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=
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
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 provides high availability, load balancing, and proxies based on TCP and HTTP applications to support virtual hosts, a free, fast, and reliable solution. Haproxy is especially useful for Web sites that are heavily loaded, which typically require session maintenance or seven-tier processing. Haproxy is running on the current hardware and can support tens o
, 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
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
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
This was done before Percona XtraDB Cluster (Configuration See linkhttp://hans925.blog.51cto.com/542170/1607157)Now with Haproxy to Percona XtraDB cluster do load balancing, machine or those two machines, (originally do load balancing three machines, but personal notebook run two virtual machine on a bit card, so it used two). The haproxy was installed on the first Percona.HaproxyOs:ubuntu 14.04 Server ip:1
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