The web interface could be better. It's not very difficult to use, but there's room for enhancement. Another area for improvement is the integration with hardware to manage the lower layer of the network stack. Other than that, it's a quite mature product.
I've found OpenNebula upgrades to be more complex than those of some of the competitors and the support to be mediocre. I would also like to see more and better ancillary tools related to OpenNebula, for example, more robust tools for backups, user support, etc. The support knows their software stack reasonably well. However, OpenNebula depends on so many open-source projects that they lack expertise. As with all enterprise software licensing, the pricing is not intuitive and must be negotiated; grandfathered contracts are better than anything offered today.
OpenNebula's templates are weak, and it could do something to make template creation a lot easier to use. The solution has a template for every single VM you create, which is not clever. You should be able to use a template for many different virtual machines. There are no payment gateways in OpenNebula.
Products Manager at a tech services company with 501-1,000 employees
User
Oct 3, 2023
The front-facing API can be improved to support lots of requests when the platform is huge with lots of virtual resources. The current design requires to extraction of lots of data so it leads to some latencies for some requests. Adding more customization layers to Sunstone can also speed up the way we can expose it to our customers. Even if some huge improvement has been made, we cannot still open it to be used directly and autonomously by our customers. We need to dig more into the last releases to see what can be improved.
Head - Operations & Sales at Computer Port IT Solutions
Real User
Dec 2, 2022
It's very tough, depending on the requirements. There are small things that are hard. For example, making sure that it is going to be installable on public clouds so that you can have different drones on public clouds and different public clouds, and making sure that everything is going to work seamlessly whether on-premises or on the cloud. Right now, on public clouds, you cannot actually install OpenNebula.
System Architect at a tech services company with 51-200 employees
Real User
Nov 2, 2022
The protocol for clusterization is rough and doesn't work well. We stopped using that feature because we had problems. It's not always easy to find answers on the forums if you're using the open source product.
I would like to see OpenNebula add more integration with REST API. XML-RPC API is good, but it becomes a pain to form a resting output. The pathway and prediction and all those things can be tricky. It should have a simple REST API like most other tools. It's the industry standard format. An XML-RPC API gives you an XML document that you have to convert and then do something with that. REST API endpoint provides outputs in a JSON document. I would also like to see support for user data or heat templates, which OpenStack offers, but OpenNebula doesn't have this yet.
Head - Operations & Sales at Computer Port IT Solutions
Real User
Jan 26, 2021
With a detailed billing module, this can be used as a complete public cloud implementation, and we are waiting to see that module from OpenNebula. Most of the competitors are offering some sort of billing software to transform their installation to work as a small-sized public cloud, but those offerings from OpenNebula are still missing. With the addition of this module, it will bring completeness to the overall offerings. We hope that OpenNebula listens to this and bring quickly the module.
@Ravi Kumar Tenneti Please check out Stack Console ( www.stackconsole.io ) it should solve all your problems :) It is a Next-Gen billing solution for OpenNebula using which you can sell public cloud like a pro.
The structure of the documentation is very messy. You can't find anything you want. When you search for features you are faced with many different topics and they don't have any connection to each other. Compared to the documentation for VMware, it is really simple and messy. You find many topics that are not related to each other and you have to read all of the documents from beginning to end if you want to know how to set something up. For example, if you want to set up Kubernetes then you should be able to search for the top and learn how to do it. However, with OpenNebula, it is too difficult to do that. They have been saying for the past two and a half years that they would develop a feature to hot-add RAM and CPU, but it does not work. They keep postponing it to the next version and we are impatiently waiting for it. When the ability to hot-add or remove RAM and CPU inside the virtual machine is working, it will be very good. The community has some weaknesses. For example, the answers are sometimes very short and contain no detail, like "Working on it", without answering with specifics. Another weakness is that you have to develop a third-party portal from outside and connect using the NSX API directly from it.
They should add more features like object storage. They should improve some management feature for the storage, for example, they should put third party staff. The integration features should also be improved but I believe they are working on it. They should add HDM and HDS features.
OpenNebula provides the most simple but feature-rich and flexible solution for the comprehensive management of virtualized data centers to enable private, public and hybrid IaaS clouds. OpenNebula interoperability makes cloud an evolution by leveraging existing IT assets, protecting your investments, and avoiding vendor lock-in.
OpenNebula is a turnkey enterprise-ready solution that includes all the features needed to provide an on-premises (private) cloud offering, and to offer public...
The web interface could be better. It's not very difficult to use, but there's room for enhancement. Another area for improvement is the integration with hardware to manage the lower layer of the network stack. Other than that, it's a quite mature product.
I've found OpenNebula upgrades to be more complex than those of some of the competitors and the support to be mediocre. I would also like to see more and better ancillary tools related to OpenNebula, for example, more robust tools for backups, user support, etc. The support knows their software stack reasonably well. However, OpenNebula depends on so many open-source projects that they lack expertise. As with all enterprise software licensing, the pricing is not intuitive and must be negotiated; grandfathered contracts are better than anything offered today.
OpenNebula's templates are weak, and it could do something to make template creation a lot easier to use. The solution has a template for every single VM you create, which is not clever. You should be able to use a template for many different virtual machines. There are no payment gateways in OpenNebula.
The front-facing API can be improved to support lots of requests when the platform is huge with lots of virtual resources. The current design requires to extraction of lots of data so it leads to some latencies for some requests. Adding more customization layers to Sunstone can also speed up the way we can expose it to our customers. Even if some huge improvement has been made, we cannot still open it to be used directly and autonomously by our customers. We need to dig more into the last releases to see what can be improved.
Backup features are only available in the enterprise edition. The community version lacks a good solution for making backups.
It's very tough, depending on the requirements. There are small things that are hard. For example, making sure that it is going to be installable on public clouds so that you can have different drones on public clouds and different public clouds, and making sure that everything is going to work seamlessly whether on-premises or on the cloud. Right now, on public clouds, you cannot actually install OpenNebula.
The protocol for clusterization is rough and doesn't work well. We stopped using that feature because we had problems. It's not always easy to find answers on the forums if you're using the open source product.
I would like to see OpenNebula add more integration with REST API. XML-RPC API is good, but it becomes a pain to form a resting output. The pathway and prediction and all those things can be tricky. It should have a simple REST API like most other tools. It's the industry standard format. An XML-RPC API gives you an XML document that you have to convert and then do something with that. REST API endpoint provides outputs in a JSON document. I would also like to see support for user data or heat templates, which OpenStack offers, but OpenNebula doesn't have this yet.
With a detailed billing module, this can be used as a complete public cloud implementation, and we are waiting to see that module from OpenNebula. Most of the competitors are offering some sort of billing software to transform their installation to work as a small-sized public cloud, but those offerings from OpenNebula are still missing. With the addition of this module, it will bring completeness to the overall offerings. We hope that OpenNebula listens to this and bring quickly the module.
@Ravi Kumar Tenneti Please check out Stack Console ( www.stackconsole.io ) it should solve all your problems :) It is a Next-Gen billing solution for OpenNebula using which you can sell public cloud like a pro.
The structure of the documentation is very messy. You can't find anything you want. When you search for features you are faced with many different topics and they don't have any connection to each other. Compared to the documentation for VMware, it is really simple and messy. You find many topics that are not related to each other and you have to read all of the documents from beginning to end if you want to know how to set something up. For example, if you want to set up Kubernetes then you should be able to search for the top and learn how to do it. However, with OpenNebula, it is too difficult to do that. They have been saying for the past two and a half years that they would develop a feature to hot-add RAM and CPU, but it does not work. They keep postponing it to the next version and we are impatiently waiting for it. When the ability to hot-add or remove RAM and CPU inside the virtual machine is working, it will be very good. The community has some weaknesses. For example, the answers are sometimes very short and contain no detail, like "Working on it", without answering with specifics. Another weakness is that you have to develop a third-party portal from outside and connect using the NSX API directly from it.
They should add more features like object storage. They should improve some management feature for the storage, for example, they should put third party staff. The integration features should also be improved but I believe they are working on it. They should add HDM and HDS features.