search for: setmaxdowntime

Displaying 7 results from an estimated 7 matches for "setmaxdowntime".

2013 Sep 24
2
Migrate hangs at 99%
Hello guys! We have a lot of virtual machines and I recently tried out the migrate feature of libvirt. It works like a charm, even without shared storage, but when we try to migrate a VM under a little pressure (a HTTP server gets some 1-5 requests/sec) the migration process hangs at 99%. After we stop the stressing of the VM, the migration immediately finishes. I'm using the following
2015 Jun 11
2
Migrating guests
Hi, I'm experimenting with the migration function of virsh. I'm doing the migrate with following commands: virsh migrate --life --persistent --copy-storage-all --verbose --abort-on-error domain qemu+ssh://root@destination/system virsh migrate-setmaxdowntime domain 20000 However sometimes at the end of the migration, the guest isn't started on the destination host. So I'm left with a machine that had an improper shutdown... If a live migration isn't reliable, I'm thinking to migrate as such: - guest is still runing - copy or rsync the...
2014 Jan 10
0
Migration: default value for maxdowntime? (QEMU/KVM)
I am wondering what the default value for migrate-setmaxdowntime is when using QEMU/KVM. http://builder.virt-tools.org/artifacts/libvirt-virshcmdref/html/sect-migrate-setmaxdowntime.html Is the default the same as QEMU's default in this case? I was looking at libvirts source and it appears there is no default set within libvirt, unless I missed it. I do...
2015 Jun 12
0
Re: Migrating guests
...wrote: > Hi, > > I'm experimenting with the migration function of virsh. I'm doing the > migrate with following commands: > > virsh migrate --life --persistent --copy-storage-all --verbose > --abort-on-error domain qemu+ssh://root@destination/system virsh > migrate-setmaxdowntime domain 20000 > > However sometimes at the end of the migration, the guest isn't started > on the destination host. So I'm left with a machine that had an > improper shutdown... > > If a live migration isn't reliable, I'm thinking to migrate as such: - > guest...
2010 Dec 17
1
using virDomainMigrateSetMaxDowntime
I would like to use the virDomainMigrateSetMaxDowntime but I'm a bit confused about how to use it. If I try to set the downtime before I call domain.migrate(), I get the error "domain is not being migrated". But I cannot call it afterwards because domain.migrate() does not return until the migration has completed. Am I meant to put the...
2013 Sep 25
0
Re: Migrate hangs at 99%
...a charm, even without shared storage, but when we try to > migrate a VM under a little pressure (a HTTP server gets some 1-5 > requests/sec) the migration process hangs at 99%. The maxdowntime is probably too low for the migration to complete. Try setting it to a higher value : virsh migrate-setmaxdowntime <domain> <seconds> Please tell me if it worked.
2014 Mar 04
1
Live migration (kvm) not working if any I/O operation is in progress
Hello, I'd like to know if this is an hypervisor related problem or a libvirt one. I did this experiment: on VM I started watching a video on youtube. While video was in progress I started migration. Migration did not complete until video was not finished. I did another experiment: I installed a web server on VM. I then started an httperf stress test. As before migration did not complete