After vCSA is upgraded to 6.7U3p, the VCHA configuration fails across clusters (the primary node, standby node, and witness node are located in different clusters).
It was normal to configure the VCHA between three different clusters; The upgrade to 6.7U3p will fail with the following error message;
There are seven clusters in total. After the upgrade, you can configure VCHA only between the specified two clusters. If you add other clusters, the same error message is displayed.
Have you ever encountered similar problems and referred to KB
Telnet port 8281 is normal, but port 5432 is abnormal. The test results of 7 clusters are consistent.
Hope to get your help，thanks!