Original: http://blog.csdn.net/gzh0222/article/details/8540604Software to achieve load balance of several software, small d look at a bit, from the performance and stability of the most bull, basically reached the F5 hardware equipment 60% performance, a few other 10% are a bit difficult.But because of the LVS bull, configuration is the most troublesome, and health testing needs to be configured Ldirector, other haproxy and nginx themselves, and the c
Software to achieve load balance of several software, small d look at a bit, from the performance and stability of the most bull, basically reached the F5 hardware equipment 60% performance, a few other 10% are a bit difficult.But because of the LVS bull, configuration is the most troublesome, and health testing needs to be configured Ldirector, other haproxy and nginx themselves, and the configuration super simple.So small d suggested that if the sit
The configuration of HAProxy is divided into five parts. Of course, these components are not mandatory and can be selected as needed. Global: The parameter is process-level, usually related to the Operating System (OS. These parameters are generally set only once. If the configuration is correct, you do not need to modify defaults again: to configure the default parameter, which
HAProxy Configuration
The
I. haproxy
HaproxyProvides high availability, Server Load balancer, and proxy Based on TCP and HTTP applications, and supports Virtual Hosts. It is a free, fast, and reliable solution.Haproxy is especially suitable for websites with extremely high loads, which usually require session persistence or layer-7 processing. Haproxy runs on the current hardware and supports tens of thousands of concurrent connecti
the content of the specified container ip,-v refers to the local configuration of the Config.ini file, and then map it into the NDB_MGMD container Config.ini configuration content is as follows [NDBD DEFAULT]noofreplicas=2datamemory=80mindexmemory=18mDatadir=/usr/local/mysql/data [NDB_MGMD DEFAULT]Datadir=/var/lib/mysql-cluster [NDB_MGMD]Nodeid=1hostname=192.166.0.2 [NDBD]nodeid=10hostname=192.166.0.10 [NDBD]nodeid=11hostname=192.166.0.11 [MYSQLD]nodeid=100hostname=192.166.0.100 [MYSQLD]Nodeid=
Implementation requirements:Using Haproxy To do load balancing, manually add or remove node server information in the configuration file, it is more troublesome. Collect the information that needs to be registered to Consul as the Haproxy node server through Registrator, and then register to Consul Key/value . Consul-template go to Consul key/value to read the information and then automatically modify the
################### #全局配置信息 ############################## #参数是进程级的, usually associated with the operating system (OS) #########GlobalMaxconn 20480 #默认最大连接数Log 127.0.0.1 local3 #[err warning Info Debug]Chroot/var/haproxy #chroot运行的路径UID #所属运行的用户uidGID #所属运行的用户组Daemon #以后台形式运行haproxyNbproc 1 #进程数量 (multiple processes can be set to improve performance)Pidfile/var/run/haproxy.pid #haproxy的pid存放路径, the user who
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
In order to compare the effects of hproxy and nginx load Balancing, respectively on the test machine (the following experiments are tested on a single machine, that is, the load machine and the back end of the machine are on a computer) do the two load balancing environment, and their respective capture packet analysis.The following are the results of the packet capture analysis under these two load balancing environments:1) haproxy experimental recor
Document directory
About SSL certificates
Others
Install haproxy by the way:
Some practical problems and solutions
Recently, Stunnel is used as a transparent proxy, and haproxy is used as an SSL solution. Stunnel is added between the user and the original reverse proxy, so that the user and Stunnel can use SSL, the real Web after Stunnel does not need to bear the HTTPS overhead.
Record the configu
Comparison of haproxy lvs nginx Load Balancing
For the software that implements load balancing, let's take a look at it in detail. In terms of performance and stability, LVS is the best, basically reaching 60% of the performance of F5 hardware equipment, and other 10% are a little difficult.
However, the configuration is also the most troublesome because of LVS, and the Health Check requires configuring Ldirector. Other
Haproxy is a highly available, load-balanced, and TCP-and HTTP-based agent software, Haproxy is completely free, with Haproxy can quickly and reliably provide a proxy solution based on TCP and HTTP applications. Haproxy applies to those Web sites that are heavily loaded, which typically require session maintenance or s
participate in the loadThe larger the weight defaults to 1.weight, the greater the weight of the load.Max_fails: The number of allowed requests failed defaults to 1. Returns the error Proxy_next_upstream module definition when the maximum number of times is exceededFail_timeout:max_fails after a failure, the time of the pause.Backup: All other non-backup machines request backup machines when down or busy. So this machine will be the lightest pressure.
Third,
Today, a colleague came to me and said that their new website ulinux.img.bkjia.com.cn could not be accessed. The Code returned from the page was a test machine. My first response was a DNS resolution problem and dig was normal, no request for the header ulinux.img.bkjia.com.cn is sent when you log on to the backend web packet capture service. I caught a lot of results on the testing machine that my colleagues said.
At this time, the haproxy rule shou
Apache, Nginx and other reverse proxy (forwarding) function, usually only for the HTTP protocol, the other Protocol is not good (note: Nginx is said to be commercial version, support TCP protocol).Haproxy can compensate for this shortcoming, haproxy support http/tcp a variety of protocols, can be used as RPC (THRIFT/GRPC/AVRO) framework front-end load balancer forwarding middleware, the following describes
"Install Haproxy under CentOS"sudo yum install HaproxyEditing a configuration file vim/etc/haproxy/haproxy.cfg#---------------------------------------------------------------------# Example configuration for a possible web Application. See the# full configuration options online.## http://haproxy.1wt.eu/download/1.4/doc/configuration.txt##------------ -----------
from:http://www.oschina.net/news/53070/haproxy-1-5-0After 4 years of unremitting efforts,HAProxy 1.5.0 finally released!Compared to version 1.4, the 1.5 version includes many new features and performance improvements:
Native SSL support for SNI/NPN/ALPN and OCSP stapling;
Support IPV6 and UNIX sockets;
Full HTTP keep-alive to better support of NTLM and improved efficiency in static farms;
http/1.1
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