use strict;
use warnings;
-use PVE::AbstractMigrate;
+
use IO::File;
use IPC::Open2;
use POSIX qw( WNOHANG );
-use PVE::INotify;
-use PVE::Tools;
-use PVE::Cluster;
-use PVE::Storage;
-use PVE::QemuServer;
use Time::HiRes qw( usleep );
+
+use PVE::Cluster;
+use PVE::INotify;
use PVE::RPCEnvironment;
+use PVE::Replication;
use PVE::ReplicationConfig;
use PVE::ReplicationState;
-use PVE::Replication;
+use PVE::Storage;
+use PVE::Tools;
+
+use PVE::QemuConfig;
+use PVE::QemuServer::CPUConfig;
+use PVE::QemuServer::Drive;
+use PVE::QemuServer::Helpers qw(min_version);
+use PVE::QemuServer::Machine;
+use PVE::QemuServer::Monitor qw(mon_cmd);
+use PVE::QemuServer;
+use PVE::AbstractMigrate;
use base qw(PVE::AbstractMigrate);
sub fork_command_pipe {
sub fork_tunnel {
my ($self, $tunnel_addr) = @_;
- my @localtunnelinfo = defined($tunnel_addr) ? ('-L' , $tunnel_addr ) : ();
+ my @localtunnelinfo = ();
+ foreach my $addr (@$tunnel_addr) {
+ push @localtunnelinfo, '-L', $addr;
+ }
my $cmd = [@{$self->{rem_ssh}}, '-o ExitOnForwardFailure=yes', @localtunnelinfo, '/usr/sbin/qm', 'mtunnel' ];
if ($tunnel->{sock_addr}) {
# ssh does not clean up on local host
- my $cmd = ['rm', '-f', $tunnel->{sock_addr}]; #
+ my $cmd = ['rm', '-f', @{$tunnel->{sock_addr}}]; #
PVE::Tools::run_command($cmd);
# .. and just to be sure check on remote side
die "can't migrate running VM without --online\n" if !$online;
$running = $pid;
- $self->{forcemachine} = PVE::QemuServer::qemu_machine_pxe($vmid, $conf);
+ $self->{forcemachine} = PVE::QemuServer::Machine::qemu_machine_pxe($vmid, $conf);
+ # To support custom CPU types, we keep QEMU's "-cpu" parameter intact.
+ # Since the parameter itself contains no reference to a custom model,
+ # this makes migration independent of changes to "cpu-models.conf".
+ if ($conf->{cpu}) {
+ my $cpuconf = PVE::QemuServer::CPUConfig::parse_cpu_conf_basic($conf->{cpu});
+ if ($cpuconf && PVE::QemuServer::CPUConfig::is_custom_model($cpuconf->{cputype})) {
+ $self->{forcecpu} = PVE::QemuServer::CPUConfig::get_cpu_from_running_vm($pid);
+ }
+ }
}
- if (my $loc_res = PVE::QemuServer::check_local_resources($conf, 1)) {
+ my $loc_res = PVE::QemuServer::check_local_resources($conf, 1);
+ if (scalar @$loc_res) {
if ($self->{running} || !$self->{opts}->{force}) {
- die "can't migrate VM which uses local devices\n";
+ die "can't migrate VM which uses local devices: " . join(", ", @$loc_res) . "\n";
} else {
$self->log('info', "migrating VM which uses local devices");
}
my ($sid, $volname) = PVE::Storage::parse_volume_id($volid, 1);
# check if storage is available on both nodes
- my $targetsid = $self->{opts}->{targetstorage} ? $self->{opts}->{targetstorage} : $sid;
+ my $targetsid = PVE::QemuServer::map_storage($self->{opts}->{storagemap}, $sid);
my $scfg = PVE::Storage::storage_check_node($self->{storecfg}, $sid);
PVE::Storage::storage_check_node($self->{storecfg}, $targetsid, $self->{node});
if !$plugin->check_connection($sid, $scfg);
} else {
# only activate if not shared
+ next if ($volid =~ m/vm-\d+-cloudinit/);
push @$need_activate, $volid;
}
}
my $conf = $self->{vmconf};
# local volumes which have been copied
+ # and their old_id => new_id pairs
$self->{volumes} = [];
+ $self->{volume_map} = {};
+ my $storecfg = $self->{storecfg};
eval {
# found local volumes and their origin
my $other_errors = [];
my $abort = 0;
- my $sharedvm = 1;
-
my $log_error = sub {
my ($msg, $volid) = @_;
$abort = 1;
};
- my @sids = PVE::Storage::storage_ids($self->{storecfg});
+ my @sids = PVE::Storage::storage_ids($storecfg);
foreach my $storeid (@sids) {
- my $scfg = PVE::Storage::storage_config($self->{storecfg}, $storeid);
+ my $scfg = PVE::Storage::storage_config($storecfg, $storeid);
next if $scfg->{shared};
- next if !PVE::Storage::storage_check_enabled($self->{storecfg}, $storeid, undef, 1);
+ next if !PVE::Storage::storage_check_enabled($storecfg, $storeid, undef, 1);
# get list from PVE::Storage (for unused volumes)
- my $dl = PVE::Storage::vdisk_list($self->{storecfg}, $storeid, $vmid);
+ my $dl = PVE::Storage::vdisk_list($storecfg, $storeid, $vmid);
next if @{$dl->{$storeid}} == 0;
- my $targetsid = $self->{opts}->{targetstorage} ? $self->{opts}->{targetstorage} : $storeid;
-
+ my $targetsid = PVE::QemuServer::map_storage($self->{opts}->{storagemap}, $storeid);
# check if storage is available on target node
- PVE::Storage::storage_check_node($self->{storecfg}, $targetsid, $self->{node});
- $sharedvm = 0; # there is a non-shared disk
+ PVE::Storage::storage_check_node($storecfg, $targetsid, $self->{node});
+
+ # grandfather in existing mismatches
+ if ($targetsid ne $storeid) {
+ my $target_scfg = PVE::Storage::storage_config($storecfg, $targetsid);
+ die "content type 'images' is not available on storage '$targetsid'\n"
+ if !$target_scfg->{content}->{images};
+ }
PVE::Storage::foreach_volid($dl, sub {
- my ($volid, $sid, $volname) = @_;
+ my ($volid, $sid, $volinfo) = @_;
$local_volumes->{$volid}->{ref} = 'storage';
+
+ # If with_snapshots is not set for storage migrate, it tries to use
+ # a raw+size stream, but on-the-fly conversion from qcow2 to raw+size
+ # back to qcow2 is currently not possible.
+ $local_volumes->{$volid}->{snapshots} = ($volinfo->{format} =~ /^(?:qcow2|vmdk)$/);
+ $local_volumes->{$volid}->{format} = $volinfo->{format};
});
}
+ my $rep_cfg = PVE::ReplicationConfig->new();
+ my $replication_jobcfg = $rep_cfg->find_local_replication_job($vmid, $self->{node});
+ my $replicatable_volumes = !$replication_jobcfg ? {}
+ : PVE::QemuConfig->get_replicatable_volumes($storecfg, $vmid, $conf, 0, 1);
+
my $test_volid = sub {
my ($volid, $attr) = @_;
my ($sid, $volname) = PVE::Storage::parse_volume_id($volid);
- my $targetsid = $self->{opts}->{targetstorage} ? $self->{opts}->{targetstorage} : $sid;
+ my $targetsid = PVE::QemuServer::map_storage($self->{opts}->{storagemap}, $sid);
# check if storage is available on both nodes
- my $scfg = PVE::Storage::storage_check_node($self->{storecfg}, $sid);
- PVE::Storage::storage_check_node($self->{storecfg}, $targetsid, $self->{node});
+ my $scfg = PVE::Storage::storage_check_node($storecfg, $sid);
+ PVE::Storage::storage_check_node($storecfg, $targetsid, $self->{node});
return if $scfg->{shared};
- $sharedvm = 0;
-
$local_volumes->{$volid}->{ref} = $attr->{referenced_in_config} ? 'config' : 'snapshot';
+ $local_volumes->{$volid}->{ref} = 'storage' if $attr->{is_unused};
+
+ $local_volumes->{$volid}->{is_vmstate} = $attr->{is_vmstate} ? 1 : 0;
- die "local cdrom image\n" if $attr->{cdrom};
+ if ($attr->{cdrom}) {
+ if ($volid =~ /vm-\d+-cloudinit/) {
+ $local_volumes->{$volid}->{ref} = 'generated';
+ return;
+ }
+ die "local cdrom image\n";
+ }
- my ($path, $owner) = PVE::Storage::path($self->{storecfg}, $volid);
+ my ($path, $owner) = PVE::Storage::path($storecfg, $volid);
die "owned by other VM (owner = VM $owner)\n"
- if !$owner || ($owner != $self->{vmid});
+ if !$owner || ($owner != $vmid);
+
+ return if $attr->{is_vmstate};
- my $format = PVE::QemuServer::qemu_img_format($scfg, $volname);
- $local_volumes->{$volid}->{snapshots} = defined($snaprefs) || ($format =~ /^(?:qcow2|vmdk)$/);
if (defined($snaprefs)) {
+ $local_volumes->{$volid}->{snapshots} = 1;
+
# we cannot migrate shapshots on local storage
# exceptions: 'zfspool' or 'qcow2' files (on directory storage)
die "online storage migration not possible if snapshot exists\n" if $self->{running};
- if (!($scfg->{type} eq 'zfspool' || $format eq 'qcow2')) {
+ if (!($scfg->{type} eq 'zfspool' || $local_volumes->{$volid}->{format} eq 'qcow2')) {
die "non-migratable snapshot exists\n";
}
}
die "referenced by linked clone(s)\n"
- if PVE::Storage::volume_is_base_and_used($self->{storecfg}, $volid);
+ if PVE::Storage::volume_is_base_and_used($storecfg, $volid);
};
PVE::QemuServer::foreach_volid($conf, sub {
});
foreach my $vol (sort keys %$local_volumes) {
+ my $type = $replicatable_volumes->{$vol} ? 'local, replicated' : 'local';
my $ref = $local_volumes->{$vol}->{ref};
if ($ref eq 'storage') {
- $self->log('info', "found local disk '$vol' (via storage)\n");
+ $self->log('info', "found $type disk '$vol' (via storage)\n");
} elsif ($ref eq 'config') {
&$log_error("can't live migrate attached local disks without with-local-disks option\n", $vol)
if $self->{running} && !$self->{opts}->{"with-local-disks"};
- $self->log('info', "found local disk '$vol' (in current VM config)\n");
+ $self->log('info', "found $type disk '$vol' (in current VM config)\n");
} elsif ($ref eq 'snapshot') {
- $self->log('info', "found local disk '$vol' (referenced by snapshot(s))\n");
+ $self->log('info', "found $type disk '$vol' (referenced by snapshot(s))\n");
+ } elsif ($ref eq 'generated') {
+ $self->log('info', "found generated disk '$vol' (in current VM config)\n");
} else {
- $self->log('info', "found local disk '$vol'\n");
+ $self->log('info', "found $type disk '$vol'\n");
}
}
$self->log('warn', "$err");
}
- if ($self->{running} && !$sharedvm && !$self->{opts}->{targetstorage}) {
- $self->{opts}->{targetstorage} = 1; #use same sid for remote local
- }
-
if ($abort) {
die "can't migrate VM - check log\n";
}
# additional checks for local storage
foreach my $volid (keys %$local_volumes) {
my ($sid, $volname) = PVE::Storage::parse_volume_id($volid);
- my $scfg = PVE::Storage::storage_config($self->{storecfg}, $sid);
+ my $scfg = PVE::Storage::storage_config($storecfg, $sid);
- my $migratable = ($scfg->{type} eq 'dir') || ($scfg->{type} eq 'zfspool') ||
- ($scfg->{type} eq 'lvmthin') || ($scfg->{type} eq 'lvm');
+ my $migratable = $scfg->{type} =~ /^(?:dir|zfspool|lvmthin|lvm)$/;
die "can't migrate '$volid' - storage type '$scfg->{type}' not supported\n"
if !$migratable;
# image is a linked clone on local storage, se we can't migrate.
- if (my $basename = (PVE::Storage::parse_volname($self->{storecfg}, $volid))[3]) {
+ if (my $basename = (PVE::Storage::parse_volname($storecfg, $volid))[3]) {
die "can't migrate '$volid' as it's a clone of '$basename'";
}
}
- my $rep_volumes;
+ if ($replication_jobcfg) {
+ if ($self->{running}) {
- $self->log('info', "copying disk images");
+ my $version = PVE::QemuServer::kvm_user_version();
+ if (!min_version($version, 4, 2)) {
+ die "can't live migrate VM with replicated volumes, pve-qemu to old (< 4.2)!\n"
+ }
- my $rep_cfg = PVE::ReplicationConfig->new();
+ my $live_replicatable_volumes = {};
+ PVE::QemuConfig->foreach_volume($conf, sub {
+ my ($ds, $drive) = @_;
+
+ my $volid = $drive->{file};
+ $live_replicatable_volumes->{$ds} = $volid
+ if defined($replicatable_volumes->{$volid});
+ });
+ foreach my $drive (keys %$live_replicatable_volumes) {
+ my $volid = $live_replicatable_volumes->{$drive};
+
+ my $bitmap = "repl_$drive";
+
+ # start tracking before replication to get full delta + a few duplicates
+ $self->log('info', "$drive: start tracking writes using block-dirty-bitmap '$bitmap'");
+ mon_cmd($vmid, 'block-dirty-bitmap-add', node => "drive-$drive", name => $bitmap);
+
+ # other info comes from target node in phase 2
+ $self->{target_drive}->{$drive}->{bitmap} = $bitmap;
+ }
+ }
+ $self->log('info', "replicating disk images");
- if (my $jobcfg = $rep_cfg->find_local_replication_job($vmid, $self->{node})) {
- die "can't live migrate VM with replicated volumes\n" if $self->{running};
my $start_time = time();
- my $logfunc = sub { my ($msg) = @_; $self->log('info', $msg); };
- $rep_volumes = PVE::Replication::run_replication(
- 'PVE::QemuConfig', $jobcfg, $start_time, $start_time, $logfunc);
- $self->{replicated_volumes} = $rep_volumes;
+ my $logfunc = sub { $self->log('info', shift) };
+ $self->{replicated_volumes} = PVE::Replication::run_replication(
+ 'PVE::QemuConfig', $replication_jobcfg, $start_time, $start_time, $logfunc);
+ }
+
+ # sizes in config have to be accurate for remote node to correctly
+ # allocate disks, rescan to be sure
+ my $volid_hash = PVE::QemuServer::scan_volids($storecfg, $vmid);
+ PVE::QemuConfig->foreach_volume($conf, sub {
+ my ($key, $drive) = @_;
+ my ($updated, $old_size, $new_size) = PVE::QemuServer::Drive::update_disksize($drive, $volid_hash);
+ if (defined($updated)) {
+ $conf->{$key} = PVE::QemuServer::print_drive($updated);
+ $self->log('info', "size of disk '$updated->{file}' ($key) updated from $old_size to $new_size\n");
+ }
+ });
+
+ # we want to set the efidisk size in the config to the size of the
+ # real OVMF_VARS.fd image, else we can create a too big image, which does not work
+ if (defined($conf->{efidisk0})) {
+ PVE::QemuServer::update_efidisk_size($conf);
}
+ $self->log('info', "copying local disk images") if scalar(%$local_volumes);
+
foreach my $volid (keys %$local_volumes) {
my ($sid, $volname) = PVE::Storage::parse_volume_id($volid);
- if ($self->{running} && $self->{opts}->{targetstorage} && $local_volumes->{$volid}->{ref} eq 'config') {
+ my $targetsid = PVE::QemuServer::map_storage($self->{opts}->{storagemap}, $sid);
+ my $ref = $local_volumes->{$volid}->{ref};
+ if ($self->{running} && $ref eq 'config') {
push @{$self->{online_local_volumes}}, $volid;
+ } elsif ($ref eq 'generated') {
+ die "can't live migrate VM with local cloudinit disk. use a shared storage instead\n" if $self->{running};
+ # skip all generated volumes but queue them for deletion in phase3_cleanup
+ push @{$self->{volumes}}, $volid;
+ next;
} else {
- next if $rep_volumes->{$volid};
+ next if $self->{replicated_volumes}->{$volid};
push @{$self->{volumes}}, $volid;
- my $insecure = $self->{opts}->{migration_type} eq 'insecure';
- my $with_snapshots = $local_volumes->{$volid}->{snapshots};
- PVE::Storage::storage_migrate($self->{storecfg}, $volid, $self->{ssh_info}, $sid,
- undef, undef, undef, undef, $insecure, $with_snapshots);
+ my $opts = $self->{opts};
+ # use 'migrate' limit for transfer to other node
+ my $bwlimit = PVE::Storage::get_bandwidth_limit('migration', [$targetsid, $sid], $opts->{bwlimit});
+ # JSONSchema and get_bandwidth_limit use kbps - storage_migrate bps
+ $bwlimit = $bwlimit * 1024 if defined($bwlimit);
+
+ my $storage_migrate_opts = {
+ 'bwlimit' => $bwlimit,
+ 'insecure' => $opts->{migration_type} eq 'insecure',
+ 'with_snapshots' => $local_volumes->{$volid}->{snapshots},
+ 'allow_rename' => !$local_volumes->{$volid}->{is_vmstate},
+ };
+
+ my $logfunc = sub { $self->log('info', $_[0]); };
+ my $new_volid = eval {
+ PVE::Storage::storage_migrate($storecfg, $volid, $self->{ssh_info},
+ $targetsid, $storage_migrate_opts, $logfunc);
+ };
+ if (my $err = $@) {
+ die "storage migration for '$volid' to storage '$targetsid' failed - $err\n";
+ }
+
+ $self->{volume_map}->{$volid} = $new_volid;
+ $self->log('info', "volume '$volid' is '$new_volid' on the target\n");
}
}
};
my ($self) = @_;
foreach my $target_drive (keys %{$self->{target_drive}}) {
+ my $drivestr = $self->{target_drive}->{$target_drive}->{drivestr};
+ next if !defined($drivestr);
+
+ my $drive = PVE::QemuServer::parse_drive($target_drive, $drivestr);
+
+ # don't clean up replicated disks!
+ next if defined($self->{replicated_volumes}->{$drive->{file}});
- my $drive = PVE::QemuServer::parse_drive($target_drive, $self->{target_drive}->{$target_drive}->{volid});
my ($storeid, $volname) = PVE::Storage::parse_volume_id($drive->{file});
my $cmd = [@{$self->{rem_ssh}}, 'pvesm', 'free', "$storeid:$volname"];
}
}
+sub cleanup_bitmaps {
+ my ($self) = @_;
+ foreach my $drive (keys %{$self->{target_drive}}) {
+ my $bitmap = $self->{target_drive}->{$drive}->{bitmap};
+ next if !$bitmap;
+ $self->log('info', "$drive: removing block-dirty-bitmap '$bitmap'");
+ mon_cmd($self->{vmid}, 'block-dirty-bitmap-remove', node => "drive-$drive", name => $bitmap);
+ }
+}
+
sub phase1 {
my ($self, $vmid) = @_;
sync_disks($self, $vmid);
+ # sync_disks fixes disk sizes to match their actual size, write changes so
+ # target allocates correct volumes
+ PVE::QemuConfig->write_config($vmid, $conf);
};
sub phase1_cleanup {
# fixme: try to remove ?
}
}
+
+ eval { $self->cleanup_bitmaps() };
+ if (my $err =$@) {
+ $self->log('err', $err);
+ }
+
}
sub phase2 {
my $spice_ticket;
if (PVE::QemuServer::vga_conf_has_spice($conf->{vga})) {
- my $res = PVE::QemuServer::vm_mon_cmd($vmid, 'query-spice');
+ my $res = mon_cmd($vmid, 'query-spice');
$spice_ticket = $res->{ticket};
}
push @$cmd, '--machine', $self->{forcemachine};
}
- if ($self->{opts}->{targetstorage}) {
- push @$cmd, '--targetstorage', $self->{opts}->{targetstorage};
+ if ($self->{forcecpu}) {
+ push @$cmd, '--force-cpu', $self->{forcecpu};
+ }
+
+ if ($self->{online_local_volumes}) {
+ push @$cmd, '--targetstorage', ($self->{opts}->{targetstorage} // '1');
}
my $spice_port;
+ my $tunnel_addr = [];
+ my $sock_addr = [];
+ # version > 0 for unix socket support
+ my $nbd_protocol_version = 1;
+ # TODO change to 'spice_ticket: <ticket>\n' in 7.0
+ my $input = $spice_ticket ? "$spice_ticket\n" : "\n";
+ $input .= "nbd_protocol_version: $nbd_protocol_version\n";
+
+ my $number_of_online_replicated_volumes = 0;
+ foreach my $volid (@{$self->{online_local_volumes}}) {
+ next if !$self->{replicated_volumes}->{$volid};
+ $number_of_online_replicated_volumes++;
+ $input .= "replicated_volume: $volid\n";
+ }
+
+ my $target_replicated_volumes = {};
# Note: We try to keep $spice_ticket secret (do not pass via command line parameter)
# instead we pipe it through STDIN
- PVE::Tools::run_command($cmd, input => $spice_ticket, outfunc => sub {
+ my $exitcode = PVE::Tools::run_command($cmd, input => $input, outfunc => sub {
my $line = shift;
if ($line =~ m/^migration listens on tcp:(localhost|[\d\.]+|\[[\d\.:a-fA-F]+\]):(\d+)$/) {
$rport = int($1);
$ruri = "tcp:$raddr:$rport";
}
- elsif ($line =~ m/^spice listens on port (\d+)$/) {
+ elsif ($line =~ m/^spice listens on port (\d+)$/) {
$spice_port = int($1);
}
- elsif ($line =~ m/^storage migration listens on nbd:(localhost|[\d\.]+|\[[\d\.:a-fA-F]+\]):(\d+):exportname=(\S+) volume:(\S+)$/) {
- my $volid = $4;
+ elsif ($line =~ m/^storage migration listens on nbd:(localhost|[\d\.]+|\[[\d\.:a-fA-F]+\]):(\d+):exportname=(\S+) volume:(\S+)$/) {
+ my $drivestr = $4;
my $nbd_uri = "nbd:$1:$2:exportname=$3";
my $targetdrive = $3;
$targetdrive =~ s/drive-//g;
- $self->{target_drive}->{$targetdrive}->{volid} = $volid;
+ $self->{stopnbd} = 1;
+ $self->{target_drive}->{$targetdrive}->{drivestr} = $drivestr;
$self->{target_drive}->{$targetdrive}->{nbd_uri} = $nbd_uri;
+ } elsif ($line =~ m!^storage migration listens on nbd:unix:(/run/qemu-server/(\d+)_nbd\.migrate):exportname=(\S+) volume:(\S+)$!) {
+ my $drivestr = $4;
+ die "Destination UNIX socket's VMID does not match source VMID" if $vmid ne $2;
+ my $nbd_unix_addr = $1;
+ my $nbd_uri = "nbd:unix:$nbd_unix_addr:exportname=$3";
+ my $targetdrive = $3;
+ $targetdrive =~ s/drive-//g;
+ $self->{stopnbd} = 1;
+ $self->{target_drive}->{$targetdrive}->{drivestr} = $drivestr;
+ $self->{target_drive}->{$targetdrive}->{nbd_uri} = $nbd_uri;
+ push @$tunnel_addr, "$nbd_unix_addr:$nbd_unix_addr";
+ push @$sock_addr, $nbd_unix_addr;
+ } elsif ($line =~ m/^re-using replicated volume: (\S+) - (.*)$/) {
+ my $drive = $1;
+ my $volid = $2;
+ $target_replicated_volumes->{$volid} = $drive;
+ } elsif ($line =~ m/^QEMU: (.*)$/) {
+ $self->log('info', "[$self->{node}] $1\n");
}
}, errfunc => sub {
my $line = shift;
- $self->log('info', $line);
- });
+ $self->log('info', "[$self->{node}] $line");
+ }, noerr => 1);
+
+ die "remote command failed with exit code $exitcode\n" if $exitcode;
die "unable to detect remote migration address\n" if !$raddr;
+ if (scalar(keys %$target_replicated_volumes) != $number_of_online_replicated_volumes) {
+ die "number of replicated disks on source and target node do not match - target node too old?\n"
+ }
+
$self->log('info', "start remote tunnel");
if ($migration_type eq 'secure') {
if ($ruri =~ /^unix:/) {
unlink $raddr;
- $self->{tunnel} = $self->fork_tunnel("$raddr:$raddr");
- $self->{tunnel}->{sock_addr} = $raddr;
+ push @$tunnel_addr, "$raddr:$raddr";
+ $self->{tunnel} = $self->fork_tunnel($tunnel_addr);
+ push @$sock_addr, $raddr;
my $unix_socket_try = 0; # wait for the socket to become ready
- while (! -S $raddr) {
+ while ($unix_socket_try <= 100) {
$unix_socket_try++;
- if ($unix_socket_try > 100) {
- $self->{errors} = 1;
- $self->finish_tunnel($self->{tunnel});
- die "Timeout, migration socket $ruri did not get ready";
+ my $available = 0;
+ foreach my $sock (@$sock_addr) {
+ if (-S $sock) {
+ $available++;
+ }
+ }
+
+ if ($available == @$sock_addr) {
+ last;
}
usleep(50000);
}
+ if ($unix_socket_try > 100) {
+ $self->{errors} = 1;
+ $self->finish_tunnel($self->{tunnel});
+ die "Timeout, migration socket $ruri did not get ready";
+ }
} elsif ($ruri =~ /^tcp:/) {
my $tunnel_addr;
#fork tunnel for insecure migration, to send faster commands like resume
$self->{tunnel} = $self->fork_tunnel();
}
+ $self->{tunnel}->{sock_addr} = $sock_addr if (@$sock_addr);
my $start = time();
- if ($self->{opts}->{targetstorage} && defined($self->{online_local_volumes})) {
+ my $opt_bwlimit = $self->{opts}->{bwlimit};
+
+ if (defined($self->{online_local_volumes})) {
$self->{storage_migration} = 1;
$self->{storage_migration_jobs} = {};
$self->log('info', "starting storage migration");
die "The number of local disks does not match between the source and the destination.\n"
if (scalar(keys %{$self->{target_drive}}) != scalar @{$self->{online_local_volumes}});
foreach my $drive (keys %{$self->{target_drive}}){
- my $nbd_uri = $self->{target_drive}->{$drive}->{nbd_uri};
+ my $target = $self->{target_drive}->{$drive};
+ my $nbd_uri = $target->{nbd_uri};
+
+ my $source_drive = PVE::QemuServer::parse_drive($drive, $conf->{$drive});
+ my $target_drive = PVE::QemuServer::parse_drive($drive, $target->{drivestr});
+
+ my $source_volid = $source_drive->{file};
+ my $target_volid = $target_drive->{file};
+
+ my $source_sid = PVE::Storage::Plugin::parse_volume_id($source_volid);
+ my $target_sid = PVE::Storage::Plugin::parse_volume_id($target_volid);
+
+ my $bwlimit = PVE::Storage::get_bandwidth_limit('migration', [$source_sid, $target_sid], $opt_bwlimit);
+ my $bitmap = $target->{bitmap};
+
$self->log('info', "$drive: start migration to $nbd_uri");
- PVE::QemuServer::qemu_drive_mirror($vmid, $drive, $nbd_uri, $vmid, undef, $self->{storage_migration_jobs}, 1);
+ PVE::QemuServer::qemu_drive_mirror($vmid, $drive, $nbd_uri, $vmid, undef, $self->{storage_migration_jobs}, 'skip', undef, $bwlimit, $bitmap);
+
+ $self->{volume_map}->{$source_volid} = $target_volid;
+ $self->log('info', "volume '$source_volid' is '$target_volid' on the target\n");
}
}
# load_defaults
my $defaults = PVE::QemuServer::load_defaults();
- # always set migrate speed (overwrite kvm default of 32m)
- # we set a very hight default of 8192m which is basically unlimited
- my $migrate_speed = $defaults->{migrate_speed} || 8192;
- $migrate_speed = $conf->{migrate_speed} || $migrate_speed;
- $migrate_speed = $migrate_speed * 1048576;
- $self->log('info', "migrate_set_speed: $migrate_speed");
- eval {
- PVE::QemuServer::vm_mon_cmd_nocheck($vmid, "migrate_set_speed", value => int($migrate_speed));
- };
- $self->log('info', "migrate_set_speed error: $@") if $@;
-
- my $migrate_downtime = $defaults->{migrate_downtime};
- $migrate_downtime = $conf->{migrate_downtime} if defined($conf->{migrate_downtime});
- if (defined($migrate_downtime)) {
- $self->log('info', "migrate_set_downtime: $migrate_downtime");
- eval {
- PVE::QemuServer::vm_mon_cmd_nocheck($vmid, "migrate_set_downtime", value => int($migrate_downtime*100)/100);
- };
- $self->log('info', "migrate_set_downtime error: $@") if $@;
- }
-
$self->log('info', "set migration_caps");
eval {
PVE::QemuServer::set_migration_caps($vmid);
};
warn $@ if $@;
+ my $qemu_migrate_params = {};
+
+ # migrate speed can be set via bwlimit (datacenter.cfg and API) and via the
+ # migrate_speed parameter in qm.conf - take the lower of the two.
+ my $bwlimit = PVE::Storage::get_bandwidth_limit('migration', undef, $opt_bwlimit) // 0;
+ my $migrate_speed = $conf->{migrate_speed} // $bwlimit;
+ # migrate_speed is in MB/s, bwlimit in KB/s
+ $migrate_speed *= 1024;
+
+ $migrate_speed = ($bwlimit < $migrate_speed) ? $bwlimit : $migrate_speed;
+
+ # always set migrate speed (overwrite kvm default of 32m) we set a very high
+ # default of 8192m which is basically unlimited
+ $migrate_speed ||= ($defaults->{migrate_speed} || 8192) * 1024;
+
+ # qmp takes migrate_speed in B/s.
+ $migrate_speed *= 1024;
+ $self->log('info', "migration speed limit: $migrate_speed B/s");
+ $qemu_migrate_params->{'max-bandwidth'} = int($migrate_speed);
+
+ my $migrate_downtime = $defaults->{migrate_downtime};
+ $migrate_downtime = $conf->{migrate_downtime} if defined($conf->{migrate_downtime});
+ # migrate-set-parameters expects limit in ms
+ $migrate_downtime *= 1000;
+ $self->log('info', "migration downtime limit: $migrate_downtime ms");
+ $qemu_migrate_params->{'downtime-limit'} = int($migrate_downtime);
+
# set cachesize to 10% of the total memory
my $memory = $conf->{memory} || $defaults->{memory};
my $cachesize = int($memory * 1048576 / 10);
$cachesize = round_powerof2($cachesize);
- $self->log('info', "set cachesize: $cachesize");
+ $self->log('info', "migration cachesize: $cachesize B");
+ $qemu_migrate_params->{'xbzrle-cache-size'} = int($cachesize);
+
+ $self->log('info', "set migration parameters");
eval {
- PVE::QemuServer::vm_mon_cmd_nocheck($vmid, "migrate-set-cache-size", value => int($cachesize));
+ mon_cmd($vmid, "migrate-set-parameters", %{$qemu_migrate_params});
};
- $self->log('info', "migrate-set-cache-size error: $@") if $@;
+ $self->log('info', "migrate-set-parameters error: $@") if $@;
if (PVE::QemuServer::vga_conf_has_spice($conf->{vga})) {
my $rpcenv = PVE::RPCEnvironment::get();
my (undef, $proxyticket) = PVE::AccessControl::assemble_spice_ticket($authuser, $vmid, $self->{node});
my $filename = "/etc/pve/nodes/$self->{node}/pve-ssl.pem";
- my $subject = PVE::AccessControl::read_x509_subject_spice($filename);
+ my $subject = PVE::AccessControl::read_x509_subject_spice($filename);
$self->log('info', "spice client_migrate_info");
eval {
- PVE::QemuServer::vm_mon_cmd_nocheck($vmid, "client_migrate_info", protocol => 'spice',
- hostname => $proxyticket, 'tls-port' => $spice_port,
+ mon_cmd($vmid, "client_migrate_info", protocol => 'spice',
+ hostname => $proxyticket, 'port' => 0, 'tls-port' => $spice_port,
'cert-subject' => $subject);
};
$self->log('info', "client_migrate_info error: $@") if $@;
$self->log('info', "start migrate command to $ruri");
eval {
- PVE::QemuServer::vm_mon_cmd_nocheck($vmid, "migrate", uri => $ruri);
+ mon_cmd($vmid, "migrate", uri => $ruri);
};
my $merr = $@;
$self->log('info', "migrate uri => $ruri failed: $merr") if $merr;
usleep($usleep);
my $stat;
eval {
- $stat = PVE::QemuServer::vm_mon_cmd_nocheck($vmid, "query-migrate");
+ $stat = mon_cmd($vmid, "query-migrate");
};
if (my $err = $@) {
$err_count++;
if ($downtimecounter > 5) {
$downtimecounter = 0;
$migrate_downtime *= 2;
- $self->log('info', "migrate_set_downtime: $migrate_downtime");
+ $self->log('info', "auto-increased downtime to continue migration: $migrate_downtime ms");
eval {
- PVE::QemuServer::vm_mon_cmd_nocheck($vmid, "migrate_set_downtime", value => int($migrate_downtime*100)/100);
+ # migrate-set-parameters does not touch values not
+ # specified, so this only changes downtime-limit
+ mon_cmd($vmid, "migrate-set-parameters", 'downtime-limit' => int($migrate_downtime));
};
- $self->log('info', "migrate_set_downtime error: $@") if $@;
+ $self->log('info', "migrate-set-parameters error: $@") if $@;
}
}
$lstat = $stat->{ram}->{transferred};
-
+
} else {
die $merr if $merr;
die "unable to parse migration status '$stat->{status}' - aborting\n";
$self->log('info', "migrate_cancel");
eval {
- PVE::QemuServer::vm_mon_cmd_nocheck($vmid, "migrate_cancel");
+ mon_cmd($vmid, "migrate_cancel");
};
$self->log('info', "migrate_cancel error: $@") if $@;
# cleanup ressources on target host
if ($self->{storage_migration}) {
-
eval { PVE::QemuServer::qemu_blockjobs_cancel($vmid, $self->{storage_migration_jobs}) };
if (my $err = $@) {
$self->log('err', $err);
}
+ }
- eval { PVE::QemuMigrate::cleanup_remotedisks($self) };
- if (my $err = $@) {
- $self->log('err', $err);
- }
+ eval { $self->cleanup_bitmaps() };
+ if (my $err =$@) {
+ $self->log('err', $err);
}
my $nodename = PVE::INotify::nodename();
-
+
my $cmd = [@{$self->{rem_ssh}}, 'qm', 'stop', $vmid, '--skiplock', '--migratedfrom', $nodename];
eval{ PVE::Tools::run_command($cmd, outfunc => sub {}, errfunc => sub {}) };
if (my $err = $@) {
$self->{errors} = 1;
}
+ # cleanup after stopping, otherwise disks might be in-use by target VM!
+ eval { PVE::QemuMigrate::cleanup_remotedisks($self) };
+ if (my $err = $@) {
+ $self->log('err', $err);
+ }
+
+
if ($self->{tunnel}) {
eval { finish_tunnel($self, $self->{tunnel}); };
if (my $err = $@) {
my $tunnel = $self->{tunnel};
if ($self->{storage_migration}) {
- # finish block-job
- eval { PVE::QemuServer::qemu_drive_mirror_monitor($vmid, undef, $self->{storage_migration_jobs}); };
+ # finish block-job with block-job-cancel, to disconnect source VM from NBD
+ # to avoid it trying to re-establish it. We are in blockjob ready state,
+ # thus, this command changes to it to blockjob complete (see qapi docs)
+ eval { PVE::QemuServer::qemu_drive_mirror_monitor($vmid, undef, $self->{storage_migration_jobs}, 'cancel'); };
if (my $err = $@) {
eval { PVE::QemuServer::qemu_blockjobs_cancel($vmid, $self->{storage_migration_jobs}) };
eval { PVE::QemuMigrate::cleanup_remotedisks($self) };
- die "Failed to completed storage migration\n";
- } else {
- foreach my $target_drive (keys %{$self->{target_drive}}) {
- my $drive = PVE::QemuServer::parse_drive($target_drive, $self->{target_drive}->{$target_drive}->{volid});
- $conf->{$target_drive} = PVE::QemuServer::print_drive($vmid, $drive);
- PVE::QemuConfig->write_config($vmid, $conf);
- }
+ die "Failed to complete storage migration: $err\n";
+ }
+ }
+
+ if ($self->{volume_map}) {
+ my $target_drives = $self->{target_drive};
+
+ # FIXME: for NBD storage migration we now only update the volid, and
+ # not the full drivestr from the target node. Workaround that until we
+ # got some real rescan, to avoid things like wrong format in the drive
+ delete $conf->{$_} for keys %$target_drives;
+ PVE::QemuConfig->update_volume_ids($conf, $self->{volume_map});
+
+ for my $drive (keys %$target_drives) {
+ $conf->{$drive} = $target_drives->{$drive}->{drivestr};
}
+ PVE::QemuConfig->write_config($vmid, $conf);
}
# transfer replication state before move config
$self->switch_replication_job_target() if $self->{replicated_volumes};
if ($self->{livemigration}) {
- if ($self->{storage_migration}) {
+ if ($self->{stopnbd}) {
+ $self->log('info', "stopping NBD storage migration server on target.");
# stop nbd server on remote vm - requirement for resume since 2.9
my $cmd = [@{$self->{rem_ssh}}, 'qm', 'nbdstop', $vmid];
if (PVE::QemuServer::vga_conf_has_spice($conf->{vga}) && $self->{running}) {
$self->log('info', "Waiting for spice server migration");
while (1) {
- my $res = PVE::QemuServer::vm_mon_cmd_nocheck($vmid, 'query-spice');
+ my $res = mon_cmd($vmid, 'query-spice');
last if int($res->{'migrated'}) == 1;
last if $timer > 50;
$timer ++;
usleep(200000);
- }
+ }
}
};
my $volids = $self->{online_local_volumes};
foreach my $volid (@$volids) {
+ # keep replicated volumes!
+ next if $self->{replicated_volumes}->{$volid};
+
eval { PVE::Storage::vdisk_free($self->{storecfg}, $volid); };
if (my $err = $@) {
$self->log('err', "removing local copy of '$volid' failed - $err");
projects / qemu-server.git / blobdiff