Mastering Mesos

Resource isolation

One of the key requirements of a cluster manager is to ensure that the allocation of resources to a particular framework does not have an impact on any active running jobs of some other framework. Provision for isolation mechanisms on slaves to compartmentalize different tasks is thus a key feature of Mesos. Containers are leveraged for resource isolation with a pluggable architecture. The Mesos slave uses the Containerizer API to provide an isolated environment to run a framework's executor and its corresponding tasks. The Containerizer API's objective is to support a wide range of implementations, which implies that custom containerizers and isolators can be developed. When a slave process starts, the containerizer to be used ...