There is an interesting which I faced in my client environment. There are two physical appliance in the environment. One of them is new model and the other one is older. I followed the standard procedure to make them cluster.
After these configurations, I try to add an appliance from GUI but error message popped out.
"Stack trace: com.scur.k.shared.exceptions.KClientServerException: Node "74007980-BB40-11E9-906E-0012795D9712" reports STATUS_ERROR_CONNECT:
co_distribute_add_cluster_node: ssl failure on message socket 15 while sending request - last action: ssl connect"
To be sure about services I checked mwg-coordinator services in both appliance and they were up and running. Then I try telnet between each other and it was successful.
I captured the trafic for 12346 port in the appliance and show that connection is dropped after server hello. TLS version was 1.3 therefore I could not see certificate details.
Let's assume one the appliance is A and the other one is B.
To check certificate details I used openssl s_client. When I started to communication from appliance A to B with openssl tool, communication is hung at connected state. When I try to same thing in vice versa, results was same. But, when I try to start communication from Appliance A to A, communication was successfull. Then, I decided to use other appliance except from these and it completed handshake successfully with both appliances.
After these I decided to start handshake from appliance A to B with TLS 1.1 with openssl but these time service did not like TLS version.
Do you have any idea what can cause this behaviour?
Solved! Go to Solution.
the TLS handshake on your screenshot is incomplete.
Do both appliance have the same MWG version? Upgrade them to the latest version and try again.
They have same version. When I started a handshake from other linux systems, it is completed successfullly. But when I try to start it from one appliance to another. It stack just like this.
try to restart mwg-coordinator and also check mwg-coordinator.errors.log
yeah, I see, a ssl error, it correlates with the openssl output..
Try to reupload a cluster cert to both appliances and check it using UI.
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