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[Bug 1260118] Re: VNC on compute node refused connection from controller

 

This is an automated cleanup. This bug report has been closed because it
is older than 18 months and there is no open code change to fix this.
After this time it is unlikely that the circumstances which lead to
the observed issue can be reproduced.

If you can reproduce the bug, please:
* reopen the bug report (set to status "New")
* AND add the detailed steps to reproduce the issue (if applicable)
* AND leave a comment "CONFIRMED FOR: <RELEASE_NAME>"
  Only still supported release names are valid (LIBERTY, MITAKA, OCATA, NEWTON).
  Valid example: CONFIRMED FOR: LIBERTY


** Changed in: nova
   Importance: Low => Undecided

** Changed in: nova
       Status: Confirmed => Expired

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https://bugs.launchpad.net/bugs/1260118

Title:
  VNC on compute node refused connection from controller

Status in OpenStack Dashboard (Horizon):
  Invalid
Status in OpenStack Compute (nova):
  Expired

Bug description:
  Nova-novncproxy threw this error when trying to connect to the VM's
  console via VNC.  The root cause was found to be at the compute node
  (10.52.224.20) which dropped network connection on vnc-server port(s)
  (i.e. 5900+N)  from the controller node.

   22: connecting to: 10.52.224.20:5903
   22: handler exception: [Errno 113] EHOSTUNREACH

  A temp work-around is to manually open up vnc ports on compute
  node(s).

  -A INPUT -m state --state NEW -m tcp -p tcp --dport 5900:5950 -j
  ACCEPT

  Wondering if this could be addressed dynamically, during VM creation
  ideally.  The issue was found with openstack-nova-compute-2013.2-2.el6
  running on CentOS kernel 2.6.32-358.123.2.openstack.el6.x86_64.

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References