1 package PVE
::QemuMigrate
;
5 use PVE
::AbstractMigrate
;
8 use POSIX
qw( WNOHANG );
14 use Time
::HiRes
qw( usleep );
15 use PVE
::RPCEnvironment
;
17 use base
qw(PVE::AbstractMigrate);
19 sub fork_command_pipe
{
20 my ($self, $cmd) = @_;
22 my $reader = IO
::File-
>new();
23 my $writer = IO
::File-
>new();
29 eval { $cpid = open2
($reader, $writer, @$cmd); };
34 if ($orig_pid != $$) {
35 $self->log('err', "can't fork command pipe\n");
42 return { writer
=> $writer, reader
=> $reader, pid
=> $cpid };
45 sub finish_command_pipe
{
46 my ($self, $cmdpipe, $timeout) = @_;
48 my $cpid = $cmdpipe->{pid
};
49 return if !defined($cpid);
51 my $writer = $cmdpipe->{writer
};
52 my $reader = $cmdpipe->{reader
};
57 my $collect_child_process = sub {
58 my $res = waitpid($cpid, WNOHANG
);
59 if (defined($res) && ($res == $cpid)) {
60 delete $cmdpipe->{cpid
};
68 for (my $i = 0; $i < $timeout; $i++) {
69 return if &$collect_child_process();
74 $self->log('info', "ssh tunnel still running - terminating now with SIGTERM\n");
78 for (my $i = 0; $i < 10; $i++) {
79 return if &$collect_child_process();
83 $self->log('info', "ssh tunnel still running - terminating now with SIGKILL\n");
87 $self->log('err', "ssh tunnel child process (PID $cpid) couldn't be collected\n")
88 if !&$collect_child_process();
92 my ($self, $tunnel_addr) = @_;
94 my @localtunnelinfo = defined($tunnel_addr) ?
('-L' , $tunnel_addr ) : ();
96 my $cmd = [@{$self->{rem_ssh
}}, '-o ExitOnForwardFailure=yes', @localtunnelinfo, 'qm', 'mtunnel' ];
98 my $tunnel = $self->fork_command_pipe($cmd);
100 my $reader = $tunnel->{reader
};
104 PVE
::Tools
::run_with_timeout
(60, sub { $helo = <$reader>; });
105 die "no reply\n" if !$helo;
106 die "no quorum on target node\n" if $helo =~ m/^no quorum$/;
107 die "got strange reply from mtunnel ('$helo')\n"
108 if $helo !~ m/^tunnel online$/;
113 $self->finish_command_pipe($tunnel);
114 die "can't open migration tunnel - $err";
120 my ($self, $tunnel) = @_;
122 my $writer = $tunnel->{writer
};
125 PVE
::Tools
::run_with_timeout
(30, sub {
126 print $writer "quit\n";
132 $self->finish_command_pipe($tunnel, 30);
134 if ($tunnel->{sock_addr
}) {
135 # ssh does not clean up on local host
136 my $cmd = ['rm', '-f', $tunnel->{sock_addr
}]; #
137 PVE
::Tools
::run_command
($cmd);
139 # .. and just to be sure check on remote side
140 unshift @{$cmd}, @{$self->{rem_ssh
}};
141 PVE
::Tools
::run_command
($cmd);
148 my ($self, $vmid, $code, @param) = @_;
150 return PVE
::QemuConfig-
>lock_config($vmid, $code, @param);
154 my ($self, $vmid) = @_;
156 my $online = $self->{opts
}->{online
};
158 $self->{storecfg
} = PVE
::Storage
::config
();
161 my $conf = $self->{vmconf
} = PVE
::QemuConfig-
>load_config($vmid);
163 PVE
::QemuConfig-
>check_lock($conf);
166 if (my $pid = PVE
::QemuServer
::check_running
($vmid)) {
167 die "can't migrate running VM without --online\n" if !$online;
170 $self->{forcemachine
} = PVE
::QemuServer
::qemu_machine_pxe
($vmid, $conf);
174 if (my $loc_res = PVE
::QemuServer
::check_local_resources
($conf, 1)) {
175 if ($self->{running
} || !$self->{opts
}->{force
}) {
176 die "can't migrate VM which uses local devices\n";
178 $self->log('info', "migrating VM which uses local devices");
182 my $vollist = PVE
::QemuServer
::get_vm_volumes
($conf);
184 my $need_activate = [];
185 foreach my $volid (@$vollist) {
186 my ($sid, $volname) = PVE
::Storage
::parse_volume_id
($volid, 1);
188 # check if storage is available on both nodes
189 my $targetsid = $self->{opts
}->{targetstorage
} ?
$self->{opts
}->{targetstorage
} : $sid;
191 my $scfg = PVE
::Storage
::storage_check_node
($self->{storecfg
}, $sid);
192 PVE
::Storage
::storage_check_node
($self->{storecfg
}, $targetsid, $self->{node
});
194 if ($scfg->{shared
}) {
195 # PVE::Storage::activate_storage checks this for non-shared storages
196 my $plugin = PVE
::Storage
::Plugin-
>lookup($scfg->{type
});
197 warn "Used shared storage '$sid' is not online on source node!\n"
198 if !$plugin->check_connection($sid, $scfg);
200 # only activate if not shared
201 push @$need_activate, $volid;
206 PVE
::Storage
::activate_volumes
($self->{storecfg
}, $need_activate);
208 # test ssh connection
209 my $cmd = [ @{$self->{rem_ssh
}}, '/bin/true' ];
210 eval { $self->cmd_quiet($cmd); };
211 die "Can't connect to destination address using public key\n" if $@;
217 my ($self, $vmid) = @_;
219 my $conf = $self->{vmconf
};
221 # local volumes which have been copied
222 $self->{volumes
} = [];
228 # found local volumes and their origin
229 my $local_volumes = {};
230 my $local_volumes_errors = {};
231 my $other_errors = [];
236 my $log_error = sub {
237 my ($msg, $volid) = @_;
239 if (defined($volid)) {
240 $local_volumes_errors->{$volid} = $msg;
242 push @$other_errors, $msg;
247 my @sids = PVE
::Storage
::storage_ids
($self->{storecfg
});
248 foreach my $storeid (@sids) {
249 my $scfg = PVE
::Storage
::storage_config
($self->{storecfg
}, $storeid);
250 next if $scfg->{shared
};
251 next if !PVE
::Storage
::storage_check_enabled
($self->{storecfg
}, $storeid, undef, 1);
253 # get list from PVE::Storage (for unused volumes)
254 my $dl = PVE
::Storage
::vdisk_list
($self->{storecfg
}, $storeid, $vmid);
256 next if @{$dl->{$storeid}} == 0;
258 my $targetsid = $self->{opts
}->{targetstorage
} ?
$self->{opts
}->{targetstorage
} : $storeid;
260 # check if storage is available on target node
261 PVE
::Storage
::storage_check_node
($self->{storecfg
}, $targetsid, $self->{node
});
262 $sharedvm = 0; # there is a non-shared disk
264 PVE
::Storage
::foreach_volid
($dl, sub {
265 my ($volid, $sid, $volname) = @_;
267 $local_volumes->{$volid} = 'storage';
271 my $test_volid = sub {
272 my ($volid, $is_cdrom, $snapname) = @_;
276 if ($volid =~ m
|^/|) {
277 $local_volumes->{$volid} = 'config';
278 die "local file/device\n";
282 if ($volid eq 'cdrom') {
283 my $msg = "can't migrate local cdrom drive";
284 $msg .= " (referenced in snapshot '$snapname')"
285 if defined($snapname);
287 &$log_error("$msg\n");
290 return if $volid eq 'none';
293 my ($sid, $volname) = PVE
::Storage
::parse_volume_id
($volid);
295 my $targetsid = $self->{opts
}->{targetstorage
} ?
$self->{opts
}->{targetstorage
} : $sid;
296 # check if storage is available on both nodes
297 my $scfg = PVE
::Storage
::storage_check_node
($self->{storecfg
}, $sid);
298 PVE
::Storage
::storage_check_node
($self->{storecfg
}, $targetsid, $self->{node
});
300 return if $scfg->{shared
};
304 $local_volumes->{$volid} = defined($snapname) ?
'snapshot' : 'config';
306 die "local cdrom image\n" if $is_cdrom;
308 my ($path, $owner) = PVE
::Storage
::path
($self->{storecfg
}, $volid);
310 die "owned by other VM (owner = VM $owner)\n"
311 if !$owner || ($owner != $self->{vmid
});
313 if (defined($snapname)) {
314 # we cannot migrate shapshots on local storage
315 # exceptions: 'zfspool' or 'qcow2' files (on directory storage)
317 my $format = PVE
::QemuServer
::qemu_img_format
($scfg, $volname);
318 die "online storage migration not possible if snapshot exists\n" if $self->{running
};
319 if (!($scfg->{type
} eq 'zfspool' || $format eq 'qcow2')) {
320 die "non-migratable snapshot exists\n";
324 die "referenced by linked clone(s)\n"
325 if PVE
::Storage
::volume_is_base_and_used
($self->{storecfg
}, $volid);
328 my $test_drive = sub {
329 my ($ds, $drive, $snapname) = @_;
332 &$test_volid($drive->{file
}, PVE
::QemuServer
::drive_is_cdrom
($drive), $snapname);
335 &$log_error($@, $drive->{file
}) if $@;
338 foreach my $snapname (keys %{$conf->{snapshots
}}) {
340 &$test_volid($conf->{snapshots
}->{$snapname}->{'vmstate'}, 0, undef)
341 if defined($conf->{snapshots
}->{$snapname}->{'vmstate'});
343 &$log_error($@, $conf->{snapshots
}->{$snapname}->{'vmstate'}) if $@;
345 PVE
::QemuServer
::foreach_drive
($conf->{snapshots
}->{$snapname}, $test_drive, $snapname);
347 PVE
::QemuServer
::foreach_drive
($conf, $test_drive);
349 foreach my $vol (sort keys %$local_volumes) {
350 if ($local_volumes->{$vol} eq 'storage') {
351 $self->log('info', "found local disk '$vol' (via storage)\n");
352 } elsif ($local_volumes->{$vol} eq 'config') {
353 die "can't live migrate attached local disks without with-local-disks option\n" if $self->{running
} && !$self->{opts
}->{"with-local-disks"};
354 $self->log('info', "found local disk '$vol' (in current VM config)\n");
355 } elsif ($local_volumes->{$vol} eq 'snapshot') {
356 $self->log('info', "found local disk '$vol' (referenced by snapshot(s))\n");
358 $self->log('info', "found local disk '$vol'\n");
362 foreach my $vol (sort keys %$local_volumes_errors) {
363 $self->log('warn', "can't migrate local disk '$vol': $local_volumes_errors->{$vol}");
365 foreach my $err (@$other_errors) {
366 $self->log('warn', "$err");
369 if ($self->{running
} && !$sharedvm && !$self->{opts
}->{targetstorage
}) {
370 $self->{opts
}->{targetstorage
} = 1; #use same sid for remote local
374 die "can't migrate VM - check log\n";
377 # additional checks for local storage
378 foreach my $volid (keys %$local_volumes) {
379 my ($sid, $volname) = PVE
::Storage
::parse_volume_id
($volid);
380 my $scfg = PVE
::Storage
::storage_config
($self->{storecfg
}, $sid);
382 my $migratable = ($scfg->{type
} eq 'dir') || ($scfg->{type
} eq 'zfspool') ||
383 ($scfg->{type
} eq 'lvmthin') || ($scfg->{type
} eq 'lvm');
385 die "can't migrate '$volid' - storage type '$scfg->{type}' not supported\n"
388 # image is a linked clone on local storage, se we can't migrate.
389 if (my $basename = (PVE
::Storage
::parse_volname
($self->{storecfg
}, $volid))[3]) {
390 die "can't migrate '$volid' as it's a clone of '$basename'";
394 $self->log('info', "copying disk images");
396 foreach my $volid (keys %$local_volumes) {
397 my ($sid, $volname) = PVE
::Storage
::parse_volume_id
($volid);
398 if ($self->{running
} && $self->{opts
}->{targetstorage
} && $local_volumes->{$volid} eq 'config') {
399 push @{$self->{online_local_volumes
}}, $volid;
401 push @{$self->{volumes
}}, $volid;
402 my $insecure = $self->{opts
}->{migration_type
} eq 'insecure';
403 PVE
::Storage
::storage_migrate
($self->{storecfg
}, $volid, $self->{ssh_info
}, $sid, undef, undef, undef, undef, $insecure);
407 die "Failed to sync data - $@" if $@;
410 sub cleanup_remotedisks
{
413 foreach my $target_drive (keys %{$self->{target_drive
}}) {
415 my $drive = PVE
::QemuServer
::parse_drive
($target_drive, $self->{target_drive
}->{$target_drive}->{volid
});
416 my ($storeid, $volname) = PVE
::Storage
::parse_volume_id
($drive->{file
});
418 my $cmd = [@{$self->{rem_ssh
}}, 'pvesm', 'free', "$storeid:$volname"];
420 eval{ PVE
::Tools
::run_command
($cmd, outfunc
=> sub {}, errfunc
=> sub {}) };
422 $self->log('err', $err);
429 my ($self, $vmid) = @_;
431 $self->log('info', "starting migration of VM $vmid to node '$self->{node}' ($self->{nodeip})");
433 my $conf = $self->{vmconf
};
435 # set migrate lock in config file
436 $conf->{lock} = 'migrate';
437 PVE
::QemuConfig-
>write_config($vmid, $conf);
439 # we use TCP only for unsecure migrations as TCP ssh forward tunnels often
440 # did appeared to late (they are hard, if not impossible, to check for)
441 # secure migration use UNIX sockets now, this *breaks* compatibilty when trying
442 # to migrate from new to old but *not* from old to new.
443 my $datacenterconf = PVE
::Cluster
::cfs_read_file
('datacenter.cfg');
445 my $migration_type = 'secure';
446 if (defined($self->{opts
}->{migration_type
})) {
447 $migration_type = $self->{opts
}->{migration_type
};
448 } elsif (defined($datacenterconf->{migration
}->{type
})) {
449 $migration_type = $datacenterconf->{migration
}->{type
};
451 $self->{opts
}->{migration_type
} = $migration_type;
453 sync_disks
($self, $vmid);
458 my ($self, $vmid, $err) = @_;
460 $self->log('info', "aborting phase 1 - cleanup resources");
462 my $conf = $self->{vmconf
};
463 delete $conf->{lock};
464 eval { PVE
::QemuConfig-
>write_config($vmid, $conf) };
466 $self->log('err', $err);
469 if ($self->{volumes
}) {
470 foreach my $volid (@{$self->{volumes
}}) {
471 $self->log('err', "found stale volume copy '$volid' on node '$self->{node}'");
472 # fixme: try to remove ?
478 my ($self, $vmid) = @_;
480 my $conf = $self->{vmconf
};
482 $self->log('info', "starting VM $vmid on remote node '$self->{node}'");
486 my $ruri; # the whole migration dst. URI (protocol:address[:port])
487 my $nodename = PVE
::INotify
::nodename
();
489 ## start on remote node
490 my $cmd = [@{$self->{rem_ssh
}}];
493 if (PVE
::QemuServer
::vga_conf_has_spice
($conf->{vga
})) {
494 my $res = PVE
::QemuServer
::vm_mon_cmd
($vmid, 'query-spice');
495 $spice_ticket = $res->{ticket
};
498 push @$cmd , 'qm', 'start', $vmid, '--skiplock', '--migratedfrom', $nodename;
500 my $migration_type = $self->{opts
}->{migration_type
};
502 push @$cmd, '--migration_type', $migration_type;
504 push @$cmd, '--migration_network', $self->{opts
}->{migration_network
}
505 if $self->{opts
}->{migration_network
};
507 if ($migration_type eq 'insecure') {
508 push @$cmd, '--stateuri', 'tcp';
510 push @$cmd, '--stateuri', 'unix';
513 if ($self->{forcemachine
}) {
514 push @$cmd, '--machine', $self->{forcemachine
};
517 if ($self->{opts
}->{targetstorage
}) {
518 push @$cmd, '--targetstorage', $self->{opts
}->{targetstorage
};
523 # Note: We try to keep $spice_ticket secret (do not pass via command line parameter)
524 # instead we pipe it through STDIN
525 PVE
::Tools
::run_command
($cmd, input
=> $spice_ticket, outfunc
=> sub {
528 if ($line =~ m/^migration listens on tcp:(localhost|[\d\.]+|\[[\d\.:a-fA-F]+\]):(\d+)$/) {
531 $ruri = "tcp:$raddr:$rport";
533 elsif ($line =~ m!^migration listens on unix:(/run/qemu-server/(\d+)\.migrate)$!) {
535 die "Destination UNIX sockets VMID does not match source VMID" if $vmid ne $2;
536 $ruri = "unix:$raddr";
538 elsif ($line =~ m/^migration listens on port (\d+)$/) {
539 $raddr = "localhost";
541 $ruri = "tcp:$raddr:$rport";
543 elsif ($line =~ m/^spice listens on port (\d+)$/) {
544 $spice_port = int($1);
546 elsif ($line =~ m/^storage migration listens on nbd:(localhost|[\d\.]+|\[[\d\.:a-fA-F]+\]):(\d+):exportname=(\S+) volume:(\S+)$/) {
548 my $nbd_uri = "nbd:$1:$2:exportname=$3";
549 my $targetdrive = $3;
550 $targetdrive =~ s/drive-//g;
552 $self->{target_drive
}->{$targetdrive}->{volid
} = $volid;
553 $self->{target_drive
}->{$targetdrive}->{nbd_uri
} = $nbd_uri;
558 $self->log('info', $line);
561 die "unable to detect remote migration address\n" if !$raddr;
563 if ($migration_type eq 'secure') {
564 $self->log('info', "start remote tunnel");
566 if ($ruri =~ /^unix:/) {
568 $self->{tunnel
} = $self->fork_tunnel("$raddr:$raddr");
569 $self->{tunnel
}->{sock_addr
} = $raddr;
571 my $unix_socket_try = 0; # wait for the socket to become ready
572 while (! -S
$raddr) {
574 if ($unix_socket_try > 100) {
576 $self->finish_tunnel($self->{tunnel
});
577 die "Timeout, migration socket $ruri did not get ready";
583 } elsif ($ruri =~ /^tcp:/) {
585 if ($raddr eq "localhost") {
586 # for backwards compatibility with older qemu-server versions
587 my $pfamily = PVE
::Tools
::get_host_address_family
($nodename);
588 my $lport = PVE
::Tools
::next_migrate_port
($pfamily);
589 $tunnel_addr = "$lport:localhost:$rport";
592 $self->{tunnel
} = $self->fork_tunnel($tunnel_addr);
595 die "unsupported protocol in migration URI: $ruri\n";
601 if ($self->{opts
}->{targetstorage
} && defined($self->{online_local_volumes
})) {
602 $self->{storage_migration
} = 1;
603 $self->{storage_migration_jobs
} = {};
604 $self->log('info', "starting storage migration");
606 die "The number of local disks does not match between the source and the destination.\n"
607 if (scalar(keys %{$self->{target_drive
}}) != scalar @{$self->{online_local_volumes
}});
608 foreach my $drive (keys %{$self->{target_drive
}}){
609 my $nbd_uri = $self->{target_drive
}->{$drive}->{nbd_uri
};
610 $self->log('info', "$drive: start migration to to $nbd_uri");
611 PVE
::QemuServer
::qemu_drive_mirror
($vmid, $drive, $nbd_uri, $vmid, undef, $self->{storage_migration_jobs
}, 1);
615 $self->log('info', "starting online/live migration on $ruri");
616 $self->{livemigration
} = 1;
619 my $defaults = PVE
::QemuServer
::load_defaults
();
621 # always set migrate speed (overwrite kvm default of 32m)
622 # we set a very hight default of 8192m which is basically unlimited
623 my $migrate_speed = $defaults->{migrate_speed
} || 8192;
624 $migrate_speed = $conf->{migrate_speed
} || $migrate_speed;
625 $migrate_speed = $migrate_speed * 1048576;
626 $self->log('info', "migrate_set_speed: $migrate_speed");
628 PVE
::QemuServer
::vm_mon_cmd_nocheck
($vmid, "migrate_set_speed", value
=> int($migrate_speed));
630 $self->log('info', "migrate_set_speed error: $@") if $@;
632 my $migrate_downtime = $defaults->{migrate_downtime
};
633 $migrate_downtime = $conf->{migrate_downtime
} if defined($conf->{migrate_downtime
});
634 if (defined($migrate_downtime)) {
635 $self->log('info', "migrate_set_downtime: $migrate_downtime");
637 PVE
::QemuServer
::vm_mon_cmd_nocheck
($vmid, "migrate_set_downtime", value
=> int($migrate_downtime*100)/100);
639 $self->log('info', "migrate_set_downtime error: $@") if $@;
642 $self->log('info', "set migration_caps");
644 PVE
::QemuServer
::set_migration_caps
($vmid);
648 #set cachesize 10% of the total memory
649 my $cachesize = int($conf->{memory
}*1048576/10);
650 $self->log('info', "set cachesize: $cachesize");
652 PVE
::QemuServer
::vm_mon_cmd_nocheck
($vmid, "migrate-set-cache-size", value
=> int($cachesize));
654 $self->log('info', "migrate-set-cache-size error: $@") if $@;
656 if (PVE
::QemuServer
::vga_conf_has_spice
($conf->{vga
})) {
657 my $rpcenv = PVE
::RPCEnvironment
::get
();
658 my $authuser = $rpcenv->get_user();
660 my (undef, $proxyticket) = PVE
::AccessControl
::assemble_spice_ticket
($authuser, $vmid, $self->{node
});
662 my $filename = "/etc/pve/nodes/$self->{node}/pve-ssl.pem";
663 my $subject = PVE
::AccessControl
::read_x509_subject_spice
($filename);
665 $self->log('info', "spice client_migrate_info");
668 PVE
::QemuServer
::vm_mon_cmd_nocheck
($vmid, "client_migrate_info", protocol
=> 'spice',
669 hostname
=> $proxyticket, 'tls-port' => $spice_port,
670 'cert-subject' => $subject);
672 $self->log('info', "client_migrate_info error: $@") if $@;
676 $self->log('info', "start migrate command to $ruri");
678 PVE
::QemuServer
::vm_mon_cmd_nocheck
($vmid, "migrate", uri
=> $ruri);
681 $self->log('info', "migrate uri => $ruri failed: $merr") if $merr;
684 my $usleep = 2000000;
688 my $downtimecounter = 0;
691 my $avglstat = $lstat/$i if $lstat;
696 $stat = PVE
::QemuServer
::vm_mon_cmd_nocheck
($vmid, "query-migrate");
700 warn "query migrate failed: $err\n";
701 $self->log('info', "query migrate failed: $err");
702 if ($err_count <= 5) {
706 die "too many query migrate failures - aborting\n";
709 if (defined($stat->{status
}) && $stat->{status
} =~ m/^(setup)$/im) {
714 if (defined($stat->{status
}) && $stat->{status
} =~ m/^(active|completed|failed|cancelled)$/im) {
717 if ($stat->{status
} eq 'completed') {
718 my $delay = time() - $start;
720 my $mbps = sprintf "%.2f", $conf->{memory
}/$delay;
721 my $downtime = $stat->{downtime
} || 0;
722 $self->log('info', "migration speed: $mbps MB/s - downtime $downtime ms");
726 if ($stat->{status
} eq 'failed' || $stat->{status
} eq 'cancelled') {
727 $self->log('info', "migration status error: $stat->{status}");
731 if ($stat->{status
} ne 'active') {
732 $self->log('info', "migration status: $stat->{status}");
736 if ($stat->{ram
}->{transferred
} ne $lstat) {
737 my $trans = $stat->{ram
}->{transferred
} || 0;
738 my $rem = $stat->{ram
}->{remaining
} || 0;
739 my $total = $stat->{ram
}->{total
} || 0;
740 my $xbzrlecachesize = $stat->{"xbzrle-cache"}->{"cache-size"} || 0;
741 my $xbzrlebytes = $stat->{"xbzrle-cache"}->{"bytes"} || 0;
742 my $xbzrlepages = $stat->{"xbzrle-cache"}->{"pages"} || 0;
743 my $xbzrlecachemiss = $stat->{"xbzrle-cache"}->{"cache-miss"} || 0;
744 my $xbzrleoverflow = $stat->{"xbzrle-cache"}->{"overflow"} || 0;
745 #reduce sleep if remainig memory if lower than the everage transfert
746 $usleep = 300000 if $avglstat && $rem < $avglstat;
748 $self->log('info', "migration status: $stat->{status} (transferred ${trans}, " .
749 "remaining ${rem}), total ${total})");
751 if (${xbzrlecachesize
}) {
752 $self->log('info', "migration xbzrle cachesize: ${xbzrlecachesize} transferred ${xbzrlebytes} pages ${xbzrlepages} cachemiss ${xbzrlecachemiss} overflow ${xbzrleoverflow}");
755 if (($lastrem && $rem > $lastrem ) || ($rem == 0)) {
760 if ($downtimecounter > 5) {
761 $downtimecounter = 0;
762 $migrate_downtime *= 2;
763 $self->log('info', "migrate_set_downtime: $migrate_downtime");
765 PVE
::QemuServer
::vm_mon_cmd_nocheck
($vmid, "migrate_set_downtime", value
=> int($migrate_downtime*100)/100);
767 $self->log('info', "migrate_set_downtime error: $@") if $@;
773 $lstat = $stat->{ram
}->{transferred
};
777 die "unable to parse migration status '$stat->{status}' - aborting\n";
781 # just to be sure that the tunnel gets closed on successful migration, on error
782 # phase2_cleanup closes it *after* stopping the remote waiting VM
783 if (!$self->{errors
} && $self->{tunnel
}) {
784 eval { finish_tunnel
($self, $self->{tunnel
}); };
786 $self->log('err', $err);
793 my ($self, $vmid, $err) = @_;
795 return if !$self->{errors
};
796 $self->{phase2errors
} = 1;
798 $self->log('info', "aborting phase 2 - cleanup resources");
800 $self->log('info', "migrate_cancel");
802 PVE
::QemuServer
::vm_mon_cmd_nocheck
($vmid, "migrate_cancel");
804 $self->log('info', "migrate_cancel error: $@") if $@;
806 my $conf = $self->{vmconf
};
807 delete $conf->{lock};
808 eval { PVE
::QemuConfig-
>write_config($vmid, $conf) };
810 $self->log('err', $err);
813 # cleanup ressources on target host
814 if ($self->{storage_migration
}) {
816 eval { PVE
::QemuServer
::qemu_blockjobs_cancel
($vmid, $self->{storage_migration_jobs
}) };
818 $self->log('err', $err);
821 eval { PVE
::QemuMigrate
::cleanup_remotedisks
($self) };
823 $self->log('err', $err);
827 my $nodename = PVE
::INotify
::nodename
();
829 my $cmd = [@{$self->{rem_ssh
}}, 'qm', 'stop', $vmid, '--skiplock', '--migratedfrom', $nodename];
830 eval{ PVE
::Tools
::run_command
($cmd, outfunc
=> sub {}, errfunc
=> sub {}) };
832 $self->log('err', $err);
836 if ($self->{tunnel
}) {
837 eval { finish_tunnel
($self, $self->{tunnel
}); };
839 $self->log('err', $err);
846 my ($self, $vmid) = @_;
848 my $volids = $self->{volumes
};
849 return if $self->{phase2errors
};
851 # destroy local copies
852 foreach my $volid (@$volids) {
853 eval { PVE
::Storage
::vdisk_free
($self->{storecfg
}, $volid); };
855 $self->log('err', "removing local copy of '$volid' failed - $err");
857 last if $err =~ /^interrupted by signal$/;
863 my ($self, $vmid, $err) = @_;
865 my $conf = $self->{vmconf
};
866 return if $self->{phase2errors
};
868 if ($self->{storage_migration
}) {
870 eval { PVE
::QemuServer
::qemu_drive_mirror_monitor
($vmid, undef, $self->{storage_migration_jobs
}); };
873 eval { PVE
::QemuServer
::qemu_blockjobs_cancel
($vmid, $self->{storage_migration_jobs
}) };
874 eval { PVE
::QemuMigrate
::cleanup_remotedisks
($self) };
875 die "Failed to completed storage migration\n";
877 foreach my $target_drive (keys %{$self->{target_drive
}}) {
878 my $drive = PVE
::QemuServer
::parse_drive
($target_drive, $self->{target_drive
}->{$target_drive}->{volid
});
879 $conf->{$target_drive} = PVE
::QemuServer
::print_drive
($vmid, $drive);
880 PVE
::QemuConfig-
>write_config($vmid, $conf);
885 # move config to remote node
886 my $conffile = PVE
::QemuConfig-
>config_file($vmid);
887 my $newconffile = PVE
::QemuConfig-
>config_file($vmid, $self->{node
});
889 die "Failed to move config to node '$self->{node}' - rename failed: $!\n"
890 if !rename($conffile, $newconffile);
892 if ($self->{livemigration
}) {
893 if ($self->{storage_migration
}) {
894 # remove drives referencing the nbd server from source
895 # otherwise vm_stop might hang later on
896 foreach my $drive (keys %{$self->{target_drive
}}){
897 PVE
::QemuServer
::vm_mon_cmd_nocheck
($vmid, "device_del", id
=> $drive);
899 # stop nbd server on remote vm - requirement for resume since 2.9
900 my $cmd = [@{$self->{rem_ssh
}}, 'qm', 'nbdstop', $vmid];
902 eval{ PVE
::Tools
::run_command
($cmd, outfunc
=> sub {}, errfunc
=> sub {}) };
904 $self->log('err', $err);
908 # config moved and nbd server stopped - now we can resume vm on target
909 my $cmd = [@{$self->{rem_ssh
}}, 'qm', 'resume', $vmid, '--skiplock', '--nocheck'];
910 eval{ PVE
::Tools
::run_command
($cmd, outfunc
=> sub {},
913 $self->log('err', $line);
917 $self->log('err', $err);
924 if (PVE
::QemuServer
::vga_conf_has_spice
($conf->{vga
}) && $self->{running
}) {
925 $self->log('info', "Waiting for spice server migration");
927 my $res = PVE
::QemuServer
::vm_mon_cmd_nocheck
($vmid, 'query-spice');
928 last if int($res->{'migrated'}) == 1;
936 # always stop local VM
937 eval { PVE
::QemuServer
::vm_stop
($self->{storecfg
}, $vmid, 1, 1); };
939 $self->log('err', "stopping vm failed - $err");
943 # always deactivate volumes - avoid lvm LVs to be active on several nodes
945 my $vollist = PVE
::QemuServer
::get_vm_volumes
($conf);
946 PVE
::Storage
::deactivate_volumes
($self->{storecfg
}, $vollist);
949 $self->log('err', $err);
953 if($self->{storage_migration
}) {
954 # destroy local copies
955 my $volids = $self->{online_local_volumes
};
957 foreach my $volid (@$volids) {
958 eval { PVE
::Storage
::vdisk_free
($self->{storecfg
}, $volid); };
960 $self->log('err', "removing local copy of '$volid' failed - $err");
962 last if $err =~ /^interrupted by signal$/;
969 my $cmd = [ @{$self->{rem_ssh
}}, 'qm', 'unlock', $vmid ];
970 $self->cmd_logerr($cmd, errmsg
=> "failed to clear migrate lock");
974 my ($self, $vmid) = @_;