Symptoms:
- Unable to query vSAN health information. Check vSphere Client logs for details.
- After the upgrade of the vCenter server, Skyline Health is unable to update the status.

/var/log/vmware/vsphere-ui/logs/vsphere_client_virgo.log
=======================================================
Caused by: com.vmware.vim.vmomi.client.exception.ConnectionException: https://<VC-FQDN / IP:443/vsanHealth invocation failed with "java.net.SocketTimeoutException: Read timed out"
at com.vmware.vim.vmomi.client.common.impl.ResponseImpl.setError(ResponseImpl.java:261)
at com.vmware.vim.vmomi.client.http.impl.HttpExchangeBase.setResponseError(HttpExchangeBase.java:311)
at com.vmware.vim.vmomi.client.http.impl.HttpExchange.invokeWithinScope(HttpExchange.java:57)
at com.vmware.vim.vmomi.client.http.impl.TracingScopedRunnable.run(TracingScopedRunnable.java:24)
at com.vmware.vim.vmomi.client.http.impl.HttpExchangeBase.run(HttpExchangeBase.java:51)
at com.vmware.vim.vmomi.client.http.impl.HttpProtocolBindingBase.executeRunnable(HttpProtocolBindingBase.java:227)
at com.vmware.vim.vmomi.client.http.impl.HttpProtocolBindingImpl.send(HttpProtocolBindingImpl.java:114)
at com.vmware.vim.vmomi.client.common.impl.MethodInvocationHandlerImpl$CallExecutor.sendCall(MethodInvocationHandlerImpl.java:693)
at com.vmware.vim.vmomi.client.common.impl.MethodInvocationHandlerImpl$CallExecutor.executeCall(MethodInvocationHandlerImpl.java:674)
at com.vmware.vim.vmomi.client.common.impl.MethodInvocationHandlerImpl.completeCall(MethodInvocationHandlerImpl.java:371)
at com.vmware.vim.vmomi.client.common.impl.MethodInvocationHandlerImpl.invokeOperation(MethodInvocationHandlerImpl.java:322)
at com.vmware.vim.vmomi.client.common.impl.MethodInvocationHandlerImpl.invoke(MethodInvocationHandlerImpl.java:195)
at com.sun.proxy.$Proxy1028.queryClusterHealthSummary(Unknown Source)
at com.vmware.vsphere.client.vsan.health.VsanHealthPropertyProvider.getClusterHealthSummary(VsanHealthPropertyProvider.java:293)
at com.vmware.vsphere.client.vsan.health.VsanHealthPropertyProvider.getVsanHealthSummaryFromCache(VsanHealthPropertyProvider.java:273)
... 167 common frames omitted
/var/log/vmware/vsan-health/vmware-vsan-health-service.log
===========================================================
YYYY-MM-DDTHH:MM:SSZ ERROR vsan-mgmt[09513] [VsanClusterPrototypeImpl::RemediateCluster opID=vsan-PC-5b9713640b5d8-sq3:j2-W57] RemediateCluster failed: unidentifiable C++ except
ion
Traceback (most recent call last):
File "/build/mts/release/bora-17327517/bora/build/vcenter/release/pkg/vsan-health/stage/usr/lib/vmware-vpx/vsan-health/pyMoVsan/VsanClusterPrototypeImpl.py", line 2997, in Remedia
teCluster
File "/build/mts/release/bora-17327517/bora/build/vcenter/release/pkg/vsan-health/stage/usr/lib/vmware-vpx/vsan-health/pyMoVsan/VsanClusterPrototypeImpl.py", line 3156, in _Remedi
ateCluster
File "/build/mts/release/bora-17327517/bora/build/vcenter/release/pkg/vsanmgmt/stage/usr/lib/vmware-vpx/vsan-health/pyMoVsan/VsanVcEncryption.py", line 63, in __enter__
File "/usr/lib/vmware/site-packages/identity/vmkeystore.py", line 50, in aliases
self.enum_context = self._client.BeginEnumAliases(self._store_context, 10)
RuntimeError: unidentifiable C++ exception
/var/log/vmware/vmafdd/vmafdd.log
=======================================
YYYY-MM-DDTHH:MM:SSZ [vmafdd][ERROR] ERROR! VecsIpcBeginEnumEntries failed. Exiting with error : [5]