use strict;
use JSON;
+use PVE::INotify;
+use PVE::ProcFSTools;
use PVE::Tools;
+use PVE::CalendarEvent;
+use PVE::Cluster;
+use PVE::GuestHelpers;
use PVE::ReplicationConfig;
-
# Note: regression tests can overwrite $state_path for testing
our $state_path = "/var/lib/pve-manager/pve-replication-state.json";
our $state_lock = "/var/lib/pve-manager/pve-replication-state.lck";
+our $replicate_logdir = "/var/log/pve/replicate";
+
+# regression tests should overwrite this
+sub job_logfile_name {
+ my ($jobid) = @_;
+
+ return "${replicate_logdir}/$jobid";
+}
# Note: We use PVE::Tools::file_set_contents to write state file atomically,
# so read_state() always returns an consistent copy (even when not locked).
return $state;
}
+sub extract_vmid_tranfer_state {
+ my ($stateobj, $vmid, $old_target, $new_target) = @_;
+
+ my $oldid = PVE::ReplicationConfig::Cluster->get_unique_target_id({ target => $old_target });
+ my $newid = PVE::ReplicationConfig::Cluster->get_unique_target_id({ target => $new_target });
+
+ if (defined(my $vmstate = $stateobj->{$vmid})) {
+ $vmstate->{$newid} = delete($vmstate->{$oldid}) if defined($vmstate->{$oldid});
+ return $vmstate;
+ }
+
+ return {};
+}
+
sub read_job_state {
my ($jobcfg) = @_;
return extract_job_state($stateobj, $jobcfg);
}
+# update state for a single job
+# pass $state = undef to delete the job state completely
sub write_job_state {
my ($jobcfg, $state) = @_;
my $vmid = $jobcfg->{guest};
my $tid = $plugin->get_unique_target_id($jobcfg);
- my $code = sub {
+ my $update = sub {
my $stateobj = read_state();
# Note: tuple ($vmid, $tid) is unique
- $stateobj->{$vmid}->{$tid} = $state;
+ if (defined($state)) {
+ $stateobj->{$vmid}->{$tid} = $state;
+ } else {
+ delete $stateobj->{$vmid}->{$tid};
+ delete $stateobj->{$vmid} if !%{$stateobj->{$vmid}};
+ }
+ PVE::Tools::file_set_contents($state_path, encode_json($stateobj));
+ };
+
+ my $code = sub {
+ PVE::Tools::lock_file($state_lock, 10, $update);
+ die $@ if $@;
+ };
+
+ # make sure we have guest_migration_lock during update
+ PVE::GuestHelpers::guest_migration_lock($vmid, undef, $code);
+}
+# update all job states related to a specific $vmid
+sub write_vmid_job_states {
+ my ($vmid_state, $vmid) = @_;
+
+ my $update = sub {
+ my $stateobj = read_state();
+ $stateobj->{$vmid} = $vmid_state;
+ PVE::Tools::file_set_contents($state_path, encode_json($stateobj));
+ };
+
+ my $code = sub {
+ PVE::Tools::lock_file($state_lock, 10, $update);
+ die $@ if $@;
+ };
+
+ # make sure we have guest_migration_lock during update
+ PVE::GuestHelpers::guest_migration_lock($vmid, undef, $code);
+}
+
+sub record_job_start {
+ my ($jobcfg, $state, $start_time, $iteration) = @_;
+
+ $state->{pid} = $$;
+ $state->{ptime} = PVE::ProcFSTools::read_proc_starttime($state->{pid});
+ $state->{last_node} = PVE::INotify::nodename();
+ $state->{last_try} = $start_time;
+ $state->{last_iteration} = $iteration;
+ $state->{storeid_list} //= [];
+
+ write_job_state($jobcfg, $state);
+}
+
+sub delete_guest_states {
+ my ($vmid) = @_;
+
+ my $code = sub {
+ my $stateobj = read_state();
+ delete $stateobj->{$vmid};
PVE::Tools::file_set_contents($state_path, encode_json($stateobj));
};
PVE::Tools::lock_file($state_lock, 10, $code);
+}
+
+sub record_job_end {
+ my ($jobcfg, $state, $start_time, $duration, $err) = @_;
+
+ $state->{duration} = $duration;
+ delete $state->{pid};
+ delete $state->{ptime};
+
+ if ($err) {
+ chomp $err;
+ $state->{fail_count}++;
+ $state->{error} = "$err";
+ write_job_state($jobcfg, $state);
+ } else {
+ if ($jobcfg->{remove_job}) {
+ write_job_state($jobcfg, undef);
+ } else {
+ $state->{last_sync} = $start_time;
+ $state->{fail_count} = 0;
+ delete $state->{error};
+ write_job_state($jobcfg, $state);
+ }
+ }
+}
+
+sub replication_snapshot_name {
+ my ($jobid, $last_sync) = @_;
+
+ my $prefix = "__replicate_${jobid}_";
+ my $snapname = "${prefix}${last_sync}__";
+
+ wantarray ? ($prefix, $snapname) : $snapname;
+}
+
+sub purge_old_states {
+
+ my $local_node = PVE::INotify::nodename();
+
+ my $cfg = PVE::ReplicationConfig->new();
+ my $vms = PVE::Cluster::get_vmlist();
+
+ my $used_tids = {};
+
+ foreach my $jobid (sort keys %{$cfg->{ids}}) {
+ my $jobcfg = $cfg->{ids}->{$jobid};
+ my $plugin = PVE::ReplicationConfig->lookup($jobcfg->{type});
+ my $tid = $plugin->get_unique_target_id($jobcfg);
+ my $vmid = $jobcfg->{guest};
+ $used_tids->{$vmid}->{$tid} = 1
+ if defined($vms->{ids}->{$vmid}); # && $vms->{ids}->{$vmid}->{node} eq $local_node;
+ }
+
+ my $purge_state = sub {
+ my $stateobj = read_state();
+ my $next_stateobj = {};
+
+ foreach my $vmid (keys %$stateobj) {
+ foreach my $tid (keys %{$stateobj->{$vmid}}) {
+ $next_stateobj->{$vmid}->{$tid} = $stateobj->{$vmid}->{$tid} if $used_tids->{$vmid}->{$tid};
+ }
+ }
+ PVE::Tools::file_set_contents($state_path, encode_json($next_stateobj));
+ };
+
+ PVE::Tools::lock_file($state_lock, 10, $purge_state);
die $@ if $@;
}
+sub job_status {
+
+ my $local_node = PVE::INotify::nodename();
+
+ my $jobs = {};
+
+ my $stateobj = read_state();
+
+ my $cfg = PVE::ReplicationConfig->new();
+
+ my $vms = PVE::Cluster::get_vmlist();
+
+ foreach my $jobid (sort keys %{$cfg->{ids}}) {
+ my $jobcfg = $cfg->{ids}->{$jobid};
+ my $vmid = $jobcfg->{guest};
+
+ die "internal error - not implemented" if $jobcfg->{type} ne 'local';
+
+ # skip non existing vms
+ next if !$vms->{ids}->{$vmid};
+
+ # only consider guest on local node
+ next if $vms->{ids}->{$vmid}->{node} ne $local_node;
+
+ my $target = $jobcfg->{target};
+ if (!$jobcfg->{remove_job}) {
+ # never sync to local node
+ next if $target eq $local_node;
+
+ next if $jobcfg->{disable};
+ }
+
+ my $state = extract_job_state($stateobj, $jobcfg);
+ $jobcfg->{state} = $state;
+ $jobcfg->{id} = $jobid;
+ $jobcfg->{vmtype} = $vms->{ids}->{$vmid}->{type};
+
+ my $next_sync = 0;
+
+ if ($jobcfg->{remove_job}) {
+ $next_sync = 1; # lowest possible value
+ # todo: consider fail_count? How many retries?
+ } else {
+ if (my $fail_count = $state->{fail_count}) {
+ my $members = PVE::Cluster::get_members();
+ if (!$fail_count || ($members->{$target} && $members->{$target}->{online})) {
+ $next_sync = $state->{last_try} + 60*($fail_count < 3 ? 5*$fail_count : 30);
+ }
+ } else {
+ my $schedule = $jobcfg->{schedule} || '*/15';
+ my $calspec = PVE::CalendarEvent::parse_calendar_event($schedule);
+ $next_sync = PVE::CalendarEvent::compute_next_event($calspec, $state->{last_try}) // 0;
+ }
+ }
+
+ $jobcfg->{next_sync} = $next_sync;
+
+ $jobs->{$jobid} = $jobcfg;
+ }
+
+ return $jobs;
+}
+
+sub get_next_job {
+ my ($iteration, $start_time) = @_;
+
+ my $jobs = job_status();
+
+ my $sort_func = sub {
+ my $joba = $jobs->{$a};
+ my $jobb = $jobs->{$b};
+ my $sa = $joba->{state};
+ my $sb = $jobb->{state};
+ my $res = $sa->{last_iteration} <=> $sb->{last_iteration};
+ return $res if $res != 0;
+ $res = $joba->{next_sync} <=> $jobb->{next_sync};
+ return $res if $res != 0;
+ return $joba->{guest} <=> $jobb->{guest};
+ };
+
+ foreach my $jobid (sort $sort_func keys %$jobs) {
+ my $jobcfg = $jobs->{$jobid};
+ next if $jobcfg->{state}->{last_iteration} >= $iteration;
+ if ($jobcfg->{next_sync} && ($start_time >= $jobcfg->{next_sync})) {
+ return $jobcfg;
+ }
+ }
+
+ return undef;
+}
+
+sub schedule_job_now {
+ my ($jobcfg) = @_;
+ PVE::GuestHelpers::guest_migration_lock($jobcfg->{guest}, undef, sub {
+ PVE::Tools::lock_file($state_lock, 10, sub {
+ my $stateobj = read_state();
+ my $vmid = $jobcfg->{guest};
+ my $tid = $plugin->get_unique_target_id($jobcfg);
+ # no not modify anything if there is no state
+ return if !defined($stateobj->{$vmid}->{$tid});
+
+ my $state = read_job_state($jobcfg);
+ $state->{last_try} = 0;
+ write_job_state($jobcfg, $state);
+ });
+ die $@ if $@;
+ });
+}
+
1;
projects / pve-guest-common.git / blobdiff