[pve-devel] [PATCH v4 qemu-server 20/27] Take note of changes to the volume IDs when migrating and update the config
Fabian Ebner
f.ebner at proxmox.com
Thu Mar 26 09:09:50 CET 2020
Signed-off-by: Fabian Ebner <f.ebner at proxmox.com>
---
PVE/QemuMigrate.pm | 22 +++++++++++++++++++---
1 file changed, 19 insertions(+), 3 deletions(-)
diff --git a/PVE/QemuMigrate.pm b/PVE/QemuMigrate.pm
index 400c5e2..0b99fb9 100644
--- a/PVE/QemuMigrate.pm
+++ b/PVE/QemuMigrate.pm
@@ -279,7 +279,9 @@ sub sync_disks {
my $conf = $self->{vmconf};
# local volumes which have been copied
+ # and their old_id => new_id pairs
$self->{volumes} = [];
+ $self->{volume_map} = {};
my $override_targetsid = $self->{opts}->{targetstorage};
@@ -534,8 +536,11 @@ sub sync_disks {
'with_snapshots' => $local_volumes->{$volid}->{snapshots},
};
- PVE::Storage::storage_migrate($self->{storecfg}, $volid, $self->{ssh_info},
- $targetsid, $storage_migrate_opts);
+ my $new_volid = PVE::Storage::storage_migrate($self->{storecfg}, $volid, $self->{ssh_info},
+ $targetsid, $storage_migrate_opts);
+
+ $self->{volume_map}->{$volid} = $new_volid;
+ $self->log('info', "volume '$volid' is '$new_volid' on the target\n");
}
}
};
@@ -1068,6 +1073,13 @@ sub phase3_cleanup {
my $tunnel = $self->{tunnel};
+ # Needs to happen before printing the drives that where migrated via qemu,
+ # since a new volume on the target might have the same ID as an old volume
+ # on the source and update_volume_ids relies on matching IDs in the config.
+ if ($self->{volume_map}) {
+ PVE::QemuConfig->update_volume_ids($conf, $self->{volume_map});
+ }
+
if ($self->{storage_migration}) {
# finish block-job with block-job-cancel, to disconnect source VM from NBD
# to avoid it trying to re-establish it. We are in blockjob ready state,
@@ -1082,11 +1094,15 @@ sub phase3_cleanup {
foreach my $target_drive (keys %{$self->{target_drive}}) {
my $drive = PVE::QemuServer::parse_drive($target_drive, $self->{target_drive}->{$target_drive}->{drivestr});
$conf->{$target_drive} = PVE::QemuServer::print_drive($drive);
- PVE::QemuConfig->write_config($vmid, $conf);
}
}
}
+ # only write after successfully completing the migration
+ if ($self->{volume_map} || $self->{storage_migration}) {
+ PVE::QemuConfig->write_config($vmid, $conf);
+ }
+
# transfer replication state before move config
$self->transfer_replication_state() if $self->{replicated_volumes};
--
2.20.1
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