Oracle VM Manager: How to check and troubleshoot communication issues between OVM Manager and OVS Dom0 nodes

Following are steps to check and troubleshoot communication issues between OVM Manager and OVS Dom0 nodes.

1) Run below command on Host running OVM Manager.

netstat -an | grep 7002

When running above command you should see TCP WAIT or LISTEN connections to all Dom0 Nodes IPs (using which they were discovered in OVMM).

2) Run below command on Dom0 nodes and check if the ovs-agent is up and running.

service ovs-agent status

3) Run below command on Dom0 nodes to check if OVM Manager URL is shown.

ovs-agent-db dump_db server

In above command output check for manager_core_api_url and see if you see https URL for OVM Manager URL and 7002 port. URL will be like "'https://XXXX:YYYY@:7002/ovm/core/OVMManagerCoreServlet'"

4) Run below tcpdump command on Dom0 node and check if the communication is happening between Dom0 compute node and OVM Manager. In below command replace the IP with the IP of OVM Manager.

tcpdump -i any host <IP> and port 7002 

5) Do Ping tests between the Dom0 Nodes and OVM Manager host using over IPs (used to discover OVS nodes from OVMM) both the ways.

 

Products to which Article Applies

Oracle VM Manager, OVS - All versions.

 

Article Author: Tarun Boyella