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I'm using Mesos and Marathon. I created an application on Marathon. When applications failover to other node in cluster, can we control where they should invoke? I tried with LIKE "Constrains" in Marathon but it doesn't work as my expectation.

Thanks in advance

xuanhai266
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    why doesn't it work for you? You can do something like `type:LIKE:my_instance_type` to ensure your task runs on the same instance type if fails for any reason – serejja Aug 03 '16 at 13:17
  • For example: I have 4 nodes. I want my app to run on node3 if it fails. What is the constrains in this case? – xuanhai266 Aug 04 '16 at 01:50
  • Why would you want your app to run on a specific host? And what happens if that host fails as well? – Tobi Aug 04 '16 at 07:13
  • that is my problem. when a failure occurs, I want to specify the host that app will run on (instead of leaving Marathon do by itself). is there any solution for that? (by using Marathon or other Mesos frameworks) – xuanhai266 Aug 16 '16 at 04:45

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You can use a LIKE or UNLIKE constraint (or set of contraints) to restrict where marathon can place any given app instance; however, you can't choose a specific one upon failure.

Jason Gilanfarr
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