mirror of
https://git.proxmox.com/git/pve-manager
synced 2025-07-23 13:13:52 +00:00
7060a39316
so the frontend has the information readily available. Suggested-by: Thomas Lamprecht <t.lamprecht@proxmox.com> Signed-off-by: Fiona Ebner <f.ebner@proxmox.com>
684 lines
18 KiB
Perl
Executable File
684 lines
18 KiB
Perl
Executable File
package PVE::Service::pvestatd;
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use strict;
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use warnings;
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use PVE::SafeSyslog;
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use PVE::Daemon;
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use JSON;
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use Time::HiRes qw (gettimeofday);
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use PVE::Tools qw(dir_glob_foreach file_read_firstline);
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use PVE::ProcFSTools;
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use PVE::CpuSet;
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use Filesys::Df;
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use PVE::INotify;
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use PVE::Network;
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use PVE::Cluster qw(cfs_read_file);
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use PVE::Storage;
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use PVE::QemuServer;
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use PVE::QemuServer::Monitor;
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use PVE::LXC;
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use PVE::CGroup;
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use PVE::LXC::Config;
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use PVE::RPCEnvironment;
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use PVE::API2::Subscription;
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use PVE::AutoBalloon;
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use PVE::AccessControl;
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use PVE::Ceph::Services;
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use PVE::Ceph::Tools;
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use PVE::pvecfg;
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use PVE::ExtMetric;
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use PVE::Status::Plugin;
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use base qw(PVE::Daemon);
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my $have_sdn;
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eval {
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require PVE::Network::SDN;
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$have_sdn = 1;
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};
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my $opt_debug;
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my $restart_request;
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my $nodename = PVE::INotify::nodename();
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my $cmdline = [$0, @ARGV];
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my %daemon_options = (restart_on_error => 5, stop_wait_time => 5);
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my $daemon = __PACKAGE__->new('pvestatd', $cmdline, %daemon_options);
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sub init {
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my ($self) = @_;
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$opt_debug = $self->{debug};
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PVE::Cluster::cfs_update();
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}
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sub shutdown {
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my ($self) = @_;
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syslog('info' , "server closing");
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# wait for children
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1 while (waitpid(-1, POSIX::WNOHANG()) > 0);
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$self->exit_daemon(0);
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}
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sub hup {
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my ($self) = @_;
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$restart_request = 1;
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}
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my $cached_kvm_version = '';
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my $next_flag_update_time;
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my $failed_flag_update_delay_sec = 120;
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sub update_supported_cpuflags {
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my $kvm_version = PVE::QemuServer::kvm_user_version();
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# only update when QEMU/KVM version has changed, as that is the only reason
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# why flags could change without restarting pvestatd
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return if $cached_kvm_version && $cached_kvm_version eq $kvm_version;
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if ($next_flag_update_time && $next_flag_update_time > time()) {
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return;
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}
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$next_flag_update_time = 0;
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my $supported_cpuflags = eval { PVE::QemuServer::query_supported_cpu_flags() };
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warn $@ if $@;
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if (!$supported_cpuflags ||
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(!$supported_cpuflags->{tcg} && !$supported_cpuflags->{kvm})) {
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# something went wrong, clear broadcast flags and set try-again delay
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warn "CPU flag detection failed, will try again after delay\n";
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$next_flag_update_time = time() + $failed_flag_update_delay_sec;
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$supported_cpuflags = {};
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} else {
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# only set cached version if there's actually something to braodcast
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$cached_kvm_version = $kvm_version;
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}
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for my $accel ("tcg", "kvm") {
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if ($supported_cpuflags->{$accel}) {
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PVE::Cluster::broadcast_node_kv("cpuflags-$accel", join(' ', @{$supported_cpuflags->{$accel}}));
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} else {
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# clear potentially invalid data
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PVE::Cluster::broadcast_node_kv("cpuflags-$accel", '');
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}
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}
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}
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my $generate_rrd_string = sub {
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my ($data) = @_;
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return join(':', map { $_ // 'U' } @$data);
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};
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my sub broadcast_static_node_info {
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my ($cpus, $memory) = @_;
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my $cgroup_mode = eval { PVE::CGroup::cgroup_mode(); };
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syslog('err', "cgroup mode error: $@") if $@;
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my $old = PVE::Cluster::get_node_kv('static-info', $nodename);
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$old = eval { decode_json($old->{$nodename}) } if defined($old->{$nodename});
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if (
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!defined($old->{cpus}) || $old->{cpus} != $cpus
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|| !defined($old->{memory}) || $old->{memory} != $memory
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|| ($old->{'cgroup-mode'} // -1) != ($cgroup_mode // -1)
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) {
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my $info = {
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cpus => $cpus,
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memory => $memory,
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};
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$info->{'cgroup-mode'} = $cgroup_mode if defined($cgroup_mode);
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PVE::Cluster::broadcast_node_kv('static-info', encode_json($info));
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}
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}
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sub update_node_status {
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my ($status_cfg) = @_;
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my ($uptime) = PVE::ProcFSTools::read_proc_uptime();
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my ($avg1, $avg5, $avg15) = PVE::ProcFSTools::read_loadavg();
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my $stat = PVE::ProcFSTools::read_proc_stat();
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my $cpuinfo = PVE::ProcFSTools::read_cpuinfo();
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my $maxcpu = $cpuinfo->{cpus};
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update_supported_cpuflags();
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my $subinfo = PVE::API2::Subscription::read_etc_subscription();
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my $sublevel = $subinfo->{level} || '';
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my $netdev = PVE::ProcFSTools::read_proc_net_dev();
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# traffic from/to physical interface cards
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my ($netin, $netout) = (0, 0);
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for my $dev (grep { /^$PVE::Network::PHYSICAL_NIC_RE$/ } keys %$netdev) {
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$netin += $netdev->{$dev}->{receive};
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$netout += $netdev->{$dev}->{transmit};
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}
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my $meminfo = PVE::ProcFSTools::read_meminfo();
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my $dinfo = df('/', 1); # output is bytes
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# everything not free is considered to be used
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my $dused = $dinfo->{blocks} - $dinfo->{bfree};
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my $ctime = time();
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my $data = $generate_rrd_string->(
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[$uptime, $sublevel, $ctime, $avg1, $maxcpu, $stat->{cpu}, $stat->{wait},
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$meminfo->{memtotal}, $meminfo->{memused},
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$meminfo->{swaptotal}, $meminfo->{swapused},
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$dinfo->{blocks}, $dused, $netin, $netout]
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);
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PVE::Cluster::broadcast_rrd("pve2-node/$nodename", $data);
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my $node_metric = {
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uptime => $uptime,
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cpustat => $stat,
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memory => $meminfo,
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blockstat => $dinfo,
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nics => $netdev,
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};
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$node_metric->{cpustat}->@{qw(avg1 avg5 avg15)} = ($avg1, $avg5, $avg15);
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$node_metric->{cpustat}->{cpus} = $maxcpu;
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my $transactions = PVE::ExtMetric::transactions_start($status_cfg);
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PVE::ExtMetric::update_all($transactions, 'node', $nodename, $node_metric, $ctime);
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PVE::ExtMetric::transactions_finish($transactions);
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broadcast_static_node_info($maxcpu, $meminfo->{memtotal});
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}
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sub auto_balloning {
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my ($vmstatus) = @_;
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my $log = sub { $opt_debug and printf @_ };
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my $hostmeminfo = PVE::ProcFSTools::read_meminfo();
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# NOTE: to debug, run 'pvestatd -d' and set memtotal here
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#$hostmeminfo->{memtotal} = int(2*1024*1024*1024/0.8); # you can set this to test
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my $hostfreemem = $hostmeminfo->{memtotal} - $hostmeminfo->{memused};
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# try to use ~80% host memory; goal is the change amount required to achieve that
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my $goal = int($hostmeminfo->{memtotal} * 0.8 - $hostmeminfo->{memused});
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$log->("host goal: $goal free: $hostfreemem total: $hostmeminfo->{memtotal}\n");
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my $maxchange = 100*1024*1024;
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my $res = PVE::AutoBalloon::compute_alg1($vmstatus, $goal, $maxchange);
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for my $vmid (sort keys %$res) {
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my $target = int($res->{$vmid});
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my $current = int($vmstatus->{$vmid}->{balloon});
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next if $target == $current; # no need to change
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$log->("BALLOON $vmid to $target (%d)\n", $target - $current);
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eval { PVE::QemuServer::Monitor::mon_cmd($vmid, "balloon", value => int($target)) };
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warn $@ if $@;
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}
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}
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sub update_qemu_status {
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my ($status_cfg) = @_;
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my $ctime = time();
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my $vmstatus = PVE::QemuServer::vmstatus(undef, 1);
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eval { auto_balloning($vmstatus); };
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syslog('err', "auto ballooning error: $@") if $@;
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my $transactions = PVE::ExtMetric::transactions_start($status_cfg);
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foreach my $vmid (keys %$vmstatus) {
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my $d = $vmstatus->{$vmid};
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my $data;
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my $status = $d->{qmpstatus} || $d->{status} || 'stopped';
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my $template = $d->{template} ? $d->{template} : "0";
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if ($d->{pid}) { # running
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$data = $generate_rrd_string->(
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[$d->{uptime}, $d->{name}, $status, $template, $ctime, $d->{cpus}, $d->{cpu},
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$d->{maxmem}, $d->{mem}, $d->{maxdisk}, $d->{disk},
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$d->{netin}, $d->{netout}, $d->{diskread}, $d->{diskwrite}]);
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} else {
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$data = $generate_rrd_string->(
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[0, $d->{name}, $status, $template, $ctime, $d->{cpus}, undef,
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$d->{maxmem}, undef, $d->{maxdisk}, $d->{disk}, undef, undef, undef, undef]);
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}
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PVE::Cluster::broadcast_rrd("pve2.3-vm/$vmid", $data);
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PVE::ExtMetric::update_all($transactions, 'qemu', $vmid, $d, $ctime, $nodename);
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}
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PVE::ExtMetric::transactions_finish($transactions);
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}
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sub remove_stale_lxc_consoles {
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my $vmstatus = PVE::LXC::vmstatus();
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my $pidhash = PVE::LXC::find_lxc_console_pids();
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foreach my $vmid (keys %$pidhash) {
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next if defined($vmstatus->{$vmid});
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syslog('info', "remove stale lxc-console for CT $vmid");
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foreach my $pid (@{$pidhash->{$vmid}}) {
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kill(9, $pid);
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}
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}
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}
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my $rebalance_error_count = {};
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my $NO_REBALANCE;
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sub rebalance_lxc_containers {
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# Make sure we can find the cpuset controller path:
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return if $NO_REBALANCE;
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my $cpuset_base = eval { PVE::CGroup::cpuset_controller_path() };
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if (my $err = $@) {
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syslog('info', "could not get cpuset controller path: $err");
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}
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if (!defined($cpuset_base)) {
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$NO_REBALANCE = 1;
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return;
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}
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# Figure out the cpu count & highest ID
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my $all_cpus = PVE::CpuSet->new_from_path($cpuset_base, 1);
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my @allowed_cpus = $all_cpus->members();
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my $cpucount = scalar(@allowed_cpus);
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my $max_cpuid = $allowed_cpus[-1];
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my @cpu_ctcount = (0) x ($max_cpuid+1);
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my @balanced_cts;
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# A mapping { vmid => cgroup_payload_path } for containers where namespace
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# separation is active and recognized.
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my $ctinfo = {};
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my $modify_cpuset = sub {
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my ($vmid, $cpuset, $newset) = @_;
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if (!$rebalance_error_count->{$vmid}) {
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syslog('info', "modified cpu set for lxc/$vmid: " . $newset->short_string());
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}
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eval {
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my $cgbase = $ctinfo->{$vmid};
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if (defined($cgbase)) {
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# allow all, so that we can set new cpuset in /ns
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$all_cpus->write_to_path($cgbase);
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eval {
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$newset->write_to_path("$cgbase/ns");
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};
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if (my $err = $@) {
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warn $err if !$rebalance_error_count->{$vmid}++;
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# restore original
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$cpuset->write_to_path($cgbase);
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} else {
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# also apply to container root cgroup
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$newset->write_to_path($cgbase);
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$rebalance_error_count->{$vmid} = 0;
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}
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} else {
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# old style container
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$newset->write_to_path($cgbase);
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$rebalance_error_count->{$vmid} = 0;
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}
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};
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if (my $err = $@) {
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warn $err if !$rebalance_error_count->{$vmid}++;
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}
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};
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my $ctlist = PVE::LXC::config_list();
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foreach my $vmid (sort keys %$ctlist) {
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my $cgpath = "$cpuset_base/lxc/$vmid";
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if (-d "$cgpath/ns") {
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$ctinfo->{$vmid} = $cgpath;
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} else {
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next; # old style container
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}
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my ($conf, $cpuset) = eval {(
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PVE::LXC::Config->load_config($vmid),
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PVE::CpuSet->new_from_path($cgpath),
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)};
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if (my $err = $@) {
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warn $err;
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next;
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}
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my @cpuset_members = $cpuset->members();
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if (!PVE::LXC::Config->has_lxc_entry($conf, 'lxc.cgroup.cpuset.cpus')
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&& !PVE::LXC::Config->has_lxc_entry($conf, 'lxc.cgroup2.cpuset.cpus')
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) {
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my $cores = $conf->{cores} || $cpucount;
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$cores = $cpucount if $cores > $cpucount;
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# see if the number of cores was hot-reduced or hasn't been enacted at all yet
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my $newset = PVE::CpuSet->new();
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if ($cores < scalar(@cpuset_members)) {
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for (my $i = 0; $i < $cores; $i++) {
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$newset->insert($cpuset_members[$i]);
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}
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} elsif ($cores > scalar(@cpuset_members)) {
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my $count = $newset->insert(@cpuset_members);
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foreach my $cpu (@allowed_cpus) {
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$count += $newset->insert($cpu);
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last if $count >= $cores;
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}
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} else {
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$newset->insert(@cpuset_members);
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}
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# Apply hot-plugged changes if any:
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if (!$newset->is_equal($cpuset)) {
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@cpuset_members = $newset->members();
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$modify_cpuset->($vmid, $cpuset, $newset);
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}
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# Note: no need to rebalance if we already use all cores
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push @balanced_cts, [$vmid, $cores, $newset]
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if defined($conf->{cores}) && ($cores != $cpucount);
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}
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foreach my $cpu (@cpuset_members) {
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$cpu_ctcount[$cpu]++ if $cpu <= $max_cpuid;
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}
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}
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my $find_best_cpu = sub {
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my ($cpulist, $cpu) = @_;
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my $cur_cost = $cpu_ctcount[$cpu];
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my $cur_cpu = $cpu;
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foreach my $candidate (@$cpulist) {
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my $cost = $cpu_ctcount[$candidate];
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if ($cost < ($cur_cost - 1)) {
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$cur_cost = $cost;
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$cur_cpu = $candidate;
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}
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}
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return $cur_cpu;
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};
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foreach my $bct (@balanced_cts) {
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my ($vmid, $cores, $cpuset) = @$bct;
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my $rest = [ grep { !$cpuset->has($_) } @allowed_cpus ];
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my $newset = PVE::CpuSet->new();
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for my $cpu ($cpuset->members()) {
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my $best = $find_best_cpu->($rest, $cpu);
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if ($best != $cpu) {
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$cpu_ctcount[$best]++;
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$cpu_ctcount[$cpu]--;
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}
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$newset->insert($best);
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}
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if (!$newset->is_equal($cpuset)) {
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$modify_cpuset->($vmid, $cpuset, $newset);
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}
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}
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}
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sub update_lxc_status {
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my ($status_cfg) = @_;
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my $ctime = time();
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my $vmstatus = PVE::LXC::vmstatus();
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my $transactions = PVE::ExtMetric::transactions_start($status_cfg);
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foreach my $vmid (keys %$vmstatus) {
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my $d = $vmstatus->{$vmid};
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my $template = $d->{template} ? $d->{template} : "0";
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my $data;
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if ($d->{status} eq 'running') { # running
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$data = $generate_rrd_string->(
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[$d->{uptime}, $d->{name}, $d->{status}, $template,
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$ctime, $d->{cpus}, $d->{cpu},
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$d->{maxmem}, $d->{mem},
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$d->{maxdisk}, $d->{disk},
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$d->{netin}, $d->{netout},
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$d->{diskread}, $d->{diskwrite}]);
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} else {
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$data = $generate_rrd_string->(
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[0, $d->{name}, $d->{status}, $template, $ctime, $d->{cpus}, undef,
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$d->{maxmem}, undef, $d->{maxdisk}, $d->{disk}, undef, undef, undef, undef]);
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}
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PVE::Cluster::broadcast_rrd("pve2.3-vm/$vmid", $data);
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PVE::ExtMetric::update_all($transactions, 'lxc', $vmid, $d, $ctime, $nodename);
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}
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PVE::ExtMetric::transactions_finish($transactions);
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}
|
|
|
|
sub update_storage_status {
|
|
my ($status_cfg) = @_;
|
|
|
|
my $cfg = PVE::Storage::config();
|
|
my $ctime = time();
|
|
my $info = PVE::Storage::storage_info($cfg);
|
|
|
|
my $transactions = PVE::ExtMetric::transactions_start($status_cfg);
|
|
|
|
foreach my $storeid (keys %$info) {
|
|
my $d = $info->{$storeid};
|
|
next if !$d->{active};
|
|
|
|
my $data = $generate_rrd_string->([$ctime, $d->{total}, $d->{used}]);
|
|
|
|
my $key = "pve2-storage/${nodename}/$storeid";
|
|
PVE::Cluster::broadcast_rrd($key, $data);
|
|
|
|
PVE::ExtMetric::update_all($transactions, 'storage', $nodename, $storeid, $d, $ctime);
|
|
}
|
|
PVE::ExtMetric::transactions_finish($transactions);
|
|
}
|
|
|
|
sub rotate_authkeys {
|
|
PVE::AccessControl::rotate_authkey() if !PVE::AccessControl::check_authkey(1);
|
|
}
|
|
|
|
sub update_ceph_metadata {
|
|
return if !PVE::Ceph::Tools::check_ceph_inited(1); # nothing to do
|
|
|
|
PVE::Ceph::Services::broadcast_ceph_services();
|
|
|
|
PVE::Ceph::Services::broadcast_ceph_versions();
|
|
}
|
|
|
|
sub update_sdn_status {
|
|
|
|
if($have_sdn) {
|
|
my ($transport_status, $vnet_status) = PVE::Network::SDN::status();
|
|
|
|
my $status = $transport_status ? encode_json($transport_status) : undef;
|
|
PVE::Cluster::broadcast_node_kv("sdn", $status);
|
|
}
|
|
}
|
|
|
|
my $broadcast_version_info_done = 0;
|
|
my sub broadcast_version_info : prototype() {
|
|
if (!$broadcast_version_info_done) {
|
|
PVE::Cluster::broadcast_node_kv(
|
|
'version-info',
|
|
encode_json(PVE::pvecfg::version_info()),
|
|
);
|
|
$broadcast_version_info_done = 1;
|
|
}
|
|
}
|
|
|
|
sub update_status {
|
|
# update worker list. This is not really required, but we want to make sure that we also have a
|
|
# correct list in case of an unexpected crash.
|
|
my $rpcenv = PVE::RPCEnvironment::get();
|
|
|
|
eval {
|
|
my $tlist = $rpcenv->active_workers();
|
|
PVE::Cluster::broadcast_tasklist($tlist);
|
|
};
|
|
my $err = $@;
|
|
syslog('err', $err) if $err;
|
|
|
|
my $status_cfg = PVE::Cluster::cfs_read_file('status.cfg');
|
|
|
|
eval {
|
|
update_node_status($status_cfg);
|
|
};
|
|
$err = $@;
|
|
syslog('err', "node status update error: $err") if $err;
|
|
|
|
eval {
|
|
update_qemu_status($status_cfg);
|
|
};
|
|
$err = $@;
|
|
syslog('err', "qemu status update error: $err") if $err;
|
|
|
|
eval {
|
|
update_lxc_status($status_cfg);
|
|
};
|
|
$err = $@;
|
|
syslog('err', "lxc status update error: $err") if $err;
|
|
|
|
eval {
|
|
rebalance_lxc_containers();
|
|
};
|
|
$err = $@;
|
|
syslog('err', "lxc cpuset rebalance error: $err") if $err;
|
|
|
|
eval {
|
|
update_storage_status($status_cfg);
|
|
};
|
|
$err = $@;
|
|
syslog('err', "storage status update error: $err") if $err;
|
|
|
|
eval {
|
|
remove_stale_lxc_consoles();
|
|
};
|
|
$err = $@;
|
|
syslog('err', "lxc console cleanup error: $err") if $err;
|
|
|
|
eval {
|
|
rotate_authkeys();
|
|
};
|
|
$err = $@;
|
|
syslog('err', "authkey rotation error: $err") if $err;
|
|
|
|
eval {
|
|
update_ceph_metadata();
|
|
};
|
|
$err = $@;
|
|
syslog('err', "ceph metadata update error: $err") if $err;
|
|
|
|
eval {
|
|
update_sdn_status();
|
|
};
|
|
$err = $@;
|
|
syslog('err', "sdn status update error: $err") if $err;
|
|
|
|
eval {
|
|
broadcast_version_info();
|
|
};
|
|
$err = $@;
|
|
syslog('err', "version info update error: $err") if $err;
|
|
}
|
|
|
|
my $next_update = 0;
|
|
|
|
# do not update directly after startup, because install scripts
|
|
# have a problem with that
|
|
my $cycle = 0;
|
|
my $updatetime = 10;
|
|
|
|
my $initial_memory_usage;
|
|
|
|
sub run {
|
|
my ($self) = @_;
|
|
|
|
for (;;) { # forever
|
|
|
|
$next_update = time() + $updatetime;
|
|
|
|
if ($cycle) {
|
|
my ($ccsec, $cusec) = gettimeofday ();
|
|
eval {
|
|
# syslog('info', "start status update");
|
|
PVE::Cluster::cfs_update();
|
|
update_status();
|
|
};
|
|
my $err = $@;
|
|
|
|
if ($err) {
|
|
syslog('err', "status update error: $err");
|
|
}
|
|
|
|
my ($ccsec_end, $cusec_end) = gettimeofday ();
|
|
my $cptime = ($ccsec_end-$ccsec) + ($cusec_end - $cusec)/1000000;
|
|
|
|
syslog('info', sprintf("status update time (%.3f seconds)", $cptime))
|
|
if ($cptime > 5);
|
|
}
|
|
|
|
$cycle++;
|
|
|
|
my $mem = PVE::ProcFSTools::read_memory_usage();
|
|
my $resident_kb = $mem->{resident} / 1024;
|
|
|
|
if (!defined($initial_memory_usage) || ($cycle < 10)) {
|
|
$initial_memory_usage = $resident_kb;
|
|
} else {
|
|
my $diff = $resident_kb - $initial_memory_usage;
|
|
if ($diff > 15 * 1024) {
|
|
syslog ('info', "restarting server after $cycle cycles to " .
|
|
"reduce memory usage (free $resident_kb ($diff) KB)");
|
|
$self->restart_daemon();
|
|
}
|
|
}
|
|
|
|
my $wcount = 0;
|
|
while ((time() < $next_update) &&
|
|
($wcount < $updatetime) && # protect against time wrap
|
|
!$restart_request) { $wcount++; sleep (1); };
|
|
|
|
$self->restart_daemon() if $restart_request;
|
|
}
|
|
}
|
|
|
|
$daemon->register_start_command();
|
|
$daemon->register_restart_command(1);
|
|
$daemon->register_stop_command();
|
|
$daemon->register_status_command();
|
|
|
|
our $cmddef = {
|
|
start => [ __PACKAGE__, 'start', []],
|
|
restart => [ __PACKAGE__, 'restart', []],
|
|
stop => [ __PACKAGE__, 'stop', []],
|
|
status => [ __PACKAGE__, 'status', [], undef, sub { print shift . "\n";} ],
|
|
};
|
|
|
|
1;
|
|
|
|
|
|
|
|
|
|
|