automatic 3 phase load balancer

SeriesArticle: Server Load balancer: requirements of Server Load balancer Server Load balancer details Article 2: Basic concepts of Server Load

Server Load balancer principles and practices part 3 basic concepts of Server Load balancer-network Basics SeriesArticle: Server Load balancer: requirements of Server

the Node1, deliberately create errors, and then kill the Nginx processUse the NETSTAT-LTUNP command to view nginx status: It's not up.Then use service keepalived status to view the Keepalived status: Results displayed: keepalived is stoppedThen access the virtual ip:192.168.99.168 and still be able to access it normallyUse IP addr on Node0 (from) to see that the virtual IP has been taken over by the NODE0 (slave)Use the NETSTAT-LTUNP command to see if nginx exists: result existsThen kill the ng

must set the CONNECT_DATA parameter !! (Address = (Protocol = TCP) (host = IP-1) (Port = 1521 )) (Address = (Protocol = TCP) (host = IP-2) (Port = 1521 )) .... (CONNECT_DATA = (SERVICE_NAME = Service) (Failover_mode = (Type = {None| Session | select}) # function level of session reconnection. (Method = {Basic| Preconnect}) # is the connection established during failover or in advance? (Retries = 5) # Number of Retries (Delay = 1) # retry Delay ) ) Three Oracle client

, there are also real-time static content, the Mop-like hodgedge and Netease community use such strategies.Category 3: The content changes in real time and is very personalized. For example, for mailbox applications, the content provided by such services cannot be static and can only be optimized through regional deployment and load balancing.For the vendors that provide cdn services, static content cdn is

2.3 wget and curlWget and curl are two common file transfer tool software based on command line. These two tools are similar but different. Both tools can download content through FTP, HTTP, or HTTPS. With these tools, we can simulate the client to send various TCP requests to Server Load balancer, to study how Server Load ba