haproxy architecture

HAProxy "http_request_forward_body ()" Integer Overflow Vulnerability Release date:Updated on: Affected Systems:Haproxy 1.5.xDescription:CVE (CAN) ID: CVE-2014-6269 HAProxy is a TCP/HTTP Load balancer. In versions earlier than HAProxy 1.5.4, when processing the "start of value" variable in the HTTP message structure, the "http_request_forward_body ()" functio

Comparison of load balance between LVS, Haproxy and NginxFrom the performance and stability of the most bull LVs, 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.If the

The haproxy-1.4 version agent is always used, and SSL configuration is not supported, the haproxy-1.5 version is supported, so the version is updated for testing. You can use the original Apache SSL Certificate file for simple processing on haproyx.Originally intended to use haproxy-1.4 penetration, but to back-end servers to configure SSL, so configured on the H

[[Email protected] ghn. War] # Cat index. jsp Information from 192.168.1.60 (63 IP address changed to 63 above) [[Email protected] ghn. War] # pwd /Usr/local/JBoss/Server/JBoss-ghl/deploy/ghn. War [[Email protected] bin] # Cat jboss-gh1.sh #! /Bin/bash /Usr/local/JBoss/bin/run. Sh-C JBoss-ghl-B 0.0.0.0-djboss. Service. Binding. Set = ports-01-djboss. messaging. serverpeerid = 1 [[Email protected] bin] # pwd /Usr/local/JBoss/bin ./Jboss-gh1.sh START process The JBoss configuration is

I built the Tomcat+nginx load Balancer cluster, the LVM load Balancing cluster, I'm going to get a haproxy load Balancer cluster, the three clusters I have to realize the LVS performance is really good (DR) but in the construction process is too cumbersome, Nginx is the use of upstream module cluster but the cluster node failure check function is not enough performance and LVM is a bit far away, so today to a middle person haproxy.One , build

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

Front-facing conditionsUse the Publish subscription feature of SQL Server for read-write separation and create multiple read libraries.Load balancing in this article is for multiple read libraries.Test environmentVMware 10 64-bitWindows Server R2SQL Server 2008CentOS 6.6Haproxy 1.5Virtual machine configuration(1) Virtual machine 1: Install CentOS and install Haproxy. IP is: 172.16.1.1. As a load balancer.(2) Virtual Machine 2: Install Windows Server R

HAProxy performance in high concurrency After the xunqi message gateway server is migrated from Beijing to the Wuxi data center, after a text message is sent, only about 60% of the text message status reports are received. After understanding the business logic, you can view the statistical status on the stats page of haproxy as follows: In the red circle, we can see that the maximum number of sessions

GlobalLog127.0.0.1local0 chroot/var/lib/haproxy #chroot运行路径 pidfile/var/run/haproxy.pid #haproxy Process pid file Maxconn65535#默认最大连接数, you need to consider ulimit-N Limit user haproxy group Haproxy daemon #以后台形式运行harpoxy tune.s SL. default-dh-param 2048 SSL-server- Verify none stats socket/var/lib/

This is my entire process of log analysis for haproxy in the unit.We have been in the maintenance ES cluster configuration, and did not put a set of processes including the collection end of the code, all their own once, and the online collection of logs when we generally use the logstash, but the industry many people say logstash whether it is performance and stability is not very good, The advantage of Logstash is the simple configuration, this time

$remote _addr;Proxy_set_header x-forwarded-for $proxy _add_x_forwarded_for;}}After configuration restart Nginx can browser input 192.168.1.121And then refresh the page and distribute it to different ips.650) this.width=650; "src=" http://s1.51cto.com/wyfs02/M01/87/33/wKiom1fXZxaRPZYIAABOe_lDfzQ138.png "style=" float: none; "title=" 1.png "alt=" wkiom1fxzxarpzyiaaboe_ldfzq138.png "/>650) this.width=650; "src=" http://s4.51cto.com/wyfs02/M00/87/30/wKioL1fXZxfRmJzDAABSGCESIlM938.png "style=" float

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

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

Two series:To deploy the keepalived total directory structure[[emailprotected]salt]#tree/srv/salt//srv/salt/├──base│├── init││├──audit.sls││├── dns.sls││├──env_init.sls││ ├──epel.sls││├──files│││ └──resolv.conf││├──history.sls│ │└──sysctl.sls│└──top.sls└──prod ├──cluster│├──files│ │├──haproxy-outside.cfg││ ├──haproxy-outside.cfg.bak││└── haproxy-outside-keepalive

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=

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