VM live migration never ending

gobos

New Member
Feb 7, 2016
2
0
1
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Hello,
i set up new cluster of proxmox. everythings works well until i tried live migration. Process started but never ending (i suppose never because after few h gave up). Migration looks like copy over over again. Did you ever meet this kind of situation? I never had problem with migration on proxmox <3.4.
Hint: migration VM with less ram (2GB) works.


Proxmox 3.4 (on both hypervisors)
software:
proxmox-ve-2.6.32: 3.4-156 (running kernel: 2.6.32-39-pve)
pve-manager: 3.4-6 (running version: 3.4-6/102d4547)
pve-kernel-2.6.32-39-pve: 2.6.32-156
lvm2: 2.02.98-pve4
clvm: 2.02.98-pve4
corosync-pve: 1.4.7-1
openais-pve: 1.1.4-3
libqb0: 0.11.1-2
redhat-cluster-pve: 3.2.0-2
resource-agents-pve: 3.9.2-4
fence-agents-pve: 4.0.10-2
pve-cluster: 3.0-17
qemu-server: 3.4-6
pve-firmware: 1.1-4
libpve-common-perl: 3.0-24
libpve-access-control: 3.0-16
libpve-storage-perl: 3.0-33
pve-libspice-server1: 0.12.4-3
vncterm: 1.1-8
vzctl: 4.0-1pve6
vzprocps: 2.0.11-2
vzquota: 3.1-2
pve-qemu-kvm: 2.2-10
ksm-control-daemon: 1.1-1
glusterfs-client: 3.5.2-1

VM:
32GB ram
24 cores
storage is shared

migration log:

Feb 12 12:38:52 migration status: active (transferred 82453589573, remaining 89640960), total 34368851968)
Feb 12 12:38:53 migration status: active (transferred 82469361303, remaining 73224192), total 34368851968)
Feb 12 12:38:53 migration status: active (transferred 82485896431, remaining 56950784), total 34368851968)
Feb 12 12:38:53 migration status: active (transferred 82505312602, remaining 39845888), total 34368851968)
Feb 12 12:38:53 migration status: active (transferred 82521679835, remaining 23359488), total 34368851968)
Feb 12 12:38:54 migration status: active (transferred 82538247723, remaining 6959104), total 34368851968)
Feb 12 12:38:54 migration status: active (transferred 82552710251, remaining 11302289408), total 34368851968)
Feb 12 12:38:54 migrate_set_downtime: 0.2
Feb 12 12:38:54 migration status: active (transferred 82566651579, remaining 11287191552), total 34368851968)
Feb 12 12:38:55 migration status: active (transferred 82586112795, remaining 11269603328), total 34368851968)
Feb 12 12:38:55 migration status: active (transferred 82602680683, remaining 11253202944), total 34368851968)
 
This is because your vm do memory changes too fast, and network is not enough fast to transfert it in the windows downtime.

The windows downtime increase step by step in time, to try to be able to finish the migration.
 

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