Bug 697841

Summary: --verbose does not work well with tunnelled migration
Product: Red Hat Enterprise Linux 6 Reporter: weizhang <weizhan>
Component: libvirtAssignee: Eric Blake <eblake>
Status: CLOSED ERRATA QA Contact: Virtualization Bugs <virt-bugs>
Severity: low Docs Contact:
Priority: low    
Version: 6.1CC: dallan, dyuan, eblake, gren, llim, mzhan, yoyzhang, yupzhang
Target Milestone: rc   
Target Release: ---   
Hardware: x86_64   
OS: Linux   
Whiteboard:
Fixed In Version: libvirt-0.9.4-rc1-1.el6 Doc Type: Bug Fix
Doc Text:
Story Points: ---
Clone Of: Environment:
Last Closed: 2011-12-06 11:05:30 UTC Type: ---
Regression: --- Mount Type: ---
Documentation: --- CRM:
Verified Versions: Category: ---
oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: --- Target Upstream Version:

Description weizhang 2011-04-19 12:10:36 UTC 
Description of problem:
When do tunnelled migration with --verbose, it does not list the process change during migration, and only list at the end of migration with 100%.

Version-Release number of selected component (if applicable):
libvirt-0.8.7-18.el6.x86_64
kernel-2.6.32-131.0.1.el6.x86_64
qemu-kvm-0.12.1.2-2.158.el6.x86_64


How reproducible:
100%

Steps to Reproduce:
1. prepare 2 hosts
2. run #setsebool -P virt_use_nfs 1 
on both sides
3. mount nfs on both sides
4. do migration with
virsh migrate --live --p2p --tunnelled vr-rhel6u1-x86_64-kvm qemu+ssh://10.66.82.251/system --verbose
  
Actual results:
the migration process will not display until migration finished.

Expected results:
the migration process change will display during migration.

Additional info:
Comment 1 Eric Blake 2011-06-10 14:00:18 UTC 
I think this upstream commit should do the trick:

commit 1d916a60a7bd7d9fc56503bc526884fc715c04ef
Author: Daniel P. Berrange <berrange>
Date:   Mon May 9 16:52:42 2011 +0100

    Run tunnelled migration IO in separate thread
    
    By running the doTunnelSendAll code in a separate thread, the
    main thread can do qemuMigrationWaitForCompletion as with
    normal migration. This in turn ensures that job signals work
    correctly and that progress monitoring can be done
    
    * src/qemu/qemu_migration.c: Run tunnelled migration in
      separate thread
Comment 6 yuping zhang 2011-08-02 07:27:31 UTC 
Verified this issue with:

kernel-2.6.32-172.el6.x86_64
qemu-kvm-0.12.1.2-2.172.el6.x86_64
libvirt-0.9.4-0rc2.el6.x86_64

Steps:
1. prepare 2 hosts
2. run #setsebool -P virt_use_nfs 1 on both sides
3. mount nfs on both sides
4. do migration with
# virsh migrate --live --p2p --tunnelled migrate_verbose qemu+ssh://10.66.7.56/system --verbose
Migration: [100 %]

The migration process change display during migration.
So change the status to VERIFIED.
Comment 7 errata-xmlrpc 2011-12-06 11:05:30 UTC 
Since the problem described in this bug report should be
resolved in a recent advisory, it has been closed with a
resolution of ERRATA.

For information on the advisory, and where to find the updated
files, follow the link below.

If the solution does not work for you, open a new bug report.

http://rhn.redhat.com/errata/RHBA-2011-1513.html