mirror of
https://git.proxmox.com/git/qemu-server
synced 2025-11-04 07:58:10 +00:00
9c88e85446
Signed-off-by: Alexandre Derumier <aderumier@odiso.com> Reviewed-by: Fiona Ebner <f.ebner@proxmox.com>
1296 lines
41 KiB
Perl
1296 lines
41 KiB
Perl
package PVE::QemuMigrate;
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use strict;
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use warnings;
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use IO::File;
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use IPC::Open2;
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use POSIX qw( WNOHANG );
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use Time::HiRes qw( usleep );
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use PVE::Format qw(render_bytes);
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use PVE::Cluster;
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use PVE::GuestHelpers qw(safe_boolean_ne safe_string_ne);
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use PVE::INotify;
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use PVE::RPCEnvironment;
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use PVE::Replication;
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use PVE::ReplicationConfig;
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use PVE::ReplicationState;
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use PVE::Storage;
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use PVE::Tools;
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use PVE::Tunnel;
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use PVE::QemuConfig;
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use PVE::QemuServer::CPUConfig;
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use PVE::QemuServer::Drive;
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use PVE::QemuServer::Helpers qw(min_version);
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use PVE::QemuServer::Machine;
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use PVE::QemuServer::Monitor qw(mon_cmd);
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use PVE::QemuServer;
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use PVE::AbstractMigrate;
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use base qw(PVE::AbstractMigrate);
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sub fork_tunnel {
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my ($self, $ssh_forward_info) = @_;
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my $cmd = ['/usr/sbin/qm', 'mtunnel'];
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my $log = sub {
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my ($level, $msg) = @_;
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$self->log($level, $msg);
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};
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return PVE::Tunnel::fork_ssh_tunnel($self->{rem_ssh}, $cmd, $ssh_forward_info, $log);
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}
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sub start_remote_tunnel {
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my ($self, $raddr, $rport, $ruri, $unix_socket_info) = @_;
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my $nodename = PVE::INotify::nodename();
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my $migration_type = $self->{opts}->{migration_type};
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if ($migration_type eq 'secure') {
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if ($ruri =~ /^unix:/) {
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my $ssh_forward_info = ["$raddr:$raddr"];
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$unix_socket_info->{$raddr} = 1;
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my $unix_sockets = [ keys %$unix_socket_info ];
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for my $sock (@$unix_sockets) {
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push @$ssh_forward_info, "$sock:$sock";
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unlink $sock;
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}
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$self->{tunnel} = $self->fork_tunnel($ssh_forward_info);
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my $unix_socket_try = 0; # wait for the socket to become ready
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while ($unix_socket_try <= 100) {
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$unix_socket_try++;
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my $available = 0;
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foreach my $sock (@$unix_sockets) {
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if (-S $sock) {
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$available++;
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}
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}
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if ($available == @$unix_sockets) {
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last;
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}
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usleep(50000);
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}
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if ($unix_socket_try > 100) {
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$self->{errors} = 1;
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PVE::Tunnel::finish_tunnel($self->{tunnel});
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die "Timeout, migration socket $ruri did not get ready";
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}
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$self->{tunnel}->{unix_sockets} = $unix_sockets if (@$unix_sockets);
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} elsif ($ruri =~ /^tcp:/) {
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my $ssh_forward_info = [];
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if ($raddr eq "localhost") {
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# for backwards compatibility with older qemu-server versions
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my $pfamily = PVE::Tools::get_host_address_family($nodename);
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my $lport = PVE::Tools::next_migrate_port($pfamily);
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push @$ssh_forward_info, "$lport:localhost:$rport";
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}
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$self->{tunnel} = $self->fork_tunnel($ssh_forward_info);
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} else {
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die "unsupported protocol in migration URI: $ruri\n";
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}
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} else {
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#fork tunnel for insecure migration, to send faster commands like resume
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$self->{tunnel} = $self->fork_tunnel();
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}
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}
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sub lock_vm {
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my ($self, $vmid, $code, @param) = @_;
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return PVE::QemuConfig->lock_config($vmid, $code, @param);
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}
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sub prepare {
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my ($self, $vmid) = @_;
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my $online = $self->{opts}->{online};
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my $storecfg = $self->{storecfg} = PVE::Storage::config();
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# test if VM exists
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my $conf = $self->{vmconf} = PVE::QemuConfig->load_config($vmid);
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my $version = PVE::QemuServer::Helpers::get_node_pvecfg_version($self->{node});
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my $cloudinit_config = $conf->{cloudinit};
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if (defined($cloudinit_config) && keys %$cloudinit_config &&
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!PVE::QemuServer::Helpers::pvecfg_min_version($version, 7, 2, 5)) {
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die "target node is too old and doesn't support new cloudinit section\n";
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}
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my $repl_conf = PVE::ReplicationConfig->new();
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$self->{replication_jobcfg} = $repl_conf->find_local_replication_job($vmid, $self->{node});
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$self->{is_replicated} = $repl_conf->check_for_existing_jobs($vmid, 1);
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if ($self->{replication_jobcfg} && defined($self->{replication_jobcfg}->{remove_job})) {
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die "refusing to migrate replicated VM whose replication job is marked for removal\n";
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}
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PVE::QemuConfig->check_lock($conf);
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my $running = 0;
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if (my $pid = PVE::QemuServer::check_running($vmid)) {
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die "can't migrate running VM without --online\n" if !$online;
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$running = $pid;
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if ($self->{is_replicated} && !$self->{replication_jobcfg}) {
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if ($self->{opts}->{force}) {
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$self->log('warn', "WARNING: Node '$self->{node}' is not a replication target. Existing " .
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"replication jobs will fail after migration!\n");
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} else {
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die "Cannot live-migrate replicated VM to node '$self->{node}' - not a replication " .
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"target. Use 'force' to override.\n";
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}
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}
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$self->{forcemachine} = PVE::QemuServer::Machine::qemu_machine_pxe($vmid, $conf);
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# To support custom CPU types, we keep QEMU's "-cpu" parameter intact.
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# Since the parameter itself contains no reference to a custom model,
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# this makes migration independent of changes to "cpu-models.conf".
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if ($conf->{cpu}) {
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my $cpuconf = PVE::JSONSchema::parse_property_string('pve-cpu-conf', $conf->{cpu});
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if ($cpuconf && PVE::QemuServer::CPUConfig::is_custom_model($cpuconf->{cputype})) {
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$self->{forcecpu} = PVE::QemuServer::CPUConfig::get_cpu_from_running_vm($pid);
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}
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}
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$self->{vm_was_paused} = 1 if PVE::QemuServer::vm_is_paused($vmid);
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}
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my $loc_res = PVE::QemuServer::check_local_resources($conf, 1);
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if (scalar @$loc_res) {
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if ($self->{running} || !$self->{opts}->{force}) {
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die "can't migrate VM which uses local devices: " . join(", ", @$loc_res) . "\n";
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} else {
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$self->log('info', "migrating VM which uses local devices");
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}
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}
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my $vollist = PVE::QemuServer::get_vm_volumes($conf);
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foreach my $volid (@$vollist) {
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my ($sid, $volname) = PVE::Storage::parse_volume_id($volid, 1);
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# check if storage is available on both nodes
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my $scfg = PVE::Storage::storage_check_enabled($storecfg, $sid);
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my $targetsid = $sid;
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# NOTE: we currently ignore shared source storages in mappings so skip here too for now
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if (!$scfg->{shared}) {
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$targetsid = PVE::JSONSchema::map_id($self->{opts}->{storagemap}, $sid);
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}
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my $target_scfg = PVE::Storage::storage_check_enabled($storecfg, $targetsid, $self->{node});
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my ($vtype) = PVE::Storage::parse_volname($storecfg, $volid);
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die "$volid: content type '$vtype' is not available on storage '$targetsid'\n"
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if !$target_scfg->{content}->{$vtype};
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if ($scfg->{shared}) {
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# PVE::Storage::activate_storage checks this for non-shared storages
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my $plugin = PVE::Storage::Plugin->lookup($scfg->{type});
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warn "Used shared storage '$sid' is not online on source node!\n"
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if !$plugin->check_connection($sid, $scfg);
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}
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}
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# test ssh connection
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my $cmd = [ @{$self->{rem_ssh}}, '/bin/true' ];
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eval { $self->cmd_quiet($cmd); };
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die "Can't connect to destination address using public key\n" if $@;
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return $running;
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}
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sub scan_local_volumes {
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my ($self, $vmid) = @_;
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my $conf = $self->{vmconf};
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# local volumes which have been copied
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# and their old_id => new_id pairs
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$self->{volume_map} = {};
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$self->{local_volumes} = {};
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my $storecfg = $self->{storecfg};
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eval {
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# found local volumes and their origin
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my $local_volumes = $self->{local_volumes};
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my $local_volumes_errors = {};
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my $other_errors = [];
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my $abort = 0;
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my $log_error = sub {
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my ($msg, $volid) = @_;
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if (defined($volid)) {
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$local_volumes_errors->{$volid} = $msg;
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} else {
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push @$other_errors, $msg;
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}
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$abort = 1;
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};
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my @sids = PVE::Storage::storage_ids($storecfg);
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foreach my $storeid (@sids) {
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my $scfg = PVE::Storage::storage_config($storecfg, $storeid);
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next if $scfg->{shared};
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next if !PVE::Storage::storage_check_enabled($storecfg, $storeid, undef, 1);
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# get list from PVE::Storage (for unused volumes)
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my $dl = PVE::Storage::vdisk_list($storecfg, $storeid, $vmid, undef, 'images');
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next if @{$dl->{$storeid}} == 0;
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my $targetsid = PVE::JSONSchema::map_id($self->{opts}->{storagemap}, $storeid);
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# check if storage is available on target node
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my $target_scfg = PVE::Storage::storage_check_enabled(
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$storecfg,
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$targetsid,
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$self->{node},
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);
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die "content type 'images' is not available on storage '$targetsid'\n"
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if !$target_scfg->{content}->{images};
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my $bwlimit = PVE::Storage::get_bandwidth_limit(
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'migration',
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[$targetsid, $storeid],
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$self->{opts}->{bwlimit},
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);
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PVE::Storage::foreach_volid($dl, sub {
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my ($volid, $sid, $volinfo) = @_;
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$local_volumes->{$volid}->{ref} = 'storage';
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$local_volumes->{$volid}->{size} = $volinfo->{size};
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$local_volumes->{$volid}->{targetsid} = $targetsid;
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$local_volumes->{$volid}->{bwlimit} = $bwlimit;
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# If with_snapshots is not set for storage migrate, it tries to use
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# a raw+size stream, but on-the-fly conversion from qcow2 to raw+size
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# back to qcow2 is currently not possible.
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$local_volumes->{$volid}->{snapshots} = ($volinfo->{format} =~ /^(?:qcow2|vmdk)$/);
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$local_volumes->{$volid}->{format} = $volinfo->{format};
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});
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}
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my $replicatable_volumes = !$self->{replication_jobcfg} ? {}
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: PVE::QemuConfig->get_replicatable_volumes($storecfg, $vmid, $conf, 0, 1);
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foreach my $volid (keys %{$replicatable_volumes}) {
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$local_volumes->{$volid}->{replicated} = 1;
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}
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my $test_volid = sub {
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my ($volid, $attr) = @_;
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if ($volid =~ m|^/|) {
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return if $attr->{shared};
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$local_volumes->{$volid}->{ref} = 'config';
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die "local file/device\n";
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}
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my $snaprefs = $attr->{referenced_in_snapshot};
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if ($attr->{cdrom}) {
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if ($volid eq 'cdrom') {
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my $msg = "can't migrate local cdrom drive";
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if (defined($snaprefs) && !$attr->{referenced_in_config}) {
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my $snapnames = join(', ', sort keys %$snaprefs);
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$msg .= " (referenced in snapshot - $snapnames)";
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}
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&$log_error("$msg\n");
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return;
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}
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return if $volid eq 'none';
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}
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my ($sid, $volname) = PVE::Storage::parse_volume_id($volid);
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# check if storage is available on both nodes
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my $scfg = PVE::Storage::storage_check_enabled($storecfg, $sid);
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my $targetsid = $sid;
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# NOTE: we currently ignore shared source storages in mappings so skip here too for now
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if (!$scfg->{shared}) {
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$targetsid = PVE::JSONSchema::map_id($self->{opts}->{storagemap}, $sid);
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}
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PVE::Storage::storage_check_enabled($storecfg, $targetsid, $self->{node});
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return if $scfg->{shared};
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$local_volumes->{$volid}->{ref} = $attr->{referenced_in_config} ? 'config' : 'snapshot';
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$local_volumes->{$volid}->{ref} = 'storage' if $attr->{is_unused};
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$local_volumes->{$volid}->{ref} = 'generated' if $attr->{is_tpmstate};
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$local_volumes->{$volid}->{is_vmstate} = $attr->{is_vmstate} ? 1 : 0;
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$local_volumes->{$volid}->{drivename} = $attr->{drivename}
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if $attr->{drivename};
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if ($attr->{cdrom}) {
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if ($volid =~ /vm-\d+-cloudinit/) {
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$local_volumes->{$volid}->{ref} = 'generated';
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return;
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}
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die "local cdrom image\n";
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}
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my ($path, $owner) = PVE::Storage::path($storecfg, $volid);
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die "owned by other VM (owner = VM $owner)\n"
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if !$owner || ($owner != $vmid);
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return if $attr->{is_vmstate};
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if (defined($snaprefs)) {
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$local_volumes->{$volid}->{snapshots} = 1;
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# we cannot migrate shapshots on local storage
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# exceptions: 'zfspool' or 'qcow2' files (on directory storage)
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die "online storage migration not possible if snapshot exists\n" if $self->{running};
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if (!($scfg->{type} eq 'zfspool'
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|| ($scfg->{type} eq 'btrfs' && $local_volumes->{$volid}->{format} eq 'raw')
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|| $local_volumes->{$volid}->{format} eq 'qcow2'
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)) {
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die "non-migratable snapshot exists\n";
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}
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}
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die "referenced by linked clone(s)\n"
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if PVE::Storage::volume_is_base_and_used($storecfg, $volid);
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};
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PVE::QemuServer::foreach_volid($conf, sub {
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my ($volid, $attr) = @_;
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eval { $test_volid->($volid, $attr); };
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if (my $err = $@) {
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&$log_error($err, $volid);
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}
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});
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foreach my $vol (sort keys %$local_volumes) {
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my $type = $replicatable_volumes->{$vol} ? 'local, replicated' : 'local';
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my $ref = $local_volumes->{$vol}->{ref};
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if ($ref eq 'storage') {
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$self->log('info', "found $type disk '$vol' (via storage)\n");
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} elsif ($ref eq 'config') {
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&$log_error("can't live migrate attached local disks without with-local-disks option\n", $vol)
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if $self->{running} && !$self->{opts}->{"with-local-disks"};
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$self->log('info', "found $type disk '$vol' (in current VM config)\n");
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} elsif ($ref eq 'snapshot') {
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$self->log('info', "found $type disk '$vol' (referenced by snapshot(s))\n");
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} elsif ($ref eq 'generated') {
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$self->log('info', "found generated disk '$vol' (in current VM config)\n");
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} else {
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$self->log('info', "found $type disk '$vol'\n");
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}
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}
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foreach my $vol (sort keys %$local_volumes_errors) {
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$self->log('warn', "can't migrate local disk '$vol': $local_volumes_errors->{$vol}");
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}
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foreach my $err (@$other_errors) {
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$self->log('warn', "$err");
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}
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if ($abort) {
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die "can't migrate VM - check log\n";
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}
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# additional checks for local storage
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foreach my $volid (keys %$local_volumes) {
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my ($sid, $volname) = PVE::Storage::parse_volume_id($volid);
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my $scfg = PVE::Storage::storage_config($storecfg, $sid);
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my $migratable = $scfg->{type} =~ /^(?:dir|btrfs|zfspool|lvmthin|lvm)$/;
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die "can't migrate '$volid' - storage type '$scfg->{type}' not supported\n"
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if !$migratable;
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# image is a linked clone on local storage, se we can't migrate.
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if (my $basename = (PVE::Storage::parse_volname($storecfg, $volid))[3]) {
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die "can't migrate '$volid' as it's a clone of '$basename'";
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}
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}
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foreach my $volid (sort keys %$local_volumes) {
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my $ref = $local_volumes->{$volid}->{ref};
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if ($self->{running} && $ref eq 'config') {
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$local_volumes->{$volid}->{migration_mode} = 'online';
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} elsif ($self->{running} && $ref eq 'generated') {
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# offline migrate the cloud-init ISO and don't regenerate on VM start
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#
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# tpmstate will also be offline migrated first, and in case of
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# live migration then updated by QEMU/swtpm if necessary
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$local_volumes->{$volid}->{migration_mode} = 'offline';
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} else {
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$local_volumes->{$volid}->{migration_mode} = 'offline';
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}
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}
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};
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die "Problem found while scanning volumes - $@" if $@;
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}
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sub handle_replication {
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my ($self, $vmid) = @_;
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my $conf = $self->{vmconf};
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my $local_volumes = $self->{local_volumes};
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|
|
return if !$self->{replication_jobcfg};
|
|
if ($self->{running}) {
|
|
|
|
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 @live_replicatable_volumes = $self->filter_local_volumes('online', 1);
|
|
foreach my $volid (@live_replicatable_volumes) {
|
|
my $drive = $local_volumes->{$volid}->{drivename};
|
|
die "internal error - no drive for '$volid'\n" if !defined($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");
|
|
|
|
my $start_time = time();
|
|
my $logfunc = sub { $self->log('info', shift) };
|
|
my $actual_replicated_volumes = PVE::Replication::run_replication(
|
|
'PVE::QemuConfig', $self->{replication_jobcfg}, $start_time, $start_time, $logfunc);
|
|
|
|
# extra safety check
|
|
my @replicated_volumes = $self->filter_local_volumes(undef, 1);
|
|
foreach my $volid (@replicated_volumes) {
|
|
die "expected volume '$volid' to get replicated, but it wasn't\n"
|
|
if !$actual_replicated_volumes->{$volid};
|
|
}
|
|
}
|
|
|
|
sub config_update_local_disksizes {
|
|
my ($self) = @_;
|
|
|
|
my $conf = $self->{vmconf};
|
|
my $local_volumes = $self->{local_volumes};
|
|
|
|
PVE::QemuConfig->foreach_volume($conf, sub {
|
|
my ($key, $drive) = @_;
|
|
# skip special disks, will be handled later
|
|
return if $key eq 'efidisk0';
|
|
return if $key eq 'tpmstate0';
|
|
|
|
my $volid = $drive->{file};
|
|
return if !defined($local_volumes->{$volid}); # only update sizes for local volumes
|
|
|
|
my ($updated, $msg) = PVE::QemuServer::Drive::update_disksize($drive, $local_volumes->{$volid}->{size});
|
|
if (defined($updated)) {
|
|
$conf->{$key} = PVE::QemuServer::print_drive($updated);
|
|
$self->log('info', "drive '$key': $msg");
|
|
}
|
|
});
|
|
|
|
# we want to set the efidisk size in the config to the size of the
|
|
# real OVMF_VARS.fd image, else we can create a too big image, which does not work
|
|
if (defined($conf->{efidisk0})) {
|
|
PVE::QemuServer::update_efidisk_size($conf);
|
|
}
|
|
|
|
# TPM state might have an irregular filesize, to avoid problems on transfer
|
|
# we always assume the static size of 4M to allocate on the target
|
|
if (defined($conf->{tpmstate0})) {
|
|
PVE::QemuServer::update_tpmstate_size($conf);
|
|
}
|
|
}
|
|
|
|
sub filter_local_volumes {
|
|
my ($self, $migration_mode, $replicated) = @_;
|
|
|
|
my $volumes = $self->{local_volumes};
|
|
my @filtered_volids;
|
|
|
|
foreach my $volid (sort keys %{$volumes}) {
|
|
next if defined($migration_mode) && safe_string_ne($volumes->{$volid}->{migration_mode}, $migration_mode);
|
|
next if defined($replicated) && safe_boolean_ne($volumes->{$volid}->{replicated}, $replicated);
|
|
push @filtered_volids, $volid;
|
|
}
|
|
|
|
return @filtered_volids;
|
|
}
|
|
|
|
sub sync_offline_local_volumes {
|
|
my ($self) = @_;
|
|
|
|
my $local_volumes = $self->{local_volumes};
|
|
my @volids = $self->filter_local_volumes('offline', 0);
|
|
|
|
my $storecfg = $self->{storecfg};
|
|
my $opts = $self->{opts};
|
|
|
|
$self->log('info', "copying local disk images") if scalar(@volids);
|
|
|
|
foreach my $volid (@volids) {
|
|
my $targetsid = $local_volumes->{$volid}->{targetsid};
|
|
my $bwlimit = $local_volumes->{$volid}->{bwlimit};
|
|
$bwlimit = $bwlimit * 1024 if defined($bwlimit); # storage_migrate uses bps
|
|
|
|
my $storage_migrate_opts = {
|
|
'ratelimit_bps' => $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 '$new_volid' on the target\n");
|
|
|
|
eval { PVE::Storage::deactivate_volumes($storecfg, [$volid]); };
|
|
if (my $err = $@) {
|
|
$self->log('warn', $err);
|
|
}
|
|
}
|
|
}
|
|
|
|
sub cleanup_remotedisks {
|
|
my ($self) = @_;
|
|
|
|
my $local_volumes = $self->{local_volumes};
|
|
|
|
foreach my $volid (values %{$self->{volume_map}}) {
|
|
# don't clean up replicated disks!
|
|
next if $local_volumes->{$volid}->{replicated};
|
|
|
|
my ($storeid, $volname) = PVE::Storage::parse_volume_id($volid);
|
|
|
|
my $cmd = [@{$self->{rem_ssh}}, 'pvesm', 'free', "$storeid:$volname"];
|
|
|
|
eval{ PVE::Tools::run_command($cmd, outfunc => sub {}, errfunc => sub {}) };
|
|
if (my $err = $@) {
|
|
$self->log('err', $err);
|
|
$self->{errors} = 1;
|
|
}
|
|
}
|
|
}
|
|
|
|
sub cleanup_bitmaps {
|
|
my ($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) = @_;
|
|
|
|
$self->log('info', "starting migration of VM $vmid to node '$self->{node}' ($self->{nodeip})");
|
|
|
|
my $conf = $self->{vmconf};
|
|
|
|
# set migrate lock in config file
|
|
$conf->{lock} = 'migrate';
|
|
PVE::QemuConfig->write_config($vmid, $conf);
|
|
|
|
$self->scan_local_volumes($vmid);
|
|
|
|
# fix disk sizes to match their actual size and write changes,
|
|
# so that the target allocates the correct volumes
|
|
$self->config_update_local_disksizes();
|
|
PVE::QemuConfig->write_config($vmid, $conf);
|
|
|
|
$self->handle_replication($vmid);
|
|
|
|
$self->sync_offline_local_volumes();
|
|
};
|
|
|
|
sub phase1_cleanup {
|
|
my ($self, $vmid, $err) = @_;
|
|
|
|
$self->log('info', "aborting phase 1 - cleanup resources");
|
|
|
|
my $conf = $self->{vmconf};
|
|
delete $conf->{lock};
|
|
eval { PVE::QemuConfig->write_config($vmid, $conf) };
|
|
if (my $err = $@) {
|
|
$self->log('err', $err);
|
|
}
|
|
|
|
eval { $self->cleanup_remotedisks() };
|
|
if (my $err = $@) {
|
|
$self->log('err', $err);
|
|
}
|
|
|
|
eval { $self->cleanup_bitmaps() };
|
|
if (my $err =$@) {
|
|
$self->log('err', $err);
|
|
}
|
|
}
|
|
|
|
sub phase2 {
|
|
my ($self, $vmid) = @_;
|
|
|
|
my $conf = $self->{vmconf};
|
|
my $local_volumes = $self->{local_volumes};
|
|
my @online_local_volumes = $self->filter_local_volumes('online');
|
|
|
|
$self->{storage_migration} = 1 if scalar(@online_local_volumes);
|
|
|
|
$self->log('info', "starting VM $vmid on remote node '$self->{node}'");
|
|
|
|
my $raddr;
|
|
my $rport;
|
|
my $ruri; # the whole migration dst. URI (protocol:address[:port])
|
|
my $nodename = PVE::INotify::nodename();
|
|
|
|
## start on remote node
|
|
my $cmd = [@{$self->{rem_ssh}}];
|
|
|
|
my $spice_ticket;
|
|
if (PVE::QemuServer::vga_conf_has_spice($conf->{vga})) {
|
|
my $res = mon_cmd($vmid, 'query-spice');
|
|
$spice_ticket = $res->{ticket};
|
|
}
|
|
|
|
push @$cmd , 'qm', 'start', $vmid, '--skiplock', '--migratedfrom', $nodename;
|
|
|
|
my $migration_type = $self->{opts}->{migration_type};
|
|
|
|
push @$cmd, '--migration_type', $migration_type;
|
|
|
|
push @$cmd, '--migration_network', $self->{opts}->{migration_network}
|
|
if $self->{opts}->{migration_network};
|
|
|
|
if ($migration_type eq 'insecure') {
|
|
push @$cmd, '--stateuri', 'tcp';
|
|
} else {
|
|
push @$cmd, '--stateuri', 'unix';
|
|
}
|
|
|
|
if ($self->{forcemachine}) {
|
|
push @$cmd, '--machine', $self->{forcemachine};
|
|
}
|
|
|
|
if ($self->{forcecpu}) {
|
|
push @$cmd, '--force-cpu', $self->{forcecpu};
|
|
}
|
|
|
|
if ($self->{storage_migration}) {
|
|
push @$cmd, '--targetstorage', ($self->{opts}->{targetstorage} // '1');
|
|
}
|
|
|
|
my $spice_port;
|
|
my $unix_socket_info = {};
|
|
# version > 0 for unix socket support
|
|
my $nbd_protocol_version = 1;
|
|
my $input = "nbd_protocol_version: $nbd_protocol_version\n";
|
|
|
|
my @offline_local_volumes = $self->filter_local_volumes('offline');
|
|
for my $volid (@offline_local_volumes) {
|
|
my $drivename = $local_volumes->{$volid}->{drivename};
|
|
next if !$drivename || !$conf->{$drivename};
|
|
|
|
my $new_volid = $self->{volume_map}->{$volid};
|
|
next if !$new_volid || $volid eq $new_volid;
|
|
|
|
# FIXME PVE 8.x only use offline_volume variant once all targets can handle it
|
|
if ($drivename eq 'tpmstate0') {
|
|
$input .= "$drivename: $new_volid\n"
|
|
} else {
|
|
$input .= "offline_volume: $drivename: $new_volid\n"
|
|
}
|
|
}
|
|
|
|
$input .= "spice_ticket: $spice_ticket\n" if $spice_ticket;
|
|
|
|
my @online_replicated_volumes = $self->filter_local_volumes('online', 1);
|
|
foreach my $volid (@online_replicated_volumes) {
|
|
$input .= "replicated_volume: $volid\n";
|
|
}
|
|
|
|
my $handle_storage_migration_listens = sub {
|
|
my ($drive_key, $drivestr, $nbd_uri) = @_;
|
|
|
|
$self->{stopnbd} = 1;
|
|
$self->{target_drive}->{$drive_key}->{drivestr} = $drivestr;
|
|
$self->{target_drive}->{$drive_key}->{nbd_uri} = $nbd_uri;
|
|
|
|
my $source_drive = PVE::QemuServer::parse_drive($drive_key, $conf->{$drive_key});
|
|
my $target_drive = PVE::QemuServer::parse_drive($drive_key, $drivestr);
|
|
my $source_volid = $source_drive->{file};
|
|
my $target_volid = $target_drive->{file};
|
|
|
|
$self->{volume_map}->{$source_volid} = $target_volid;
|
|
$self->log('info', "volume '$source_volid' is '$target_volid' on the target\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
|
|
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+)$/) {
|
|
$raddr = $1;
|
|
$rport = int($2);
|
|
$ruri = "tcp:$raddr:$rport";
|
|
}
|
|
elsif ($line =~ m!^migration listens on unix:(/run/qemu-server/(\d+)\.migrate)$!) {
|
|
$raddr = $1;
|
|
die "Destination UNIX sockets VMID does not match source VMID" if $vmid ne $2;
|
|
$ruri = "unix:$raddr";
|
|
}
|
|
elsif ($line =~ m/^migration listens on port (\d+)$/) {
|
|
$raddr = "localhost";
|
|
$rport = int($1);
|
|
$ruri = "tcp:$raddr:$rport";
|
|
}
|
|
elsif ($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 $drivestr = $4;
|
|
my $nbd_uri = "nbd:$1:$2:exportname=$3";
|
|
my $targetdrive = $3;
|
|
$targetdrive =~ s/drive-//g;
|
|
|
|
$handle_storage_migration_listens->($targetdrive, $drivestr, $nbd_uri);
|
|
} elsif ($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;
|
|
|
|
$handle_storage_migration_listens->($targetdrive, $drivestr, $nbd_uri);
|
|
$unix_socket_info->{$nbd_unix_addr} = 1;
|
|
} 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;
|
|
$self->log('info', "[$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) != scalar(@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");
|
|
$self->start_remote_tunnel($raddr, $rport, $ruri, $unix_socket_info);
|
|
|
|
if ($self->{storage_migration}) {
|
|
$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(@online_local_volumes));
|
|
foreach my $drive (keys %{$self->{target_drive}}){
|
|
my $target = $self->{target_drive}->{$drive};
|
|
my $nbd_uri = $target->{nbd_uri};
|
|
|
|
my $source_drive = PVE::QemuServer::parse_drive($drive, $conf->{$drive});
|
|
my $source_volid = $source_drive->{file};
|
|
|
|
my $bwlimit = $local_volumes->{$source_volid}->{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}, 'skip', undef, $bwlimit, $bitmap);
|
|
}
|
|
}
|
|
|
|
$self->log('info', "starting online/live migration on $ruri");
|
|
$self->{livemigration} = 1;
|
|
|
|
# load_defaults
|
|
my $defaults = PVE::QemuServer::load_defaults();
|
|
|
|
$self->log('info', "set migration capabilities");
|
|
eval { PVE::QemuServer::set_migration_caps($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, $self->{opts}->{bwlimit}) // 0;
|
|
my $migrate_speed = $conf->{migrate_speed} // 0;
|
|
$migrate_speed *= 1024; # migrate_speed is in MB/s, bwlimit in KB/s
|
|
|
|
if ($bwlimit && $migrate_speed) {
|
|
$migrate_speed = ($bwlimit < $migrate_speed) ? $bwlimit : $migrate_speed;
|
|
} else {
|
|
$migrate_speed ||= $bwlimit;
|
|
}
|
|
$migrate_speed ||= ($defaults->{migrate_speed} || 0) * 1024;
|
|
|
|
if ($migrate_speed) {
|
|
$migrate_speed *= 1024; # qmp takes migrate_speed in B/s.
|
|
$self->log('info', "migration speed limit: ". render_bytes($migrate_speed, 1) ."/s");
|
|
} else {
|
|
# always set migrate speed as QEMU default to 128 MiBps == 1 Gbps, use 16 GiBps == 128 Gbps
|
|
$migrate_speed = (16 << 30);
|
|
}
|
|
$qemu_migrate_params->{'max-bandwidth'} = int($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);
|
|
|
|
$self->log('info', "migration cachesize: " . render_bytes($cachesize, 1));
|
|
$qemu_migrate_params->{'xbzrle-cache-size'} = int($cachesize);
|
|
|
|
$self->log('info', "set migration parameters");
|
|
eval {
|
|
mon_cmd($vmid, "migrate-set-parameters", %{$qemu_migrate_params});
|
|
};
|
|
$self->log('info', "migrate-set-parameters error: $@") if $@;
|
|
|
|
if (PVE::QemuServer::vga_conf_has_spice($conf->{vga})) {
|
|
my $rpcenv = PVE::RPCEnvironment::get();
|
|
my $authuser = $rpcenv->get_user();
|
|
|
|
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);
|
|
|
|
$self->log('info', "spice client_migrate_info");
|
|
|
|
eval {
|
|
mon_cmd($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 $@;
|
|
|
|
}
|
|
|
|
my $start = time();
|
|
|
|
$self->log('info', "start migrate command to $ruri");
|
|
eval {
|
|
mon_cmd($vmid, "migrate", uri => $ruri);
|
|
};
|
|
my $merr = $@;
|
|
$self->log('info', "migrate uri => $ruri failed: $merr") if $merr;
|
|
|
|
my $last_mem_transferred = 0;
|
|
my $usleep = 1000000;
|
|
my $i = 0;
|
|
my $err_count = 0;
|
|
my $lastrem = undef;
|
|
my $downtimecounter = 0;
|
|
while (1) {
|
|
$i++;
|
|
my $avglstat = $last_mem_transferred ? $last_mem_transferred / $i : 0;
|
|
|
|
usleep($usleep);
|
|
|
|
my $stat = eval { mon_cmd($vmid, "query-migrate") };
|
|
if (my $err = $@) {
|
|
$err_count++;
|
|
warn "query migrate failed: $err\n";
|
|
$self->log('info', "query migrate failed: $err");
|
|
if ($err_count <= 5) {
|
|
usleep(1_000_000);
|
|
next;
|
|
}
|
|
die "too many query migrate failures - aborting\n";
|
|
}
|
|
|
|
my $status = $stat->{status};
|
|
if (defined($status) && $status =~ m/^(setup)$/im) {
|
|
sleep(1);
|
|
next;
|
|
}
|
|
|
|
if (!defined($status) || $status !~ m/^(active|completed|failed|cancelled)$/im) {
|
|
die $merr if $merr;
|
|
die "unable to parse migration status '$status' - aborting\n";
|
|
}
|
|
$merr = undef;
|
|
$err_count = 0;
|
|
|
|
my $memstat = $stat->{ram};
|
|
|
|
if ($status eq 'completed') {
|
|
my $delay = time() - $start;
|
|
if ($delay > 0) {
|
|
my $total = $memstat->{total} || 0;
|
|
my $avg_speed = render_bytes($total / $delay, 1);
|
|
my $downtime = $stat->{downtime} || 0;
|
|
$self->log('info', "average migration speed: $avg_speed/s - downtime $downtime ms");
|
|
}
|
|
}
|
|
|
|
if ($status eq 'failed' || $status eq 'cancelled') {
|
|
$self->log('info', "migration status error: $status");
|
|
die "aborting\n"
|
|
}
|
|
|
|
if ($status ne 'active') {
|
|
$self->log('info', "migration status: $status");
|
|
last;
|
|
}
|
|
|
|
if ($memstat->{transferred} ne $last_mem_transferred) {
|
|
my $trans = $memstat->{transferred} || 0;
|
|
my $rem = $memstat->{remaining} || 0;
|
|
my $total = $memstat->{total} || 0;
|
|
my $speed = ($memstat->{'pages-per-second'} // 0) * ($memstat->{'page-size'} // 0);
|
|
my $dirty_rate = ($memstat->{'dirty-pages-rate'} // 0) * ($memstat->{'page-size'} // 0);
|
|
|
|
# reduce sleep if remainig memory is lower than the average transfer speed
|
|
$usleep = 100_000 if $avglstat && $rem < $avglstat;
|
|
|
|
# also reduce loggin if we poll more frequent
|
|
my $should_log = $usleep > 100_000 ? 1 : ($i % 10) == 0;
|
|
|
|
my $total_h = render_bytes($total, 1);
|
|
my $transferred_h = render_bytes($trans, 1);
|
|
my $speed_h = render_bytes($speed, 1);
|
|
|
|
my $progress = "transferred $transferred_h of $total_h VM-state, ${speed_h}/s";
|
|
|
|
if ($dirty_rate > $speed) {
|
|
my $dirty_rate_h = render_bytes($dirty_rate, 1);
|
|
$progress .= ", VM dirties lots of memory: $dirty_rate_h/s";
|
|
}
|
|
|
|
$self->log('info', "migration $status, $progress") if $should_log;
|
|
|
|
my $xbzrle = $stat->{"xbzrle-cache"} || {};
|
|
my ($xbzrlebytes, $xbzrlepages) = $xbzrle->@{'bytes', 'pages'};
|
|
if ($xbzrlebytes || $xbzrlepages) {
|
|
my $bytes_h = render_bytes($xbzrlebytes, 1);
|
|
|
|
my $msg = "send updates to $xbzrlepages pages in $bytes_h encoded memory";
|
|
|
|
$msg .= sprintf(", cache-miss %.2f%%", $xbzrle->{'cache-miss-rate'} * 100)
|
|
if $xbzrle->{'cache-miss-rate'};
|
|
|
|
$msg .= ", overflow $xbzrle->{overflow}" if $xbzrle->{overflow};
|
|
|
|
$self->log('info', "xbzrle: $msg") if $should_log;
|
|
}
|
|
|
|
if (($lastrem && $rem > $lastrem) || ($rem == 0)) {
|
|
$downtimecounter++;
|
|
}
|
|
$lastrem = $rem;
|
|
|
|
if ($downtimecounter > 5) {
|
|
$downtimecounter = 0;
|
|
$migrate_downtime *= 2;
|
|
$self->log('info', "auto-increased downtime to continue migration: $migrate_downtime ms");
|
|
eval {
|
|
# migrate-set-parameters does not touch values not
|
|
# specified, so this only changes downtime-limit
|
|
mon_cmd($vmid, "migrate-set-parameters", 'downtime-limit' => int($migrate_downtime));
|
|
};
|
|
$self->log('info', "migrate-set-parameters error: $@") if $@;
|
|
}
|
|
}
|
|
|
|
$last_mem_transferred = $memstat->{transferred};
|
|
}
|
|
|
|
if ($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,
|
|
# 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 = $@) {
|
|
die "Failed to complete storage migration: $err\n";
|
|
}
|
|
}
|
|
}
|
|
|
|
sub phase2_cleanup {
|
|
my ($self, $vmid, $err) = @_;
|
|
|
|
return if !$self->{errors};
|
|
$self->{phase2errors} = 1;
|
|
|
|
$self->log('info', "aborting phase 2 - cleanup resources");
|
|
|
|
$self->log('info', "migrate_cancel");
|
|
eval {
|
|
mon_cmd($vmid, "migrate_cancel");
|
|
};
|
|
$self->log('info', "migrate_cancel error: $@") if $@;
|
|
|
|
my $vm_status = eval {
|
|
mon_cmd($vmid, 'query-status')->{status} or die "no 'status' in result\n";
|
|
};
|
|
$self->log('err', "query-status error: $@") if $@;
|
|
|
|
# Can end up in POSTMIGRATE state if failure occurred after convergence. Try going back to
|
|
# original state. Unfortunately, direct transition from POSTMIGRATE to PAUSED is not possible.
|
|
if ($vm_status && $vm_status eq 'postmigrate') {
|
|
if (!$self->{vm_was_paused}) {
|
|
eval { mon_cmd($vmid, 'cont'); };
|
|
$self->log('err', "resuming VM failed: $@") if $@;
|
|
} else {
|
|
$self->log('err', "VM was paused, but ended in postmigrate state");
|
|
}
|
|
}
|
|
|
|
my $conf = $self->{vmconf};
|
|
delete $conf->{lock};
|
|
eval { PVE::QemuConfig->write_config($vmid, $conf) };
|
|
if (my $err = $@) {
|
|
$self->log('err', $err);
|
|
}
|
|
|
|
# cleanup ressources on target host
|
|
if ($self->{storage_migration}) {
|
|
eval { PVE::QemuServer::qemu_blockjobs_cancel($vmid, $self->{storage_migration_jobs}) };
|
|
if (my $err = $@) {
|
|
$self->log('err', $err);
|
|
}
|
|
}
|
|
|
|
eval { $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->log('err', $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 { PVE::Tunnel::finish_tunnel($self->{tunnel}); };
|
|
if (my $err = $@) {
|
|
$self->log('err', $err);
|
|
$self->{errors} = 1;
|
|
}
|
|
}
|
|
}
|
|
|
|
sub phase3 {
|
|
my ($self, $vmid) = @_;
|
|
|
|
return;
|
|
}
|
|
|
|
sub phase3_cleanup {
|
|
my ($self, $vmid, $err) = @_;
|
|
|
|
my $conf = $self->{vmconf};
|
|
return if $self->{phase2errors};
|
|
|
|
my $tunnel = $self->{tunnel};
|
|
|
|
if ($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->transfer_replication_state() if $self->{is_replicated};
|
|
PVE::QemuConfig->move_config_to_node($vmid, $self->{node});
|
|
$self->switch_replication_job_target() if $self->{is_replicated};
|
|
|
|
if ($self->{livemigration}) {
|
|
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', $vmid];
|
|
|
|
eval{ PVE::Tools::run_command($cmd, outfunc => sub {}, errfunc => sub {}) };
|
|
if (my $err = $@) {
|
|
$self->log('err', $err);
|
|
$self->{errors} = 1;
|
|
}
|
|
}
|
|
|
|
if (!$self->{vm_was_paused}) {
|
|
# config moved and nbd server stopped - now we can resume vm on target
|
|
if ($tunnel && $tunnel->{version} && $tunnel->{version} >= 1) {
|
|
eval {
|
|
PVE::Tunnel::write_tunnel($tunnel, 30, "resume $vmid");
|
|
};
|
|
if (my $err = $@) {
|
|
$self->log('err', $err);
|
|
$self->{errors} = 1;
|
|
}
|
|
} else {
|
|
my $cmd = [@{$self->{rem_ssh}}, 'qm', 'resume', $vmid, '--skiplock', '--nocheck'];
|
|
my $logf = sub {
|
|
my $line = shift;
|
|
$self->log('err', $line);
|
|
};
|
|
eval { PVE::Tools::run_command($cmd, outfunc => sub {}, errfunc => $logf); };
|
|
if (my $err = $@) {
|
|
$self->log('err', $err);
|
|
$self->{errors} = 1;
|
|
}
|
|
}
|
|
}
|
|
|
|
if (
|
|
$self->{storage_migration}
|
|
&& PVE::QemuServer::parse_guest_agent($conf)->{fstrim_cloned_disks}
|
|
&& $self->{running}
|
|
) {
|
|
if (!$self->{vm_was_paused}) {
|
|
$self->log('info', "issuing guest fstrim");
|
|
my $cmd = [@{$self->{rem_ssh}}, 'qm', 'guest', 'cmd', $vmid, 'fstrim'];
|
|
eval { PVE::Tools::run_command($cmd, outfunc => sub {}, errfunc => sub {}) };
|
|
if (my $err = $@) {
|
|
$self->log('err', "fstrim failed - $err");
|
|
$self->{errors} = 1;
|
|
}
|
|
} else {
|
|
$self->log('info', "skipping guest fstrim, because VM is paused");
|
|
}
|
|
}
|
|
}
|
|
|
|
# close tunnel on successful migration, on error phase2_cleanup closed it
|
|
if ($tunnel) {
|
|
eval { PVE::Tunnel::finish_tunnel($tunnel); };
|
|
if (my $err = $@) {
|
|
$self->log('err', $err);
|
|
$self->{errors} = 1;
|
|
}
|
|
}
|
|
|
|
eval {
|
|
my $timer = 0;
|
|
if (PVE::QemuServer::vga_conf_has_spice($conf->{vga}) && $self->{running}) {
|
|
$self->log('info', "Waiting for spice server migration");
|
|
while (1) {
|
|
my $res = mon_cmd($vmid, 'query-spice');
|
|
last if int($res->{'migrated'}) == 1;
|
|
last if $timer > 50;
|
|
$timer ++;
|
|
usleep(200000);
|
|
}
|
|
}
|
|
};
|
|
|
|
# always stop local VM
|
|
eval { PVE::QemuServer::vm_stop($self->{storecfg}, $vmid, 1, 1); };
|
|
if (my $err = $@) {
|
|
$self->log('err', "stopping vm failed - $err");
|
|
$self->{errors} = 1;
|
|
}
|
|
|
|
# always deactivate volumes - avoid lvm LVs to be active on several nodes
|
|
eval {
|
|
my $vollist = PVE::QemuServer::get_vm_volumes($conf);
|
|
PVE::Storage::deactivate_volumes($self->{storecfg}, $vollist);
|
|
};
|
|
if (my $err = $@) {
|
|
$self->log('err', $err);
|
|
$self->{errors} = 1;
|
|
}
|
|
|
|
my @not_replicated_volumes = $self->filter_local_volumes(undef, 0);
|
|
|
|
# destroy local copies
|
|
foreach my $volid (@not_replicated_volumes) {
|
|
eval { PVE::Storage::vdisk_free($self->{storecfg}, $volid); };
|
|
if (my $err = $@) {
|
|
$self->log('err', "removing local copy of '$volid' failed - $err");
|
|
$self->{errors} = 1;
|
|
last if $err =~ /^interrupted by signal$/;
|
|
}
|
|
}
|
|
|
|
# clear migrate lock
|
|
my $cmd = [ @{$self->{rem_ssh}}, 'qm', 'unlock', $vmid ];
|
|
$self->cmd_logerr($cmd, errmsg => "failed to clear migrate lock");
|
|
}
|
|
|
|
sub final_cleanup {
|
|
my ($self, $vmid) = @_;
|
|
|
|
# nothing to do
|
|
}
|
|
|
|
sub round_powerof2 {
|
|
return 1 if $_[0] < 2;
|
|
return 2 << int(log($_[0]-1)/log(2));
|
|
}
|
|
|
|
1;
|