Is your Ovirt panel throwing up libvirt XML-RPC error?

The libvirtd is the server-side daemon while XML-RPC is a protocol used to exchange information. And, when there are problems in their communication, it results in an error.

At Bobcares, we often receive requests to fix Libvirt errors with virtual machines as part of our Server Management Services.

Today, let’s discuss this in detail and see how our Support Engineers fix libvirt XML-RPC error.

Causes for libvirt XML-RPC error

The libvirtd is the server-side daemon component of the libvirt virtualization management system. This daemon runs on host servers and performs management tasks for virtual guest machines.

XML-RPC is a simple protocol used to exchange information between computer systems over a network.

Usually, this error occurs when the client is unable to talk to the daemon. There can be multiple reasons that make the client unable to talk to the daemon.

One of the reasons is that the daemon may not be running in the host server. Another reason can be because of an incorrect API or crashed connection instances.

Let us discuss how our Support Engineers resolve the error.

How to fix libvirt XML-RPC error

Recently one of our customers contacted us with the error libvirt XML-RPC error.

Let us discuss how our Support Engineers resolved the error.

1. libvirtd service down

The virtual machine hosted on the server was not running. Our Support Engineers logged in to the server to analyze the error.

We found that the server was rebooted recently. So on checking the libvirtd service, we found that it was down. We started the service using the command:

service libvirtd start

Later we enabled the service to start on startup using the command.

systemctl enable libvirtd

2. Bug in libvirt

Another customer contacted with the same error. On analyzing the error we found that the libvirtd service was running. A patch was also released at the time. So we updated the libvirt patch.

After the update, the error was resolved.

3. Restart libvirtd service

One of the most common fixes for the error and risky method is restarting the libvirtd service. Restarting the libvirtd service might take down other VMs in the node as well.

However, in the latest version, restarting might not affect other VM. The older version will kill VMs if we restart the libvirtd. We restart the service only if the customer approves that other VM can go offline for a while during the process.

[Stuck with librvrtd errors? We are available 24×7 to fix it for you.]

Conclusion

In short, We have discussed the causes for libvirt: XML-RPC error. Also, we have discussed how our Support Engineers start the service and update the patch to resolve the error.