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Commit | Line | Data |
---|---|---|
3ea94c60 | 1 | package PVE::QemuMigrate; |
1ef75254 | 2 | |
1e3baf05 | 3 | use strict; |
3ea94c60 | 4 | use warnings; |
16e903f2 | 5 | use PVE::AbstractMigrate; |
3ea94c60 | 6 | use IO::File; |
1e3baf05 | 7 | use IPC::Open2; |
61b04c6d | 8 | use POSIX qw( WNOHANG ); |
3ea94c60 | 9 | use PVE::INotify; |
f9a971e0 | 10 | use PVE::Tools; |
3ea94c60 | 11 | use PVE::Cluster; |
1e3baf05 | 12 | use PVE::Storage; |
3ea94c60 | 13 | use PVE::QemuServer; |
e52bd94c | 14 | use Time::HiRes qw( usleep ); |
95a4b4a9 | 15 | use PVE::RPCEnvironment; |
1e3baf05 | 16 | |
16e903f2 | 17 | use base qw(PVE::AbstractMigrate); |
1e3baf05 | 18 | |
1ef75254 | 19 | sub fork_command_pipe { |
46a84fd4 | 20 | my ($self, $cmd) = @_; |
19672434 | 21 | |
1ef75254 DM |
22 | my $reader = IO::File->new(); |
23 | my $writer = IO::File->new(); | |
24 | ||
25 | my $orig_pid = $$; | |
26 | ||
27 | my $cpid; | |
28 | ||
29 | eval { $cpid = open2($reader, $writer, @$cmd); }; | |
30 | ||
31 | my $err = $@; | |
32 | ||
33 | # catch exec errors | |
34 | if ($orig_pid != $$) { | |
46a84fd4 | 35 | $self->log('err', "can't fork command pipe\n"); |
19672434 DM |
36 | POSIX::_exit(1); |
37 | kill('KILL', $$); | |
1ef75254 DM |
38 | } |
39 | ||
40 | die $err if $err; | |
41 | ||
42 | return { writer => $writer, reader => $reader, pid => $cpid }; | |
43 | } | |
44 | ||
19672434 | 45 | sub finish_command_pipe { |
97439670 | 46 | my ($self, $cmdpipe, $timeout) = @_; |
1ef75254 | 47 | |
61b04c6d TL |
48 | my $cpid = $cmdpipe->{pid}; |
49 | return if !defined($cpid); | |
50 | ||
1ef75254 DM |
51 | my $writer = $cmdpipe->{writer}; |
52 | my $reader = $cmdpipe->{reader}; | |
53 | ||
54 | $writer->close(); | |
55 | $reader->close(); | |
56 | ||
61b04c6d TL |
57 | my $collect_child_process = sub { |
58 | my $res = waitpid($cpid, WNOHANG); | |
59 | if (defined($res) && ($res == $cpid)) { | |
60 | delete $cmdpipe->{cpid}; | |
61 | return 1; | |
62 | } else { | |
63 | return 0; | |
64 | } | |
65 | }; | |
1ef75254 | 66 | |
97439670 DM |
67 | if ($timeout) { |
68 | for (my $i = 0; $i < $timeout; $i++) { | |
61b04c6d | 69 | return if &$collect_child_process(); |
97439670 DM |
70 | sleep(1); |
71 | } | |
72 | } | |
73 | ||
74 | $self->log('info', "ssh tunnel still running - terminating now with SIGTERM\n"); | |
75 | kill(15, $cpid); | |
1ef75254 | 76 | |
97439670 DM |
77 | # wait again |
78 | for (my $i = 0; $i < 10; $i++) { | |
61b04c6d | 79 | return if &$collect_child_process(); |
97439670 DM |
80 | sleep(1); |
81 | } | |
82 | ||
83 | $self->log('info', "ssh tunnel still running - terminating now with SIGKILL\n"); | |
84 | kill 9, $cpid; | |
85 | sleep 1; | |
61b04c6d TL |
86 | |
87 | $self->log('err', "ssh tunnel child process (PID $cpid) couldn't be collected\n") | |
88 | if !&$collect_child_process(); | |
1ef75254 DM |
89 | } |
90 | ||
1e3baf05 | 91 | sub fork_tunnel { |
16e903f2 | 92 | my ($self, $nodeip, $lport, $rport) = @_; |
1e3baf05 | 93 | |
033a0b36 | 94 | my @localtunnelinfo = $lport ? ('-L' , "$lport:localhost:$rport" ) : (); |
5bc1e039 | 95 | |
033a0b36 | 96 | my $cmd = [@{$self->{rem_ssh}}, @localtunnelinfo, 'qm', 'mtunnel' ]; |
19672434 | 97 | |
46a84fd4 | 98 | my $tunnel = $self->fork_command_pipe($cmd); |
1e3baf05 DM |
99 | |
100 | my $reader = $tunnel->{reader}; | |
101 | ||
102 | my $helo; | |
19672434 | 103 | eval { |
17eed025 | 104 | PVE::Tools::run_with_timeout(60, sub { $helo = <$reader>; }); |
1e3baf05 | 105 | die "no reply\n" if !$helo; |
1ef75254 | 106 | die "no quorum on target node\n" if $helo =~ m/^no quorum$/; |
19672434 | 107 | die "got strange reply from mtunnel ('$helo')\n" |
1e3baf05 DM |
108 | if $helo !~ m/^tunnel online$/; |
109 | }; | |
110 | my $err = $@; | |
111 | ||
112 | if ($err) { | |
46a84fd4 | 113 | $self->finish_command_pipe($tunnel); |
1e3baf05 DM |
114 | die "can't open migration tunnel - $err"; |
115 | } | |
116 | return $tunnel; | |
117 | } | |
118 | ||
19672434 | 119 | sub finish_tunnel { |
16e903f2 | 120 | my ($self, $tunnel) = @_; |
1e3baf05 DM |
121 | |
122 | my $writer = $tunnel->{writer}; | |
123 | ||
19672434 | 124 | eval { |
17eed025 | 125 | PVE::Tools::run_with_timeout(30, sub { |
1e3baf05 DM |
126 | print $writer "quit\n"; |
127 | $writer->flush(); | |
19672434 | 128 | }); |
1e3baf05 DM |
129 | }; |
130 | my $err = $@; | |
19672434 | 131 | |
97439670 | 132 | $self->finish_command_pipe($tunnel, 30); |
19672434 | 133 | |
1e3baf05 DM |
134 | die $err if $err; |
135 | } | |
136 | ||
16e903f2 DM |
137 | sub lock_vm { |
138 | my ($self, $vmid, $code, @param) = @_; | |
f5eb281a | 139 | |
ffda963f | 140 | return PVE::QemuConfig->lock_config($vmid, $code, @param); |
16e903f2 | 141 | } |
ff1a2432 | 142 | |
16e903f2 DM |
143 | sub prepare { |
144 | my ($self, $vmid) = @_; | |
ff1a2432 | 145 | |
16e903f2 | 146 | my $online = $self->{opts}->{online}; |
3ea94c60 | 147 | |
16e903f2 | 148 | $self->{storecfg} = PVE::Storage::config(); |
3ea94c60 | 149 | |
e1fc368d | 150 | # test if VM exists |
ffda963f | 151 | my $conf = $self->{vmconf} = PVE::QemuConfig->load_config($vmid); |
3ea94c60 | 152 | |
ffda963f | 153 | PVE::QemuConfig->check_lock($conf); |
3ea94c60 | 154 | |
16e903f2 DM |
155 | my $running = 0; |
156 | if (my $pid = PVE::QemuServer::check_running($vmid)) { | |
157 | die "cant migrate running VM without --online\n" if !$online; | |
158 | $running = $pid; | |
42dbd2ee AD |
159 | |
160 | $self->{forcemachine} = PVE::QemuServer::qemu_machine_pxe($vmid, $conf); | |
7bac824e | 161 | |
3ea94c60 DM |
162 | } |
163 | ||
16e903f2 DM |
164 | if (my $loc_res = PVE::QemuServer::check_local_resources($conf, 1)) { |
165 | if ($self->{running} || !$self->{opts}->{force}) { | |
166 | die "can't migrate VM which uses local devices\n"; | |
167 | } else { | |
168 | $self->log('info', "migrating VM which uses local devices"); | |
169 | } | |
3ea94c60 DM |
170 | } |
171 | ||
ff1a2432 | 172 | my $vollist = PVE::QemuServer::get_vm_volumes($conf); |
16e903f2 | 173 | |
73f5ee92 | 174 | my $need_activate = []; |
29701766 FG |
175 | foreach my $volid (@$vollist) { |
176 | my ($sid, $volname) = PVE::Storage::parse_volume_id($volid, 1); | |
177 | ||
178 | # check if storage is available on both nodes | |
179 | my $scfg = PVE::Storage::storage_check_node($self->{storecfg}, $sid); | |
180 | PVE::Storage::storage_check_node($self->{storecfg}, $sid, $self->{node}); | |
73f5ee92 FG |
181 | |
182 | if ($scfg->{shared}) { | |
183 | # PVE::Storage::activate_storage checks this for non-shared storages | |
184 | my $plugin = PVE::Storage::Plugin->lookup($scfg->{type}); | |
185 | warn "Used shared storage '$sid' is not online on source node!\n" | |
186 | if !$plugin->check_connection($sid, $scfg); | |
187 | } else { | |
188 | # only activate if not shared | |
189 | push @$need_activate, $volid; | |
190 | } | |
29701766 | 191 | } |
3ea94c60 | 192 | |
73f5ee92 FG |
193 | # activate volumes |
194 | PVE::Storage::activate_volumes($self->{storecfg}, $need_activate); | |
195 | ||
3ea94c60 | 196 | # test ssh connection |
16e903f2 DM |
197 | my $cmd = [ @{$self->{rem_ssh}}, '/bin/true' ]; |
198 | eval { $self->cmd_quiet($cmd); }; | |
3ea94c60 | 199 | die "Can't connect to destination address using public key\n" if $@; |
ff1a2432 | 200 | |
16e903f2 | 201 | return $running; |
3ea94c60 DM |
202 | } |
203 | ||
204 | sub sync_disks { | |
16e903f2 DM |
205 | my ($self, $vmid) = @_; |
206 | ||
207 | $self->log('info', "copying disk images"); | |
3ea94c60 | 208 | |
16e903f2 DM |
209 | my $conf = $self->{vmconf}; |
210 | ||
211 | $self->{volumes} = []; | |
3ea94c60 DM |
212 | |
213 | my $res = []; | |
214 | ||
215 | eval { | |
216 | ||
217 | my $volhash = {}; | |
218 | my $cdromhash = {}; | |
219 | ||
a06c7f7e DM |
220 | my $sharedvm = 1; |
221 | ||
522c8f97 DM |
222 | my @sids = PVE::Storage::storage_ids($self->{storecfg}); |
223 | foreach my $storeid (@sids) { | |
224 | my $scfg = PVE::Storage::storage_config($self->{storecfg}, $storeid); | |
225 | next if $scfg->{shared}; | |
373ea579 DM |
226 | next if !PVE::Storage::storage_check_enabled($self->{storecfg}, $storeid, undef, 1); |
227 | ||
80b2cbd1 AD |
228 | # get list from PVE::Storage (for unused volumes) |
229 | my $dl = PVE::Storage::vdisk_list($self->{storecfg}, $storeid, $vmid); | |
230 | PVE::Storage::foreach_volid($dl, sub { | |
231 | my ($volid, $sid, $volname) = @_; | |
232 | ||
373ea579 | 233 | # check if storage is available on target node |
80b2cbd1 AD |
234 | PVE::Storage::storage_check_node($self->{storecfg}, $sid, $self->{node}); |
235 | ||
236 | $volhash->{$volid} = 1; | |
a06c7f7e | 237 | $sharedvm = 0; # there is a non-shared disk |
80b2cbd1 AD |
238 | }); |
239 | } | |
3ea94c60 | 240 | |
d5769dc2 | 241 | # and add used, owned/non-shared disks (just to be sure we have all) |
3ea94c60 | 242 | |
d5769dc2 DM |
243 | PVE::QemuServer::foreach_volid($conf, sub { |
244 | my ($volid, $is_cdrom) = @_; | |
3ea94c60 | 245 | |
3ea94c60 DM |
246 | return if !$volid; |
247 | ||
674051dc | 248 | die "can't migrate local file/device '$volid'\n" if $volid =~ m|^/|; |
3ea94c60 | 249 | |
d5769dc2 | 250 | if ($is_cdrom) { |
3ea94c60 DM |
251 | die "cant migrate local cdrom drive\n" if $volid eq 'cdrom'; |
252 | return if $volid eq 'none'; | |
253 | $cdromhash->{$volid} = 1; | |
254 | } | |
255 | ||
256 | my ($sid, $volname) = PVE::Storage::parse_volume_id($volid); | |
257 | ||
16e903f2 DM |
258 | # check if storage is available on both nodes |
259 | my $scfg = PVE::Storage::storage_check_node($self->{storecfg}, $sid); | |
260 | PVE::Storage::storage_check_node($self->{storecfg}, $sid, $self->{node}); | |
3ea94c60 DM |
261 | |
262 | return if $scfg->{shared}; | |
263 | ||
264 | die "can't migrate local cdrom '$volid'\n" if $cdromhash->{$volid}; | |
265 | ||
266 | $sharedvm = 0; | |
267 | ||
16e903f2 | 268 | my ($path, $owner) = PVE::Storage::path($self->{storecfg}, $volid); |
3ea94c60 DM |
269 | |
270 | die "can't migrate volume '$volid' - owned by other VM (owner = VM $owner)\n" | |
16e903f2 | 271 | if !$owner || ($owner != $self->{vmid}); |
3ea94c60 DM |
272 | |
273 | $volhash->{$volid} = 1; | |
274 | }); | |
275 | ||
16e903f2 | 276 | if ($self->{running} && !$sharedvm) { |
3ea94c60 DM |
277 | die "can't do online migration - VM uses local disks\n"; |
278 | } | |
279 | ||
280 | # do some checks first | |
281 | foreach my $volid (keys %$volhash) { | |
282 | my ($sid, $volname) = PVE::Storage::parse_volume_id($volid); | |
16e903f2 | 283 | my $scfg = PVE::Storage::storage_config($self->{storecfg}, $sid); |
3ea94c60 | 284 | |
37a6dc78 | 285 | die "can't migrate '$volid' - storage type '$scfg->{type}' not supported\n" |
adf8ac08 | 286 | if (!($scfg->{type} eq 'dir' || $scfg->{type} eq 'zfspool') && (!$sharedvm)); |
d5604092 | 287 | |
b7b1ac9d | 288 | # if file, check if a backing file exist |
adf8ac08 | 289 | if (!($scfg->{type} eq 'dir' || $scfg->{type} eq 'zfspool') && (!$sharedvm)) { |
d5604092 | 290 | my (undef, undef, undef, $parent) = PVE::Storage::volume_size_info($self->{storecfg}, $volid, 1); |
b7b1ac9d | 291 | die "can't migrate '$volid' as it's a clone of '$parent'" if $parent; |
d5604092 | 292 | } |
3ea94c60 DM |
293 | } |
294 | ||
295 | foreach my $volid (keys %$volhash) { | |
296 | my ($sid, $volname) = PVE::Storage::parse_volume_id($volid); | |
16e903f2 DM |
297 | push @{$self->{volumes}}, $volid; |
298 | PVE::Storage::storage_migrate($self->{storecfg}, $volid, $self->{nodeip}, $sid); | |
3ea94c60 DM |
299 | } |
300 | }; | |
301 | die "Failed to sync data - $@" if $@; | |
302 | } | |
303 | ||
1e3baf05 | 304 | sub phase1 { |
16e903f2 | 305 | my ($self, $vmid) = @_; |
1e3baf05 | 306 | |
16e903f2 | 307 | $self->log('info', "starting migration of VM $vmid to node '$self->{node}' ($self->{nodeip})"); |
1e3baf05 | 308 | |
16e903f2 | 309 | my $conf = $self->{vmconf}; |
1e3baf05 DM |
310 | |
311 | # set migrate lock in config file | |
1858638f | 312 | $conf->{lock} = 'migrate'; |
ffda963f | 313 | PVE::QemuConfig->write_config($vmid, $conf); |
1e3baf05 | 314 | |
16e903f2 | 315 | sync_disks($self, $vmid); |
1ef75254 | 316 | |
1e3baf05 DM |
317 | }; |
318 | ||
16e903f2 DM |
319 | sub phase1_cleanup { |
320 | my ($self, $vmid, $err) = @_; | |
321 | ||
322 | $self->log('info', "aborting phase 1 - cleanup resources"); | |
323 | ||
1858638f DM |
324 | my $conf = $self->{vmconf}; |
325 | delete $conf->{lock}; | |
ffda963f | 326 | eval { PVE::QemuConfig->write_config($vmid, $conf) }; |
16e903f2 DM |
327 | if (my $err = $@) { |
328 | $self->log('err', $err); | |
329 | } | |
f5eb281a | 330 | |
16e903f2 DM |
331 | if ($self->{volumes}) { |
332 | foreach my $volid (@{$self->{volumes}}) { | |
333 | $self->log('err', "found stale volume copy '$volid' on node '$self->{node}'"); | |
334 | # fixme: try to remove ? | |
335 | } | |
336 | } | |
337 | } | |
338 | ||
1e3baf05 | 339 | sub phase2 { |
16e903f2 | 340 | my ($self, $vmid) = @_; |
1e3baf05 | 341 | |
16e903f2 DM |
342 | my $conf = $self->{vmconf}; |
343 | ||
46a84fd4 | 344 | $self->log('info', "starting VM $vmid on remote node '$self->{node}'"); |
1e3baf05 | 345 | |
5bc1e039 | 346 | my $raddr; |
1e3baf05 | 347 | my $rport; |
7e8dcf2c AD |
348 | my $nodename = PVE::INotify::nodename(); |
349 | ||
19672434 | 350 | ## start on remote node |
95a4b4a9 AD |
351 | my $cmd = [@{$self->{rem_ssh}}]; |
352 | ||
7c14dcae | 353 | my $spice_ticket; |
86b8228b | 354 | if (PVE::QemuServer::vga_conf_has_spice($conf->{vga})) { |
95a4b4a9 | 355 | my $res = PVE::QemuServer::vm_mon_cmd($vmid, 'query-spice'); |
7c14dcae | 356 | $spice_ticket = $res->{ticket}; |
95a4b4a9 AD |
357 | } |
358 | ||
359 | push @$cmd , 'qm', 'start', $vmid, '--stateuri', 'tcp', '--skiplock', '--migratedfrom', $nodename; | |
360 | ||
42668529 DM |
361 | if ($self->{forcemachine}) { |
362 | push @$cmd, '--machine', $self->{forcemachine}; | |
363 | } | |
364 | ||
86b8228b DM |
365 | my $spice_port; |
366 | ||
7c14dcae DM |
367 | # Note: We try to keep $spice_ticket secret (do not pass via command line parameter) |
368 | # instead we pipe it through STDIN | |
369 | PVE::Tools::run_command($cmd, input => $spice_ticket, outfunc => sub { | |
1e3baf05 DM |
370 | my $line = shift; |
371 | ||
407e0b8b | 372 | if ($line =~ m/^migration listens on tcp:(localhost|[\d\.]+|\[[\d\.:a-fA-F]+\]):(\d+)$/) { |
5bc1e039 SP |
373 | $raddr = $1; |
374 | $rport = int($2); | |
375 | } | |
376 | elsif ($line =~ m/^migration listens on port (\d+)$/) { | |
377 | $raddr = "localhost"; | |
86b8228b | 378 | $rport = int($1); |
5bc1e039 SP |
379 | } |
380 | elsif ($line =~ m/^spice listens on port (\d+)$/) { | |
86b8228b | 381 | $spice_port = int($1); |
1e3baf05 | 382 | } |
ab399b7c AD |
383 | }, errfunc => sub { |
384 | my $line = shift; | |
385 | $self->log('info', $line); | |
386 | }); | |
1e3baf05 | 387 | |
5bc1e039 | 388 | die "unable to detect remote migration address\n" if !$raddr; |
1ef75254 | 389 | |
1e3baf05 | 390 | ## create tunnel to remote port |
5bc1e039 | 391 | $self->log('info', "starting ssh migration tunnel"); |
af0eba7e WB |
392 | my $pfamily = PVE::Tools::get_host_address_family($nodename); |
393 | my $lport = ($raddr eq "localhost") ? PVE::Tools::next_migrate_port($pfamily) : undef; | |
16e903f2 | 394 | $self->{tunnel} = $self->fork_tunnel($self->{nodeip}, $lport, $rport); |
1e3baf05 | 395 | |
1e3baf05 | 396 | my $start = time(); |
5bc1e039 SP |
397 | $self->log('info', "starting online/live migration on $raddr:$rport"); |
398 | $self->{livemigration} = 1; | |
e18b0b99 | 399 | |
3beb415b AD |
400 | # load_defaults |
401 | my $defaults = PVE::QemuServer::load_defaults(); | |
402 | ||
403 | # always set migrate speed (overwrite kvm default of 32m) | |
404 | # we set a very hight default of 8192m which is basically unlimited | |
405 | my $migrate_speed = $defaults->{migrate_speed} || 8192; | |
406 | $migrate_speed = $conf->{migrate_speed} || $migrate_speed; | |
407 | $migrate_speed = $migrate_speed * 1048576; | |
408 | $self->log('info', "migrate_set_speed: $migrate_speed"); | |
409 | eval { | |
410 | PVE::QemuServer::vm_mon_cmd_nocheck($vmid, "migrate_set_speed", value => int($migrate_speed)); | |
411 | }; | |
412 | $self->log('info', "migrate_set_speed error: $@") if $@; | |
413 | ||
414 | my $migrate_downtime = $defaults->{migrate_downtime}; | |
415 | $migrate_downtime = $conf->{migrate_downtime} if defined($conf->{migrate_downtime}); | |
416 | if (defined($migrate_downtime)) { | |
417 | $self->log('info', "migrate_set_downtime: $migrate_downtime"); | |
418 | eval { | |
865ef132 | 419 | PVE::QemuServer::vm_mon_cmd_nocheck($vmid, "migrate_set_downtime", value => int($migrate_downtime*100)/100); |
3beb415b AD |
420 | }; |
421 | $self->log('info', "migrate_set_downtime error: $@") if $@; | |
422 | } | |
423 | ||
e18b0b99 | 424 | eval { |
a89fded1 | 425 | PVE::QemuServer::set_migration_caps($vmid); |
e18b0b99 | 426 | }; |
a89fded1 | 427 | warn $@ if $@; |
e18b0b99 AD |
428 | |
429 | #set cachesize 10% of the total memory | |
430 | my $cachesize = int($conf->{memory}*1048576/10); | |
431 | eval { | |
432 | PVE::QemuServer::vm_mon_cmd_nocheck($vmid, "migrate-set-cache-size", value => $cachesize); | |
433 | }; | |
86b8228b DM |
434 | |
435 | if (PVE::QemuServer::vga_conf_has_spice($conf->{vga})) { | |
95a4b4a9 AD |
436 | my $rpcenv = PVE::RPCEnvironment::get(); |
437 | my $authuser = $rpcenv->get_user(); | |
438 | ||
86b8228b | 439 | my (undef, $proxyticket) = PVE::AccessControl::assemble_spice_ticket($authuser, $vmid, $self->{node}); |
95a4b4a9 | 440 | |
86b8228b | 441 | my $filename = "/etc/pve/nodes/$self->{node}/pve-ssl.pem"; |
dd25eecf | 442 | my $subject = PVE::AccessControl::read_x509_subject_spice($filename); |
95a4b4a9 AD |
443 | |
444 | $self->log('info', "spice client_migrate_info"); | |
445 | ||
446 | eval { | |
86b8228b DM |
447 | PVE::QemuServer::vm_mon_cmd_nocheck($vmid, "client_migrate_info", protocol => 'spice', |
448 | hostname => $proxyticket, 'tls-port' => $spice_port, | |
449 | 'cert-subject' => $subject); | |
95a4b4a9 AD |
450 | }; |
451 | $self->log('info', "client_migrate_info error: $@") if $@; | |
452 | ||
453 | } | |
454 | ||
5a7835f5 | 455 | eval { |
407e0b8b | 456 | PVE::QemuServer::vm_mon_cmd_nocheck($vmid, "migrate", uri => "tcp:$raddr:$rport"); |
5a7835f5 AD |
457 | }; |
458 | my $merr = $@; | |
407e0b8b | 459 | $self->log('info', "migrate uri => tcp:$raddr:$rport failed: $merr") if $merr; |
1e3baf05 | 460 | |
a05b47a8 | 461 | my $lstat = 0; |
e52bd94c AD |
462 | my $usleep = 2000000; |
463 | my $i = 0; | |
b0b756c1 | 464 | my $err_count = 0; |
865ef132 SP |
465 | my $lastrem = undef; |
466 | my $downtimecounter = 0; | |
1e3baf05 | 467 | while (1) { |
e52bd94c AD |
468 | $i++; |
469 | my $avglstat = $lstat/$i if $lstat; | |
470 | ||
b0b756c1 DM |
471 | usleep($usleep); |
472 | my $stat; | |
473 | eval { | |
474 | $stat = PVE::QemuServer::vm_mon_cmd_nocheck($vmid, "query-migrate"); | |
475 | }; | |
476 | if (my $err = $@) { | |
477 | $err_count++; | |
478 | warn "query migrate failed: $err\n"; | |
479 | if ($err_count <= 5) { | |
480 | usleep(1000000); | |
481 | next; | |
482 | } | |
483 | die "too many query migrate failures - aborting\n"; | |
484 | } | |
985a5f48 AD |
485 | |
486 | if ($stat->{status} =~ m/^(setup)$/im) { | |
487 | sleep(1); | |
488 | next; | |
489 | } | |
490 | ||
5a7835f5 | 491 | if ($stat->{status} =~ m/^(active|completed|failed|cancelled)$/im) { |
d68afb26 | 492 | $merr = undef; |
b0b756c1 | 493 | $err_count = 0; |
5a7835f5 | 494 | if ($stat->{status} eq 'completed') { |
1e3baf05 DM |
495 | my $delay = time() - $start; |
496 | if ($delay > 0) { | |
497 | my $mbps = sprintf "%.2f", $conf->{memory}/$delay; | |
135007c0 AD |
498 | my $downtime = $stat->{downtime} || 0; |
499 | $self->log('info', "migration speed: $mbps MB/s - downtime $downtime ms"); | |
1e3baf05 DM |
500 | } |
501 | } | |
f5eb281a | 502 | |
5a7835f5 | 503 | if ($stat->{status} eq 'failed' || $stat->{status} eq 'cancelled') { |
1e3baf05 DM |
504 | die "aborting\n" |
505 | } | |
506 | ||
a05b47a8 DM |
507 | if ($stat->{status} ne 'active') { |
508 | $self->log('info', "migration status: $stat->{status}"); | |
509 | last; | |
510 | } | |
511 | ||
512 | if ($stat->{ram}->{transferred} ne $lstat) { | |
513 | my $trans = $stat->{ram}->{transferred} || 0; | |
514 | my $rem = $stat->{ram}->{remaining} || 0; | |
515 | my $total = $stat->{ram}->{total} || 0; | |
e18b0b99 AD |
516 | my $xbzrlecachesize = $stat->{"xbzrle-cache"}->{"cache-size"} || 0; |
517 | my $xbzrlebytes = $stat->{"xbzrle-cache"}->{"bytes"} || 0; | |
518 | my $xbzrlepages = $stat->{"xbzrle-cache"}->{"pages"} || 0; | |
519 | my $xbzrlecachemiss = $stat->{"xbzrle-cache"}->{"cache-miss"} || 0; | |
520 | my $xbzrleoverflow = $stat->{"xbzrle-cache"}->{"overflow"} || 0; | |
e52bd94c | 521 | #reduce sleep if remainig memory if lower than the everage transfert |
94235c59 | 522 | $usleep = 300000 if $avglstat && $rem < $avglstat; |
a05b47a8 DM |
523 | |
524 | $self->log('info', "migration status: $stat->{status} (transferred ${trans}, " . | |
0302101c | 525 | "remaining ${rem}), total ${total})"); |
e18b0b99 | 526 | |
2e787b18 SP |
527 | if (${xbzrlecachesize}) { |
528 | $self->log('info', "migration xbzrle cachesize: ${xbzrlecachesize} transferred ${xbzrlebytes} pages ${xbzrlepages} cachemiss ${xbzrlecachemiss} overflow ${xbzrleoverflow}"); | |
529 | } | |
530 | ||
865ef132 SP |
531 | if (($lastrem && $rem > $lastrem ) || ($rem == 0)) { |
532 | $downtimecounter++; | |
533 | } | |
534 | $lastrem = $rem; | |
535 | ||
536 | if ($downtimecounter > 5) { | |
537 | $downtimecounter = 0; | |
538 | $migrate_downtime *= 2; | |
539 | $self->log('info', "migrate_set_downtime: $migrate_downtime"); | |
540 | eval { | |
541 | PVE::QemuServer::vm_mon_cmd_nocheck($vmid, "migrate_set_downtime", value => int($migrate_downtime*100)/100); | |
542 | }; | |
543 | $self->log('info', "migrate_set_downtime error: $@") if $@; | |
544 | } | |
545 | ||
a05b47a8 DM |
546 | } |
547 | ||
865ef132 | 548 | |
a05b47a8 | 549 | $lstat = $stat->{ram}->{transferred}; |
e52bd94c | 550 | |
1e3baf05 | 551 | } else { |
d68afb26 | 552 | die $merr if $merr; |
5a7835f5 | 553 | die "unable to parse migration status '$stat->{status}' - aborting\n"; |
1e3baf05 | 554 | } |
a05b47a8 | 555 | } |
386c6ba7 WL |
556 | #to be sure tat the tunnel is closed |
557 | if ($self->{tunnel}) { | |
558 | eval { finish_tunnel($self, $self->{tunnel}); }; | |
559 | if (my $err = $@) { | |
560 | $self->log('err', $err); | |
561 | $self->{errors} = 1; | |
562 | } | |
563 | } | |
1e3baf05 | 564 | } |
16e903f2 | 565 | |
c04b5b04 AD |
566 | sub phase2_cleanup { |
567 | my ($self, $vmid, $err) = @_; | |
568 | ||
af30308f DM |
569 | return if !$self->{errors}; |
570 | $self->{phase2errors} = 1; | |
571 | ||
c04b5b04 AD |
572 | $self->log('info', "aborting phase 2 - cleanup resources"); |
573 | ||
19168b91 SP |
574 | $self->log('info', "migrate_cancel"); |
575 | eval { | |
576 | PVE::QemuServer::vm_mon_cmd_nocheck($vmid, "migrate_cancel"); | |
577 | }; | |
578 | $self->log('info', "migrate_cancel error: $@") if $@; | |
579 | ||
c04b5b04 AD |
580 | my $conf = $self->{vmconf}; |
581 | delete $conf->{lock}; | |
ffda963f | 582 | eval { PVE::QemuConfig->write_config($vmid, $conf) }; |
c04b5b04 AD |
583 | if (my $err = $@) { |
584 | $self->log('err', $err); | |
585 | } | |
586 | ||
af30308f DM |
587 | # cleanup ressources on target host |
588 | my $nodename = PVE::INotify::nodename(); | |
589 | ||
590 | my $cmd = [@{$self->{rem_ssh}}, 'qm', 'stop', $vmid, '--skiplock', '--migratedfrom', $nodename]; | |
591 | eval{ PVE::Tools::run_command($cmd, outfunc => sub {}, errfunc => sub {}) }; | |
592 | if (my $err = $@) { | |
593 | $self->log('err', $err); | |
594 | $self->{errors} = 1; | |
595 | } | |
386c6ba7 WL |
596 | |
597 | if ($self->{tunnel}) { | |
598 | eval { finish_tunnel($self, $self->{tunnel}); }; | |
599 | if (my $err = $@) { | |
600 | $self->log('err', $err); | |
601 | $self->{errors} = 1; | |
602 | } | |
603 | } | |
c04b5b04 AD |
604 | } |
605 | ||
16e903f2 DM |
606 | sub phase3 { |
607 | my ($self, $vmid) = @_; | |
f5eb281a | 608 | |
16e903f2 | 609 | my $volids = $self->{volumes}; |
af30308f | 610 | return if $self->{phase2errors}; |
16e903f2 DM |
611 | |
612 | # destroy local copies | |
613 | foreach my $volid (@$volids) { | |
614 | eval { PVE::Storage::vdisk_free($self->{storecfg}, $volid); }; | |
615 | if (my $err = $@) { | |
616 | $self->log('err', "removing local copy of '$volid' failed - $err"); | |
617 | $self->{errors} = 1; | |
618 | last if $err =~ /^interrupted by signal$/; | |
619 | } | |
620 | } | |
16e903f2 DM |
621 | } |
622 | ||
623 | sub phase3_cleanup { | |
624 | my ($self, $vmid, $err) = @_; | |
625 | ||
626 | my $conf = $self->{vmconf}; | |
af30308f | 627 | return if $self->{phase2errors}; |
16e903f2 | 628 | |
b8d20802 | 629 | # move config to remote node |
ffda963f FG |
630 | my $conffile = PVE::QemuConfig->config_file($vmid); |
631 | my $newconffile = PVE::QemuConfig->config_file($vmid, $self->{node}); | |
b8d20802 AD |
632 | |
633 | die "Failed to move config to node '$self->{node}' - rename failed: $!\n" | |
634 | if !rename($conffile, $newconffile); | |
635 | ||
5bc1e039 SP |
636 | if ($self->{livemigration}) { |
637 | # now that config file is move, we can resume vm on target if livemigrate | |
289e0b85 | 638 | my $cmd = [@{$self->{rem_ssh}}, 'qm', 'resume', $vmid, '--skiplock', '--nocheck']; |
d5f315fd AD |
639 | eval{ PVE::Tools::run_command($cmd, outfunc => sub {}, |
640 | errfunc => sub { | |
641 | my $line = shift; | |
642 | $self->log('err', $line); | |
643 | }); | |
644 | }; | |
f5eb281a | 645 | if (my $err = $@) { |
b67900f1 AD |
646 | $self->log('err', $err); |
647 | $self->{errors} = 1; | |
648 | } | |
649 | } | |
650 | ||
fd8469f7 AD |
651 | eval { |
652 | ||
653 | my $timer = 0; | |
654 | if (PVE::QemuServer::vga_conf_has_spice($conf->{vga}) && $self->{running}) { | |
655 | $self->log('info', "Waiting for spice server migration"); | |
656 | while (1) { | |
657 | my $res = PVE::QemuServer::vm_mon_cmd_nocheck($vmid, 'query-spice'); | |
658 | last if int($res->{'migrated'}) == 1; | |
659 | last if $timer > 50; | |
660 | $timer ++; | |
661 | usleep(200000); | |
662 | } | |
663 | } | |
664 | }; | |
95a4b4a9 | 665 | |
16e903f2 DM |
666 | # always stop local VM |
667 | eval { PVE::QemuServer::vm_stop($self->{storecfg}, $vmid, 1, 1); }; | |
668 | if (my $err = $@) { | |
669 | $self->log('err', "stopping vm failed - $err"); | |
670 | $self->{errors} = 1; | |
671 | } | |
672 | ||
673 | # always deactivate volumes - avoid lvm LVs to be active on several nodes | |
674 | eval { | |
675 | my $vollist = PVE::QemuServer::get_vm_volumes($conf); | |
676 | PVE::Storage::deactivate_volumes($self->{storecfg}, $vollist); | |
677 | }; | |
678 | if (my $err = $@) { | |
679 | $self->log('err', $err); | |
680 | $self->{errors} = 1; | |
681 | } | |
682 | ||
683 | # clear migrate lock | |
684 | my $cmd = [ @{$self->{rem_ssh}}, 'qm', 'unlock', $vmid ]; | |
685 | $self->cmd_logerr($cmd, errmsg => "failed to clear migrate lock"); | |
686 | } | |
687 | ||
688 | sub final_cleanup { | |
689 | my ($self, $vmid) = @_; | |
690 | ||
691 | # nothing to do | |
692 | } | |
693 | ||
694 | 1; |