1 package PVE
::QemuMigrate
;
8 use Time
::HiRes
qw( usleep );
11 use PVE
::Format
qw(render_bytes);
12 use PVE
::GuestHelpers
qw(safe_boolean_ne safe_string_ne);
14 use PVE
::RPCEnvironment
;
16 use PVE
::ReplicationConfig
;
17 use PVE
::ReplicationState
;
19 use PVE
::StorageTunnel
;
24 use PVE
::QemuServer
::CPUConfig
;
25 use PVE
::QemuServer
::Drive
;
26 use PVE
::QemuServer
::Helpers
qw(min_version);
27 use PVE
::QemuServer
::Machine
;
28 use PVE
::QemuServer
::Monitor
qw(mon_cmd);
31 use PVE
::AbstractMigrate
;
32 use base
qw(PVE::AbstractMigrate);
34 # compared against remote end's minimum version
35 our $WS_TUNNEL_VERSION = 2;
38 my ($self, $ssh_forward_info) = @_;
40 my $cmd = ['/usr/sbin/qm', 'mtunnel'];
42 my ($level, $msg) = @_;
43 $self->log($level, $msg);
46 return PVE
::Tunnel
::fork_ssh_tunnel
($self->{rem_ssh
}, $cmd, $ssh_forward_info, $log);
49 sub fork_websocket_tunnel
{
50 my ($self, $storages, $bridges) = @_;
52 my $remote = $self->{opts
}->{remote
};
53 my $conn = $remote->{conn
};
56 my ($level, $msg) = @_;
57 $self->log($level, $msg);
60 my $websocket_url = "https://$conn->{host}:$conn->{port}/api2/json/nodes/$self->{node}/qemu/$remote->{vmid}/mtunnelwebsocket";
61 my $url = "/nodes/$self->{node}/qemu/$remote->{vmid}/mtunnel";
64 url
=> $websocket_url,
67 my $storage_list = join(',', keys %$storages);
68 my $bridge_list = join(',', keys %$bridges);
71 storages
=> $storage_list,
72 bridges
=> $bridge_list,
75 return PVE
::Tunnel
::fork_websocket_tunnel
($conn, $url, $req_params, $tunnel_params, $log);
79 # proto: unix (secure) or tcp (insecure/legacy compat)
80 # addr: IP or UNIX socket path
81 # port: optional TCP port
82 # unix_sockets: additional UNIX socket paths to forward
83 sub start_remote_tunnel
{
84 my ($self, $tunnel_info) = @_;
86 my $nodename = PVE
::INotify
::nodename
();
87 my $migration_type = $self->{opts
}->{migration_type
};
89 if ($migration_type eq 'secure') {
91 if ($tunnel_info->{proto
} eq 'unix') {
92 my $ssh_forward_info = [];
94 my $unix_sockets = [ keys %{$tunnel_info->{unix_sockets
}} ];
95 push @$unix_sockets, $tunnel_info->{addr
};
96 for my $sock (@$unix_sockets) {
97 push @$ssh_forward_info, "$sock:$sock";
101 $self->{tunnel
} = $self->fork_tunnel($ssh_forward_info);
103 my $unix_socket_try = 0; # wait for the socket to become ready
104 while ($unix_socket_try <= 100) {
107 foreach my $sock (@$unix_sockets) {
113 if ($available == @$unix_sockets) {
119 if ($unix_socket_try > 100) {
121 PVE
::Tunnel
::finish_tunnel
($self->{tunnel
});
122 die "Timeout, migration socket $tunnel_info->{addr} did not get ready";
124 $self->{tunnel
}->{unix_sockets
} = $unix_sockets if (@$unix_sockets);
126 } elsif ($tunnel_info->{proto
} eq 'tcp') {
127 my $ssh_forward_info = [];
128 if ($tunnel_info->{addr
} eq "localhost") {
129 # for backwards compatibility with older qemu-server versions
130 my $pfamily = PVE
::Tools
::get_host_address_family
($nodename);
131 my $lport = PVE
::Tools
::next_migrate_port
($pfamily);
132 push @$ssh_forward_info, "$lport:localhost:$tunnel_info->{port}";
135 $self->{tunnel
} = $self->fork_tunnel($ssh_forward_info);
138 die "unsupported protocol in migration URI: $tunnel_info->{proto}\n";
141 #fork tunnel for insecure migration, to send faster commands like resume
142 $self->{tunnel
} = $self->fork_tunnel();
147 my ($self, $vmid, $code, @param) = @_;
149 return PVE
::QemuConfig-
>lock_config($vmid, $code, @param);
152 sub target_storage_check_available
{
153 my ($self, $storecfg, $targetsid, $volid) = @_;
155 if (!$self->{opts
}->{remote
}) {
156 # check if storage is available on target node
157 my $target_scfg = PVE
::Storage
::storage_check_enabled
(
162 my ($vtype) = PVE
::Storage
::parse_volname
($storecfg, $volid);
163 die "$volid: content type '$vtype' is not available on storage '$targetsid'\n"
164 if !$target_scfg->{content
}->{$vtype};
169 my ($self, $vmid) = @_;
171 my $online = $self->{opts
}->{online
};
173 my $storecfg = $self->{storecfg
} = PVE
::Storage
::config
();
176 my $conf = $self->{vmconf
} = PVE
::QemuConfig-
>load_config($vmid);
178 my $version = PVE
::QemuServer
::Helpers
::get_node_pvecfg_version
($self->{node
});
179 my $cloudinit_config = $conf->{cloudinit
};
182 PVE
::QemuConfig-
>has_cloudinit($conf) && defined($cloudinit_config)
183 && scalar(keys %$cloudinit_config) > 0
184 && !PVE
::QemuServer
::Helpers
::pvecfg_min_version
($version, 7, 2, 13)
186 die "target node is too old (manager <= 7.2-13) and doesn't support new cloudinit section\n";
189 my $repl_conf = PVE
::ReplicationConfig-
>new();
190 $self->{replication_jobcfg
} = $repl_conf->find_local_replication_job($vmid, $self->{node
});
191 $self->{is_replicated
} = $repl_conf->check_for_existing_jobs($vmid, 1);
193 if ($self->{replication_jobcfg
} && defined($self->{replication_jobcfg
}->{remove_job
})) {
194 die "refusing to migrate replicated VM whose replication job is marked for removal\n";
197 PVE
::QemuConfig-
>check_lock($conf);
200 if (my $pid = PVE
::QemuServer
::check_running
($vmid)) {
201 die "can't migrate running VM without --online\n" if !$online;
204 if ($self->{is_replicated
} && !$self->{replication_jobcfg
}) {
205 if ($self->{opts
}->{force
}) {
206 $self->log('warn', "WARNING: Node '$self->{node}' is not a replication target. Existing " .
207 "replication jobs will fail after migration!\n");
209 die "Cannot live-migrate replicated VM to node '$self->{node}' - not a replication " .
210 "target. Use 'force' to override.\n";
214 $self->{forcemachine
} = PVE
::QemuServer
::Machine
::qemu_machine_pxe
($vmid, $conf);
216 # To support custom CPU types, we keep QEMU's "-cpu" parameter intact.
217 # Since the parameter itself contains no reference to a custom model,
218 # this makes migration independent of changes to "cpu-models.conf".
220 my $cpuconf = PVE
::JSONSchema
::parse_property_string
('pve-cpu-conf', $conf->{cpu
});
221 if ($cpuconf && PVE
::QemuServer
::CPUConfig
::is_custom_model
($cpuconf->{cputype
})) {
222 $self->{forcecpu
} = PVE
::QemuServer
::CPUConfig
::get_cpu_from_running_vm
($pid);
226 $self->{vm_was_paused
} = 1 if PVE
::QemuServer
::vm_is_paused
($vmid);
229 my ($loc_res, $mapped_res, $missing_mappings_by_node) = PVE
::QemuServer
::check_local_resources
($conf, 1);
230 my $blocking_resources = [];
231 for my $res ($loc_res->@*) {
232 if (!grep($res, $mapped_res->@*)) {
233 push $blocking_resources->@*, $res;
236 if (scalar($blocking_resources->@*)) {
237 if ($self->{running
} || !$self->{opts
}->{force
}) {
238 die "can't migrate VM which uses local devices: " . join(", ", $blocking_resources->@*) . "\n";
240 $self->log('info', "migrating VM which uses local devices");
244 if (scalar($mapped_res->@*)) {
245 my $missing_mappings = $missing_mappings_by_node->{$self->{node
}};
247 die "can't migrate running VM which uses mapped devices: " . join(", ", $mapped_res->@*) . "\n";
248 } elsif (scalar($missing_mappings->@*)) {
249 die "can't migrate to '$self->{node}': missing mapped devices " . join(", ", $missing_mappings->@*) . "\n";
251 $self->log('info', "migrating VM which uses mapped local devices");
255 my $vollist = PVE
::QemuServer
::get_vm_volumes
($conf);
258 foreach my $volid (@$vollist) {
259 my ($sid, $volname) = PVE
::Storage
::parse_volume_id
($volid, 1);
261 # check if storage is available on source node
262 my $scfg = PVE
::Storage
::storage_check_enabled
($storecfg, $sid);
264 my $targetsid = $sid;
265 # NOTE: local ignores shared mappings, remote maps them
266 if (!$scfg->{shared
} || $self->{opts
}->{remote
}) {
267 $targetsid = PVE
::JSONSchema
::map_id
($self->{opts
}->{storagemap
}, $sid);
270 $storages->{$targetsid} = 1;
272 $self->target_storage_check_available($storecfg, $targetsid, $volid);
274 if ($scfg->{shared
}) {
275 # PVE::Storage::activate_storage checks this for non-shared storages
276 my $plugin = PVE
::Storage
::Plugin-
>lookup($scfg->{type
});
277 warn "Used shared storage '$sid' is not online on source node!\n"
278 if !$plugin->check_connection($sid, $scfg);
282 if ($self->{opts
}->{remote
}) {
283 # test & establish websocket connection
284 my $bridges = map_bridges
($conf, $self->{opts
}->{bridgemap
}, 1);
285 my $tunnel = $self->fork_websocket_tunnel($storages, $bridges);
286 my $min_version = $tunnel->{version
} - $tunnel->{age
};
287 $self->log('info', "local WS tunnel version: $WS_TUNNEL_VERSION");
288 $self->log('info', "remote WS tunnel version: $tunnel->{version}");
289 $self->log('info', "minimum required WS tunnel version: $min_version");
290 die "Remote tunnel endpoint not compatible, upgrade required\n"
291 if $WS_TUNNEL_VERSION < $min_version;
292 die "Remote tunnel endpoint too old, upgrade required\n"
293 if $WS_TUNNEL_VERSION > $tunnel->{version
};
295 print "websocket tunnel started\n";
296 $self->{tunnel
} = $tunnel;
298 # test ssh connection
299 my $cmd = [ @{$self->{rem_ssh
}}, '/bin/true' ];
300 eval { $self->cmd_quiet($cmd); };
301 die "Can't connect to destination address using public key\n" if $@;
307 sub scan_local_volumes
{
308 my ($self, $vmid) = @_;
310 my $conf = $self->{vmconf
};
312 # local volumes which have been copied
313 # and their old_id => new_id pairs
314 $self->{volume_map
} = {};
315 $self->{local_volumes
} = {};
317 my $storecfg = $self->{storecfg
};
320 # found local volumes and their origin
321 my $local_volumes = $self->{local_volumes
};
322 my $local_volumes_errors = {};
323 my $other_errors = [];
326 my $log_error = sub {
327 my ($msg, $volid) = @_;
329 if (defined($volid)) {
330 $local_volumes_errors->{$volid} = $msg;
332 push @$other_errors, $msg;
337 my @sids = PVE
::Storage
::storage_ids
($storecfg);
338 foreach my $storeid (@sids) {
339 my $scfg = PVE
::Storage
::storage_config
($storecfg, $storeid);
340 next if $scfg->{shared
} && !$self->{opts
}->{remote
};
341 next if !PVE
::Storage
::storage_check_enabled
($storecfg, $storeid, undef, 1);
343 # get list from PVE::Storage (for unused volumes)
344 my $dl = PVE
::Storage
::vdisk_list
($storecfg, $storeid, $vmid, undef, 'images');
346 next if @{$dl->{$storeid}} == 0;
348 my $targetsid = PVE
::JSONSchema
::map_id
($self->{opts
}->{storagemap
}, $storeid);
349 if (!$self->{opts
}->{remote
}) {
350 # check if storage is available on target node
351 my $target_scfg = PVE
::Storage
::storage_check_enabled
(
357 die "content type 'images' is not available on storage '$targetsid'\n"
358 if !$target_scfg->{content
}->{images
};
362 my $bwlimit = $self->get_bwlimit($storeid, $targetsid);
364 PVE
::Storage
::foreach_volid
($dl, sub {
365 my ($volid, $sid, $volinfo) = @_;
367 $local_volumes->{$volid}->{ref} = 'storage';
368 $local_volumes->{$volid}->{size
} = $volinfo->{size
};
369 $local_volumes->{$volid}->{targetsid
} = $targetsid;
370 $local_volumes->{$volid}->{bwlimit
} = $bwlimit;
372 # If with_snapshots is not set for storage migrate, it tries to use
373 # a raw+size stream, but on-the-fly conversion from qcow2 to raw+size
374 # back to qcow2 is currently not possible.
375 $local_volumes->{$volid}->{snapshots
} = ($volinfo->{format
} =~ /^(?:qcow2|vmdk)$/);
376 $local_volumes->{$volid}->{format
} = $volinfo->{format
};
380 my $replicatable_volumes = !$self->{replication_jobcfg
} ?
{}
381 : PVE
::QemuConfig-
>get_replicatable_volumes($storecfg, $vmid, $conf, 0, 1);
382 foreach my $volid (keys %{$replicatable_volumes}) {
383 $local_volumes->{$volid}->{replicated
} = 1;
386 my $test_volid = sub {
387 my ($volid, $attr) = @_;
389 if ($volid =~ m
|^/|) {
390 return if $attr->{shared
};
391 $local_volumes->{$volid}->{ref} = 'config';
392 die "local file/device\n";
395 my $snaprefs = $attr->{referenced_in_snapshot
};
397 if ($attr->{cdrom
}) {
398 if ($volid eq 'cdrom') {
399 my $msg = "can't migrate local cdrom drive";
400 if (defined($snaprefs) && !$attr->{referenced_in_config
}) {
401 my $snapnames = join(', ', sort keys %$snaprefs);
402 $msg .= " (referenced in snapshot - $snapnames)";
404 &$log_error("$msg\n");
407 return if $volid eq 'none';
410 my ($sid, $volname) = PVE
::Storage
::parse_volume_id
($volid);
412 # check if storage is available on both nodes
413 my $scfg = PVE
::Storage
::storage_check_enabled
($storecfg, $sid);
415 my $targetsid = $sid;
416 # NOTE: local ignores shared mappings, remote maps them
417 if (!$scfg->{shared
} || $self->{opts
}->{remote
}) {
418 $targetsid = PVE
::JSONSchema
::map_id
($self->{opts
}->{storagemap
}, $sid);
421 $self->target_storage_check_available($storecfg, $targetsid, $volid);
422 return if $scfg->{shared
} && !$self->{opts
}->{remote
};
424 $local_volumes->{$volid}->{ref} = $attr->{referenced_in_config
} ?
'config' : 'snapshot';
425 $local_volumes->{$volid}->{ref} = 'storage' if $attr->{is_unused
};
426 $local_volumes->{$volid}->{ref} = 'generated' if $attr->{is_tpmstate
};
428 $local_volumes->{$volid}->{is_vmstate
} = $attr->{is_vmstate
} ?
1 : 0;
430 $local_volumes->{$volid}->{drivename
} = $attr->{drivename
}
431 if $attr->{drivename
};
433 if ($attr->{cdrom
}) {
434 if ($volid =~ /vm-\d+-cloudinit/) {
435 $local_volumes->{$volid}->{ref} = 'generated';
438 die "local cdrom image\n";
441 my ($path, $owner) = PVE
::Storage
::path
($storecfg, $volid);
443 die "owned by other VM (owner = VM $owner)\n"
444 if !$owner || ($owner != $vmid);
446 return if $attr->{is_vmstate
};
448 if (defined($snaprefs)) {
449 $local_volumes->{$volid}->{snapshots
} = 1;
451 # we cannot migrate shapshots on local storage
452 # exceptions: 'zfspool' or 'qcow2' files (on directory storage)
454 die "online storage migration not possible if non-replicated snapshot exists\n"
455 if $self->{running
} && !$local_volumes->{$volid}->{replicated
};
457 die "remote migration with snapshots not supported yet\n" if $self->{opts
}->{remote
};
459 if (!($scfg->{type
} eq 'zfspool'
460 || ($scfg->{type
} eq 'btrfs' && $local_volumes->{$volid}->{format
} eq 'raw')
461 || $local_volumes->{$volid}->{format
} eq 'qcow2'
463 die "non-migratable snapshot exists\n";
467 die "referenced by linked clone(s)\n"
468 if PVE
::Storage
::volume_is_base_and_used
($storecfg, $volid);
471 PVE
::QemuServer
::foreach_volid
($conf, 1, sub {
472 my ($volid, $attr) = @_;
473 eval { $test_volid->($volid, $attr); };
475 &$log_error($err, $volid);
479 foreach my $vol (sort keys %$local_volumes) {
480 my $type = $replicatable_volumes->{$vol} ?
'local, replicated' : 'local';
481 my $ref = $local_volumes->{$vol}->{ref};
482 if ($ref eq 'storage') {
483 $self->log('info', "found $type disk '$vol' (via storage)\n");
484 } elsif ($ref eq 'config') {
485 &$log_error("can't live migrate attached local disks without with-local-disks option\n", $vol)
486 if $self->{running
} && !$self->{opts
}->{"with-local-disks"};
487 $self->log('info', "found $type disk '$vol' (in current VM config)\n");
488 } elsif ($ref eq 'snapshot') {
489 $self->log('info', "found $type disk '$vol' (referenced by snapshot(s))\n");
490 } elsif ($ref eq 'generated') {
491 $self->log('info', "found generated disk '$vol' (in current VM config)\n");
493 $self->log('info', "found $type disk '$vol'\n");
497 foreach my $vol (sort keys %$local_volumes_errors) {
498 $self->log('warn', "can't migrate local disk '$vol': $local_volumes_errors->{$vol}");
500 foreach my $err (@$other_errors) {
501 $self->log('warn', "$err");
505 die "can't migrate VM - check log\n";
508 # additional checks for local storage
509 foreach my $volid (keys %$local_volumes) {
510 my ($sid, $volname) = PVE
::Storage
::parse_volume_id
($volid);
511 my $scfg = PVE
::Storage
::storage_config
($storecfg, $sid);
513 my $migratable = $scfg->{type
} =~ /^(?:dir|btrfs|zfspool|lvmthin|lvm)$/;
515 # TODO: what is this even here for?
516 $migratable = 1 if $self->{opts
}->{remote
};
518 die "can't migrate '$volid' - storage type '$scfg->{type}' not supported\n"
521 # image is a linked clone on local storage, se we can't migrate.
522 if (my $basename = (PVE
::Storage
::parse_volname
($storecfg, $volid))[3]) {
523 die "can't migrate '$volid' as it's a clone of '$basename'";
527 foreach my $volid (sort keys %$local_volumes) {
528 my $ref = $local_volumes->{$volid}->{ref};
529 if ($self->{running
} && $ref eq 'config') {
530 $local_volumes->{$volid}->{migration_mode
} = 'online';
531 } elsif ($self->{running
} && $ref eq 'generated') {
532 # offline migrate the cloud-init ISO and don't regenerate on VM start
534 # tpmstate will also be offline migrated first, and in case of
535 # live migration then updated by QEMU/swtpm if necessary
536 $local_volumes->{$volid}->{migration_mode
} = 'offline';
538 $local_volumes->{$volid}->{migration_mode
} = 'offline';
542 die "Problem found while scanning volumes - $@" if $@;
545 sub handle_replication
{
546 my ($self, $vmid) = @_;
548 my $conf = $self->{vmconf
};
549 my $local_volumes = $self->{local_volumes
};
551 return if !$self->{replication_jobcfg
};
553 die "can't migrate VM with replicated volumes to remote cluster/node\n"
554 if $self->{opts
}->{remote
};
556 if ($self->{running
}) {
558 my $version = PVE
::QemuServer
::kvm_user_version
();
559 if (!min_version
($version, 4, 2)) {
560 die "can't live migrate VM with replicated volumes, pve-qemu to old (< 4.2)!\n"
563 my @live_replicatable_volumes = $self->filter_local_volumes('online', 1);
564 foreach my $volid (@live_replicatable_volumes) {
565 my $drive = $local_volumes->{$volid}->{drivename
};
566 die "internal error - no drive for '$volid'\n" if !defined($drive);
568 my $bitmap = "repl_$drive";
570 # start tracking before replication to get full delta + a few duplicates
571 $self->log('info', "$drive: start tracking writes using block-dirty-bitmap '$bitmap'");
572 mon_cmd
($vmid, 'block-dirty-bitmap-add', node
=> "drive-$drive", name
=> $bitmap);
574 # other info comes from target node in phase 2
575 $self->{target_drive
}->{$drive}->{bitmap
} = $bitmap;
578 $self->log('info', "replicating disk images");
580 my $start_time = time();
581 my $logfunc = sub { $self->log('info', shift) };
582 my $actual_replicated_volumes = PVE
::Replication
::run_replication
(
583 'PVE::QemuConfig', $self->{replication_jobcfg
}, $start_time, $start_time, $logfunc);
586 my @replicated_volumes = $self->filter_local_volumes(undef, 1);
587 foreach my $volid (@replicated_volumes) {
588 die "expected volume '$volid' to get replicated, but it wasn't\n"
589 if !$actual_replicated_volumes->{$volid};
593 sub config_update_local_disksizes
{
596 my $conf = $self->{vmconf
};
597 my $local_volumes = $self->{local_volumes
};
599 PVE
::QemuConfig-
>foreach_volume($conf, sub {
600 my ($key, $drive) = @_;
601 # skip special disks, will be handled later
602 return if $key eq 'efidisk0';
603 return if $key eq 'tpmstate0';
605 my $volid = $drive->{file
};
606 return if !defined($local_volumes->{$volid}); # only update sizes for local volumes
608 my ($updated, $msg) = PVE
::QemuServer
::Drive
::update_disksize
($drive, $local_volumes->{$volid}->{size
});
609 if (defined($updated)) {
610 $conf->{$key} = PVE
::QemuServer
::print_drive
($updated);
611 $self->log('info', "drive '$key': $msg");
615 # we want to set the efidisk size in the config to the size of the
616 # real OVMF_VARS.fd image, else we can create a too big image, which does not work
617 if (defined($conf->{efidisk0
})) {
618 PVE
::QemuServer
::update_efidisk_size
($conf);
621 # TPM state might have an irregular filesize, to avoid problems on transfer
622 # we always assume the static size of 4M to allocate on the target
623 if (defined($conf->{tpmstate0
})) {
624 PVE
::QemuServer
::update_tpmstate_size
($conf);
628 sub filter_local_volumes
{
629 my ($self, $migration_mode, $replicated) = @_;
631 my $volumes = $self->{local_volumes
};
634 foreach my $volid (sort keys %{$volumes}) {
635 next if defined($migration_mode) && safe_string_ne
($volumes->{$volid}->{migration_mode
}, $migration_mode);
636 next if defined($replicated) && safe_boolean_ne
($volumes->{$volid}->{replicated
}, $replicated);
637 push @filtered_volids, $volid;
640 return @filtered_volids;
643 sub sync_offline_local_volumes
{
646 my $local_volumes = $self->{local_volumes
};
647 my @volids = $self->filter_local_volumes('offline', 0);
649 my $storecfg = $self->{storecfg
};
650 my $opts = $self->{opts
};
652 $self->log('info', "copying local disk images") if scalar(@volids);
654 foreach my $volid (@volids) {
657 my $opts = $self->{opts
};
658 if ($opts->{remote
}) {
660 my ($level, $msg) = @_;
661 $self->log($level, $msg);
664 $new_volid = PVE
::StorageTunnel
::storage_migrate
(
669 $opts->{remote
}->{vmid
},
670 $local_volumes->{$volid},
674 my $targetsid = $local_volumes->{$volid}->{targetsid
};
676 my $bwlimit = $local_volumes->{$volid}->{bwlimit
};
677 $bwlimit = $bwlimit * 1024 if defined($bwlimit); # storage_migrate uses bps
679 my $storage_migrate_opts = {
680 'ratelimit_bps' => $bwlimit,
681 'insecure' => $opts->{migration_type
} eq 'insecure',
682 'with_snapshots' => $local_volumes->{$volid}->{snapshots
},
683 'allow_rename' => !$local_volumes->{$volid}->{is_vmstate
},
686 my $logfunc = sub { $self->log('info', $_[0]); };
688 PVE
::Storage
::storage_migrate
(
693 $storage_migrate_opts,
698 die "storage migration for '$volid' to storage '$targetsid' failed - $err\n";
702 $self->{volume_map
}->{$volid} = $new_volid;
703 $self->log('info', "volume '$volid' is '$new_volid' on the target\n");
705 eval { PVE
::Storage
::deactivate_volumes
($storecfg, [$volid]); };
707 $self->log('warn', $err);
712 sub cleanup_remotedisks
{
715 if ($self->{opts
}->{remote
}) {
716 PVE
::Tunnel
::finish_tunnel
($self->{tunnel
}, 1);
717 delete $self->{tunnel
};
721 my $local_volumes = $self->{local_volumes
};
723 foreach my $volid (values %{$self->{volume_map
}}) {
724 # don't clean up replicated disks!
725 next if $local_volumes->{$volid}->{replicated
};
727 my ($storeid, $volname) = PVE
::Storage
::parse_volume_id
($volid);
729 my $cmd = [@{$self->{rem_ssh
}}, 'pvesm', 'free', "$storeid:$volname"];
731 eval{ PVE
::Tools
::run_command
($cmd, outfunc
=> sub {}, errfunc
=> sub {}) };
733 $self->log('err', $err);
739 sub cleanup_bitmaps
{
741 foreach my $drive (keys %{$self->{target_drive
}}) {
742 my $bitmap = $self->{target_drive
}->{$drive}->{bitmap
};
744 $self->log('info', "$drive: removing block-dirty-bitmap '$bitmap'");
745 mon_cmd
($self->{vmid
}, 'block-dirty-bitmap-remove', node
=> "drive-$drive", name
=> $bitmap);
750 my ($self, $vmid) = @_;
752 $self->log('info', "starting migration of VM $vmid to node '$self->{node}' ($self->{nodeip})");
754 my $conf = $self->{vmconf
};
756 # set migrate lock in config file
757 $conf->{lock} = 'migrate';
758 PVE
::QemuConfig-
>write_config($vmid, $conf);
760 $self->scan_local_volumes($vmid);
762 # fix disk sizes to match their actual size and write changes,
763 # so that the target allocates the correct volumes
764 $self->config_update_local_disksizes();
765 PVE
::QemuConfig-
>write_config($vmid, $conf);
767 $self->handle_replication($vmid);
769 $self->sync_offline_local_volumes();
770 $self->phase1_remote($vmid) if $self->{opts
}->{remote
};
774 my ($conf, $map, $scan_only) = @_;
778 foreach my $opt (keys %$conf) {
779 next if $opt !~ m/^net\d+$/;
781 next if !$conf->{$opt};
782 my $d = PVE
::QemuServer
::parse_net
($conf->{$opt});
783 next if !$d || !$d->{bridge
};
785 my $target_bridge = PVE
::JSONSchema
::map_id
($map, $d->{bridge
});
786 $bridges->{$target_bridge}->{$opt} = $d->{bridge
};
790 $d->{bridge
} = $target_bridge;
791 $conf->{$opt} = PVE
::QemuServer
::print_net
($d);
798 my ($self, $vmid) = @_;
800 my $remote_conf = PVE
::QemuConfig-
>load_config($vmid);
801 PVE
::QemuConfig-
>update_volume_ids($remote_conf, $self->{volume_map
});
803 my $bridges = map_bridges
($remote_conf, $self->{opts
}->{bridgemap
});
804 for my $target (keys $bridges->%*) {
805 for my $nic (keys $bridges->{$target}->%*) {
806 $self->log('info', "mapped: $nic from $bridges->{$target}->{$nic} to $target");
810 my @online_local_volumes = $self->filter_local_volumes('online');
812 my $storage_map = $self->{opts
}->{storagemap
};
814 PVE
::QemuConfig-
>foreach_volume($remote_conf, sub {
815 my ($ds, $drive) = @_;
818 return if PVE
::QemuServer
::drive_is_cdrom
($drive);
820 my $volid = $drive->{file
};
823 return if !grep { $_ eq $volid} @online_local_volumes;
825 my ($storeid, $volname) = PVE
::Storage
::parse_volume_id
($volid);
826 my $scfg = PVE
::Storage
::storage_config
($self->{storecfg
}, $storeid);
827 my $source_format = PVE
::QemuServer
::qemu_img_format
($scfg, $volname);
829 # set by target cluster
830 my $oldvolid = delete $drive->{file
};
831 delete $drive->{format
};
833 my $targetsid = PVE
::JSONSchema
::map_id
($storage_map, $storeid);
836 format
=> $source_format,
837 storage
=> $targetsid,
841 $self->log('info', "Allocating volume for drive '$ds' on remote storage '$targetsid'..");
842 my $res = PVE
::Tunnel
::write_tunnel
($self->{tunnel
}, 600, 'disk', $params);
844 $self->log('info', "volume '$oldvolid' is '$res->{volid}' on the target\n");
845 $remote_conf->{$ds} = $res->{drivestr
};
846 $self->{nbd
}->{$ds} = $res;
849 my $conf_str = PVE
::QemuServer
::write_vm_config
("remote", $remote_conf);
851 # TODO expose in PVE::Firewall?
852 my $vm_fw_conf_path = "/etc/pve/firewall/$vmid.fw";
854 $fw_conf_str = PVE
::Tools
::file_get_contents
($vm_fw_conf_path)
855 if -e
$vm_fw_conf_path;
858 'firewall-config' => $fw_conf_str,
861 PVE
::Tunnel
::write_tunnel
($self->{tunnel
}, 10, 'config', $params);
865 my ($self, $vmid, $err) = @_;
867 $self->log('info', "aborting phase 1 - cleanup resources");
869 my $conf = $self->{vmconf
};
870 delete $conf->{lock};
871 eval { PVE
::QemuConfig-
>write_config($vmid, $conf) };
873 $self->log('err', $err);
876 eval { $self->cleanup_remotedisks() };
878 $self->log('err', $err);
881 eval { $self->cleanup_bitmaps() };
883 $self->log('err', $err);
887 sub phase2_start_local_cluster
{
888 my ($self, $vmid, $params) = @_;
890 my $conf = $self->{vmconf
};
891 my $local_volumes = $self->{local_volumes
};
892 my @online_local_volumes = $self->filter_local_volumes('online');
894 my $start = $params->{start_params
};
895 my $migrate = $params->{migrate_opts
};
897 $self->log('info', "starting VM $vmid on remote node '$self->{node}'");
899 my $tunnel_info = {};
901 ## start on remote node
902 my $cmd = [@{$self->{rem_ssh
}}];
904 push @$cmd, 'qm', 'start', $vmid;
906 if ($start->{skiplock
}) {
907 push @$cmd, '--skiplock';
910 push @$cmd, '--migratedfrom', $migrate->{migratedfrom
};
912 push @$cmd, '--migration_type', $migrate->{type
};
914 push @$cmd, '--migration_network', $migrate->{network
}
915 if $migrate->{network
};
917 push @$cmd, '--stateuri', $start->{statefile
};
919 if ($start->{forcemachine
}) {
920 push @$cmd, '--machine', $start->{forcemachine
};
923 if ($start->{forcecpu
}) {
924 push @$cmd, '--force-cpu', $start->{forcecpu
};
927 if ($self->{storage_migration
}) {
928 push @$cmd, '--targetstorage', ($self->{opts
}->{targetstorage
} // '1');
932 my $input = "nbd_protocol_version: $migrate->{nbd_proto_version}\n";
934 my @offline_local_volumes = $self->filter_local_volumes('offline');
935 for my $volid (@offline_local_volumes) {
936 my $drivename = $local_volumes->{$volid}->{drivename
};
937 next if !$drivename || !$conf->{$drivename};
939 my $new_volid = $self->{volume_map
}->{$volid};
940 next if !$new_volid || $volid eq $new_volid;
942 # FIXME PVE 8.x only use offline_volume variant once all targets can handle it
943 if ($drivename eq 'tpmstate0') {
944 $input .= "$drivename: $new_volid\n"
946 $input .= "offline_volume: $drivename: $new_volid\n"
950 $input .= "spice_ticket: $migrate->{spice_ticket}\n" if $migrate->{spice_ticket
};
952 my @online_replicated_volumes = $self->filter_local_volumes('online', 1);
953 foreach my $volid (@online_replicated_volumes) {
954 $input .= "replicated_volume: $volid\n";
957 my $handle_storage_migration_listens = sub {
958 my ($drive_key, $drivestr, $nbd_uri) = @_;
960 $self->{stopnbd
} = 1;
961 $self->{target_drive
}->{$drive_key}->{drivestr
} = $drivestr;
962 $self->{target_drive
}->{$drive_key}->{nbd_uri
} = $nbd_uri;
964 my $source_drive = PVE
::QemuServer
::parse_drive
($drive_key, $conf->{$drive_key});
965 my $target_drive = PVE
::QemuServer
::parse_drive
($drive_key, $drivestr);
966 my $source_volid = $source_drive->{file
};
967 my $target_volid = $target_drive->{file
};
969 $self->{volume_map
}->{$source_volid} = $target_volid;
970 $self->log('info', "volume '$source_volid' is '$target_volid' on the target\n");
973 my $target_replicated_volumes = {};
975 # Note: We try to keep $spice_ticket secret (do not pass via command line parameter)
976 # instead we pipe it through STDIN
977 my $exitcode = PVE
::Tools
::run_command
($cmd, input
=> $input, outfunc
=> sub {
980 if ($line =~ m/^migration listens on (tcp):(localhost|[\d\.]+|\[[\d\.:a-fA-F]+\]):(\d+)$/) {
981 $tunnel_info->{addr
} = $2;
982 $tunnel_info->{port
} = int($3);
983 $tunnel_info->{proto
} = $1;
985 elsif ($line =~ m!^migration listens on (unix):(/run/qemu-server/(\d+)\.migrate)$!) {
986 $tunnel_info->{addr
} = $2;
987 die "Destination UNIX sockets VMID does not match source VMID" if $vmid ne $3;
988 $tunnel_info->{proto
} = $1;
990 elsif ($line =~ m/^migration listens on port (\d+)$/) {
991 $tunnel_info->{addr
} = "localhost";
992 $tunnel_info->{port
} = int($1);
993 $tunnel_info->{proto
} = "tcp";
995 elsif ($line =~ m/^spice listens on port (\d+)$/) {
996 $spice_port = int($1);
998 elsif ($line =~ m/^storage migration listens on nbd:(localhost|[\d\.]+|\[[\d\.:a-fA-F]+\]):(\d+):exportname=(\S+) volume:(\S+)$/) {
1000 my $nbd_uri = "nbd:$1:$2:exportname=$3";
1001 my $targetdrive = $3;
1002 $targetdrive =~ s/drive-//g;
1004 $handle_storage_migration_listens->($targetdrive, $drivestr, $nbd_uri);
1005 } elsif ($line =~ m!^storage migration listens on nbd:unix:(/run/qemu-server/(\d+)_nbd\.migrate):exportname=(\S+) volume:(\S+)$!) {
1007 die "Destination UNIX socket's VMID does not match source VMID" if $vmid ne $2;
1008 my $nbd_unix_addr = $1;
1009 my $nbd_uri = "nbd:unix:$nbd_unix_addr:exportname=$3";
1010 my $targetdrive = $3;
1011 $targetdrive =~ s/drive-//g;
1013 $handle_storage_migration_listens->($targetdrive, $drivestr, $nbd_uri);
1014 $tunnel_info->{unix_sockets
}->{$nbd_unix_addr} = 1;
1015 } elsif ($line =~ m/^re-using replicated volume: (\S+) - (.*)$/) {
1018 $target_replicated_volumes->{$volid} = $drive;
1019 } elsif ($line =~ m/^QEMU: (.*)$/) {
1020 $self->log('info', "[$self->{node}] $1\n");
1024 $self->log('info', "[$self->{node}] $line");
1027 die "remote command failed with exit code $exitcode\n" if $exitcode;
1029 die "unable to detect remote migration address\n" if !$tunnel_info->{addr
} || !$tunnel_info->{proto
};
1031 if (scalar(keys %$target_replicated_volumes) != scalar(@online_replicated_volumes)) {
1032 die "number of replicated disks on source and target node do not match - target node too old?\n"
1035 return ($tunnel_info, $spice_port);
1038 sub phase2_start_remote_cluster
{
1039 my ($self, $vmid, $params) = @_;
1041 die "insecure migration to remote cluster not implemented\n"
1042 if $params->{migrate_opts
}->{type
} ne 'websocket';
1044 my $remote_vmid = $self->{opts
}->{remote
}->{vmid
};
1046 # like regular start but with some overhead accounted for
1047 my $timeout = PVE
::QemuServer
::Helpers
::config_aware_timeout
($self->{vmconf
}) + 10;
1049 my $res = PVE
::Tunnel
::write_tunnel
($self->{tunnel
}, $timeout, "start", $params);
1051 foreach my $drive (keys %{$res->{drives
}}) {
1052 $self->{stopnbd
} = 1;
1053 $self->{target_drive
}->{$drive}->{drivestr
} = $res->{drives
}->{$drive}->{drivestr
};
1054 my $nbd_uri = $res->{drives
}->{$drive}->{nbd_uri
};
1055 die "unexpected NBD uri for '$drive': $nbd_uri\n"
1056 if $nbd_uri !~ s!/run/qemu-server/$remote_vmid\_!/run/qemu-server/$vmid\_!;
1058 $self->{target_drive
}->{$drive}->{nbd_uri
} = $nbd_uri;
1061 return ($res->{migrate
}, $res->{spice_port
});
1065 my ($self, $vmid) = @_;
1067 my $conf = $self->{vmconf
};
1068 my $local_volumes = $self->{local_volumes
};
1070 # version > 0 for unix socket support
1071 my $nbd_protocol_version = 1;
1074 if (PVE
::QemuServer
::vga_conf_has_spice
($conf->{vga
})) {
1075 my $res = mon_cmd
($vmid, 'query-spice');
1076 $spice_ticket = $res->{ticket
};
1079 my $migration_type = $self->{opts
}->{migration_type
};
1080 my $state_uri = $migration_type eq 'insecure' ?
'tcp' : 'unix';
1084 statefile
=> $state_uri,
1085 forcemachine
=> $self->{forcemachine
},
1086 forcecpu
=> $self->{forcecpu
},
1090 spice_ticket
=> $spice_ticket,
1091 type
=> $migration_type,
1092 network
=> $self->{opts
}->{migration_network
},
1093 storagemap
=> $self->{opts
}->{storagemap
},
1094 migratedfrom
=> PVE
::INotify
::nodename
(),
1095 nbd_proto_version
=> $nbd_protocol_version,
1096 nbd
=> $self->{nbd
},
1100 my ($tunnel_info, $spice_port);
1102 my @online_local_volumes = $self->filter_local_volumes('online');
1103 $self->{storage_migration
} = 1 if scalar(@online_local_volumes);
1105 if (my $remote = $self->{opts
}->{remote
}) {
1106 my $remote_vmid = $remote->{vmid
};
1107 $params->{migrate_opts
}->{remote_node
} = $self->{node
};
1108 ($tunnel_info, $spice_port) = $self->phase2_start_remote_cluster($vmid, $params);
1109 die "only UNIX sockets are supported for remote migration\n"
1110 if $tunnel_info->{proto
} ne 'unix';
1112 my $remote_socket = $tunnel_info->{addr
};
1113 my $local_socket = $remote_socket;
1114 $local_socket =~ s/$remote_vmid/$vmid/g;
1115 $tunnel_info->{addr
} = $local_socket;
1117 $self->log('info', "Setting up tunnel for '$local_socket'");
1118 PVE
::Tunnel
::forward_unix_socket
($self->{tunnel
}, $local_socket, $remote_socket);
1120 foreach my $remote_socket (@{$tunnel_info->{unix_sockets
}}) {
1121 my $local_socket = $remote_socket;
1122 $local_socket =~ s/$remote_vmid/$vmid/g;
1123 next if $self->{tunnel
}->{forwarded
}->{$local_socket};
1124 $self->log('info', "Setting up tunnel for '$local_socket'");
1125 PVE
::Tunnel
::forward_unix_socket
($self->{tunnel
}, $local_socket, $remote_socket);
1128 ($tunnel_info, $spice_port) = $self->phase2_start_local_cluster($vmid, $params);
1130 $self->log('info', "start remote tunnel");
1131 $self->start_remote_tunnel($tunnel_info);
1134 my $migrate_uri = "$tunnel_info->{proto}:$tunnel_info->{addr}";
1135 $migrate_uri .= ":$tunnel_info->{port}"
1136 if defined($tunnel_info->{port
});
1138 if ($self->{storage_migration
}) {
1139 $self->{storage_migration_jobs
} = {};
1140 $self->log('info', "starting storage migration");
1142 die "The number of local disks does not match between the source and the destination.\n"
1143 if (scalar(keys %{$self->{target_drive
}}) != scalar(@online_local_volumes));
1144 foreach my $drive (keys %{$self->{target_drive
}}){
1145 my $target = $self->{target_drive
}->{$drive};
1146 my $nbd_uri = $target->{nbd_uri
};
1148 my $source_drive = PVE
::QemuServer
::parse_drive
($drive, $conf->{$drive});
1149 my $source_volid = $source_drive->{file
};
1151 my $bwlimit = $self->{local_volumes
}->{$source_volid}->{bwlimit
};
1152 my $bitmap = $target->{bitmap
};
1154 $self->log('info', "$drive: start migration to $nbd_uri");
1155 PVE
::QemuServer
::qemu_drive_mirror
($vmid, $drive, $nbd_uri, $vmid, undef, $self->{storage_migration_jobs
}, 'skip', undef, $bwlimit, $bitmap);
1159 $self->log('info', "starting online/live migration on $migrate_uri");
1160 $self->{livemigration
} = 1;
1163 my $defaults = PVE
::QemuServer
::load_defaults
();
1165 $self->log('info', "set migration capabilities");
1166 eval { PVE
::QemuServer
::set_migration_caps
($vmid) };
1169 my $qemu_migrate_params = {};
1171 # migrate speed can be set via bwlimit (datacenter.cfg and API) and via the
1172 # migrate_speed parameter in qm.conf - take the lower of the two.
1173 my $bwlimit = $self->get_bwlimit();
1175 my $migrate_speed = $conf->{migrate_speed
} // 0;
1176 $migrate_speed *= 1024; # migrate_speed is in MB/s, bwlimit in KB/s
1178 if ($bwlimit && $migrate_speed) {
1179 $migrate_speed = ($bwlimit < $migrate_speed) ?
$bwlimit : $migrate_speed;
1181 $migrate_speed ||= $bwlimit;
1183 $migrate_speed ||= ($defaults->{migrate_speed
} || 0) * 1024;
1185 if ($migrate_speed) {
1186 $migrate_speed *= 1024; # qmp takes migrate_speed in B/s.
1187 $self->log('info', "migration speed limit: ". render_bytes
($migrate_speed, 1) ."/s");
1189 # always set migrate speed as QEMU default to 128 MiBps == 1 Gbps, use 16 GiBps == 128 Gbps
1190 $migrate_speed = (16 << 30);
1192 $qemu_migrate_params->{'max-bandwidth'} = int($migrate_speed);
1194 my $migrate_downtime = $defaults->{migrate_downtime
};
1195 $migrate_downtime = $conf->{migrate_downtime
} if defined($conf->{migrate_downtime
});
1196 # migrate-set-parameters expects limit in ms
1197 $migrate_downtime *= 1000;
1198 $self->log('info', "migration downtime limit: $migrate_downtime ms");
1199 $qemu_migrate_params->{'downtime-limit'} = int($migrate_downtime);
1201 # set cachesize to 10% of the total memory
1202 my $memory = $conf->{memory
} || $defaults->{memory
};
1203 my $cachesize = int($memory * 1048576 / 10);
1204 $cachesize = round_powerof2
($cachesize);
1206 $self->log('info', "migration cachesize: " . render_bytes
($cachesize, 1));
1207 $qemu_migrate_params->{'xbzrle-cache-size'} = int($cachesize);
1209 $self->log('info', "set migration parameters");
1211 mon_cmd
($vmid, "migrate-set-parameters", %{$qemu_migrate_params});
1213 $self->log('info', "migrate-set-parameters error: $@") if $@;
1215 if (PVE
::QemuServer
::vga_conf_has_spice
($conf->{vga
}) && !$self->{opts
}->{remote
}) {
1216 my $rpcenv = PVE
::RPCEnvironment
::get
();
1217 my $authuser = $rpcenv->get_user();
1219 my (undef, $proxyticket) = PVE
::AccessControl
::assemble_spice_ticket
($authuser, $vmid, $self->{node
});
1221 my $filename = "/etc/pve/nodes/$self->{node}/pve-ssl.pem";
1222 my $subject = PVE
::AccessControl
::read_x509_subject_spice
($filename);
1224 $self->log('info', "spice client_migrate_info");
1227 mon_cmd
($vmid, "client_migrate_info", protocol
=> 'spice',
1228 hostname
=> $proxyticket, 'port' => 0, 'tls-port' => $spice_port,
1229 'cert-subject' => $subject);
1231 $self->log('info', "client_migrate_info error: $@") if $@;
1237 $self->log('info', "start migrate command to $migrate_uri");
1239 mon_cmd
($vmid, "migrate", uri
=> $migrate_uri);
1242 $self->log('info', "migrate uri => $migrate_uri failed: $merr") if $merr;
1244 my $last_mem_transferred = 0;
1245 my $usleep = 1000000;
1248 my $lastrem = undef;
1249 my $downtimecounter = 0;
1252 my $avglstat = $last_mem_transferred ?
$last_mem_transferred / $i : 0;
1256 my $stat = eval { mon_cmd
($vmid, "query-migrate") };
1259 warn "query migrate failed: $err\n";
1260 $self->log('info', "query migrate failed: $err");
1261 if ($err_count <= 5) {
1265 die "too many query migrate failures - aborting\n";
1268 my $status = $stat->{status
};
1269 if (defined($status) && $status =~ m/^(setup)$/im) {
1274 if (!defined($status) || $status !~ m/^(active|completed|failed|cancelled)$/im) {
1276 die "unable to parse migration status '$status' - aborting\n";
1281 my $memstat = $stat->{ram
};
1283 if ($status eq 'completed') {
1284 my $delay = time() - $start;
1286 my $total = $memstat->{total
} || 0;
1287 my $avg_speed = render_bytes
($total / $delay, 1);
1288 my $downtime = $stat->{downtime
} || 0;
1289 $self->log('info', "average migration speed: $avg_speed/s - downtime $downtime ms");
1293 if ($status eq 'failed' || $status eq 'cancelled') {
1294 my $message = $stat->{'error-desc'} ?
"$status - $stat->{'error-desc'}" : $status;
1295 $self->log('info', "migration status error: $message");
1299 if ($status ne 'active') {
1300 $self->log('info', "migration status: $status");
1304 if ($memstat->{transferred
} ne $last_mem_transferred) {
1305 my $trans = $memstat->{transferred
} || 0;
1306 my $rem = $memstat->{remaining
} || 0;
1307 my $total = $memstat->{total
} || 0;
1308 my $speed = ($memstat->{'pages-per-second'} // 0) * ($memstat->{'page-size'} // 0);
1309 my $dirty_rate = ($memstat->{'dirty-pages-rate'} // 0) * ($memstat->{'page-size'} // 0);
1311 # reduce sleep if remainig memory is lower than the average transfer speed
1312 $usleep = 100_000 if $avglstat && $rem < $avglstat;
1314 # also reduce loggin if we poll more frequent
1315 my $should_log = $usleep > 100_000 ?
1 : ($i % 10) == 0;
1317 my $total_h = render_bytes
($total, 1);
1318 my $transferred_h = render_bytes
($trans, 1);
1319 my $speed_h = render_bytes
($speed, 1);
1321 my $progress = "transferred $transferred_h of $total_h VM-state, ${speed_h}/s";
1323 if ($dirty_rate > $speed) {
1324 my $dirty_rate_h = render_bytes
($dirty_rate, 1);
1325 $progress .= ", VM dirties lots of memory: $dirty_rate_h/s";
1328 $self->log('info', "migration $status, $progress") if $should_log;
1330 my $xbzrle = $stat->{"xbzrle-cache"} || {};
1331 my ($xbzrlebytes, $xbzrlepages) = $xbzrle->@{'bytes', 'pages'};
1332 if ($xbzrlebytes || $xbzrlepages) {
1333 my $bytes_h = render_bytes
($xbzrlebytes, 1);
1335 my $msg = "send updates to $xbzrlepages pages in $bytes_h encoded memory";
1337 $msg .= sprintf(", cache-miss %.2f%%", $xbzrle->{'cache-miss-rate'} * 100)
1338 if $xbzrle->{'cache-miss-rate'};
1340 $msg .= ", overflow $xbzrle->{overflow}" if $xbzrle->{overflow
};
1342 $self->log('info', "xbzrle: $msg") if $should_log;
1345 if (($lastrem && $rem > $lastrem) || ($rem == 0)) {
1350 if ($downtimecounter > 5) {
1351 $downtimecounter = 0;
1352 $migrate_downtime *= 2;
1353 $self->log('info', "auto-increased downtime to continue migration: $migrate_downtime ms");
1355 # migrate-set-parameters does not touch values not
1356 # specified, so this only changes downtime-limit
1357 mon_cmd
($vmid, "migrate-set-parameters", 'downtime-limit' => int($migrate_downtime));
1359 $self->log('info', "migrate-set-parameters error: $@") if $@;
1363 $last_mem_transferred = $memstat->{transferred
};
1366 if ($self->{storage_migration
}) {
1367 # finish block-job with block-job-cancel, to disconnect source VM from NBD
1368 # to avoid it trying to re-establish it. We are in blockjob ready state,
1369 # thus, this command changes to it to blockjob complete (see qapi docs)
1370 eval { PVE
::QemuServer
::qemu_drive_mirror_monitor
($vmid, undef, $self->{storage_migration_jobs
}, 'cancel'); };
1372 die "Failed to complete storage migration: $err\n";
1377 sub phase2_cleanup
{
1378 my ($self, $vmid, $err) = @_;
1380 return if !$self->{errors
};
1381 $self->{phase2errors
} = 1;
1383 $self->log('info', "aborting phase 2 - cleanup resources");
1385 $self->log('info', "migrate_cancel");
1387 mon_cmd
($vmid, "migrate_cancel");
1389 $self->log('info', "migrate_cancel error: $@") if $@;
1391 my $vm_status = eval {
1392 mon_cmd
($vmid, 'query-status')->{status
} or die "no 'status' in result\n";
1394 $self->log('err', "query-status error: $@") if $@;
1396 # Can end up in POSTMIGRATE state if failure occurred after convergence. Try going back to
1397 # original state. Unfortunately, direct transition from POSTMIGRATE to PAUSED is not possible.
1398 if ($vm_status && $vm_status eq 'postmigrate') {
1399 if (!$self->{vm_was_paused
}) {
1400 eval { mon_cmd
($vmid, 'cont'); };
1401 $self->log('err', "resuming VM failed: $@") if $@;
1403 $self->log('err', "VM was paused, but ended in postmigrate state");
1407 my $conf = $self->{vmconf
};
1408 delete $conf->{lock};
1409 eval { PVE
::QemuConfig-
>write_config($vmid, $conf) };
1411 $self->log('err', $err);
1414 # cleanup ressources on target host
1415 if ($self->{storage_migration
}) {
1416 eval { PVE
::QemuServer
::qemu_blockjobs_cancel
($vmid, $self->{storage_migration_jobs
}) };
1418 $self->log('err', $err);
1422 eval { $self->cleanup_bitmaps() };
1424 $self->log('err', $err);
1427 my $nodename = PVE
::INotify
::nodename
();
1429 if ($self->{tunnel
} && $self->{tunnel
}->{version
} >= 2) {
1430 PVE
::Tunnel
::write_tunnel
($self->{tunnel
}, 10, 'stop');
1432 my $cmd = [@{$self->{rem_ssh
}}, 'qm', 'stop', $vmid, '--skiplock', '--migratedfrom', $nodename];
1433 eval{ PVE
::Tools
::run_command
($cmd, outfunc
=> sub {}, errfunc
=> sub {}) };
1435 $self->log('err', $err);
1436 $self->{errors
} = 1;
1440 # cleanup after stopping, otherwise disks might be in-use by target VM!
1441 eval { PVE
::QemuMigrate
::cleanup_remotedisks
($self) };
1443 $self->log('err', $err);
1447 if ($self->{tunnel
}) {
1448 eval { PVE
::Tunnel
::finish_tunnel
($self->{tunnel
}); };
1450 $self->log('err', $err);
1451 $self->{errors
} = 1;
1457 my ($self, $vmid) = @_;
1462 sub phase3_cleanup
{
1463 my ($self, $vmid, $err) = @_;
1465 my $conf = $self->{vmconf
};
1466 return if $self->{phase2errors
};
1468 my $tunnel = $self->{tunnel
};
1470 if ($self->{volume_map
} && !$self->{opts
}->{remote
}) {
1471 my $target_drives = $self->{target_drive
};
1473 # FIXME: for NBD storage migration we now only update the volid, and
1474 # not the full drivestr from the target node. Workaround that until we
1475 # got some real rescan, to avoid things like wrong format in the drive
1476 delete $conf->{$_} for keys %$target_drives;
1477 PVE
::QemuConfig-
>update_volume_ids($conf, $self->{volume_map
});
1479 for my $drive (keys %$target_drives) {
1480 $conf->{$drive} = $target_drives->{$drive}->{drivestr
};
1482 PVE
::QemuConfig-
>write_config($vmid, $conf);
1485 # transfer replication state before move config
1486 if (!$self->{opts
}->{remote
}) {
1487 $self->transfer_replication_state() if $self->{is_replicated
};
1488 PVE
::QemuConfig-
>move_config_to_node($vmid, $self->{node
});
1489 $self->switch_replication_job_target() if $self->{is_replicated
};
1492 if ($self->{livemigration
}) {
1493 if ($self->{stopnbd
}) {
1494 $self->log('info', "stopping NBD storage migration server on target.");
1495 # stop nbd server on remote vm - requirement for resume since 2.9
1496 if ($tunnel && $tunnel->{version
} && $tunnel->{version
} >= 2) {
1497 PVE
::Tunnel
::write_tunnel
($tunnel, 30, 'nbdstop');
1499 my $cmd = [@{$self->{rem_ssh
}}, 'qm', 'nbdstop', $vmid];
1501 eval{ PVE
::Tools
::run_command
($cmd, outfunc
=> sub {}, errfunc
=> sub {}) };
1503 $self->log('err', $err);
1504 $self->{errors
} = 1;
1509 # deletes local FDB entries if learning is disabled, they'll be re-added on target on resume
1510 PVE
::QemuServer
::del_nets_bridge_fdb
($conf, $vmid);
1512 if (!$self->{vm_was_paused
}) {
1513 # config moved and nbd server stopped - now we can resume vm on target
1514 if ($tunnel && $tunnel->{version
} && $tunnel->{version
} >= 1) {
1515 my $cmd = $tunnel->{version
} == 1 ?
"resume $vmid" : "resume";
1517 PVE
::Tunnel
::write_tunnel
($tunnel, 30, $cmd);
1520 $self->log('err', $err);
1521 $self->{errors
} = 1;
1524 # nocheck in case target node hasn't processed the config move/rename yet
1525 my $cmd = [@{$self->{rem_ssh
}}, 'qm', 'resume', $vmid, '--skiplock', '--nocheck'];
1528 $self->log('err', $line);
1530 eval { PVE
::Tools
::run_command
($cmd, outfunc
=> sub {}, errfunc
=> $logf); };
1532 $self->log('err', $err);
1533 $self->{errors
} = 1;
1539 $self->{storage_migration
}
1540 && PVE
::QemuServer
::parse_guest_agent
($conf)->{fstrim_cloned_disks
}
1543 if (!$self->{vm_was_paused
}) {
1544 $self->log('info', "issuing guest fstrim");
1545 if ($self->{opts
}->{remote
}) {
1546 PVE
::Tunnel
::write_tunnel
($self->{tunnel
}, 600, 'fstrim');
1548 my $cmd = [@{$self->{rem_ssh
}}, 'qm', 'guest', 'cmd', $vmid, 'fstrim'];
1549 eval{ PVE
::Tools
::run_command
($cmd, outfunc
=> sub {}, errfunc
=> sub {}) };
1551 $self->log('err', "fstrim failed - $err");
1552 $self->{errors
} = 1;
1556 $self->log('info', "skipping guest fstrim, because VM is paused");
1561 # close tunnel on successful migration, on error phase2_cleanup closed it
1562 if ($tunnel && $tunnel->{version
} == 1) {
1563 eval { PVE
::Tunnel
::finish_tunnel
($tunnel); };
1565 $self->log('err', $err);
1566 $self->{errors
} = 1;
1569 delete $self->{tunnel
};
1574 if (PVE
::QemuServer
::vga_conf_has_spice
($conf->{vga
}) && $self->{running
}) {
1575 $self->log('info', "Waiting for spice server migration");
1577 my $res = mon_cmd
($vmid, 'query-spice');
1578 last if int($res->{'migrated'}) == 1;
1579 last if $timer > 50;
1586 # always stop local VM with nocheck, since config is moved already
1587 eval { PVE
::QemuServer
::vm_stop
($self->{storecfg
}, $vmid, 1, 1); };
1589 $self->log('err', "stopping vm failed - $err");
1590 $self->{errors
} = 1;
1593 # always deactivate volumes - avoid lvm LVs to be active on several nodes
1595 my $vollist = PVE
::QemuServer
::get_vm_volumes
($conf);
1596 PVE
::Storage
::deactivate_volumes
($self->{storecfg
}, $vollist);
1599 $self->log('err', $err);
1600 $self->{errors
} = 1;
1603 my @not_replicated_volumes = $self->filter_local_volumes(undef, 0);
1605 # destroy local copies
1606 foreach my $volid (@not_replicated_volumes) {
1607 # remote is cleaned up below
1608 next if $self->{opts
}->{remote
};
1610 eval { PVE
::Storage
::vdisk_free
($self->{storecfg
}, $volid); };
1612 $self->log('err', "removing local copy of '$volid' failed - $err");
1613 $self->{errors
} = 1;
1614 last if $err =~ /^interrupted by signal$/;
1618 # clear migrate lock
1619 if ($tunnel && $tunnel->{version
} >= 2) {
1620 PVE
::Tunnel
::write_tunnel
($tunnel, 10, "unlock");
1622 PVE
::Tunnel
::finish_tunnel
($tunnel);
1624 my $cmd = [ @{$self->{rem_ssh
}}, 'qm', 'unlock', $vmid ];
1625 $self->cmd_logerr($cmd, errmsg
=> "failed to clear migrate lock");
1628 if ($self->{opts
}->{remote
} && $self->{opts
}->{delete}) {
1629 eval { PVE
::QemuServer
::destroy_vm
($self->{storecfg
}, $vmid, 1, undef, 0) };
1630 warn "Failed to remove source VM - $@\n" if $@;
1635 my ($self, $vmid) = @_;
1640 sub round_powerof2
{
1641 return 1 if $_[0] < 2;
1642 return 2 << int(log($_[0]-1)/log(2));