2015-09-20 03:31:33 +00:00
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---
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2020-02-06 23:45:31 +00:00
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layout: intro
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page_title: 'Nomad vs. Mesos with Aurora, Marathon, etc'
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description: Comparison between Nomad and Mesos with Marathon
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2015-09-20 03:31:33 +00:00
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---
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2019-05-08 21:40:38 +00:00
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# Nomad vs. Mesos with Marathon
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2015-09-20 03:31:33 +00:00
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Mesos is a resource manager, which is used to pool together the
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resources of a datacenter and exposes an API to integrate with
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Frameworks that have scheduling and job management logic. Mesos
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depends on ZooKeeper to provide both coordination and storage.
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2015-10-10 16:24:33 +00:00
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There are many different frameworks that integrate with Mesos;
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2015-09-20 03:31:33 +00:00
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popular general purpose ones include Aurora and Marathon.
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These frameworks allow users to submit jobs and implement scheduling
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2015-09-25 00:05:42 +00:00
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logic. They depend on Mesos for resource management, and external
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systems like ZooKeeper to provide coordination and storage.
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2015-09-20 03:31:33 +00:00
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Nomad is architecturally much simpler. Nomad is a single binary, both for clients
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and servers, and requires no external services for coordination or storage.
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Nomad combines features of both resource managers and schedulers into a single system.
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This makes Nomad operationally simpler and enables more sophisticated
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optimizations.
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Nomad is designed to be a global state, optimistically concurrent scheduler.
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Global state means schedulers get access to the entire state of the cluster when
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making decisions enabling richer constraints, job priorities, resource preemption,
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and faster placements. Optimistic concurrency allows Nomad to make scheduling
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decisions in parallel increasing throughput, reducing latency, and increasing
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the scale that can be supported.
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Mesos does not support federation or multiple failure isolation regions.
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Nomad supports multi-datacenter and multi-region configurations for failure
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isolation and scalability.
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