add missing file
This commit is contained in:
Dietmar Maurer
parent
b86b0d29d5
commit
0d5b920ac8
426
PVE/Service/pvestatd.pm
Executable file
426
PVE/Service/pvestatd.pm
Executable file
@ -0,0 +1,426 @@
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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 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 Filesys::Df;
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use PVE::INotify;
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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::LXC;
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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::Status::Plugin;
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use PVE::Status::Graphite;
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PVE::Status::Graphite->register();
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PVE::Status::Plugin->init();
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use base qw(PVE::Daemon);
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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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$restart_request = 1;
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}
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sub update_node_status {
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my ($status_cfg) = @_;
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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 $netdev = PVE::ProcFSTools::read_proc_net_dev();
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my ($uptime) = PVE::ProcFSTools::read_proc_uptime();
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my $cpuinfo = PVE::ProcFSTools::read_cpuinfo();
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my $maxcpu = $cpuinfo->{cpus};
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my $subinfo = PVE::INotify::read_file('subscription');
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my $sublevel = $subinfo->{level} || '';
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# traffic from/to physical interface cards
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my $netin = 0;
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my $netout = 0;
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foreach my $dev (keys %$netdev) {
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next if $dev !~ m/^eth\d+$/;
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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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my $ctime = time();
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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 $data = "$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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PVE::Cluster::broadcast_rrd("pve2-node/$nodename", $data);
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foreach my $id (keys %{$status_cfg->{ids}}) {
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my $plugin_config = $status_cfg->{ids}->{$id};
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next if $plugin_config->{disable};
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my $plugin = PVE::Status::Plugin->lookup($plugin_config->{type});
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my $d = {};
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$d->{uptime} = $uptime;
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$d->{cpustat} = $stat;
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$d->{cpustat}->{avg1} = $avg1;
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$d->{cpustat}->{avg5} = $avg5;
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$d->{cpustat}->{avg15} = $avg15;
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$d->{cpustat}->{cpus} = $maxcpu;
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$d->{memory} = $meminfo;
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$d->{blockstat} = $dinfo;
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$d->{nics} = $netdev;
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$plugin->update_node_status($plugin_config, $nodename, $d, $ctime);
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}
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}
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sub auto_balloning {
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my ($vmstatus) = @_;
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my $log = sub {
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return if !$opt_debug;
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print @_;
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};
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my $hostmeminfo = PVE::ProcFSTools::read_meminfo();
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# to debug, run 'pvestatd -d' and set memtotal here
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#$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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# we try to use about 80% host memory
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# goal: we want to change memory usage by this amount (positive or negative)
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my $goal = int($hostmeminfo->{memtotal}*0.8 - $hostmeminfo->{memused});
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my $maxchange = 100*1024*1024;
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my $res = PVE::AutoBalloon::compute_alg1($vmstatus, $goal, $maxchange);
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&$log("host goal: $goal free: $hostfreemem total: $hostmeminfo->{memtotal}\n");
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foreach my $vmid (keys %$vmstatus) {
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next if !$res->{$vmid};
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my $d = $vmstatus->{$vmid};
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my $diff = int($res->{$vmid} - $d->{balloon});
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my $absdiff = $diff < 0 ? -$diff : $diff;
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if ($absdiff > 0) {
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&$log("BALLOON $vmid to $res->{$vmid} ($diff)\n");
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eval {
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PVE::QemuServer::vm_mon_cmd($vmid, "balloon",
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value => int($res->{$vmid}));
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};
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warn $@ if $@;
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}
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}
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}
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sub update_qemu_status {
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my ($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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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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$data = "$d->{uptime}:$d->{name}:$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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$data = "0:$d->{name}:$status:$template:$ctime:$d->{cpus}::" .
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"$d->{maxmem}::" .
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"$d->{maxdisk}:$d->{disk}:" .
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":::";
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}
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PVE::Cluster::broadcast_rrd("pve2.3-vm/$vmid", $data);
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foreach my $id (keys %{$status_cfg->{ids}}) {
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my $plugin_config = $status_cfg->{ids}->{$id};
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next if $plugin_config->{disable};
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my $plugin = PVE::Status::Plugin->lookup($plugin_config->{type});
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$plugin->update_qemu_status($plugin_config, $vmid, $d, $ctime);
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}
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}
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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, $pid);
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}
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}
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}
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sub update_lxc_status {
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my ($status_cfg) = @_;
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my $ctime = time();
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my $vmstatus = PVE::LXC::vmstatus();
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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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$data = "$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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$data = "0:$d->{name}:$d->{status}:$template:$ctime:$d->{cpus}::" .
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"$d->{maxmem}::" .
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"$d->{maxdisk}:$d->{disk}:" .
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":::";
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}
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PVE::Cluster::broadcast_rrd("pve2.3-vm/$vmid", $data);
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foreach my $id (keys %{$status_cfg->{ids}}) {
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my $plugin_config = $status_cfg->{ids}->{$id};
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next if $plugin_config->{disable};
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my $plugin = PVE::Status::Plugin->lookup($plugin_config->{type});
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$plugin->update_lxc_status($plugin_config, $vmid, $d, $ctime);
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}
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}
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}
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sub update_storage_status {
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my ($status_cfg) = @_;
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my $cfg = cfs_read_file("storage.cfg");
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my $ctime = time();
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my $info = PVE::Storage::storage_info($cfg);
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foreach my $storeid (keys %$info) {
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my $d = $info->{$storeid};
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next if !$d->{active};
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my $data = "$ctime:$d->{total}:$d->{used}";
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my $key = "pve2-storage/${nodename}/$storeid";
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PVE::Cluster::broadcast_rrd($key, $data);
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foreach my $id (keys %{$status_cfg->{ids}}) {
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my $plugin_config = $status_cfg->{ids}->{$id};
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next if $plugin_config->{disable};
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my $plugin = PVE::Status::Plugin->lookup($plugin_config->{type});
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$plugin->update_storage_status($plugin_config, $nodename, $storeid, $d, $ctime);
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}
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}
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}
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sub update_status {
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# update worker list. This is not really required and
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# we just call this to make sure that we have a correct
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# list in case of an unexpected crash.
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eval {
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my $tlist = PVE::RPCEnvironment::active_workers();
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PVE::Cluster::broadcast_tasklist($tlist);
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};
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my $err = $@;
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syslog('err', $err) if $err;
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my $status_cfg = PVE::Cluster::cfs_read_file('status.cfg');
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eval {
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update_node_status($status_cfg);
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};
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$err = $@;
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syslog('err', "node status update error: $err") if $err;
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eval {
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update_qemu_status($status_cfg);
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};
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$err = $@;
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syslog('err', "qemu status update error: $err") if $err;
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eval {
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update_lxc_status($status_cfg);
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};
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$err = $@;
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syslog('err', "lxc status update error: $err") if $err;
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eval {
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update_storage_status($status_cfg);
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};
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$err = $@;
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syslog('err', "storage status update error: $err") if $err;
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eval {
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remove_stale_lxc_consoles();
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};
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$err = $@;
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syslog('err', "lxc console cleanup error: $err") if $err;
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}
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my $next_update = 0;
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# do not update directly after startup, because install scripts
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# have a problem with that
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my $cycle = 0;
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my $updatetime = 10;
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my $initial_memory_usage;
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sub run {
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my ($self) = @_;
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for (;;) { # forever
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$next_update = time() + $updatetime;
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if ($cycle) {
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my ($ccsec, $cusec) = gettimeofday ();
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eval {
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# syslog('info', "start status update");
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PVE::Cluster::cfs_update();
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update_status();
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};
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my $err = $@;
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if ($err) {
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syslog('err', "status update error: $err");
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}
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my ($ccsec_end, $cusec_end) = gettimeofday ();
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my $cptime = ($ccsec_end-$ccsec) + ($cusec_end - $cusec)/1000000;
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syslog('info', sprintf("status update time (%.3f seconds)", $cptime))
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if ($cptime > 5);
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}
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$cycle++;
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my $mem = PVE::ProcFSTools::read_memory_usage();
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if (!defined($initial_memory_usage) || ($cycle < 10)) {
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$initial_memory_usage = $mem->{resident};
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} else {
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my $diff = $mem->{resident} - $initial_memory_usage;
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if ($diff > 5*1024*1024) {
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syslog ('info', "restarting server after $cycle cycles to " .
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"reduce memory usage (free $mem->{resident} ($diff) bytes)");
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$self->restart_daemon();
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}
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}
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my $wcount = 0;
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while ((time() < $next_update) &&
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($wcount < $updatetime) && # protect against time wrap
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!$restart_request) { $wcount++; sleep (1); };
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$self->restart_daemon() if $restart_request;
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}
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}
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$daemon->register_start_command();
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$daemon->register_restart_command(1);
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$daemon->register_stop_command();
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$daemon->register_status_command();
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our $cmddef = {
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start => [ __PACKAGE__, 'start', []],
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restart => [ __PACKAGE__, 'restart', []],
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stop => [ __PACKAGE__, 'stop', []],
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status => [ __PACKAGE__, 'status', [], undef, sub { print shift . "\n";} ],
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};
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#my $cmd = shift;
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#PVE::CLIHandler::handle_cmd($cmddef, $0, $cmd, \@ARGV, undef, $0);
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#exit (0);
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1;
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__END__
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=head1 NAME
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pvestatd - PVE Status Daemon
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=head1 SYNOPSIS
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=include synopsis
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=head1 DESCRIPTION
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This daemom queries the status of VMs, storages and containers at
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regular intervals. The result is sent to all nodes in the cluster.
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=include pve_copyright
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