free load balancer linux

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

1 overviewIn order to guarantee the stable operation of the bastion host-instruction channel, it is necessary to implement the load balance of instruction channel, and study to determine the use of LVS software.LVS is the abbreviation for Linux virtual server, that is, the Linux server, the official site is: www.linuxvirtualserver.org2 LVS ArchitectureLVS set up

; # 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

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

0.0 112680 976 pts/0 R+ 18:25 0:00 grep --color=auto keepAlso need to be performed on two RSsh /usr/local/sbin/lvs_dr_rs.sh4. TestingTest Method 1:Enter the VIP in the browser 192.168.242.110 and then deliberately stop an RS nginx service, then refresh the browser to see the results.Test Method 2:In the scheduler, execute the relevant command to view the number of connections:[[emailprotected] ~]# ipvsadm -lnIP Virtual Server version 1.2.1 (size=4096)Prot LocalAddress:Port Scheduler F

. Instead of executing the LVS script we configured above, because Ldirectord will automatically call Ipvsadm to create the LVS routing table, we have described above using the IPVSADM command line to configure LVS in order to give readers a deeper understanding of IPVSADM implementation details and implementation mechanisms.If you are configuring LVS through the Piranha tool, you do not need to use the Ldirectord,piranha tool for the system process is pluse, this process will also automatically

Article Title: Original: Linux server load balancer technology based on LVS. Linux is a technology channel of the IT lab in China. Includes basic categories such as desktop applications, Linux system management, kernel research, embedded systems, and open source. Implementat

Haproxy + Apache for Linux Server Load balancer Software Haproxy provides high availability, Server Load balancer, and reverse proxy Based on TCP and HTTP applications, especially for websites with extremely high loads that usually require session persistence or layer-7 proc

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

First, start the LVS Cluster serviceLVS load balancing management and use in two ways, one is the Ipvsadm command line footstep and Ldirectord monitoring mode, one is the Piranha tool for management and use. The following are described separately.1, using Ipvsadm command line footsteps and Ldirectord monitoring method to manage LVSAfter everything has been configured, start the LVS Cluster service by performing the following operations in turn.First,

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 source of the article, autho

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

1. Introduction to Linux virtual serversLinux 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, reliability, redundancy, adaptability, and high perfor

] ~]# 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

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 package online, but in order to do the experimen

Linux Server Load balancer TOP Command-display kernel chip Cache Information The Linux kernel needs to allocate memory for temporary objects such as tasks, device structures, and nodes. The cache distributor manages the cache of these types of objects. The cache distributor is deployed in the modern

.[Email protected] ~]# ipvsadm-a-t 192.168.60.200:80-r 192.168.60.132:80–g[Email protected] ~]# ipvsadm-a-t 192.168.60.200:80-r 192.168.60.144:80–gThe above two settings indicate that two new real server records are added to the virtual server 192.168.60.200, two real server IPs are 192.168.60.132 and 192.168, respectively. 60.144, Parameter "-G" Specifies that the operating mode of the virtual server is the direct route mode, which is the DR mode.After this is set up, when the user accesses the

In Linux Streaming Server Load balancer, Layer7 identifies data streams (Connection Tracking ).1. the nf_conntrack that supports Layer7 does not really need to be destroyed. After that, you will feel that you need to change "data streams based on quintuple" to "data streams with fixed offsets based on application layer protocols, the sooner the better! Therefore,