[Openstack-operators] basics of live-migration .. (Solved)

Salman Toor salman.toor at it.uu.se
Thu Apr 18 09:54:33 UTC 2013


Hi, 

Yes after uncommenting the line you mentioned instances migrate successfully :-) 

Thread closed!

Thanks. 
Regards..
Salman. 


Salman Toor, PhD
salman.toor at it.uu.se



On Apr 18, 2013, at 9:56 AM, Razique Mahroua wrote:

> Hi Salman,
> under Fedora, the file to update is /etc/sysconfig/libvirtd, and uncomment the following line 
> # LIBVIRTD_ARGS="--listen"
> See : http://wiki.libvirt.org/page/Libvirt_daemon_is_not_listening_on_tcp_ports_although_configured_to
> 
> I'll try to fix the documentation today for Fedora/ CentOS instructions
> 
> Regards,
> Razique
> 
> Razique Mahroua - Nuage & Co
> razique.mahroua at gmail.com
> Tel : +33 9 72 37 94 15
> 
> <NUAGECO-LOGO-Fblan_petit.jpg>
> 
> Le 18 avr. 2013 à 01:13, Salman Toor <salman.toor at it.uu.se> a écrit :
> 
>> Hi, 
>> 
>> I have a minimal setup of two machines just for testing the live migration. 
>> 
>> I can start instances on both of the machines without problem. The network is based on FlatDHCPManager.
>> 
>> Can someone please give some feed back on my following queries... 
>> 
>> 1 - Can I use Qemu for the live migration? Actually in the guide only KVMLibvirt and XenServer examples are given and I am using Qemu 
>> 
>> 2 - In the guide 
>> http://docs.openstack.org/folsom/openstack-compute/admin/content/configuring-migrations.html
>> It said 
>> 
>> Update the libvirt configurations. Modify /etc/libvirt/libvirtd.conf:
>> 
>> before : #listen_tls = 0
>> after : listen_tls = 0
>> 
>> before : #listen_tcp = 1
>> after : listen_tcp = 1
>> 
>> add: auth_tcp = "none"
>>                             
>> Modify /etc/default/libvirt-bin
>> 
>> before :libvirtd_opts=" -d"
>> after :libvirtd_opts=" -d -l"
>>                             
>> Restart libvirt. After executing the command, ensure that libvirt is succesfully restarted.
>> 
>> $ service libvirt-bin restart
>> $ ps -ef | grep libvirt
>> <icon_clipboard.png>
>> 1
>> root 1145 1 0 Nov27 ? 00:00:03 /usr/sbin/libvirtd -d -l
>> I have modified libvirtd.conf but I cannot find libvirt-bin... I am using fedora-17. My libvirtd is running without -d and -l
>> 
>> 3 - What are the correct what to include -d and -l while using fedora-17 
>> 
>>  port 16509 and 49152 to 49261 are also open on each node.
>> 
>> The problem is I didn't get any error message (I think .... )
>> 
>> 
>> [root at openstack-controller openstack]# nova-manage service describe_resource openstack-controller.my.pp
>> HOST                              PROJECT     cpu mem(mb)     hdd
>> openstack-controller.my.pp(total)                         1    1003      15
>> openstack-controller.my.pp(used_now)                      0     628       3
>> openstack-controller.my.pp(used_max)                      0       0       0
>> 
>> [root at openstack-controller openstack]# nova-manage service describe_resource openstack-compute1.my.pp
>> HOST                              PROJECT     cpu mem(mb)     hdd
>> openstack-compute1.my.pp(total)                         1    1003      15
>> openstack-compute1.my.pp(used_now)                      1     493       3
>> openstack-compute1.my.pp(used_max)                      1     512       0
>> openstack-compute1.my.pp 8439d730212d4aad8f3357468162ee8b       1     512       0
>> 
>> [openstack at openstack-controller ~]$ nova live-migration 93bde07b-8e74-43ee-80b5-c04b57f9c3e6 openstack-controller.my.pp
>> [openstack at openstack-controller ~]$
>> 
>> 
>> But not effect ...
>> 
>> I have also used 
>> 
>> live_migration_flag=VIR_MIGRATE_UNDEFINE_SOURCE,VIR_MIGRATE_PEER2PEER,VIR_MIGRATE_LIVE
>> image_cache_manager_interval=0
>> 
>> 
>> compute.log and scheduler.log are attached with the mail. 
>> 
>> 
>> 
>> 
>> Thanks in Advance.
>> 
>> <compute.log>
>> <scheduler.log>
>> 
>> 
>> Salman Toor, PhD
>> salman.toor at it.uu.se
>> 
>> 
>> 
>> _______________________________________________
>> OpenStack-operators mailing list
>> OpenStack-operators at lists.openstack.org
>> http://lists.openstack.org/cgi-bin/mailman/listinfo/openstack-operators
> 

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