Jay Buffington created MESOS-2256:
-------------------------------------

             Summary: mesos should send schedule status updates for docker pull 
progress
                 Key: MESOS-2256
                 URL: https://issues.apache.org/jira/browse/MESOS-2256
             Project: Mesos
          Issue Type: Bug
          Components: docker
            Reporter: Jay Buffington


The scheduler doesn't get any status updates during the "docker pull".  It's 
not unreasonable for a 1.5GB docker image to take 15+ min to pull over a WAN 
link.  The scheduler does not have enough information to be able to set a 
reasonable timeout, since it doesn't know how big the image is.  

It also isn't able to display download progress to the end user (in the case of 
aurora/marathon) so the user has no idea how fast the download is going or 
percentage complete, so they can't make a decision if they should cancel it or 
retry.



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