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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 { |
1c9d54bf | 92 | my ($self, $tunnel_addr) = @_; |
1e3baf05 | 93 | |
1c9d54bf | 94 | my @localtunnelinfo = ('-L' , $tunnel_addr ); |
5bc1e039 | 95 | |
1c9d54bf | 96 | my $cmd = [@{$self->{rem_ssh}}, '-o ExitOnForwardFailure=yes', @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 | |
1c9d54bf TL |
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); | |
138 | ||
139 | # .. and just to be sure check on remote side | |
140 | unshift @{$cmd}, @{$self->{rem_ssh}}; | |
141 | PVE::Tools::run_command($cmd); | |
142 | } | |
143 | ||
1e3baf05 DM |
144 | die $err if $err; |
145 | } | |
146 | ||
16e903f2 DM |
147 | sub lock_vm { |
148 | my ($self, $vmid, $code, @param) = @_; | |
f5eb281a | 149 | |
ffda963f | 150 | return PVE::QemuConfig->lock_config($vmid, $code, @param); |
16e903f2 | 151 | } |
ff1a2432 | 152 | |
16e903f2 DM |
153 | sub prepare { |
154 | my ($self, $vmid) = @_; | |
ff1a2432 | 155 | |
16e903f2 | 156 | my $online = $self->{opts}->{online}; |
3ea94c60 | 157 | |
16e903f2 | 158 | $self->{storecfg} = PVE::Storage::config(); |
3ea94c60 | 159 | |
e1fc368d | 160 | # test if VM exists |
ffda963f | 161 | my $conf = $self->{vmconf} = PVE::QemuConfig->load_config($vmid); |
3ea94c60 | 162 | |
ffda963f | 163 | PVE::QemuConfig->check_lock($conf); |
3ea94c60 | 164 | |
16e903f2 DM |
165 | my $running = 0; |
166 | if (my $pid = PVE::QemuServer::check_running($vmid)) { | |
167 | die "cant migrate running VM without --online\n" if !$online; | |
168 | $running = $pid; | |
42dbd2ee AD |
169 | |
170 | $self->{forcemachine} = PVE::QemuServer::qemu_machine_pxe($vmid, $conf); | |
7bac824e | 171 | |
3ea94c60 DM |
172 | } |
173 | ||
16e903f2 DM |
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"; | |
177 | } else { | |
178 | $self->log('info', "migrating VM which uses local devices"); | |
179 | } | |
3ea94c60 DM |
180 | } |
181 | ||
ff1a2432 | 182 | my $vollist = PVE::QemuServer::get_vm_volumes($conf); |
16e903f2 | 183 | |
73f5ee92 | 184 | my $need_activate = []; |
29701766 FG |
185 | foreach my $volid (@$vollist) { |
186 | my ($sid, $volname) = PVE::Storage::parse_volume_id($volid, 1); | |
187 | ||
188 | # check if storage is available on both nodes | |
189 | my $scfg = PVE::Storage::storage_check_node($self->{storecfg}, $sid); | |
190 | PVE::Storage::storage_check_node($self->{storecfg}, $sid, $self->{node}); | |
73f5ee92 FG |
191 | |
192 | if ($scfg->{shared}) { | |
193 | # PVE::Storage::activate_storage checks this for non-shared storages | |
194 | my $plugin = PVE::Storage::Plugin->lookup($scfg->{type}); | |
195 | warn "Used shared storage '$sid' is not online on source node!\n" | |
196 | if !$plugin->check_connection($sid, $scfg); | |
197 | } else { | |
198 | # only activate if not shared | |
199 | push @$need_activate, $volid; | |
200 | } | |
29701766 | 201 | } |
3ea94c60 | 202 | |
73f5ee92 FG |
203 | # activate volumes |
204 | PVE::Storage::activate_volumes($self->{storecfg}, $need_activate); | |
205 | ||
3ea94c60 | 206 | # test ssh connection |
16e903f2 DM |
207 | my $cmd = [ @{$self->{rem_ssh}}, '/bin/true' ]; |
208 | eval { $self->cmd_quiet($cmd); }; | |
3ea94c60 | 209 | die "Can't connect to destination address using public key\n" if $@; |
ff1a2432 | 210 | |
16e903f2 | 211 | return $running; |
3ea94c60 DM |
212 | } |
213 | ||
214 | sub sync_disks { | |
16e903f2 DM |
215 | my ($self, $vmid) = @_; |
216 | ||
217 | $self->log('info', "copying disk images"); | |
3ea94c60 | 218 | |
16e903f2 DM |
219 | my $conf = $self->{vmconf}; |
220 | ||
221 | $self->{volumes} = []; | |
3ea94c60 DM |
222 | |
223 | my $res = []; | |
224 | ||
225 | eval { | |
226 | ||
227 | my $volhash = {}; | |
228 | my $cdromhash = {}; | |
229 | ||
a06c7f7e DM |
230 | my $sharedvm = 1; |
231 | ||
522c8f97 DM |
232 | my @sids = PVE::Storage::storage_ids($self->{storecfg}); |
233 | foreach my $storeid (@sids) { | |
234 | my $scfg = PVE::Storage::storage_config($self->{storecfg}, $storeid); | |
235 | next if $scfg->{shared}; | |
373ea579 DM |
236 | next if !PVE::Storage::storage_check_enabled($self->{storecfg}, $storeid, undef, 1); |
237 | ||
80b2cbd1 AD |
238 | # get list from PVE::Storage (for unused volumes) |
239 | my $dl = PVE::Storage::vdisk_list($self->{storecfg}, $storeid, $vmid); | |
240 | PVE::Storage::foreach_volid($dl, sub { | |
241 | my ($volid, $sid, $volname) = @_; | |
242 | ||
373ea579 | 243 | # check if storage is available on target node |
80b2cbd1 AD |
244 | PVE::Storage::storage_check_node($self->{storecfg}, $sid, $self->{node}); |
245 | ||
246 | $volhash->{$volid} = 1; | |
a06c7f7e | 247 | $sharedvm = 0; # there is a non-shared disk |
80b2cbd1 AD |
248 | }); |
249 | } | |
3ea94c60 | 250 | |
d5769dc2 | 251 | # and add used, owned/non-shared disks (just to be sure we have all) |
3ea94c60 | 252 | |
d5769dc2 DM |
253 | PVE::QemuServer::foreach_volid($conf, sub { |
254 | my ($volid, $is_cdrom) = @_; | |
3ea94c60 | 255 | |
3ea94c60 DM |
256 | return if !$volid; |
257 | ||
674051dc | 258 | die "can't migrate local file/device '$volid'\n" if $volid =~ m|^/|; |
3ea94c60 | 259 | |
d5769dc2 | 260 | if ($is_cdrom) { |
3ea94c60 DM |
261 | die "cant migrate local cdrom drive\n" if $volid eq 'cdrom'; |
262 | return if $volid eq 'none'; | |
263 | $cdromhash->{$volid} = 1; | |
264 | } | |
265 | ||
266 | my ($sid, $volname) = PVE::Storage::parse_volume_id($volid); | |
267 | ||
16e903f2 DM |
268 | # check if storage is available on both nodes |
269 | my $scfg = PVE::Storage::storage_check_node($self->{storecfg}, $sid); | |
270 | PVE::Storage::storage_check_node($self->{storecfg}, $sid, $self->{node}); | |
3ea94c60 DM |
271 | |
272 | return if $scfg->{shared}; | |
273 | ||
274 | die "can't migrate local cdrom '$volid'\n" if $cdromhash->{$volid}; | |
275 | ||
276 | $sharedvm = 0; | |
277 | ||
16e903f2 | 278 | my ($path, $owner) = PVE::Storage::path($self->{storecfg}, $volid); |
3ea94c60 DM |
279 | |
280 | die "can't migrate volume '$volid' - owned by other VM (owner = VM $owner)\n" | |
16e903f2 | 281 | if !$owner || ($owner != $self->{vmid}); |
3ea94c60 DM |
282 | |
283 | $volhash->{$volid} = 1; | |
284 | }); | |
285 | ||
16e903f2 | 286 | if ($self->{running} && !$sharedvm) { |
3ea94c60 DM |
287 | die "can't do online migration - VM uses local disks\n"; |
288 | } | |
289 | ||
290 | # do some checks first | |
291 | foreach my $volid (keys %$volhash) { | |
292 | my ($sid, $volname) = PVE::Storage::parse_volume_id($volid); | |
16e903f2 | 293 | my $scfg = PVE::Storage::storage_config($self->{storecfg}, $sid); |
3ea94c60 | 294 | |
37a6dc78 | 295 | die "can't migrate '$volid' - storage type '$scfg->{type}' not supported\n" |
adf8ac08 | 296 | if (!($scfg->{type} eq 'dir' || $scfg->{type} eq 'zfspool') && (!$sharedvm)); |
d5604092 | 297 | |
b7b1ac9d | 298 | # if file, check if a backing file exist |
adf8ac08 | 299 | if (!($scfg->{type} eq 'dir' || $scfg->{type} eq 'zfspool') && (!$sharedvm)) { |
d5604092 | 300 | my (undef, undef, undef, $parent) = PVE::Storage::volume_size_info($self->{storecfg}, $volid, 1); |
b7b1ac9d | 301 | die "can't migrate '$volid' as it's a clone of '$parent'" if $parent; |
d5604092 | 302 | } |
3ea94c60 DM |
303 | } |
304 | ||
305 | foreach my $volid (keys %$volhash) { | |
306 | my ($sid, $volname) = PVE::Storage::parse_volume_id($volid); | |
16e903f2 DM |
307 | push @{$self->{volumes}}, $volid; |
308 | PVE::Storage::storage_migrate($self->{storecfg}, $volid, $self->{nodeip}, $sid); | |
3ea94c60 DM |
309 | } |
310 | }; | |
311 | die "Failed to sync data - $@" if $@; | |
312 | } | |
313 | ||
1e3baf05 | 314 | sub phase1 { |
16e903f2 | 315 | my ($self, $vmid) = @_; |
1e3baf05 | 316 | |
16e903f2 | 317 | $self->log('info', "starting migration of VM $vmid to node '$self->{node}' ($self->{nodeip})"); |
1e3baf05 | 318 | |
16e903f2 | 319 | my $conf = $self->{vmconf}; |
1e3baf05 DM |
320 | |
321 | # set migrate lock in config file | |
1858638f | 322 | $conf->{lock} = 'migrate'; |
ffda963f | 323 | PVE::QemuConfig->write_config($vmid, $conf); |
1e3baf05 | 324 | |
16e903f2 | 325 | sync_disks($self, $vmid); |
1ef75254 | 326 | |
1e3baf05 DM |
327 | }; |
328 | ||
16e903f2 DM |
329 | sub phase1_cleanup { |
330 | my ($self, $vmid, $err) = @_; | |
331 | ||
332 | $self->log('info', "aborting phase 1 - cleanup resources"); | |
333 | ||
1858638f DM |
334 | my $conf = $self->{vmconf}; |
335 | delete $conf->{lock}; | |
ffda963f | 336 | eval { PVE::QemuConfig->write_config($vmid, $conf) }; |
16e903f2 DM |
337 | if (my $err = $@) { |
338 | $self->log('err', $err); | |
339 | } | |
f5eb281a | 340 | |
16e903f2 DM |
341 | if ($self->{volumes}) { |
342 | foreach my $volid (@{$self->{volumes}}) { | |
343 | $self->log('err', "found stale volume copy '$volid' on node '$self->{node}'"); | |
344 | # fixme: try to remove ? | |
345 | } | |
346 | } | |
347 | } | |
348 | ||
1e3baf05 | 349 | sub phase2 { |
16e903f2 | 350 | my ($self, $vmid) = @_; |
1e3baf05 | 351 | |
16e903f2 DM |
352 | my $conf = $self->{vmconf}; |
353 | ||
46a84fd4 | 354 | $self->log('info', "starting VM $vmid on remote node '$self->{node}'"); |
1e3baf05 | 355 | |
5bc1e039 | 356 | my $raddr; |
1e3baf05 | 357 | my $rport; |
1c9d54bf | 358 | my $ruri; # the whole migration dst. URI (protocol:address[:port]) |
7e8dcf2c AD |
359 | my $nodename = PVE::INotify::nodename(); |
360 | ||
19672434 | 361 | ## start on remote node |
95a4b4a9 AD |
362 | my $cmd = [@{$self->{rem_ssh}}]; |
363 | ||
7c14dcae | 364 | my $spice_ticket; |
86b8228b | 365 | if (PVE::QemuServer::vga_conf_has_spice($conf->{vga})) { |
95a4b4a9 | 366 | my $res = PVE::QemuServer::vm_mon_cmd($vmid, 'query-spice'); |
7c14dcae | 367 | $spice_ticket = $res->{ticket}; |
95a4b4a9 AD |
368 | } |
369 | ||
1c9d54bf TL |
370 | push @$cmd , 'qm', 'start', $vmid, '--skiplock', '--migratedfrom', $nodename; |
371 | ||
372 | # we use TCP only for unsecure migrations as TCP ssh forward tunnels often | |
373 | # did appeared to late (they are hard, if not impossible, to check for) | |
374 | # secure migration use UNIX sockets now, this *breaks* compatibilty when trying | |
375 | # to migrate from new to old but *not* from old to new. | |
376 | my $datacenterconf = PVE::Cluster::cfs_read_file('datacenter.cfg'); | |
377 | my $secure_migration = ($datacenterconf->{migration_unsecure}) ? 0 : 1; | |
378 | ||
379 | if (!$secure_migration) { | |
380 | push @$cmd, '--stateuri', 'tcp'; | |
381 | } else { | |
382 | push @$cmd, '--stateuri', 'unix'; | |
383 | } | |
95a4b4a9 | 384 | |
42668529 DM |
385 | if ($self->{forcemachine}) { |
386 | push @$cmd, '--machine', $self->{forcemachine}; | |
387 | } | |
388 | ||
86b8228b DM |
389 | my $spice_port; |
390 | ||
7c14dcae DM |
391 | # Note: We try to keep $spice_ticket secret (do not pass via command line parameter) |
392 | # instead we pipe it through STDIN | |
393 | PVE::Tools::run_command($cmd, input => $spice_ticket, outfunc => sub { | |
1e3baf05 DM |
394 | my $line = shift; |
395 | ||
407e0b8b | 396 | if ($line =~ m/^migration listens on tcp:(localhost|[\d\.]+|\[[\d\.:a-fA-F]+\]):(\d+)$/) { |
5bc1e039 SP |
397 | $raddr = $1; |
398 | $rport = int($2); | |
1c9d54bf TL |
399 | $ruri = "tcp:$raddr:$rport"; |
400 | } | |
401 | elsif ($line =~ m!^migration listens on unix:(/run/qemu-server/(\d+)\.migrate)$!) { | |
402 | $raddr = $1; | |
403 | die "Destination UNIX sockets VMID does not match source VMID" if $vmid ne $2; | |
404 | $ruri = "unix:$raddr"; | |
5bc1e039 SP |
405 | } |
406 | elsif ($line =~ m/^migration listens on port (\d+)$/) { | |
407 | $raddr = "localhost"; | |
86b8228b | 408 | $rport = int($1); |
1c9d54bf | 409 | $ruri = "tcp:$raddr:$rport"; |
5bc1e039 SP |
410 | } |
411 | elsif ($line =~ m/^spice listens on port (\d+)$/) { | |
86b8228b | 412 | $spice_port = int($1); |
1e3baf05 | 413 | } |
ab399b7c AD |
414 | }, errfunc => sub { |
415 | my $line = shift; | |
416 | $self->log('info', $line); | |
417 | }); | |
1e3baf05 | 418 | |
5bc1e039 | 419 | die "unable to detect remote migration address\n" if !$raddr; |
1ef75254 | 420 | |
1c9d54bf TL |
421 | if ($secure_migration) { |
422 | $self->log('info', "start remote tunnel"); | |
423 | ||
424 | if ($ruri =~ /^unix:/) { | |
54323eed | 425 | unlink $raddr; |
1c9d54bf TL |
426 | $self->{tunnel} = $self->fork_tunnel("$raddr:$raddr"); |
427 | $self->{tunnel}->{sock_addr} = $raddr; | |
428 | ||
429 | my $unix_socket_try = 0; # wait for the socket to become ready | |
430 | while (! -S $raddr) { | |
431 | $unix_socket_try++; | |
432 | if ($unix_socket_try > 100) { | |
433 | $self->{errors} = 1; | |
434 | $self->finish_tunnel($self->{tunnel}); | |
435 | die "Timeout, migration socket $ruri did not get ready"; | |
436 | } | |
437 | ||
438 | usleep(50000); | |
439 | } | |
440 | ||
441 | } elsif ($ruri =~ /^tcp:/) { | |
442 | # for backwards compatibility with older qemu-server versions | |
443 | my $pfamily = PVE::Tools::get_host_address_family($nodename); | |
444 | my $lport = PVE::Tools::next_migrate_port($pfamily); | |
445 | ||
446 | $self->{tunnel} = $self->fork_tunnel("$lport:localhost:$rport"); | |
447 | ||
448 | } else { | |
449 | die "unsupported protocol in migration URI: $ruri\n"; | |
450 | } | |
451 | } | |
1e3baf05 | 452 | |
1e3baf05 | 453 | my $start = time(); |
1c9d54bf | 454 | $self->log('info', "starting online/live migration on $ruri"); |
5bc1e039 | 455 | $self->{livemigration} = 1; |
e18b0b99 | 456 | |
3beb415b AD |
457 | # load_defaults |
458 | my $defaults = PVE::QemuServer::load_defaults(); | |
459 | ||
460 | # always set migrate speed (overwrite kvm default of 32m) | |
461 | # we set a very hight default of 8192m which is basically unlimited | |
462 | my $migrate_speed = $defaults->{migrate_speed} || 8192; | |
463 | $migrate_speed = $conf->{migrate_speed} || $migrate_speed; | |
464 | $migrate_speed = $migrate_speed * 1048576; | |
465 | $self->log('info', "migrate_set_speed: $migrate_speed"); | |
466 | eval { | |
467 | PVE::QemuServer::vm_mon_cmd_nocheck($vmid, "migrate_set_speed", value => int($migrate_speed)); | |
468 | }; | |
469 | $self->log('info', "migrate_set_speed error: $@") if $@; | |
470 | ||
471 | my $migrate_downtime = $defaults->{migrate_downtime}; | |
472 | $migrate_downtime = $conf->{migrate_downtime} if defined($conf->{migrate_downtime}); | |
473 | if (defined($migrate_downtime)) { | |
474 | $self->log('info', "migrate_set_downtime: $migrate_downtime"); | |
475 | eval { | |
865ef132 | 476 | PVE::QemuServer::vm_mon_cmd_nocheck($vmid, "migrate_set_downtime", value => int($migrate_downtime*100)/100); |
3beb415b AD |
477 | }; |
478 | $self->log('info', "migrate_set_downtime error: $@") if $@; | |
479 | } | |
480 | ||
f34d1466 | 481 | $self->log('info', "set migration_caps"); |
e18b0b99 | 482 | eval { |
a89fded1 | 483 | PVE::QemuServer::set_migration_caps($vmid); |
e18b0b99 | 484 | }; |
a89fded1 | 485 | warn $@ if $@; |
e18b0b99 AD |
486 | |
487 | #set cachesize 10% of the total memory | |
488 | my $cachesize = int($conf->{memory}*1048576/10); | |
f34d1466 | 489 | $self->log('info', "set cachesize: $cachesize"); |
e18b0b99 | 490 | eval { |
f34d1466 | 491 | PVE::QemuServer::vm_mon_cmd_nocheck($vmid, "migrate-set-cache-size", value => int($cachesize)); |
e18b0b99 | 492 | }; |
f34d1466 TL |
493 | $self->log('info', "migrate-set-cache-size error: $@") if $@; |
494 | ||
86b8228b | 495 | if (PVE::QemuServer::vga_conf_has_spice($conf->{vga})) { |
95a4b4a9 AD |
496 | my $rpcenv = PVE::RPCEnvironment::get(); |
497 | my $authuser = $rpcenv->get_user(); | |
498 | ||
86b8228b | 499 | my (undef, $proxyticket) = PVE::AccessControl::assemble_spice_ticket($authuser, $vmid, $self->{node}); |
95a4b4a9 | 500 | |
86b8228b | 501 | my $filename = "/etc/pve/nodes/$self->{node}/pve-ssl.pem"; |
dd25eecf | 502 | my $subject = PVE::AccessControl::read_x509_subject_spice($filename); |
95a4b4a9 AD |
503 | |
504 | $self->log('info', "spice client_migrate_info"); | |
505 | ||
506 | eval { | |
86b8228b DM |
507 | PVE::QemuServer::vm_mon_cmd_nocheck($vmid, "client_migrate_info", protocol => 'spice', |
508 | hostname => $proxyticket, 'tls-port' => $spice_port, | |
509 | 'cert-subject' => $subject); | |
95a4b4a9 AD |
510 | }; |
511 | $self->log('info', "client_migrate_info error: $@") if $@; | |
512 | ||
513 | } | |
514 | ||
f34d1466 | 515 | $self->log('info', "start migrate command to $ruri"); |
5a7835f5 | 516 | eval { |
1c9d54bf | 517 | PVE::QemuServer::vm_mon_cmd_nocheck($vmid, "migrate", uri => $ruri); |
5a7835f5 AD |
518 | }; |
519 | my $merr = $@; | |
1c9d54bf | 520 | $self->log('info', "migrate uri => $ruri failed: $merr") if $merr; |
1e3baf05 | 521 | |
a05b47a8 | 522 | my $lstat = 0; |
e52bd94c AD |
523 | my $usleep = 2000000; |
524 | my $i = 0; | |
b0b756c1 | 525 | my $err_count = 0; |
865ef132 SP |
526 | my $lastrem = undef; |
527 | my $downtimecounter = 0; | |
1e3baf05 | 528 | while (1) { |
e52bd94c AD |
529 | $i++; |
530 | my $avglstat = $lstat/$i if $lstat; | |
531 | ||
b0b756c1 DM |
532 | usleep($usleep); |
533 | my $stat; | |
534 | eval { | |
535 | $stat = PVE::QemuServer::vm_mon_cmd_nocheck($vmid, "query-migrate"); | |
536 | }; | |
537 | if (my $err = $@) { | |
538 | $err_count++; | |
539 | warn "query migrate failed: $err\n"; | |
f34d1466 | 540 | $self->log('info', "query migrate failed: $err"); |
b0b756c1 DM |
541 | if ($err_count <= 5) { |
542 | usleep(1000000); | |
543 | next; | |
544 | } | |
545 | die "too many query migrate failures - aborting\n"; | |
546 | } | |
985a5f48 | 547 | |
f34d1466 | 548 | if (defined($stat->{status}) && $stat->{status} =~ m/^(setup)$/im) { |
985a5f48 AD |
549 | sleep(1); |
550 | next; | |
551 | } | |
552 | ||
f34d1466 | 553 | if (defined($stat->{status}) && $stat->{status} =~ m/^(active|completed|failed|cancelled)$/im) { |
d68afb26 | 554 | $merr = undef; |
b0b756c1 | 555 | $err_count = 0; |
5a7835f5 | 556 | if ($stat->{status} eq 'completed') { |
1e3baf05 DM |
557 | my $delay = time() - $start; |
558 | if ($delay > 0) { | |
559 | my $mbps = sprintf "%.2f", $conf->{memory}/$delay; | |
135007c0 AD |
560 | my $downtime = $stat->{downtime} || 0; |
561 | $self->log('info', "migration speed: $mbps MB/s - downtime $downtime ms"); | |
1e3baf05 DM |
562 | } |
563 | } | |
f5eb281a | 564 | |
5a7835f5 | 565 | if ($stat->{status} eq 'failed' || $stat->{status} eq 'cancelled') { |
f34d1466 | 566 | $self->log('info', "migration status error: $stat->{status}"); |
1e3baf05 DM |
567 | die "aborting\n" |
568 | } | |
569 | ||
a05b47a8 DM |
570 | if ($stat->{status} ne 'active') { |
571 | $self->log('info', "migration status: $stat->{status}"); | |
572 | last; | |
573 | } | |
574 | ||
575 | if ($stat->{ram}->{transferred} ne $lstat) { | |
576 | my $trans = $stat->{ram}->{transferred} || 0; | |
577 | my $rem = $stat->{ram}->{remaining} || 0; | |
578 | my $total = $stat->{ram}->{total} || 0; | |
e18b0b99 AD |
579 | my $xbzrlecachesize = $stat->{"xbzrle-cache"}->{"cache-size"} || 0; |
580 | my $xbzrlebytes = $stat->{"xbzrle-cache"}->{"bytes"} || 0; | |
581 | my $xbzrlepages = $stat->{"xbzrle-cache"}->{"pages"} || 0; | |
582 | my $xbzrlecachemiss = $stat->{"xbzrle-cache"}->{"cache-miss"} || 0; | |
583 | my $xbzrleoverflow = $stat->{"xbzrle-cache"}->{"overflow"} || 0; | |
e52bd94c | 584 | #reduce sleep if remainig memory if lower than the everage transfert |
94235c59 | 585 | $usleep = 300000 if $avglstat && $rem < $avglstat; |
a05b47a8 DM |
586 | |
587 | $self->log('info', "migration status: $stat->{status} (transferred ${trans}, " . | |
0302101c | 588 | "remaining ${rem}), total ${total})"); |
e18b0b99 | 589 | |
2e787b18 SP |
590 | if (${xbzrlecachesize}) { |
591 | $self->log('info', "migration xbzrle cachesize: ${xbzrlecachesize} transferred ${xbzrlebytes} pages ${xbzrlepages} cachemiss ${xbzrlecachemiss} overflow ${xbzrleoverflow}"); | |
592 | } | |
593 | ||
865ef132 SP |
594 | if (($lastrem && $rem > $lastrem ) || ($rem == 0)) { |
595 | $downtimecounter++; | |
596 | } | |
597 | $lastrem = $rem; | |
598 | ||
599 | if ($downtimecounter > 5) { | |
600 | $downtimecounter = 0; | |
601 | $migrate_downtime *= 2; | |
602 | $self->log('info', "migrate_set_downtime: $migrate_downtime"); | |
603 | eval { | |
604 | PVE::QemuServer::vm_mon_cmd_nocheck($vmid, "migrate_set_downtime", value => int($migrate_downtime*100)/100); | |
605 | }; | |
606 | $self->log('info', "migrate_set_downtime error: $@") if $@; | |
607 | } | |
608 | ||
a05b47a8 DM |
609 | } |
610 | ||
865ef132 | 611 | |
a05b47a8 | 612 | $lstat = $stat->{ram}->{transferred}; |
e52bd94c | 613 | |
1e3baf05 | 614 | } else { |
d68afb26 | 615 | die $merr if $merr; |
5a7835f5 | 616 | die "unable to parse migration status '$stat->{status}' - aborting\n"; |
1e3baf05 | 617 | } |
a05b47a8 | 618 | } |
92437b8d TL |
619 | |
620 | # just to be sure that the tunnel gets closed on successful migration, on error | |
621 | # phase2_cleanup closes it *after* stopping the remote waiting VM | |
622 | if (!$self->{errors} && $self->{tunnel}) { | |
386c6ba7 WL |
623 | eval { finish_tunnel($self, $self->{tunnel}); }; |
624 | if (my $err = $@) { | |
625 | $self->log('err', $err); | |
626 | $self->{errors} = 1; | |
627 | } | |
628 | } | |
1e3baf05 | 629 | } |
16e903f2 | 630 | |
c04b5b04 AD |
631 | sub phase2_cleanup { |
632 | my ($self, $vmid, $err) = @_; | |
633 | ||
af30308f DM |
634 | return if !$self->{errors}; |
635 | $self->{phase2errors} = 1; | |
636 | ||
c04b5b04 AD |
637 | $self->log('info', "aborting phase 2 - cleanup resources"); |
638 | ||
19168b91 SP |
639 | $self->log('info', "migrate_cancel"); |
640 | eval { | |
641 | PVE::QemuServer::vm_mon_cmd_nocheck($vmid, "migrate_cancel"); | |
642 | }; | |
643 | $self->log('info', "migrate_cancel error: $@") if $@; | |
644 | ||
c04b5b04 AD |
645 | my $conf = $self->{vmconf}; |
646 | delete $conf->{lock}; | |
ffda963f | 647 | eval { PVE::QemuConfig->write_config($vmid, $conf) }; |
c04b5b04 AD |
648 | if (my $err = $@) { |
649 | $self->log('err', $err); | |
650 | } | |
651 | ||
af30308f DM |
652 | # cleanup ressources on target host |
653 | my $nodename = PVE::INotify::nodename(); | |
654 | ||
655 | my $cmd = [@{$self->{rem_ssh}}, 'qm', 'stop', $vmid, '--skiplock', '--migratedfrom', $nodename]; | |
656 | eval{ PVE::Tools::run_command($cmd, outfunc => sub {}, errfunc => sub {}) }; | |
657 | if (my $err = $@) { | |
658 | $self->log('err', $err); | |
659 | $self->{errors} = 1; | |
660 | } | |
386c6ba7 WL |
661 | |
662 | if ($self->{tunnel}) { | |
663 | eval { finish_tunnel($self, $self->{tunnel}); }; | |
664 | if (my $err = $@) { | |
665 | $self->log('err', $err); | |
666 | $self->{errors} = 1; | |
667 | } | |
668 | } | |
c04b5b04 AD |
669 | } |
670 | ||
16e903f2 DM |
671 | sub phase3 { |
672 | my ($self, $vmid) = @_; | |
f5eb281a | 673 | |
16e903f2 | 674 | my $volids = $self->{volumes}; |
af30308f | 675 | return if $self->{phase2errors}; |
16e903f2 DM |
676 | |
677 | # destroy local copies | |
678 | foreach my $volid (@$volids) { | |
679 | eval { PVE::Storage::vdisk_free($self->{storecfg}, $volid); }; | |
680 | if (my $err = $@) { | |
681 | $self->log('err', "removing local copy of '$volid' failed - $err"); | |
682 | $self->{errors} = 1; | |
683 | last if $err =~ /^interrupted by signal$/; | |
684 | } | |
685 | } | |
16e903f2 DM |
686 | } |
687 | ||
688 | sub phase3_cleanup { | |
689 | my ($self, $vmid, $err) = @_; | |
690 | ||
691 | my $conf = $self->{vmconf}; | |
af30308f | 692 | return if $self->{phase2errors}; |
16e903f2 | 693 | |
b8d20802 | 694 | # move config to remote node |
ffda963f FG |
695 | my $conffile = PVE::QemuConfig->config_file($vmid); |
696 | my $newconffile = PVE::QemuConfig->config_file($vmid, $self->{node}); | |
b8d20802 AD |
697 | |
698 | die "Failed to move config to node '$self->{node}' - rename failed: $!\n" | |
699 | if !rename($conffile, $newconffile); | |
700 | ||
5bc1e039 SP |
701 | if ($self->{livemigration}) { |
702 | # now that config file is move, we can resume vm on target if livemigrate | |
289e0b85 | 703 | my $cmd = [@{$self->{rem_ssh}}, 'qm', 'resume', $vmid, '--skiplock', '--nocheck']; |
d5f315fd AD |
704 | eval{ PVE::Tools::run_command($cmd, outfunc => sub {}, |
705 | errfunc => sub { | |
706 | my $line = shift; | |
707 | $self->log('err', $line); | |
708 | }); | |
709 | }; | |
f5eb281a | 710 | if (my $err = $@) { |
b67900f1 AD |
711 | $self->log('err', $err); |
712 | $self->{errors} = 1; | |
713 | } | |
714 | } | |
715 | ||
fd8469f7 AD |
716 | eval { |
717 | ||
718 | my $timer = 0; | |
719 | if (PVE::QemuServer::vga_conf_has_spice($conf->{vga}) && $self->{running}) { | |
720 | $self->log('info', "Waiting for spice server migration"); | |
721 | while (1) { | |
722 | my $res = PVE::QemuServer::vm_mon_cmd_nocheck($vmid, 'query-spice'); | |
723 | last if int($res->{'migrated'}) == 1; | |
724 | last if $timer > 50; | |
725 | $timer ++; | |
726 | usleep(200000); | |
727 | } | |
728 | } | |
729 | }; | |
95a4b4a9 | 730 | |
16e903f2 DM |
731 | # always stop local VM |
732 | eval { PVE::QemuServer::vm_stop($self->{storecfg}, $vmid, 1, 1); }; | |
733 | if (my $err = $@) { | |
734 | $self->log('err', "stopping vm failed - $err"); | |
735 | $self->{errors} = 1; | |
736 | } | |
737 | ||
738 | # always deactivate volumes - avoid lvm LVs to be active on several nodes | |
739 | eval { | |
740 | my $vollist = PVE::QemuServer::get_vm_volumes($conf); | |
741 | PVE::Storage::deactivate_volumes($self->{storecfg}, $vollist); | |
742 | }; | |
743 | if (my $err = $@) { | |
744 | $self->log('err', $err); | |
745 | $self->{errors} = 1; | |
746 | } | |
747 | ||
748 | # clear migrate lock | |
749 | my $cmd = [ @{$self->{rem_ssh}}, 'qm', 'unlock', $vmid ]; | |
750 | $self->cmd_logerr($cmd, errmsg => "failed to clear migrate lock"); | |
751 | } | |
752 | ||
753 | sub final_cleanup { | |
754 | my ($self, $vmid) = @_; | |
755 | ||
756 | # nothing to do | |
757 | } | |
758 | ||
759 | 1; |