open source load balancer linux

I. IntroductionLinux Virtual Server (LVS) is a Virtual Server in Unix-like systems and one of the most outstanding projects contributed to open-source organizations in China. LVS exists as a front-end (ctor) in Unix-like systems and is also called a scheduler. It does not provide any services, only requests that come in through the Internet are accepted and then forwarded to the real server running in the b

] ~]# Curl 192.168.11.110rs2rs2rs2Change the polling algorithm to WRR, the weight is 2, and then execute the file, the error hint file already exists , because the /usr/local/sbin/lvs_dr.sh script file is already up eth1:0, So need to add in the script: Ifconfig eth1:0 down, then will not error;$IPV-A-t $VIP: 80-s wrr$ipv-a-T $vip: 80-r $rs 1:80-g-W 2$ipv-a-t $vip: 80-r $rs 2:80-g-W 1[[email protected] ~]# BASH/USR/LOCAL/SBIN/LVS_DR.SHSIOCADDRT: File already existsIf one of the RS is hung, it wi

for failure and then shuts down the connection service for this node.Now restart the service that starts the real Server1 node, and then observe the log output of the Pluse service:Nov 16:49:41 LVs nanny[7158]: making 192.168.60.132:80 availableThe nanny daemon automatically detects that the real Server1 service has been activated and re-makes the node available for connection within the set detection time.This article is from the "Technical Achievement Dream" blog, please be sure to keep this

Linux Server Load balancer cluster system solution-Linux Enterprise Application-Linux server application information. For details, refer to the following section. 1. Introduction to Linux virtual servers

LoadRunner again, we can see that the annoying "1024 error" is not reported in Error.log.Of course, in Nginx, the file cache is also supported, in order to cache those static files on the local nginx server, but to modify its config file configuration, as follows:VI nginx.confEnter the following at the appropriate node in the file:Location ~. *\. (GIF|JPG|JPEG|PNG|BMP|SWF|JS|HTML|HTM|CSS) $ {#指定缓存文件类型Expires 7d; #设置浏览器过期时间7天Root Data/nginx_cache/iis; #静态文件根目录目录 (must correspond to Proxy_temp_pa

LoadRunner again, we can see that the annoying "1024 error" is not reported in Error.log.Of course, in Nginx, the file cache is also supported, in order to cache those static files on the local nginx server, but to modify its config file configuration, as follows:VI nginx.confEnter the following at the appropriate node in the file:Location ~. *\. (GIF|JPG|JPEG|PNG|BMP|SWF|JS|HTML|HTM|CSS) $ {#指定缓存文件类型Expires 7d; #设置浏览器过期时间7天Root Data/nginx_cache/iis; #静态文件根目录目录 (must correspond to Proxy_temp_pa

; # Fastcgi_send_timeout 300; # Fastcgi_read_timeout 300; # fastcgi_buffer_size 64k; # fastcgi_buffers 4 64k; # fastcgi_busy_buffers_size 128k; # fastcgi_temp_file_write_size 128k; # gzip on; # Gzip_min_length 1k; # gzip_buffers 4 16k; # Gzip_http_version 1.0; # gzip_comp_level 2; # gzip_types Text/plain application/x-javascript text/css application/xml; # gzip_vary on; #limit_zone crawler $binary _remote_addr 10m; Upstream tomca

Linux load Balancer software LVS II (Installation article)2011-04-26 16:01:47Tags: LVS installation configuration Linux LVS Leisure Linux high AvailabilityOriginal works, allow reprint, please be sure to use hyperlinks in the form of the original

1. Introduction to Linux virtual servers Linux Virtual Server (LVS) is a high-availability Server Load balancer cluster system. The system can provide Load Capacity proportional to the number and performance of server nodes, effectively improving service throughput, reliabil

Build LVS Load Balancer Pre-set on Linux,centos7 Prepare five virtual machines Four sets of Centos7 One to do scheduling one to do NFS cache Two do Wed clusters One windows7 begins to be configured individually Configure Server for NFS (CENTOS7 is used to download the source code pac

information becomes as follows: ldirectord|32454] quiescent Real server:192.168.60.132:80 (192.168.60.200:80) (Weight set to 0) This log output is to set the weight of the failed node 192.168.60.132 to 0 without removing the host from the LVS routing table, at which point the connected client will become unreachable, but the new connection will not be assigned to this node. If you restart the real Server1 service, Ldirectord will be able to automatically detect that the node has been activat