Comment 0 for bug 1746630

Revision history for this message
Seyeong Kim (seyeongkim) wrote : virsh api is stuck when vm is down with NFS borken

[Impact]

virsh command is hang if there is broken VM on broken NFS

[Test Case]

1. deploy VM with NFS storage ( running )
2. block NFS via iptables
- iptables -A OUTPUT -d NFS_SERVER_IP -p tcp --dport 2049 -j DROP ( on host machine )
3. virsh blkdeviotune generic hda => hang
4. virsh domstats => hang
5. virsh list => lang

[Regression]
After patch, we can command domstats and list with short timeout. and libvirt-bin needs to be restarted. so if there are many VMs it will be affected short time while it is restarting.

[Others]

This bug is fixed in redhat bug report[1] and mailing list[2] and git commit[3][4][5]

[1] https://bugzilla.redhat.com/show_bug.cgi?id=1337073
[2] https://www.redhat.com/archives/libvir-list/2016-May/msg01353.html
[3] https://libvirt.org/git/?p=libvirt.git;a=commit;h=5d2b0e6f12b4e57d75ed1047ab1c36443b7a54b3
[4] https://libvirt.org/git/?p=libvirt.git;a=commit;h=3aa5d51a9530a8737ca584b393c29297dd9bbc37
[5] https://libvirt.org/git/?p=libvirt.git;a=commit;h=71d2c172edb997bae1e883b2e1bafa97d9f953a1