> -----Original Message----- > From: kaka chen [mailto:[email protected]] > Sent: Monday, May 21, 2012 12:47 AM > To: [email protected] > Subject: Questions about cluster and HA-Mode. > > Hi All: > > Now we are testing the cloudstack 3.0.1 in clusted management server > environment, but we found on the all management servers will add host > on > the same servers. > From the source code, I found when KvmServerDiscoverer find the kvm > resource, it will ssh to the host, then executes a cloud-setup-agent > script, but the parameter -m always get from configuration table in the > db. > So I am very confused, should we change it in the global settings > every-time, or provide a virtual IP to load-balance it when agent > connect > to the management server? Thanks!
Yes, put the management servers behind a Load-balancer, such as Netscaler:) > > Another question: in the ha-mode document, it said a management server > determined that its peer has gone down and is unwinding any VM that the > peer was trying to start. How the source code implemented? I didn't > find > the agent will reconnect to other alive management server from dead > management server. Thanks! Again, it's only happened if agent connects to a load-balancer ip address, not directly connects to one mgt server, as agent will automatically re-connect to the "host" ip address, if the connection is broken. > > kaka chen > From VLIS Lab Zhejiang University.
