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Bug 669630

Summary: during migration , restart libvirtd on the destination machine will cause the guest paused after being migrated or prevent from a successful migration
Product: Red Hat Enterprise Linux 6 Reporter: Vivian Bian <vbian>
Component: libvirtAssignee: Daniel Veillard <veillard>
Status: CLOSED NOTABUG QA Contact: Virtualization Bugs <virt-bugs>
Severity: medium Docs Contact:
Priority: low    
Version: 6.1CC: eblake, xen-maint, yoyzhang
Target Milestone: rc   
Target Release: ---   
Hardware: Unspecified   
OS: Unspecified   
Whiteboard:
Fixed In Version: Doc Type: Bug Fix
Doc Text:
Story Points: ---
Clone Of: Environment:
Last Closed: 2011-01-14 09:11:24 UTC Type: ---
Regression: --- Mount Type: ---
Documentation: --- CRM:
Verified Versions: Category: ---
oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: --- Target Upstream Version:
Embargoed:

Description Vivian Bian 2011-01-14 06:52:23 UTC
Description of problem:

Sometimes 

[root@source ~]# virsh migrate --live kvm qemu+ssh://10.66.93.106/system
root.93.106's password: 
error: server closed connection: 
error: Reconnected to the hypervisor


[root@target ~]# service libvirtd restart
Stopping libvirtd daemon:                                  [  OK  ]
Starting libvirtd daemon:                                  [  OK  ]

[root@dhcp-93-134 ~]# virsh list --all
 Id Name                 State
----------------------------------

sometimes 

[root@source ~]# virsh migrate --live kvm qemu+ssh://10.66.93.106/system
root.93.106's password: 
error: server closed connection: 
error: Reconnected to the hypervisor


[root@target ~]# service libvirtd restart
Stopping libvirtd daemon:                                  [  OK  ]
Starting libvirtd daemon:                                  [  OK  ]

[root@dhcp-93-134 ~]# virsh list --all
 Id Name                 State
----------------------------------
  5 kvm                  paused 

Version-Release number of selected component (if applicable):
libvirt-0.8.7-1.el6.x86_64

How reproducible:
always

  

Expected results:
guest could be migrated successfully

Additional info:

Comment 2 Vivian Bian 2011-01-14 09:11:24 UTC
libvirt is not able to cope with such situation since during migration, the client (or source libvirtd) has open connections to both sides through which the migration is controlled... if any of the connection is dropped, something will fail; how it fails depends on what libvirtd is restarted and in which migration phase that happens


So this is the expected result . Close this bug as NOTABUG