Hi, I have notice recently bigger downtime on qemu live migration. (I'm not sure if it's after qemu update or qemu-server update)
migration: type=insecure qemu-server 6.3-2 pve-qemu-kvm 5.1.0-7 (I'm not sure about the machine running qemu version) Here a sample: 2021-01-22 15:28:38 starting migration of VM 226 to node 'kvm13' (10.3.94.70) 2021-01-22 15:28:42 starting VM 226 on remote node 'kvm13' 2021-01-22 15:28:44 start remote tunnel 2021-01-22 15:28:45 ssh tunnel ver 1 2021-01-22 15:28:45 starting online/live migration on tcp:10.3.94.70:60000 2021-01-22 15:28:45 set migration_caps 2021-01-22 15:28:45 migration speed limit: 8589934592 B/s 2021-01-22 15:28:45 migration downtime limit: 100 ms 2021-01-22 15:28:45 migration cachesize: 268435456 B 2021-01-22 15:28:45 set migration parameters 2021-01-22 15:28:45 start migrate command to tcp:10.3.94.70:60000 2021-01-22 15:28:47 migration speed: 1024.00 MB/s - downtime 2117 ms 2021-01-22 15:28:47 migration status: completed 2021-01-22 15:28:51 migration finished successfully (duration 00:00:13) TASK OK That's strange because I don't see the memory transfert loop logs Migrate back to original host is working 2021-01-22 15:29:34 starting migration of VM 226 to node 'kvm2' (::ffff:10.3.94.50) 2021-01-22 15:29:36 starting VM 226 on remote node 'kvm2' 2021-01-22 15:29:39 start remote tunnel 2021-01-22 15:29:40 ssh tunnel ver 1 2021-01-22 15:29:40 starting online/live migration on tcp:[::ffff:10.3.94.50]:60000 2021-01-22 15:29:40 set migration_caps 2021-01-22 15:29:40 migration speed limit: 8589934592 B/s 2021-01-22 15:29:40 migration downtime limit: 100 ms 2021-01-22 15:29:40 migration cachesize: 268435456 B 2021-01-22 15:29:40 set migration parameters 2021-01-22 15:29:40 start migrate command to tcp:[::ffff:10.3.94.50]:60000 2021-01-22 15:29:41 migration status: active (transferred 396107554, remaining 1732018176), total 2165383168) 2021-01-22 15:29:41 migration xbzrle cachesize: 268435456 transferred 0 pages 0 cachemiss 0 overflow 0 2021-01-22 15:29:42 migration status: active (transferred 973010921, remaining 1089216512), total 2165383168) 2021-01-22 15:29:42 migration xbzrle cachesize: 268435456 transferred 0 pages 0 cachemiss 0 overflow 0 2021-01-22 15:29:43 migration status: active (transferred 1511925476, remaining 483463168), total 2165383168) 2021-01-22 15:29:43 migration xbzrle cachesize: 268435456 transferred 0 pages 0 cachemiss 0 overflow 0 2021-01-22 15:29:44 migration speed: 512.00 MB/s - downtime 148 ms 2021-01-22 15:29:44 migration status: completed 2021-01-22 15:29:47 migration finished successfully (duration 00:00:13) TASK OK Then migrate it again like the first migration is working too 2021-01-22 15:31:07 starting migration of VM 226 to node 'kvm13' (10.3.94.70) 2021-01-22 15:31:10 starting VM 226 on remote node 'kvm13' 2021-01-22 15:31:12 start remote tunnel 2021-01-22 15:31:13 ssh tunnel ver 1 2021-01-22 15:31:13 starting online/live migration on tcp:10.3.94.70:60000 2021-01-22 15:31:13 set migration_caps 2021-01-22 15:31:13 migration speed limit: 8589934592 B/s 2021-01-22 15:31:13 migration downtime limit: 100 ms 2021-01-22 15:31:13 migration cachesize: 268435456 B 2021-01-22 15:31:13 set migration parameters 2021-01-22 15:31:13 start migrate command to tcp:10.3.94.70:60000 2021-01-22 15:31:14 migration status: active (transferred 1092088188, remaining 944365568), total 2165383168) 2021-01-22 15:31:14 migration xbzrle cachesize: 268435456 transferred 0 pages 0 cachemiss 0 overflow 0 2021-01-22 15:31:15 migration speed: 1024.00 MB/s - downtime 55 ms 2021-01-22 15:31:15 migration status: completed 2021-01-22 15:31:19 migration finished successfully (duration 00:00:12) TASK OK Any idea ? Maybe a specific qemu version bug ? _______________________________________________ pve-devel mailing list pve-devel@lists.proxmox.com https://lists.proxmox.com/cgi-bin/mailman/listinfo/pve-devel
