Red Hat Bugzilla – Bug 848777
virt-who creates background loop even if it's not running in background mode
Last modified: 2016-11-30 19:30:54 EST
Description of problem: Start virt-who service as "virt-who -d", if the virtual machines are added/deleted, virt-who can't report the current virt.uuids, only report the event. Version-Release number of selected component (if applicable): virt-who-0.7-2.el5 subscription-manager-firstboot-1.0.13-1.el5 subscription-manager-1.0.13-1.el5 subscription-manager-gui-1.0.13-1.el5 python-rhsm-1.0.5-1.el5 katello-headpin-all-0.2.13-1.el6_2.noarch candlepin-0.6.5-1.el6_2.noarch How reproducible: 100% Steps to Reproduce: 1. Register Host to SAM server 2. Edit virt-who config file on Host: VIRTWHO_BACKGROUND=1 VIRTWHO_DEBUG=1 3. Start the virt-who service # virt-who -d DEBUG: Starting event loop /usr/lib64/python2.4/site-packages/rhsm/certificate.py:123: DeprecationWarning: Call to deprecated function: __init__ category=DeprecationWarning) DEBUG: Virt-who is running in libvirt mode DEBUG: Starting infinite loop with 3600 seconds interval DEBUG: Virtual machine found: 5.8_Server_x86_64: 15cbe67a-50b0-f62f-33c5-5e332622964a DEBUG: Sending list of uuids: ['15cbe67a-50b0-f62f-33c5-5e332622964a'] 4. Add one virtual guest: # virt-who -d DEBUG: Starting event loop /usr/lib64/python2.4/site-packages/rhsm/certificate.py:123: DeprecationWarning: Call to deprecated function: __init__ category=DeprecationWarning) DEBUG: Virt-who is running in libvirt mode DEBUG: Starting infinite loop with 3600 seconds interval DEBUG: Virtual machine found: 5.8_Server_x86_64: 15cbe67a-50b0-f62f-33c5-5e332622964a DEBUG: Sending list of uuids: ['15cbe67a-50b0-f62f-33c5-5e332622964a'] DEBUG: EVENT: Domain test(7) Started Booted DEBUG: EVENT: Domain test(7) Defined Updated 5. List the current virtual guests virsh list --all Id Name State ---------------------------------- 6 5.8_Server_x86_64 running 7 test running 6. Restart the virt-who, it will report the current virt.uuids # virt-who -d DEBUG: Starting event loop /usr/lib64/python2.4/site-packages/rhsm/certificate.py:123: DeprecationWarning: Call to deprecated function: __init__ category=DeprecationWarning) DEBUG: Virt-who is running in libvirt mode DEBUG: Starting infinite loop with 3600 seconds interval DEBUG: Virtual machine found: 5.8_Server_x86_64: 15cbe67a-50b0-f62f-33c5-5e332622964a DEBUG: Virtual machine found: test: d01d1b9f-6c30-ed74-f48b-dc1d126ae259 DEBUG: Sending list of uuids: ['15cbe67a-50b0-f62f-33c5-5e332622964a', 'd01d1b9f-6c30-ed74-f48b-dc1d126ae259'] Actual results: virt-who -d can't report the virt.uuids immediately if add/delete virtual machines, only report the event. Expected results: virt-who -d can report the virt.uuids immediately if add/delete virtual machines. Additional info:
This request was evaluated by Red Hat Product Management for inclusion in a Red Hat Enterprise Linux release. Product Management has requested further review of this request by Red Hat Engineering, for potential inclusion in a Red Hat Enterprise Linux release for currently deployed products. This request is not yet committed for inclusion in a release.
This is expected behaviour. Running virt-who from command line don't read /etc/sysconfig/virt-who - this file is used only when starting virt-who as a service. Therefore the VIRTWHO_BACKGROUND=1 option is not used and virt-who shouldn't create background loop. But the background loop is created by mistake and the events are written to the log. I'll use this bug to fix this.
This bug has been fixed in virt-who-0.7-4.el5.
The background loop will be stop when add one guest. Moving to ASSIGNED. 1. start virt-who via command line [root@localhost ~]# virt-who -d WARNING: Listening for events is not available in VDSM or ESX mode DEBUG: Virt-who is running in libvirt mode DEBUG: Starting infinite loop with 3600 seconds interval DEBUG: Virtual machine found: test3: 03651aeb-0e9d-1ac5-c97e-fc0f478d9341 DEBUG: Virtual machine found: test2: 6b170a2c-5966-63e7-a970-c571bb45ff5a DEBUG: Virtual machine found: rhel5.9server: fc584ab2-3f59-9423-aedf-346e15ce755e DEBUG: Sending list of uuids: ['03651aeb-0e9d-1ac5-c97e-fc0f478d9341', '6b170a2c-5966-63e7-a970-c571bb45ff5a', 'fc584ab2-3f59-9423-aedf-346e15ce755e'] 2. Add one guest [root@localhost ~]# virt-who -d WARNING: Listening for events is not available in VDSM or ESX mode DEBUG: Virt-who is running in libvirt mode DEBUG: Starting infinite loop with 3600 seconds interval DEBUG: Virtual machine found: test3: 03651aeb-0e9d-1ac5-c97e-fc0f478d9341 DEBUG: Virtual machine found: test2: 6b170a2c-5966-63e7-a970-c571bb45ff5a DEBUG: Virtual machine found: rhel5.9server: fc584ab2-3f59-9423-aedf-346e15ce755e DEBUG: Sending list of uuids: ['03651aeb-0e9d-1ac5-c97e-fc0f478d9341', '6b170a2c-5966-63e7-a970-c571bb45ff5a', 'fc584ab2-3f59-9423-aedf-346e15ce755e'] Segmentation fault ^^^^^ [root@localhost ~]#
This bug should be fixed in virt-who-0.7-5.el5.
Version: virt-who-0.7-5.el5 libvirt-0.8.2-29.el5 python-rhsm-1.0.6-1.el5 subscription-manager-1.0.14-1.el5 katello-headpin-all-0.2.13-1.el6_2.noarch candlepin-0.6.5-1.el6_2.noarch # virt-who -d WARNING: Listening for events is not available in VDSM or ESX mode DEBUG: Virt-who is running in libvirt mode DEBUG: Starting infinite loop with 3600 seconds interval DEBUG: Virtual machine found: 5.8_Server_x86_64: 26bf6b1d-e6fc-29ed-3d8c-bb89f15f3e77 DEBUG: Sending list of uuids: ['26bf6b1d-e6fc-29ed-3d8c-bb89f15f3e77'] ^^^^^^^^^^^No the "Segmentation fault" But add/delete/migrate guests, the /var/log/rhsm/rhsm.log no updates. This issue can be tracked in: https://bugzilla.redhat.com/show_bug.cgi?id=848763
According comment7, moving the bug to VERIFIED.
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-2013-0072.html