[ovirt-users] Creating snapshots of Windows VM result in Status Code: 500
I receive a "Status Code: 500" popup whenever I attempt to create a snapshot for
a Windows VM from the Administration Portal UI. It doesn't matter if the VM is powered
on or off. Nor the OS designation set in the UI (setting Linux or Other...).
The modal usually states: "Operation Canceled" followed by "Error while
executing action: A Request to the Server failed with the following Status Code: 500"
or "Error while executing query: null". There are at least a dozen popups, and
will continue to repeat every few seconds.
The snapshot tab in the Admin Portal UI will then have issues displaying the Active VM and
the newly created snapshot entry. If you try to examine both entries, the disk, network,
and installed applications might appear blank.
The web inspector will usually contain the following:
Fri Dec 22 09:43:07 GMT-500 2023 org.ovirt.engine.ui.frontend.Frontend
SEVERE: Failed to execute runQuery: com.google.gwt.user.client.rpc.StatusCodeException:
500 Internal Server Error The call failed on the server; see server log for details
com.google.gwt.user.client.rpc.StatusCodeException: 500 Internal Server Error The call
failed on the server; see server log for details
The engine logs will have:
File: server.log
2023-12-22 09:43:04,387-05 ERROR [io.undertow.servlet] (default task-726) Exception while
dispatching incoming RPC call: com.google.gwt.user.client.rpc.SerializationException:
Can't find the serialization policy file. This probably means that the user has an old
version of the application loaded in the browser. To solve the issue the user needs to
close the browser and open it again, so that the application is reloaded.
... snip ...
Caused by: com.google.gwt.user.client.rpc.SerializationException: Type
'org.ovirt.engine.core.common.utils.SecretValue' was not included in the set of
types which can be serialized by this SerializationPolicy or its Class object could not be
loaded. For security purposes, this type will not be serialized.: instance = ***
The same snapshot will appear fine in the VM Portal. I am able to see the network
interfaces, and disks.
No issues creating a snapshot of a Linux-based VM from either UI interfaces.
I've tried in both Firefox (115.5 ESR) and Google Chrome (latest-ish).
Any thoughts on where to look next?
Version 4.5.6-0 (git12af746179.el8) on RHEL 8.
Thank you,
Jon