axconn 8192 #chroot的路径 chroot/usr/local/haproxy #运行用户和组的id uid #以守护进程 Form run Daemon #debug quiet #进程数量 based on server performance tuning Nbproc #pid路径 pidfile/var/ru n/haproxy/haproxy.pid# The default global configuration, these parameters are used to configure the Frontend,backe

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

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

GlobalLog 127.0.0.1 Local0Maxconn 32768Chroot/data/apps/haproxy/var/chrootUser HaproxyGroup HaproxyDaemonNbproc 1Pidfile/data/apps/haproxy/haproxy.pidSpread-checks 4DefaultsLog GlobalMode httpRetries 3Option RedispatchContimeout 5000Clitimeout 50000Srvtimeout 50000Frontend webtestBind *:90ACL Agent Hdr_sub (user-agent)-I MSIE 8.0Use_backend Agent_server If AgentACL 91CPM Hdr_beg (host)-I www.91cpm.comUse_ba

Haproxy configuration for Server Load balancer and haproxy configuration for Server Load balancerCommon Open-Source Software load balancers include Nginx, LVS, and Haproxy. Comparison of three major software load balancers (LVS Nginx VS Haproxy) I. LVS:1. Strong load resistance. Strong load resistance and high performa

Install the haproxy and haproxy commands and the haproxy commands Directory:1. Install haproxy2. haproxy command 1. Install haproxy CentOS comes with haproxy, but the version may be old. You can find the latest stable version of

, Twitter and Tuenti, and the Amazon Web Services system all use Haproxy. Haproxy is a popular cluster scheduling tool at present, 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

Weight Check Method: Option httpchk Option httpchk Option httpchk Option httpchk For example: Backend https_relay Mode tcp Option httpchk OPTIONS * HTTP/1.1 \ r \ nHost: \ www.ilanni.com Server apache1 192.168.1.1: 443 check port 80 9Keyword stats enable Stats enable enables statistical reports set by default during program compilation. stats enable cannot be used in frontend segments. As long as there are no other settings, they will use the fo

forwarding. This allows you to perform protocol validation instead of blindly forwarding. For example, allow SSL but deny SSH. L More load balancing algorithms: Now, Dynamic weighted rotation (dynamical Round Robin), weighted source address hash (weighted source hash), weighted URL hash and weighted parameter hash (weighted Parameter hash) has been implemented. Other algorithms such as weighted measured Response time will also be implemented soon. In

B domain name into the English site, which is almost impossible to achieve in the four-tier load balancer, And seven-tier load balancing can be based on the client access to different domain names to select the corresponding Web page for load balancing processing. Common seven-layer load balancer has haproxy, nginx and so on.Here is still a common example of TCP applications, because the load balancer to o

balancer, and seven-layer negative Load balancing can be handled according to the different Web pages of the client accessing the domain name. Common seven-tier load balancers have Haproxy, Nginx, and so on. Haproxy supports two main proxy modes: TCP is the 4 layer (mostly for mail servers, internal protocol communication servers, etc.). 　　In 4-tier mode, Haproxy