Hi, I can answer your last question about the virbr0.
In the past we had some issues if vm on another network also uses IP in 192.168.122.0/24. Hence we decided to disable the default network virbr0. you can find the commit in https://github.com/apache/cloudstack/pull/3227/commits -Wei On Sat, 26 Jun 2021 at 03:57, Junxuan Wu <atrocityth...@gmail.com> wrote: > Hi, > > I recently migrated my dev environment of cloudstack to a remote Google > cloud machine. I set up the KVM host and management server there. It was > working fine after the initial setup. But after a while, got an issue when > the KVM host and management server tries to connect. I checked the KVM host > cloudstack-agent log, it shows > > ``` > 2021-06-25 01:14:34,933 WARN [utils.nio.Link] (main:null) (logid:) SSL > Handshake has taken more than 30 > s to connect to: /192.168.122.1:8250. Please investigate this connection. > 2021-06-25 01:14:34,934 ERROR [utils.nio.NioClient] (main:null) (logid:) > SSL Handshake failed while conn > ecting to host: 192.168.122.1 port: 8250 > 2021-06-25 01:14:34,936 ERROR [utils.nio.NioConnection] (main:null) > (logid:) Unable to initialize the th > reads. > java.io.IOException: SSL Handshake failed while connecting to host: > 192.168.122.1 port: 8250 > at com.cloud.utils.nio.NioClient.init(NioClient.java:67) > at com.cloud.utils.nio.NioConnection.start(NioConnection.java:95) > at com.cloud.agent.Agent.start(Agent.java:283) > at com.cloud.agent.AgentShell.launchNewAgent(AgentShell.java:455) > at com.cloud.agent.AgentShell.launchAgentFromClassInfo( > AgentShell.java:422) > at com.cloud.agent.AgentShell.launchAgent(AgentShell.java:406) > at com.cloud.agent.AgentShell.start(AgentShell.java:512) > at com.cloud.agent.AgentShell.main(AgentShell.java:547) > 2021-06-25 01:14:34,940 WARN [cloud.agent.Agent] (main:null) (logid:) NIO > Connection Exception com.clo > ud.utils.exception.NioConnectionException: SSL Handshake failed while > connecting to host: 192.168.122.1 > port: 8250 > ``` > And rerun the deployDatacenter.py keeps failing > > I set up my KVM host through monkeybox. > > I also find that whenever the cloudstack-agent is started, the network > interface virbr0 will go down and disappear from ifconfig and virsh > net-list on the kvm host. The machine type I'm using for kvm host > is pc-i440fx-2.3, centos7. I've enabled nested virtualization on the google > cloud and the L1 VM I chose is debian 9 references: ( > > https://cloud.google.com/compute/docs/instances/nested-virtualization/overview > ) > > Is there a solution to disable the SSL check? Or any ideas on the strange > behavior of my network interface? > > Thanks, > Junxuan Wu >