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Health Manager in Cloud Foundary?

I am trying to understand the architecture of cloud foundry

  1. For every application deployed on the cloud is there one Health Manager for each application ? Or Is there only one health manager that monitors all the application deployed on the cloud ? Can you give me an example ?

  2. What is a NFS Server used for ?

Solution

    1. There is only one Health Manager for all running apps. Multiple HMs can be deployed for high availability reasons, but HM nodes do not map to application instances. See http://docs.cloudfoundry.org/concepts/high-availability.html for more info on scaling CF components.

    2. NFS server is used as a blobstore for application droplets.