[Bug 1524989] Re: [SRU] ScaleIO driver could attach wrong volume to the VM

[Edward Hope-Morley]

** Description changed:

  When running multiple attach volume operations with multiple volumes and
  multiple VMs, a wrong volume could end up being attached to a VM.  To
  fix this, connect_volume and disconnect_volume should be locked.
  
+ [Impact]
  
- [Impact] 
- 
-  * Backport to Ubuntu Wily/Liberty to safeguard against race conditions
+  * Backport to Ubuntu Wily/Liberty to safeguard against race conditions
  when performing concurrent attach/detach requests.
  
  [Test Case]
  
-  * Deploy Openstack Liberty
-  * Boot a 5 instances and run http://paste.ubuntu.com/16738910/
+  * Deploy Openstack Liberty
+  * Boot > 1 instances and run https://gist.github.com/dosaboy/ea66eaeae945c6ed07e285b17602bb87
  
  [Regression Potential]
  
-  * Nothing expected
+  * Nothing expected

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https://bugs.launchpad.net/bugs/1524989

Title:
  [SRU] ScaleIO driver could attach wrong volume to the VM

Status in Ubuntu Cloud Archive:
  Invalid
Status in Ubuntu Cloud Archive liberty series:
  New
Status in os-brick:
  Fix Released
Status in python-os-brick package in Ubuntu:
  Invalid
Status in python-os-brick source package in Wily:
  Fix Committed

Bug description:
  When running multiple attach volume operations with multiple volumes
  and multiple VMs, a wrong volume could end up being attached to a VM.
  To fix this, connect_volume and disconnect_volume should be locked.

  [Impact]

   * Backport to Ubuntu Wily/Liberty to safeguard against race
  conditions when performing concurrent attach/detach requests.

  [Test Case]

   * Deploy Openstack Liberty
   * Boot > 1 instances and run https://gist.github.com/dosaboy/ea66eaeae945c6ed07e285b17602bb87

  [Regression Potential]

   * Nothing expected

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