use strict;
use warnings;
-use POSIX qw(strftime);
+use PVE::AbstractMigrate;
use IO::File;
use IPC::Open2;
-use PVE::Tools qw(run_command);
-use PVE::SafeSyslog;
use PVE::INotify;
+use PVE::Tools;
use PVE::Cluster;
use PVE::Storage;
use PVE::QemuServer;
+use Time::HiRes qw( usleep );
+use PVE::RPCEnvironment;
-my $delayed_interrupt = 0;
-
-# blowfish is a fast block cipher, much faster then 3des
-my @ssh_opts = ('-c', 'blowfish', '-o', 'BatchMode=yes');
-my @ssh_cmd = ('/usr/bin/ssh', @ssh_opts);
-my @scp_cmd = ('/usr/bin/scp', @ssh_opts);
-my $qm_cmd = '/usr/sbin/qm';
-
-sub logmsg {
- my ($level, $msg) = @_;
-
- chomp $msg;
-
- return if !$msg;
-
- my $tstr = strftime("%b %d %H:%M:%S", localtime);
-
- syslog($level, $msg);
-
- foreach my $line (split (/\n/, $msg)) {
- print STDOUT "$tstr $line\n";
- }
- \*STDOUT->flush();
-}
-
-sub eval_int {
- my ($func) = @_;
-
- eval {
- local $SIG{INT} = $SIG{TERM} = $SIG{QUIT} = $SIG{HUP} = sub {
- $delayed_interrupt = 0;
- logmsg('err', "received interrupt");
- die "interrupted by signal\n";
- };
- local $SIG{PIPE} = sub {
- $delayed_interrupt = 0;
- logmsg('err', "received broken pipe interrupt");
- die "interrupted by signal\n";
- };
-
- my $di = $delayed_interrupt;
- $delayed_interrupt = 0;
-
- die "interrupted by signal\n" if $di;
-
- &$func();
- };
-}
+use base qw(PVE::AbstractMigrate);
sub fork_command_pipe {
- my ($cmd) = @_;
+ my ($self, $cmd) = @_;
my $reader = IO::File->new();
my $writer = IO::File->new();
# catch exec errors
if ($orig_pid != $$) {
- logmsg('err', "can't fork command pipe\n");
+ $self->log('err', "can't fork command pipe\n");
POSIX::_exit(1);
kill('KILL', $$);
}
}
sub finish_command_pipe {
- my $cmdpipe = shift;
+ my ($self, $cmdpipe, $timeout) = @_;
my $writer = $cmdpipe->{writer};
my $reader = $cmdpipe->{reader};
my $cpid = $cmdpipe->{pid};
- kill(15, $cpid) if kill(0, $cpid);
-
- waitpid($cpid, 0);
-}
-
-sub run_with_timeout {
- my ($timeout, $code, @param) = @_;
-
- die "got timeout\n" if $timeout <= 0;
-
- my $prev_alarm;
-
- my $sigcount = 0;
-
- my $res;
-
- eval {
- local $SIG{ALRM} = sub { $sigcount++; die "got timeout\n"; };
- local $SIG{PIPE} = sub { $sigcount++; die "broken pipe\n" };
- local $SIG{__DIE__}; # see SA bug 4631
-
- $prev_alarm = alarm($timeout);
-
- $res = &$code(@param);
-
- alarm(0); # avoid race conditions
- };
-
- my $err = $@;
-
- alarm($prev_alarm) if defined($prev_alarm);
+ if ($timeout) {
+ for (my $i = 0; $i < $timeout; $i++) {
+ return if !PVE::ProcFSTools::check_process_running($cpid);
+ sleep(1);
+ }
+ }
- die "unknown error" if $sigcount && !$err; # seems to happen sometimes
+ $self->log('info', "ssh tunnel still running - terminating now with SIGTERM\n");
+ kill(15, $cpid);
- die $err if $err;
+ # wait again
+ for (my $i = 0; $i < 10; $i++) {
+ return if !PVE::ProcFSTools::check_process_running($cpid);
+ sleep(1);
+ }
- return $res;
+ $self->log('info', "ssh tunnel still running - terminating now with SIGKILL\n");
+ kill 9, $cpid;
+ sleep 1;
}
sub fork_tunnel {
- my ($nodeip, $lport, $rport) = @_;
+ my ($self, $nodeip, $lport, $rport) = @_;
+
+ my @localtunnelinfo = $lport ? ('-L' , "$lport:localhost:$rport" ) : ();
- my $cmd = [@ssh_cmd, '-o', 'BatchMode=yes',
- '-L', "$lport:localhost:$rport", $nodeip,
- 'qm', 'mtunnel' ];
+ my $cmd = [@{$self->{rem_ssh}}, @localtunnelinfo, 'qm', 'mtunnel' ];
- my $tunnel = fork_command_pipe($cmd);
+ my $tunnel = $self->fork_command_pipe($cmd);
my $reader = $tunnel->{reader};
my $helo;
eval {
- run_with_timeout(60, sub { $helo = <$reader>; });
+ PVE::Tools::run_with_timeout(60, sub { $helo = <$reader>; });
die "no reply\n" if !$helo;
die "no quorum on target node\n" if $helo =~ m/^no quorum$/;
die "got strange reply from mtunnel ('$helo')\n"
my $err = $@;
if ($err) {
- finish_command_pipe($tunnel);
+ $self->finish_command_pipe($tunnel);
die "can't open migration tunnel - $err";
}
return $tunnel;
}
sub finish_tunnel {
- my $tunnel = shift;
+ my ($self, $tunnel) = @_;
my $writer = $tunnel->{writer};
eval {
- run_with_timeout(30, sub {
+ PVE::Tools::run_with_timeout(30, sub {
print $writer "quit\n";
$writer->flush();
});
};
my $err = $@;
- finish_command_pipe($tunnel);
+ $self->finish_command_pipe($tunnel, 30);
die $err if $err;
}
-sub migrate {
- my ($node, $nodeip, $vmid, $online, $force) = @_;
-
- my $starttime = time();
-
- my $rem_ssh = [@ssh_cmd, "root\@$nodeip"];
-
- local $SIG{INT} = $SIG{TERM} = $SIG{QUIT} = $SIG{HUP} = $SIG{PIPE} = sub {
- logmsg('err', "received interrupt - delayed");
- $delayed_interrupt = 1;
- };
-
- local $ENV{RSYNC_RSH} = join(' ', @ssh_cmd);
-
- my $session = {
- vmid => $vmid,
- node => $node,
- nodeip => $nodeip,
- force => $force,
- storecfg => PVE::Storage::config(),
- rem_ssh => $rem_ssh,
- };
-
- my $errors;
-
- # lock config during migration
- eval { PVE::QemuServer::lock_config($vmid, sub {
-
- eval_int(sub { prepare($session); });
- die $@ if $@;
-
- my $conf = PVE::QemuServer::load_config($vmid);
+sub lock_vm {
+ my ($self, $vmid, $code, @param) = @_;
- PVE::QemuServer::check_lock($conf);
-
- my $running = 0;
- if (my $pid = PVE::QemuServer::check_running($vmid)) {
- die "cant migrate running VM without --online\n" if !$online;
- $running = $pid;
- }
-
- my $rhash = {};
- eval_int (sub { phase1($session, $conf, $rhash, $running); });
- my $err = $@;
-
- if ($err) {
- if ($rhash->{clearlock}) {
- my $unset = { lock => 1 };
- eval { PVE::QemuServer::change_config_nolock($session->{vmid}, {}, $unset, 1) };
- logmsg('err', $@) if $@;
- }
- if ($rhash->{volumes}) {
- foreach my $volid (@{$rhash->{volumes}}) {
- logmsg('err', "found stale volume copy '$volid' on node '$session->{node}'");
- }
- }
- die $err;
- }
-
- # vm is now owned by other node
- my $volids = $rhash->{volumes};
-
- if ($running) {
-
- $rhash = {};
- eval_int(sub { phase2($session, $conf, $rhash); });
- my $err = $@;
-
- # always kill tunnel
- if ($rhash->{tunnel}) {
- eval_int(sub { finish_tunnel($rhash->{tunnel}) });
- if ($@) {
- logmsg('err', "stopping tunnel failed - $@");
- $errors = 1;
- }
- }
-
- # fixme: ther is no config file, so this will never work
- # fixme: use kill(9, $running) to make sure it is stopped
- # always stop local VM - no interrupts possible
- eval { PVE::QemuServer::vm_stop($session->{vmid}, 1); };
- if ($@) {
- logmsg('err', "stopping vm failed - $@");
- $errors = 1;
- }
+ return PVE::QemuServer::lock_config($vmid, $code, @param);
+}
- if ($err) {
- $errors = 1;
- logmsg('err', "online migrate failure - $err");
- }
- }
+sub prepare {
+ my ($self, $vmid) = @_;
- # finalize -- clear migrate lock
- eval_int(sub {
- my $cmd = [ @{$session->{rem_ssh}}, $qm_cmd, 'unlock', $session->{vmid} ];
- run_command($cmd);
- });
- if ($@) {
- logmsg('err', "failed to clear migrate lock - $@");
- $errors = 1;
- }
+ my $online = $self->{opts}->{online};
- # destroy local copies
- foreach my $volid (@$volids) {
- eval_int(sub { PVE::Storage::vdisk_free($session->{storecfg}, $volid); });
- my $err = $@;
+ $self->{storecfg} = PVE::Storage::config();
- if ($err) {
- logmsg('err', "removing local copy of '$volid' failed - $err");
- $errors = 1;
+ # test is VM exist
+ my $conf = $self->{vmconf} = PVE::QemuServer::load_config($vmid);
- last if $err =~ /^interrupted by signal$/;
- }
- }
- })};
+ PVE::QemuServer::check_lock($conf);
- my $err = $@;
-
- my $delay = time() - $starttime;
- my $mins = int($delay/60);
- my $secs = $delay - $mins*60;
- my $hours = int($mins/60);
- $mins = $mins - $hours*60;
-
- my $duration = sprintf "%02d:%02d:%02d", $hours, $mins, $secs;
-
- if ($err) {
- my $msg = "migration aborted (duration $duration): $err\n";
- logmsg('err', $msg);
- die $msg;
+ my $running = 0;
+ if (my $pid = PVE::QemuServer::check_running($vmid)) {
+ die "cant migrate running VM without --online\n" if !$online;
+ $running = $pid;
+ $self->{forcemachine} = PVE::QemuServer::get_current_qemu_machine($vmid);
}
- if ($errors) {
- my $msg = "migration finished with problems (duration $duration)\n";
- logmsg('err', $msg);
- die $msg;
+ if (my $loc_res = PVE::QemuServer::check_local_resources($conf, 1)) {
+ if ($self->{running} || !$self->{opts}->{force}) {
+ die "can't migrate VM which uses local devices\n";
+ } else {
+ $self->log('info', "migrating VM which uses local devices");
+ }
}
- logmsg('info', "migration finished successfuly (duration $duration)");
-}
-
-sub prepare {
- my ($session) = @_;
+ # activate volumes
+ my $vollist = PVE::QemuServer::get_vm_volumes($conf);
+ PVE::Storage::activate_volumes($self->{storecfg}, $vollist);
- my $conffile = PVE::QemuServer::config_file($session->{vmid});
- die "VM $session->{vmid} does not exist on this node\n" if ! -f $conffile;
+ # fixme: check if storage is available on both nodes
# test ssh connection
- my $cmd = [ @{$session->{rem_ssh}}, '/bin/true' ];
- eval { run_command($cmd); };
+ my $cmd = [ @{$self->{rem_ssh}}, '/bin/true' ];
+ eval { $self->cmd_quiet($cmd); };
die "Can't connect to destination address using public key\n" if $@;
+
+ return $running;
}
sub sync_disks {
- my ($session, $conf, $rhash, $running) = @_;
+ my ($self, $vmid) = @_;
- logmsg('info', "copying disk images");
+ $self->log('info', "copying disk images");
+
+ my $conf = $self->{vmconf};
+
+ $self->{volumes} = [];
my $res = [];
my $volhash = {};
my $cdromhash = {};
- # get list from PVE::Storage (for unused volumes)
- my $dl = PVE::Storage::vdisk_list($session->{storecfg}, undef, $session->{vmid});
- PVE::Storage::foreach_volid($dl, sub {
- my ($volid, $sid, $volname) = @_;
+ my $sharedvm = 1;
- my $scfg = PVE::Storage::storage_config($session->{storecfg}, $sid);
+ my @sids = PVE::Storage::storage_ids($self->{storecfg});
+ foreach my $storeid (@sids) {
+ my $scfg = PVE::Storage::storage_config($self->{storecfg}, $storeid);
+ next if $scfg->{shared};
+ next if !PVE::Storage::storage_check_enabled($self->{storecfg}, $storeid, undef, 1);
- return if $scfg->{shared};
+ # get list from PVE::Storage (for unused volumes)
+ my $dl = PVE::Storage::vdisk_list($self->{storecfg}, $storeid, $vmid);
+ PVE::Storage::foreach_volid($dl, sub {
+ my ($volid, $sid, $volname) = @_;
- $volhash->{$volid} = 1;
- });
+ # check if storage is available on target node
+ PVE::Storage::storage_check_node($self->{storecfg}, $sid, $self->{node});
- # and add used,owned/non-shared disks (just to be sure we have all)
+ $volhash->{$volid} = 1;
+ $sharedvm = 0; # there is a non-shared disk
+ });
+ }
- my $sharedvm = 1;
- PVE::QemuServer::foreach_drive($conf, sub {
- my ($ds, $drive) = @_;
+ # and add used, owned/non-shared disks (just to be sure we have all)
+
+ PVE::QemuServer::foreach_volid($conf, sub {
+ my ($volid, $is_cdrom) = @_;
- my $volid = $drive->{file};
return if !$volid;
die "cant migrate local file/device '$volid'\n" if $volid =~ m|^/|;
- if (PVE::QemuServer::drive_is_cdrom($drive)) {
+ if ($is_cdrom) {
die "cant migrate local cdrom drive\n" if $volid eq 'cdrom';
return if $volid eq 'none';
$cdromhash->{$volid} = 1;
my ($sid, $volname) = PVE::Storage::parse_volume_id($volid);
- my $scfg = PVE::Storage::storage_config($session->{storecfg}, $sid);
+ # check if storage is available on both nodes
+ my $scfg = PVE::Storage::storage_check_node($self->{storecfg}, $sid);
+ PVE::Storage::storage_check_node($self->{storecfg}, $sid, $self->{node});
return if $scfg->{shared};
$sharedvm = 0;
- my ($path, $owner) = PVE::Storage::path($session->{storecfg}, $volid);
+ my ($path, $owner) = PVE::Storage::path($self->{storecfg}, $volid);
die "can't migrate volume '$volid' - owned by other VM (owner = VM $owner)\n"
- if !$owner || ($owner != $session->{vmid});
+ if !$owner || ($owner != $self->{vmid});
$volhash->{$volid} = 1;
});
- if ($running && !$sharedvm) {
+ if ($self->{running} && !$sharedvm) {
die "can't do online migration - VM uses local disks\n";
}
# do some checks first
foreach my $volid (keys %$volhash) {
my ($sid, $volname) = PVE::Storage::parse_volume_id($volid);
- my $scfg = PVE::Storage::storage_config($session->{storecfg}, $sid);
+ my $scfg = PVE::Storage::storage_config($self->{storecfg}, $sid);
die "can't migrate '$volid' - storagy type '$scfg->{type}' not supported\n"
if $scfg->{type} ne 'dir';
+
+ # if file, check if a backing file exist
+ if (($scfg->{type} eq 'dir') && (!$sharedvm)) {
+ my (undef, undef, undef, $parent) = PVE::Storage::volume_size_info($self->{storecfg}, $volid, 1);
+ die "can't migrate '$volid' as it's a clone of '$parent'" if $parent;
+ }
}
foreach my $volid (keys %$volhash) {
my ($sid, $volname) = PVE::Storage::parse_volume_id($volid);
- push @{$rhash->{volumes}}, $volid;
- PVE::Storage::storage_migrate($session->{storecfg}, $volid, $session->{nodeip}, $sid);
+ push @{$self->{volumes}}, $volid;
+ PVE::Storage::storage_migrate($self->{storecfg}, $volid, $self->{nodeip}, $sid);
}
};
die "Failed to sync data - $@" if $@;
}
sub phase1 {
- my ($session, $conf, $rhash, $running) = @_;
+ my ($self, $vmid) = @_;
- logmsg('info', "starting migration of VM $session->{vmid} to node '$session->{node}' ($session->{nodeip})");
+ $self->log('info', "starting migration of VM $vmid to node '$self->{node}' ($self->{nodeip})");
- if (my $loc_res = PVE::QemuServer::check_local_resources($conf, 1)) {
- if ($running || !$session->{force}) {
- die "can't migrate VM which uses local devices\n";
- } else {
- logmsg('info', "migrating VM which uses local devices");
- }
- }
+ my $conf = $self->{vmconf};
# set migrate lock in config file
- $rhash->{clearlock} = 1;
+ $conf->{lock} = 'migrate';
+ PVE::QemuServer::update_config_nolock($vmid, $conf, 1);
- PVE::QemuServer::change_config_nolock($session->{vmid}, { lock => 'migrate' }, {}, 1);
+ sync_disks($self, $vmid);
- sync_disks($session, $conf, $rhash, $running);
+};
- # move config to remote node
- my $conffile = PVE::QemuServer::config_file($session->{vmid});
- my $newconffile = PVE::QemuServer::config_file($session->{vmid}, $session->{node});
+sub phase1_cleanup {
+ my ($self, $vmid, $err) = @_;
- die "Failed to move config to node '$session->{node}' - rename failed: $!\n"
- if !rename($conffile, $newconffile);
-};
+ $self->log('info', "aborting phase 1 - cleanup resources");
+
+ my $conf = $self->{vmconf};
+ delete $conf->{lock};
+ eval { PVE::QemuServer::update_config_nolock($vmid, $conf, 1) };
+ if (my $err = $@) {
+ $self->log('err', $err);
+ }
+
+ if ($self->{volumes}) {
+ foreach my $volid (@{$self->{volumes}}) {
+ $self->log('err', "found stale volume copy '$volid' on node '$self->{node}'");
+ # fixme: try to remove ?
+ }
+ }
+}
sub phase2 {
- my ($session, $conf, $rhash) = shift;
+ my ($self, $vmid) = @_;
+
+ my $conf = $self->{vmconf};
- logmsg('info', "starting VM on remote node '$session->{node}'");
+ $self->log('info', "starting VM $vmid on remote node '$self->{node}'");
+ my $raddr;
my $rport;
+ my $nodename = PVE::INotify::nodename();
## start on remote node
- my $cmd = [@{$session->{rem_ssh}}, $qm_cmd, 'start',
- $session->{vmid}, '--stateuri', 'tcp', '--skiplock'];
+ my $cmd = [@{$self->{rem_ssh}}];
- run_command($cmd, outfunc => sub {
+ my $spice_ticket;
+ if (PVE::QemuServer::vga_conf_has_spice($conf->{vga})) {
+ my $res = PVE::QemuServer::vm_mon_cmd($vmid, 'query-spice');
+ $spice_ticket = $res->{ticket};
+ }
+
+ push @$cmd , 'qm', 'start', $vmid, '--stateuri', 'tcp', '--skiplock', '--migratedfrom', $nodename;
+
+ if ($self->{forcemachine}) {
+ push @$cmd, '--machine', $self->{forcemachine};
+ }
+
+ my $spice_port;
+
+ # Note: We try to keep $spice_ticket secret (do not pass via command line parameter)
+ # instead we pipe it through STDIN
+ PVE::Tools::run_command($cmd, input => $spice_ticket, outfunc => sub {
my $line = shift;
- if ($line =~ m/^migration listens on port (\d+)$/) {
- $rport = $1;
+ if ($line =~ m/^migration listens on tcp:([\d\.]+|localhost):(\d+)$/) {
+ $raddr = $1;
+ $rport = int($2);
}
+ elsif ($line =~ m/^migration listens on port (\d+)$/) {
+ $raddr = "localhost";
+ $rport = int($1);
+ }
+ elsif ($line =~ m/^spice listens on port (\d+)$/) {
+ $spice_port = int($1);
+ }
+ }, errfunc => sub {
+ my $line = shift;
+ $self->log('info', $line);
});
- die "unable to detect remote migration port\n" if !$rport;
-
- logmsg('info', "starting migration tunnel");
+ die "unable to detect remote migration address\n" if !$raddr;
## create tunnel to remote port
- my $lport = PVE::QemuServer::next_migrate_port();
- $rhash->{tunnel} = fork_tunnel($session->{nodeip}, $lport, $rport);
-
- logmsg('info', "starting online/live migration");
- # start migration
+ $self->log('info', "starting ssh migration tunnel");
+ my $lport = ($raddr eq "localhost") ? PVE::Tools::next_migrate_port() : undef;
+ $self->{tunnel} = $self->fork_tunnel($self->{nodeip}, $lport, $rport);
my $start = time();
+ $self->log('info', "starting online/live migration on $raddr:$rport");
+ $self->{livemigration} = 1;
+
+ # load_defaults
+ my $defaults = PVE::QemuServer::load_defaults();
+
+ # always set migrate speed (overwrite kvm default of 32m)
+ # we set a very hight default of 8192m which is basically unlimited
+ my $migrate_speed = $defaults->{migrate_speed} || 8192;
+ $migrate_speed = $conf->{migrate_speed} || $migrate_speed;
+ $migrate_speed = $migrate_speed * 1048576;
+ $self->log('info', "migrate_set_speed: $migrate_speed");
+ eval {
+ PVE::QemuServer::vm_mon_cmd_nocheck($vmid, "migrate_set_speed", value => int($migrate_speed));
+ };
+ $self->log('info', "migrate_set_speed error: $@") if $@;
+
+ my $migrate_downtime = $defaults->{migrate_downtime};
+ $migrate_downtime = $conf->{migrate_downtime} if defined($conf->{migrate_downtime});
+ if (defined($migrate_downtime)) {
+ $self->log('info', "migrate_set_downtime: $migrate_downtime");
+ eval {
+ PVE::QemuServer::vm_mon_cmd_nocheck($vmid, "migrate_set_downtime", value => int($migrate_downtime*100)/100);
+ };
+ $self->log('info', "migrate_set_downtime error: $@") if $@;
+ }
- PVE::QemuServer::vm_monitor_command($session->{vmid}, "migrate -d \"tcp:localhost:$lport\"");
+ my $capabilities = {};
+ $capabilities->{capability} = "xbzrle";
+ $capabilities->{state} = JSON::false;
- my $lstat = '';
+ eval {
+ PVE::QemuServer::vm_mon_cmd_nocheck($vmid, "migrate-set-capabilities", capabilities => [$capabilities]);
+ };
+
+ #set cachesize 10% of the total memory
+ my $cachesize = int($conf->{memory}*1048576/10);
+ eval {
+ PVE::QemuServer::vm_mon_cmd_nocheck($vmid, "migrate-set-cache-size", value => $cachesize);
+ };
+
+ if (PVE::QemuServer::vga_conf_has_spice($conf->{vga})) {
+ my $rpcenv = PVE::RPCEnvironment::get();
+ my $authuser = $rpcenv->get_user();
+
+ my (undef, $proxyticket) = PVE::AccessControl::assemble_spice_ticket($authuser, $vmid, $self->{node});
+
+ my $filename = "/etc/pve/nodes/$self->{node}/pve-ssl.pem";
+ my $subject = PVE::QemuServer::read_x509_subject_spice($filename);
+
+ $self->log('info', "spice client_migrate_info");
+
+ eval {
+ PVE::QemuServer::vm_mon_cmd_nocheck($vmid, "client_migrate_info", protocol => 'spice',
+ hostname => $proxyticket, 'tls-port' => $spice_port,
+ 'cert-subject' => $subject);
+ };
+ $self->log('info', "client_migrate_info error: $@") if $@;
+
+ }
+
+ eval {
+ PVE::QemuServer::vm_mon_cmd_nocheck($vmid, "migrate", uri => "tcp:$raddr:$rport");
+ };
+ my $merr = $@;
+ $self->log('info', "migrate uri => tcp:$raddr:$rport failed: $merr") if $merr;
+
+ my $lstat = 0;
+ my $usleep = 2000000;
+ my $i = 0;
+ my $err_count = 0;
+ my $lastrem = undef;
+ my $downtimecounter = 0;
while (1) {
- sleep (2);
- my $stat = PVE::QemuServer::vm_monitor_command($session->{vmid}, "info migrate", 1);
- if ($stat =~ m/^Migration status: (active|completed|failed|cancelled)$/im) {
- my $ms = $1;
-
- if ($stat ne $lstat) {
- if ($ms eq 'active') {
- my ($trans, $rem, $total) = (0, 0, 0);
- $trans = $1 if $stat =~ m/^transferred ram: (\d+) kbytes$/im;
- $rem = $1 if $stat =~ m/^remaining ram: (\d+) kbytes$/im;
- $total = $1 if $stat =~ m/^total ram: (\d+) kbytes$/im;
-
- logmsg('info', "migration status: $ms (transferred ${trans}KB, " .
- "remaining ${rem}KB), total ${total}KB)");
- } else {
- logmsg('info', "migration status: $ms");
- }
- }
+ $i++;
+ my $avglstat = $lstat/$i if $lstat;
- if ($ms eq 'completed') {
+ usleep($usleep);
+ my $stat;
+ eval {
+ $stat = PVE::QemuServer::vm_mon_cmd_nocheck($vmid, "query-migrate");
+ };
+ if (my $err = $@) {
+ $err_count++;
+ warn "query migrate failed: $err\n";
+ if ($err_count <= 5) {
+ usleep(1000000);
+ next;
+ }
+ die "too many query migrate failures - aborting\n";
+ }
+ if ($stat->{status} =~ m/^(active|completed|failed|cancelled)$/im) {
+ $merr = undef;
+ $err_count = 0;
+ if ($stat->{status} eq 'completed') {
my $delay = time() - $start;
if ($delay > 0) {
my $mbps = sprintf "%.2f", $conf->{memory}/$delay;
- logmsg('info', "migration speed: $mbps MB/s");
+ my $downtime = $stat->{downtime} || 0;
+ $self->log('info', "migration speed: $mbps MB/s - downtime $downtime ms");
}
}
- if ($ms eq 'failed' || $ms eq 'cancelled') {
+ if ($stat->{status} eq 'failed' || $stat->{status} eq 'cancelled') {
die "aborting\n"
}
- last if $ms ne 'active';
+ if ($stat->{status} ne 'active') {
+ $self->log('info', "migration status: $stat->{status}");
+ last;
+ }
+
+ if ($stat->{ram}->{transferred} ne $lstat) {
+ my $trans = $stat->{ram}->{transferred} || 0;
+ my $rem = $stat->{ram}->{remaining} || 0;
+ my $total = $stat->{ram}->{total} || 0;
+ my $xbzrlecachesize = $stat->{"xbzrle-cache"}->{"cache-size"} || 0;
+ my $xbzrlebytes = $stat->{"xbzrle-cache"}->{"bytes"} || 0;
+ my $xbzrlepages = $stat->{"xbzrle-cache"}->{"pages"} || 0;
+ my $xbzrlecachemiss = $stat->{"xbzrle-cache"}->{"cache-miss"} || 0;
+ my $xbzrleoverflow = $stat->{"xbzrle-cache"}->{"overflow"} || 0;
+ #reduce sleep if remainig memory if lower than the everage transfert
+ $usleep = 300000 if $avglstat && $rem < $avglstat;
+
+ $self->log('info', "migration status: $stat->{status} (transferred ${trans}, " .
+ "remaining ${rem}), total ${total})");
+
+ #$self->log('info', "migration xbzrle cachesize: ${xbzrlecachesize} transferred ${xbzrlebytes} pages ${xbzrlepages} cachemiss ${xbzrlecachemiss} overflow ${xbzrleoverflow}");
+ if (($lastrem && $rem > $lastrem ) || ($rem == 0)) {
+ $downtimecounter++;
+ }
+ $lastrem = $rem;
+
+ if ($downtimecounter > 5) {
+ $downtimecounter = 0;
+ $migrate_downtime *= 2;
+ $self->log('info', "migrate_set_downtime: $migrate_downtime");
+ eval {
+ PVE::QemuServer::vm_mon_cmd_nocheck($vmid, "migrate_set_downtime", value => int($migrate_downtime*100)/100);
+ };
+ $self->log('info', "migrate_set_downtime error: $@") if $@;
+ }
+
+ }
+
+
+ $lstat = $stat->{ram}->{transferred};
+
} else {
- die "unable to parse migration status '$stat' - aborting\n";
+ die $merr if $merr;
+ die "unable to parse migration status '$stat->{status}' - aborting\n";
}
- $lstat = $stat;
+ }
+}
+
+sub phase2_cleanup {
+ my ($self, $vmid, $err) = @_;
+
+ return if !$self->{errors};
+ $self->{phase2errors} = 1;
+
+ $self->log('info', "aborting phase 2 - cleanup resources");
+
+ $self->log('info', "migrate_cancel");
+ eval {
+ PVE::QemuServer::vm_mon_cmd_nocheck($vmid, "migrate_cancel");
};
+ $self->log('info', "migrate_cancel error: $@") if $@;
+
+ my $conf = $self->{vmconf};
+ delete $conf->{lock};
+ eval { PVE::QemuServer::update_config_nolock($vmid, $conf, 1) };
+ if (my $err = $@) {
+ $self->log('err', $err);
+ }
+
+ # cleanup ressources on target host
+ my $nodename = PVE::INotify::nodename();
+
+ my $cmd = [@{$self->{rem_ssh}}, 'qm', 'stop', $vmid, '--skiplock', '--migratedfrom', $nodename];
+ eval{ PVE::Tools::run_command($cmd, outfunc => sub {}, errfunc => sub {}) };
+ if (my $err = $@) {
+ $self->log('err', $err);
+ $self->{errors} = 1;
+ }
+}
+
+sub phase3 {
+ my ($self, $vmid) = @_;
+
+ my $volids = $self->{volumes};
+ return if $self->{phase2errors};
+
+ # destroy local copies
+ foreach my $volid (@$volids) {
+ eval { PVE::Storage::vdisk_free($self->{storecfg}, $volid); };
+ if (my $err = $@) {
+ $self->log('err', "removing local copy of '$volid' failed - $err");
+ $self->{errors} = 1;
+ last if $err =~ /^interrupted by signal$/;
+ }
+ }
}
+
+sub phase3_cleanup {
+ my ($self, $vmid, $err) = @_;
+
+ my $conf = $self->{vmconf};
+ return if $self->{phase2errors};
+
+ # move config to remote node
+ my $conffile = PVE::QemuServer::config_file($vmid);
+ my $newconffile = PVE::QemuServer::config_file($vmid, $self->{node});
+
+ die "Failed to move config to node '$self->{node}' - rename failed: $!\n"
+ if !rename($conffile, $newconffile);
+
+ if ($self->{livemigration}) {
+ # now that config file is move, we can resume vm on target if livemigrate
+ my $cmd = [@{$self->{rem_ssh}}, 'qm', 'resume', $vmid, '--skiplock'];
+ eval{ PVE::Tools::run_command($cmd, outfunc => sub {},
+ errfunc => sub {
+ my $line = shift;
+ $self->log('err', $line);
+ });
+ };
+ if (my $err = $@) {
+ $self->log('err', $err);
+ $self->{errors} = 1;
+ }
+ }
+
+ eval {
+
+ my $timer = 0;
+ if (PVE::QemuServer::vga_conf_has_spice($conf->{vga}) && $self->{running}) {
+ $self->log('info', "Waiting for spice server migration");
+ while (1) {
+ my $res = PVE::QemuServer::vm_mon_cmd_nocheck($vmid, 'query-spice');
+ last if int($res->{'migrated'}) == 1;
+ last if $timer > 50;
+ $timer ++;
+ usleep(200000);
+ }
+ }
+ };
+
+ # always stop local VM
+ eval { PVE::QemuServer::vm_stop($self->{storecfg}, $vmid, 1, 1); };
+ if (my $err = $@) {
+ $self->log('err', "stopping vm failed - $err");
+ $self->{errors} = 1;
+ }
+
+ if ($self->{tunnel}) {
+ eval { finish_tunnel($self, $self->{tunnel}); };
+ if (my $err = $@) {
+ $self->log('err', $err);
+ $self->{errors} = 1;
+ }
+ }
+
+ # always deactivate volumes - avoid lvm LVs to be active on several nodes
+ eval {
+ my $vollist = PVE::QemuServer::get_vm_volumes($conf);
+ PVE::Storage::deactivate_volumes($self->{storecfg}, $vollist);
+ };
+ if (my $err = $@) {
+ $self->log('err', $err);
+ $self->{errors} = 1;
+ }
+
+ # clear migrate lock
+ my $cmd = [ @{$self->{rem_ssh}}, 'qm', 'unlock', $vmid ];
+ $self->cmd_logerr($cmd, errmsg => "failed to clear migrate lock");
+}
+
+sub final_cleanup {
+ my ($self, $vmid) = @_;
+
+ # nothing to do
+}
+
+1;
projects / qemu-server.git / blobdiff