VCF on VxRail: SDDC UI is not accessible

Summary: SDDC UI is not working and opening with an error:- "Server failed to start. Failed to init PSC and/or Postgres. Check the SDDC Manager UI Server logs for more details" Upon checking it was found that the replication between management VC and workload domain VC were fixed along with the certificate renewal for EAM service.  However, the SDDC UI is still not accessible. ...

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Symptoms

 From oprationmanager.log

2025-02-05T18:12:23.772+0000 ERROR [common,67a3a67ee72d9729d20cf8098284c1f8,6979] [c.v.v.i.sync.utils.VcSyncManagerUtil,cs-exec-7] Error connecting to vCenter , with exception {}
     java.lang.RuntimeException: Received null updateSet from Vcenter framework should retry monitoring Hostname-8

     VError: PSC Initilization attempt "9" failed: Failed to initiate PSC: Primary psc init failed and failover psc init also failed: Unable to retrieve iDP Metadata: 500
     at Object.initializationPscError (/opt/vmware/vcf/sddc-manager-ui-app/server/src/errors/VCFError.js:100:5)
     at attemptPSCInitWithRetry (/opt/vmware/vcf/sddc-manager-ui-app/server/src/services/pscUtils.js:108:46)

      Unable to create jsch CLI session ...
       com.jcraft.jsch.JSchException: reject HostKey: [Node_FQDN_or_IP] ...
       at com.jcraft.jsch.Session.checkHost(Session.java:789)
        at com.jcraft.jsch.Session.connect(Session.java:345)

Cause

Host Keys can be changed on a node for various reasons, including but not limited to:

  • Restore from a backup.
  • Manual rebuild
  • Manual intervention to change the Host Key

As a result of this change key, SDDC Manager is unable to SSH into one or more nodes in question to run through the attempted workflow due to a mismatch in what it expects the Host key to be vs what is being presented by the node.

Resolution

Use "fix_known_hosts.sh" script to fix the host key issue.

How to update the SSH host keys on the SDDC Manager.

https://knowledge.broadcom.com/external/article/316028 [knowledge.broadcom.com]

Affected Products

VxRail G Series Nodes, VxRail E Series Nodes, VxRail E560 VCF, VxRail E560F VCF, VxRail E560N VCF, VxRail G560 VCF, VxRail G560F VCF, VxRail P Series Nodes, VxRail P570 VCF, VxRail P570F VCF

Products

VxRail P580N VCF, VxRail S Series Nodes, VxRail S570 VCF, VxRail V Series Nodes, VxRail V570 VCF, VxRail V570F VCF
Article Properties
Article Number: 000284842
Article Type: Solution
Last Modified: 18 Mar 2025
Version:  1
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