Likelihood to Recommend There's really no reason to ever use Mesos. We switched over to
Kubernetes and it's been a breath of fresh air - better CD support, easy CLI for browsing logs, no mysterious dangling redeploys. If you're looking for a tool to manage a fleet of Docker containers on VMs,
Kubernetes beats Mesos by a wide margin.
Read full review K8s should be avoided - If your application works well without being converted into microservices-based architecture & fits correctly in a VM, needs less scaling, have a fixed traffic pattern then it is better to keep away from Kubernetes. Otherwise, the operational challenges & technical expertise will add a lot to the OPEX. Also, if you're the one who thinks that containers consume fewer resources as compared to VMs then this is not true. As soon as you convert your application to a microservice-based architecture, a lot of components will add up, shooting your resource consumption even higher than VMs so, please beware. Kubernetes is a good choice - When the application needs quick scaling, is already in microservice-based architecture, has no fixed traffic pattern, most of the employees already have desired skills.
Read full review Pros Mesos may have many frameworks. If you have Mesos installed on your servers, you may use it for many kinds of tasks. Today we're running only web applications but the idea is to install a different framework for big data soon. There is a good community growing around it. Read full review Complex cluster management can be done with simple commands with strong authentication and authorization schemes Exhaustive documentation and open community smoothens the learning process As a user a few concepts like pod, deployment and service are sufficient to go a long way Read full review Cons Unreliable deployments that would fail for no good reason. Sometimes our Docker container would be "restarting" forever because Mesos thought it didn't have enough resources to start the container. Impossibly slow UI. Built in React under the hood with a lot of bloatware backed in, so loading the Mesos UI on a slow internet connection was painful. No real logging solution - it would stream "console.log()" output to the UI, but searching for logs wasn't really possible without downloading a huge file. No built-in support for redeploying containers from a CI. We had to create a service whose whole job was to expose an HTTP endpoint that restarted a container, and then made Circle CI ping the endpoint whenever we wanted to redeploy. Read full review Local development, Kubernetes does tend to be a bit complicated and unnecessary in environments where all development is done locally. The need for add-ons, Helm is almost required when running Kubernetes. This brings a whole new tool to manage and learn before a developer can really start to use Kubernetes effectively. Finicy configmap schemes. Kubernetes configmaps often have environment breaking hangups. The fail safes surrounding configmaps are sadly lacking. Read full review Support Rating No real support channel, the Mesos
GitHub issues list was the only one we found and it wasn't particularly helpful.
Read full review Alternatives Considered Kubernetes is really great and their community is growing really fast (Google influence). We evaluated it in the beginning and it would fit for our web applications workload. We decided to proceed with Mesos because it has more potential. You may use a different framework for different kinds of tasks on Mesos. There is a
Kubernetes framework for Mesos, by the way.
Read full review Most of the required features for any orchestration tool or framework, which is provided by Kubernetes. After understanding all modules and features of the K8S, it is the best fit for us as compared with others out there.
Read full review Return on Investment It's optimizing our resources. It's improving our process. This argument is not just for Mesos, but we needed a tool like this to start changing and it works like a charm. It's open source. Read full review Because of microservices, Kubernetes makes it easy to find the cost of each application easily. Like every new technology, initially, it took more resources to educate ourselves but over a period of time, I believe it's going to be worth it. Read full review ScreenShots