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This commit is contained in:
Meliox
parent
7b78e2a3ae
commit
ea76402433
497
GPUcollecter.pm
497
GPUcollecter.pm
@ -8,18 +8,18 @@ use Fcntl qw(:flock);
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use Time::HiRes qw(time);
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use Fcntl qw(:flock O_CREAT O_EXCL O_WRONLY);
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# Debug configuration - set to 0 to disable all debug output
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my $DEBUG_ENABLED = 1;
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# debug configuration - set to 0 to disable all _debug output
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my $debug_ENABLED = 1;
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# Debug function showing line number and call chain
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# Usage: debug(__LINE__, "message")
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sub debug {
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return unless $DEBUG_ENABLED;
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# debug function showing line number and call chain
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# Usage: _debug(__LINE__, "message")
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sub _debug {
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return unless $debug_ENABLED;
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my ($line, $message) = @_;
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# Get function call chain
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my @caller1 = caller(1); # who called debug()
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my @caller1 = caller(1); # who called _debug()
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my @caller2 = caller(2); # parent of caller
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my $sub1 = $caller1[3] || 'main';
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@ -39,12 +39,13 @@ sub debug {
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my $stats_dir = '/var/run/pve-gpu';
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my $state_file = '/var/run/pve-gpu/stats.json';
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my $lock_file = '/var/run/pve-gpu/pve-gpu-collector.lock';
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my $monitor_lock = '/var/run/pve-gpu/pve-gpu-monitor.lock';
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my $startup_lock = $lock_file . ".startup";
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my $last_snapshot = {};
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my $last_mtime = 0;
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my $is_collector_parent = 0; # Flag to track if this process started collectors
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my $last_get_graphic_stats_time = 0; # Track when get_graphic_stats was last called
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my $COLLECTOR_TIMEOUT = 0; # Stop collectors x seconds after last get_graphic_stats call
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my $COLLECTOR_TIMEOUT = 10; # Stop collectors x seconds after last get_graphic_stats call
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my $intel_gpu_enabled = 1; # Set to 0 to disable Intel GPU support
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my $amd_gpu_enabled = 0; # Set to 1 to enable AMD GPU support (not yet implemented)
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@ -57,7 +58,7 @@ my $monitor_running = 0;
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# ============================================================================
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# Parse Intel GPU line output format
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sub parse_intel_gpu_line {
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sub _parse_intel_gpu_line {
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my ($line) = @_;
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# Expected format (with aligned columns):
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@ -128,7 +129,7 @@ sub parse_intel_gpu_line {
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}
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# Get list of Intel GPU devices
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sub get_intel_gpu_devices {
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sub _get_intel_gpu_devices {
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my @devices = ();
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return @devices unless -x '/usr/bin/intel_gpu_top';
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@ -148,18 +149,18 @@ sub get_intel_gpu_devices {
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path => $path,
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drm_path => "/dev/dri/$card"
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};
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debug(__LINE__, "Found GPU device: $card -> $name ($path)");
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_debug(__LINE__, "Found GPU device: $card -> $name ($path)");
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}
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}
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close $fh;
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} else {
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debug(__LINE__, "Failed to run intel_gpu_top -L: $!");
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_debug(__LINE__, "Failed to run intel_gpu_top -L: $!");
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}
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return @devices;
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}
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sub collector_for_intel_device {
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sub _collector_for_intel_device {
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my ($device) = @_;
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$0 = "pve-mod-gpu-intel-collector: $device->{card}";
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@ -169,31 +170,31 @@ sub collector_for_intel_device {
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# Each device writes to its own file
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my $device_state_file = "/var/run/pve-gpu/stats-$device->{card}.json";
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debug(__LINE__, "Collector started for device: $drm_dev, writing to $device_state_file");
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_debug(__LINE__, "Collector started for device: $drm_dev, writing to $device_state_file");
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# Set up signal handlers for graceful shutdown
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my $shutdown = 0;
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$SIG{TERM} = sub {
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debug(__LINE__, "Collector for $device->{card} received SIGTERM");
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_debug(__LINE__, "Collector for $device->{card} received SIGTERM");
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$shutdown = 1;
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kill 'TERM', $intel_gpu_top_pid if defined $intel_gpu_top_pid && $intel_gpu_top_pid > 0;
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};
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$SIG{INT} = sub {
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debug(__LINE__, "Collector for $device->{card} received SIGINT");
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_debug(__LINE__, "Collector for $device->{card} received SIGINT");
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$shutdown = 1;
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kill 'TERM', $intel_gpu_top_pid if defined $intel_gpu_top_pid && $intel_gpu_top_pid > 0;
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};
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# Run intel_gpu_top once and keep reading from it
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debug(__LINE__, "About to open pipe to intel_gpu_top");
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_debug(__LINE__, "About to open pipe to intel_gpu_top");
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$intel_gpu_top_pid = open(my $fh, '-|', "intel_gpu_top -d $drm_dev -s 1000 -l 2>&1");
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unless (defined $intel_gpu_top_pid && $intel_gpu_top_pid > 0) {
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debug(__LINE__, "Failed to run intel_gpu_top for $drm_dev: $!");
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_debug(__LINE__, "Failed to run intel_gpu_top for $drm_dev: $!");
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exit 1;
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}
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debug(__LINE__, "Pipe opened successfully, PID=$intel_gpu_top_pid");
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_debug(__LINE__, "Pipe opened successfully, PID=$intel_gpu_top_pid");
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my $line_count = 0;
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my $node_name = "node0"; # You may want to generate this based on device index
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@ -209,7 +210,7 @@ sub collector_for_intel_device {
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# Check if this is a data line
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if ($line =~ /^\s*[\d\s\.]+$/) {
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my $stats = parse_intel_gpu_line($line);
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my $stats = _parse_intel_gpu_line($line);
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if ($stats) {
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# Build device-specific structure (just the node, not the full Graphics/Intel hierarchy)
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@ -227,17 +228,17 @@ sub collector_for_intel_device {
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open my $ofh, '>', $device_state_file or die "Failed to open $device_state_file: $!";
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print $ofh JSON->new->pretty->encode($device_data);
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close $ofh;
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debug(__LINE__, "Wrote stats to $device_state_file (line #$line_count)");
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_debug(__LINE__, "Wrote stats to $device_state_file (line #$line_count)");
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};
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if ($@) {
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debug(__LINE__, "Error writing stats: $@");
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_debug(__LINE__, "Error writing stats: $@");
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}
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}
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}
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}
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close $fh;
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debug(__LINE__, "Collector for $device->{card} shutting down");
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_debug(__LINE__, "Collector for $device->{card} shutting down");
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exit 0;
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}
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@ -245,25 +246,25 @@ sub collector_for_intel_device {
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# AMD GPU Support (Placeholder)
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# ============================================================================
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sub get_amd_gpu_devices {
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sub _get_amd_gpu_devices {
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# TODO: Implement AMD GPU detection
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# Use rocminfo or similar tools to detect AMD GPUs
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debug(__LINE__, "AMD GPU support not yet implemented");
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_debug(__LINE__, "AMD GPU support not yet implemented");
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return ();
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}
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sub parse_amd_gpu_line {
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sub _parse_amd_gpu_line {
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my ($line) = @_;
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# TODO: Implement AMD GPU line parsing
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# Parse rocm-smi or similar output
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debug(__LINE__, "AMD GPU line parsing not yet implemented");
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_debug(__LINE__, "AMD GPU line parsing not yet implemented");
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return undef;
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}
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sub collector_for_amd_device {
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sub _collector_for_amd_device {
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my ($device) = @_;
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# TODO: Implement AMD GPU collector
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debug(__LINE__, "AMD GPU collector not yet implemented");
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_debug(__LINE__, "AMD GPU collector not yet implemented");
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exit 0;
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}
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@ -274,7 +275,7 @@ sub collector_for_amd_device {
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sub get_nvidia_gpu_devices {
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# TODO: Implement NVIDIA GPU detection
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# Use nvidia-smi to detect NVIDIA GPUs
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debug(__LINE__, "NVIDIA GPU support not yet implemented");
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_debug(__LINE__, "NVIDIA GPU support not yet implemented");
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return ();
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}
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@ -282,14 +283,14 @@ sub parse_nvidia_gpu_line {
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my ($line) = @_;
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# TODO: Implement NVIDIA GPU line parsing
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# Parse nvidia-smi output
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debug(__LINE__, "NVIDIA GPU line parsing not yet implemented");
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_debug(__LINE__, "NVIDIA GPU line parsing not yet implemented");
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return undef;
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}
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sub collector_for_nvidia_device {
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my ($device) = @_;
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# TODO: Implement NVIDIA GPU collector
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debug(__LINE__, "NVIDIA GPU collector not yet implemented");
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_debug(__LINE__, "NVIDIA GPU collector not yet implemented");
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exit 0;
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}
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@ -298,28 +299,128 @@ sub collector_for_nvidia_device {
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# ============================================================================
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# Check if a process is alive
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sub is_process_alive {
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sub _is_process_alive {
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my ($pid) = @_;
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return -d "/proc/$pid";
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}
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# ============================================================================
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# API calls
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# ============================================================================
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sub get_graphic_stats {
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_debug(__LINE__, "get_graphic_stats called");
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# Start PVE Mod worker, if not already running
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_pve_mod_worker();
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# Find all device-specific stat files
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my $dh;
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unless (opendir($dh, $stats_dir)) {
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_debug(__LINE__, "Failed to open stats directory: $stats_dir: $!");
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return $last_snapshot;
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}
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my @stat_files = grep { /^stats-card\d+\.json$/ } readdir($dh);
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closedir($dh);
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unless (@stat_files) {
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_debug(__LINE__, "No device stat files found in $stats_dir");
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return $last_snapshot;
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}
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_debug(__LINE__, "Found " . scalar(@stat_files) . " device stat file(s): " . join(', ', @stat_files));
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# Check if any files have been modified
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my $newest_mtime = 0;
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my $files_changed = 0;
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foreach my $file (@stat_files) {
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my $filepath = "$stats_dir/$file";
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my @stat = stat($filepath);
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if (@stat && $stat[9] > $newest_mtime) {
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$newest_mtime = $stat[9];
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}
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}
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if ($newest_mtime == $last_mtime) {
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_debug(__LINE__, "No device files modified, returning cached snapshot");
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return $last_snapshot;
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}
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_debug(__LINE__, "Device files modified ($last_mtime -> $newest_mtime), reading and merging files");
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# Merge all device files
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my $merged = {
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Graphics => {
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Intel => {}
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}
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};
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foreach my $file (@stat_files) {
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my $filepath = "$stats_dir/$file";
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_debug(__LINE__, "Reading device file: $filepath");
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eval {
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my $fh;
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unless (open($fh, '<', $filepath)) {
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_debug(__LINE__, "Failed to open $filepath: $!");
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return;
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}
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local $/;
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my $json = <$fh>;
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close($fh);
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_debug(__LINE__, "Read $file, JSON length: " . length($json) . " bytes");
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my $device_data = decode_json($json);
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# Merge this device's data into the main structure
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foreach my $node_name (keys %$device_data) {
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$merged->{Graphics}->{Intel}->{$node_name} = $device_data->{$node_name};
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_debug(__LINE__, "Merged node '$node_name' from $file");
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}
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};
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if ($@) {
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_debug(__LINE__, "Failed to read/parse $filepath: $@");
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}
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}
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# Update cache
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$last_snapshot = $merged;
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$last_mtime = $newest_mtime;
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$last_get_graphic_stats_time = time();
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_debug(__LINE__, "Successfully merged " . scalar(keys %{$merged->{Graphics}->{Intel}}) . " device node(s)");
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# Notify monitor of activity
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_notify_monitor();
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return $last_snapshot;
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}
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# ============================================================================
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# Main Collector
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# ============================================================================
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sub start_graphics_collectors {
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sub _start_graphics_collectors {
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if ($intel_gpu_enabled == 0 && $amd_gpu_enabled == 0 && $nvidia_gpu_enabled == 0) {
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debug(__LINE__, "No GPU types enabled, skipping collector startup");
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_debug(__LINE__, "No GPU types enabled, skipping collector startup");
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return;
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}
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else {
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_debug(__LINE__, "Starting graphics collectors");
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}
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# NOW check if collectors are already running (while holding startup lock)
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my %existing_collectors;
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if (-f $lock_file) {
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debug(__LINE__, "Lock file exists: $lock_file");
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_debug(__LINE__, "Lock file exists: $lock_file");
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if (open(my $lock_fh, '<', $lock_file)) {
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debug(__LINE__, "Opened lock file for reading");
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_debug(__LINE__, "Opened lock file for reading");
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while (my $line = <$lock_fh>) {
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chomp $line;
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if ($line =~ /^(\d+)\s+(\S+)/) {
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@ -331,10 +432,10 @@ sub start_graphics_collectors {
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}
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close($lock_fh);
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} else {
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debug(__LINE__, "Failed to open lock file: $!");
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_debug(__LINE__, "Failed to open lock file: $!");
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}
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} else {
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debug(__LINE__, "Lock file does not exist. Clean start");
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_debug(__LINE__, "Lock file does not exist. Clean start");
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}
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# Generalized device collector management for future AMD/NVIDIA support
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@ -344,21 +445,22 @@ sub start_graphics_collectors {
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# Intel
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if ($intel_gpu_enabled) {
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debug(__LINE__, "Checking for intel_gpu_top");
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_debug(__LINE__, "Intel GPU support enabled");
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_debug(__LINE__, "Checking for intel_gpu_top");
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unless (-x '/usr/bin/intel_gpu_top') {
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debug(__LINE__, "intel_gpu_top not executable");
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_debug(__LINE__, "intel_gpu_top not executable");
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unlink($startup_lock);
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return;
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}
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debug(__LINE__, "intel_gpu_top is executable");
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debug(__LINE__, "Getting Intel GPU devices");
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my @intel_devices = get_intel_gpu_devices();
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_debug(__LINE__, "intel_gpu_top is executable");
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_debug(__LINE__, "Getting Intel GPU devices");
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my @intel_devices = _get_intel_gpu_devices();
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unless (@intel_devices) {
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debug(__LINE__, "No Intel GPU devices found");
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_debug(__LINE__, "No Intel GPU devices found");
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unlink($startup_lock);
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return;
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}
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debug(__LINE__, "Found " . scalar(@intel_devices) . " Intel GPU device(s)");
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_debug(__LINE__, "Found " . scalar(@intel_devices) . " Intel GPU device(s)");
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foreach my $device (@intel_devices) {
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push @all_devices, $device;
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push @all_types, 'intel';
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@ -366,8 +468,8 @@ sub start_graphics_collectors {
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}
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# AMD (future)
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if ($amd_gpu_enabled) {
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my @amd_devices = get_amd_gpu_devices();
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debug(__LINE__, "Got " . scalar(@amd_devices) . " AMD devices");
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my @amd_devices = _get_amd_gpu_devices();
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_debug(__LINE__, "Got " . scalar(@amd_devices) . " AMD devices");
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foreach my $device (@amd_devices) {
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push @all_devices, $device;
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push @all_types, 'amd';
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@ -376,7 +478,7 @@ sub start_graphics_collectors {
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# NVIDIA (future)
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if ($nvidia_gpu_enabled) {
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my @nvidia_devices = get_nvidia_gpu_devices();
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debug(__LINE__, "Got " . scalar(@nvidia_devices) . " NVIDIA devices");
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_debug(__LINE__, "Got " . scalar(@nvidia_devices) . " NVIDIA devices");
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foreach my $device (@nvidia_devices) {
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push @all_devices, $device;
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push @all_types, 'nvidia';
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@ -391,47 +493,47 @@ sub start_graphics_collectors {
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my $type = $all_types[$i];
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my $card = $device->{card};
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my $existing_pid = $existing_collectors{$card};
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if ($existing_pid && is_process_alive($existing_pid)) {
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debug(__LINE__, "Collector for $type $card already running with PID $existing_pid");
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if ($existing_pid && _is_process_alive($existing_pid)) {
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_debug(__LINE__, "Collector for $type $card already running with PID $existing_pid");
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push @child_pids, $existing_pid;
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push @child_devices, $device;
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push @child_types, $type;
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next;
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}
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debug(__LINE__, "About to fork collector for $type $card");
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_debug(__LINE__, "About to fork collector for $type $card");
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my $pid = fork();
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unless (defined $pid) {
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debug(__LINE__, "fork failed: $!");
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_debug(__LINE__, "fork failed: $!");
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unlink($startup_lock);
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die "fork failed: $!";
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}
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if ($pid == 0) {
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# Child process
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debug(__LINE__, "In child process for $type $card");
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_debug(__LINE__, "In child process for $type $card");
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if ($type eq 'intel') {
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collector_for_intel_device($device);
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_collector_for_intel_device($device);
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} elsif ($type eq 'amd') {
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collector_for_amd_device($device);
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_collector_for_amd_device($device);
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} elsif ($type eq 'nvidia') {
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collector_for_nvidia_device($device);
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} else {
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debug(__LINE__, "Unknown GPU type $type for $card");
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_debug(__LINE__, "Unknown GPU type $type for $card");
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exit(1);
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}
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# Should not reach here
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exit(0);
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} else {
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debug(__LINE__, "Forked child PID $pid for $type $card");
|
||||
_debug(__LINE__, "Forked child PID $pid for $type $card");
|
||||
push @child_pids, $pid;
|
||||
push @child_devices, $device;
|
||||
push @child_types, $type;
|
||||
}
|
||||
}
|
||||
debug(__LINE__, "Active children: " . join(", ", @child_pids));
|
||||
_debug(__LINE__, "Active children: " . join(", ", @child_pids));
|
||||
|
||||
# Write child PIDs and device cards/types to lock file
|
||||
if (open(my $lock_fh, '>', $lock_file)) {
|
||||
debug(__LINE__, "Opened lock file for writing");
|
||||
_debug(__LINE__, "Opened lock file for writing");
|
||||
for (my $i = 0; $i < @child_pids; $i++) {
|
||||
my $pid = $child_pids[$i];
|
||||
my $device = $child_devices[$i];
|
||||
@ -440,11 +542,11 @@ sub start_graphics_collectors {
|
||||
print $lock_fh "$pid $card $type\n";
|
||||
}
|
||||
close($lock_fh);
|
||||
debug(__LINE__, "Wrote " . scalar(@child_pids) . " collector PID(s) to lock file");
|
||||
_debug(__LINE__, "Wrote " . scalar(@child_pids) . " collector PID(s) to lock file");
|
||||
} else {
|
||||
debug(__LINE__, "Failed to open lock file for writing: $!");
|
||||
_debug(__LINE__, "Failed to open lock file for writing: $!");
|
||||
foreach my $pid (@child_pids) {
|
||||
debug(__LINE__, "Killing child $pid due to lock file write failure");
|
||||
_debug(__LINE__, "Killing child $pid due to lock file write failure");
|
||||
kill 'TERM', $pid;
|
||||
}
|
||||
unlink($startup_lock);
|
||||
@ -463,115 +565,27 @@ sub start_graphics_collectors {
|
||||
my $alive = kill(0, $pid);
|
||||
if ($alive) {
|
||||
$any_alive = 1;
|
||||
debug(__LINE__, "Verified child PID $pid for $card is alive");
|
||||
_debug(__LINE__, "Verified child PID $pid for $card is alive");
|
||||
} else {
|
||||
debug(__LINE__, "WARNING - Child PID $pid for $card died immediately!");
|
||||
_debug(__LINE__, "WARNING - Child PID $pid for $card died immediately!");
|
||||
}
|
||||
}
|
||||
unless ($any_alive) {
|
||||
debug(__LINE__, "ERROR - No children alive after fork!");
|
||||
}
|
||||
_debug(__LINE__, "ERROR - No children alive after fork!");
|
||||
}
|
||||
|
||||
sub get_graphic_stats {
|
||||
debug(__LINE__, "get_graphic_stats called");
|
||||
|
||||
# Start PVE Mod worker, if not already running
|
||||
pve_mod_worker();
|
||||
|
||||
# Find all device-specific stat files
|
||||
my $dh;
|
||||
unless (opendir($dh, $stats_dir)) {
|
||||
debug(__LINE__, "Failed to open stats directory: $stats_dir: $!");
|
||||
return $last_snapshot;
|
||||
_debug(__LINE__, "Graphics collectors started");
|
||||
}
|
||||
|
||||
my @stat_files = grep { /^stats-card\d+\.json$/ } readdir($dh);
|
||||
closedir($dh);
|
||||
|
||||
unless (@stat_files) {
|
||||
debug(__LINE__, "No device stat files found in $stats_dir");
|
||||
return $last_snapshot;
|
||||
}
|
||||
|
||||
debug(__LINE__, "Found " . scalar(@stat_files) . " device stat file(s): " . join(', ', @stat_files));
|
||||
|
||||
# Check if any files have been modified
|
||||
my $newest_mtime = 0;
|
||||
my $files_changed = 0;
|
||||
|
||||
foreach my $file (@stat_files) {
|
||||
my $filepath = "$stats_dir/$file";
|
||||
my @stat = stat($filepath);
|
||||
if (@stat && $stat[9] > $newest_mtime) {
|
||||
$newest_mtime = $stat[9];
|
||||
}
|
||||
}
|
||||
|
||||
if ($newest_mtime == $last_mtime) {
|
||||
debug(__LINE__, "No device files modified, returning cached snapshot");
|
||||
return $last_snapshot;
|
||||
}
|
||||
|
||||
debug(__LINE__, "Device files modified ($last_mtime -> $newest_mtime), reading and merging files");
|
||||
|
||||
# Merge all device files
|
||||
my $merged = {
|
||||
Graphics => {
|
||||
Intel => {}
|
||||
}
|
||||
};
|
||||
|
||||
foreach my $file (@stat_files) {
|
||||
my $filepath = "$stats_dir/$file";
|
||||
|
||||
debug(__LINE__, "Reading device file: $filepath");
|
||||
|
||||
eval {
|
||||
my $fh;
|
||||
unless (open($fh, '<', $filepath)) {
|
||||
debug(__LINE__, "Failed to open $filepath: $!");
|
||||
return;
|
||||
}
|
||||
|
||||
local $/;
|
||||
my $json = <$fh>;
|
||||
close($fh);
|
||||
|
||||
debug(__LINE__, "Read $file, JSON length: " . length($json) . " bytes");
|
||||
|
||||
my $device_data = decode_json($json);
|
||||
|
||||
# Merge this device's data into the main structure
|
||||
foreach my $node_name (keys %$device_data) {
|
||||
$merged->{Graphics}->{Intel}->{$node_name} = $device_data->{$node_name};
|
||||
debug(__LINE__, "Merged node '$node_name' from $file");
|
||||
}
|
||||
};
|
||||
if ($@) {
|
||||
debug(__LINE__, "Failed to read/parse $filepath: $@");
|
||||
}
|
||||
}
|
||||
|
||||
# Update cache
|
||||
$last_snapshot = $merged;
|
||||
$last_mtime = $newest_mtime;
|
||||
$last_get_graphic_stats_time = time();
|
||||
|
||||
debug(__LINE__, "Successfully merged " . scalar(keys %{$merged->{Graphics}->{Intel}}) . " device node(s)");
|
||||
|
||||
return $last_snapshot;
|
||||
}
|
||||
|
||||
sub pve_mod_starter {
|
||||
sub _pve_mod_starter {
|
||||
# Try to acquire startup lock FIRST (prevents race conditions)
|
||||
my $startup_fh;
|
||||
|
||||
debug(__LINE__, "Trying to acquire startup lock: $startup_lock");
|
||||
_debug(__LINE__, "Trying to acquire startup lock: $startup_lock");
|
||||
|
||||
unless (sysopen($startup_fh, $startup_lock, O_CREAT|O_EXCL|O_WRONLY, 0644)) {
|
||||
# Startup lock exists - check if it's stale
|
||||
debug(__LINE__, "Startup lock exists, checking if stale");
|
||||
_debug(__LINE__, "Startup lock exists, checking if stale");
|
||||
|
||||
if (open(my $check_fh, '<', $startup_lock)) {
|
||||
my $lock_pid = <$check_fh>;
|
||||
@ -579,64 +593,64 @@ sub pve_mod_starter {
|
||||
close($check_fh);
|
||||
|
||||
if (defined $lock_pid && $lock_pid =~ /^\d+$/) {
|
||||
debug(__LINE__, "Startup lock held by PID $lock_pid");
|
||||
_debug(__LINE__, "Startup lock held by PID $lock_pid");
|
||||
|
||||
if (is_process_alive($lock_pid)) {
|
||||
debug(__LINE__, "Lock holder PID $lock_pid is still alive, waiting");
|
||||
if (_is_process_alive($lock_pid)) {
|
||||
_debug(__LINE__, "Lock holder PID $lock_pid is still alive, waiting");
|
||||
} else {
|
||||
# Lock holder is dead, remove stale lock
|
||||
debug(__LINE__, "Lock holder PID $lock_pid is dead, removing stale startup lock");
|
||||
_debug(__LINE__, "Lock holder PID $lock_pid is dead, removing stale startup lock");
|
||||
unlink($startup_lock);
|
||||
|
||||
# Try to acquire lock again
|
||||
unless (sysopen($startup_fh, $startup_lock, O_CREAT|O_EXCL|O_WRONLY, 0644)) {
|
||||
debug(__LINE__, "Failed to acquire startup lock on retry: $!");
|
||||
_debug(__LINE__, "Failed to acquire startup lock on retry: $!");
|
||||
return;
|
||||
}
|
||||
debug(__LINE__, "Acquired startup lock after removing stale lock");
|
||||
_debug(__LINE__, "Acquired startup lock after removing stale lock");
|
||||
}
|
||||
} else {
|
||||
# Invalid PID in lock file, remove it
|
||||
debug(__LINE__, "Invalid PID in startup lock, removing");
|
||||
_debug(__LINE__, "Invalid PID in startup lock, removing");
|
||||
unlink($startup_lock);
|
||||
|
||||
# Try to acquire lock again
|
||||
unless (sysopen($startup_fh, $startup_lock, O_CREAT|O_EXCL|O_WRONLY, 0644)) {
|
||||
debug(__LINE__, "Failed to acquire startup lock on retry: $!");
|
||||
_debug(__LINE__, "Failed to acquire startup lock on retry: $!");
|
||||
return;
|
||||
}
|
||||
debug(__LINE__, "Acquired startup lock after removing invalid lock");
|
||||
_debug(__LINE__, "Acquired startup lock after removing invalid lock");
|
||||
}
|
||||
} else {
|
||||
debug(__LINE__, "Could not read startup lock file: $!");
|
||||
_debug(__LINE__, "Could not read startup lock file: $!");
|
||||
return;
|
||||
}
|
||||
} else {
|
||||
debug(__LINE__, "Acquired startup lock on first try");
|
||||
_debug(__LINE__, "Acquired startup lock on first try");
|
||||
}
|
||||
|
||||
# We have the startup lock
|
||||
print $startup_fh "$$\n";
|
||||
close($startup_fh);
|
||||
debug(__LINE__, "Wrote PID, $$, to startup lock");
|
||||
_debug(__LINE__, "Wrote PID, $$, to startup lock");
|
||||
}
|
||||
|
||||
sub pve_mod_worker {
|
||||
sub _pve_mod_worker {
|
||||
# Give the pid a unique name for easier identification
|
||||
$0 = "pve_mod_worker";
|
||||
|
||||
# Ensure directory exists
|
||||
my $run_dir = '/var/run/pve-gpu';
|
||||
unless (-d $run_dir) {
|
||||
debug(__LINE__, "Creating directory $run_dir");
|
||||
mkdir($run_dir, 0755) or debug(__LINE__, "Failed to create $run_dir: $!");
|
||||
_debug(__LINE__, "Creating directory $run_dir");
|
||||
mkdir($run_dir, 0755) or _debug(__LINE__, "Failed to create $run_dir: $!");
|
||||
}
|
||||
|
||||
# Acquire startup lock and start application
|
||||
pve_mod_starter();
|
||||
_pve_mod_starter();
|
||||
|
||||
# Start graphics collectors
|
||||
start_graphics_collectors();
|
||||
_start_graphics_collectors();
|
||||
|
||||
# Start sensor collector
|
||||
# TBD
|
||||
@ -644,36 +658,139 @@ sub pve_mod_worker {
|
||||
# Start UPS collector
|
||||
# TBD
|
||||
|
||||
_debug(__LINE__, "All collectors started");
|
||||
|
||||
# Start gui activity monitor process
|
||||
pve_mod_keep_alive();
|
||||
_start_monitor_process();
|
||||
|
||||
# Remove startup lock LAST
|
||||
unlink($startup_lock);
|
||||
debug(__LINE__, "Released startup lock");
|
||||
_debug(__LINE__, "Released startup lock");
|
||||
|
||||
debug(__LINE__, "Collectors started successfully, returning");
|
||||
_debug(__LINE__, "pve_mod_worker started successfully, returning");
|
||||
}
|
||||
|
||||
sub pve_mod_keep_alive {
|
||||
debug(__LINE__, "Monitor process started with PID $$");
|
||||
sub _start_monitor_process {
|
||||
_debug(__LINE__, "_start_monitor_process called");
|
||||
|
||||
# Check if monitor is already running
|
||||
if (-f $monitor_lock) {
|
||||
_debug(__LINE__, "Monitor lock file exists, checking if monitor is alive");
|
||||
if (open my $fh, '<', $monitor_lock) {
|
||||
my $pid = <$fh>;
|
||||
close $fh;
|
||||
chomp $pid if defined $pid;
|
||||
|
||||
if ($pid && $pid =~ /^\d+$/ && _is_process_alive($pid)) {
|
||||
_debug(__LINE__, "Monitor process already running with PID $pid");
|
||||
return;
|
||||
} else {
|
||||
_debug(__LINE__, "Stale monitor lock found (PID: " . ($pid // 'undefined') . "), removing");
|
||||
unlink($monitor_lock);
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
_debug(__LINE__, "Forking new monitor process");
|
||||
my $monitor_pid = fork();
|
||||
# give the process a unique name
|
||||
$0 = "pve-mod-monitor";
|
||||
|
||||
|
||||
unless (defined $monitor_pid) {
|
||||
_debug(__LINE__, "Failed to fork monitor process: $!");
|
||||
return;
|
||||
}
|
||||
|
||||
if ($monitor_pid == 0) {
|
||||
# Child process - run the monitor
|
||||
_debug(__LINE__, "Child process forked, calling _pve_mod_keep_alive");
|
||||
_pve_mod_keep_alive();
|
||||
exit(0); # Should never reach here
|
||||
} else {
|
||||
# Parent process - write PID to lock file
|
||||
_debug(__LINE__, "Forked monitor process with PID $monitor_pid");
|
||||
|
||||
if (open my $fh, '>', $monitor_lock) {
|
||||
print $fh "$monitor_pid\n";
|
||||
close $fh;
|
||||
_debug(__LINE__, "Wrote monitor PID to lock file: $monitor_lock");
|
||||
} else {
|
||||
_debug(__LINE__, "Failed to write monitor lock file: $!");
|
||||
kill('TERM', $monitor_pid);
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
sub _notify_monitor {
|
||||
_debug(__LINE__, "_notify_monitor called");
|
||||
unless (-f $monitor_lock) {
|
||||
_debug(__LINE__, "Monitor lock file does not exist");
|
||||
return;
|
||||
}
|
||||
|
||||
_debug(__LINE__, "Monitor lock file exists, reading PID");
|
||||
if (open my $fh, '<', $monitor_lock) {
|
||||
my $pid = <$fh>;
|
||||
close $fh;
|
||||
chomp $pid if defined $pid;
|
||||
if ($pid && $pid =~ /^\d+$/ && _is_process_alive($pid)) {
|
||||
_debug(__LINE__, "Sending USR1 signal to monitor PID $pid");
|
||||
kill('USR1', $pid);
|
||||
} else {
|
||||
# Stale lock, remove it
|
||||
_debug(__LINE__, "Monitor lock is stale (PID: " . ($pid // 'undefined') . "), removing");
|
||||
unlink($monitor_lock);
|
||||
}
|
||||
} else {
|
||||
_debug(__LINE__, "Failed to open monitor lock file: $!");
|
||||
}
|
||||
}
|
||||
|
||||
# In monitor process:
|
||||
sub _pve_mod_keep_alive {
|
||||
$0 = "pve-mod-gpu-monitor";
|
||||
_debug(__LINE__, "Monitor process started with PID $$");
|
||||
|
||||
my $last_activity = time();
|
||||
|
||||
# Set up signal handlers
|
||||
$SIG{USR1} = sub {
|
||||
$last_activity = time();
|
||||
_debug(__LINE__, "Activity ping received");
|
||||
};
|
||||
$SIG{TERM} = sub {
|
||||
_debug(__LINE__, "Monitor received SIGTERM, shutting down");
|
||||
unlink($monitor_lock);
|
||||
exit(0);
|
||||
};
|
||||
$SIG{INT} = sub {
|
||||
_debug(__LINE__, "Monitor received SIGINT, shutting down");
|
||||
unlink($monitor_lock);
|
||||
exit(0);
|
||||
};
|
||||
|
||||
while (1) {
|
||||
if(time() - $last_get_graphic_stats_time > $COLLECTOR_TIMEOUT) {
|
||||
debug(__LINE__, "No get_graphic_stats call in the last $COLLECTOR_TIMEOUT seconds, stopping collectors");
|
||||
my $idle_time = time() - $last_activity;
|
||||
|
||||
if ($idle_time > $COLLECTOR_TIMEOUT) {
|
||||
_debug(__LINE__, "No activity for ${idle_time}s (timeout: ${COLLECTOR_TIMEOUT}s), stopping collectors");
|
||||
stop_collectors();
|
||||
unlink($monitor_lock);
|
||||
exit(0);
|
||||
}
|
||||
sleep(1);
|
||||
debug(__LINE__, "pve_mod_keep_alive still running");
|
||||
|
||||
sleep(10);
|
||||
}
|
||||
}
|
||||
|
||||
sub cleanup {
|
||||
unless ($is_collector_parent) {
|
||||
debug(__LINE__, "This process did not start collectors, skipping cleanup");
|
||||
_debug(__LINE__, "This process did not start collectors, skipping cleanup");
|
||||
return;
|
||||
}
|
||||
|
||||
debug(__LINE__, "Starting cleanup (this should rarely happen)");
|
||||
_debug(__LINE__, "Starting cleanup (this should rarely happen)");
|
||||
|
||||
# todo add remove of stat files
|
||||
|
||||
@ -687,7 +804,7 @@ sub cleanup {
|
||||
|
||||
# Instead, add a manual cleanup function that can be called explicitly
|
||||
sub stop_collectors {
|
||||
debug(__LINE__, "Stopping all collectors");
|
||||
_debug(__LINE__, "Stopping all collectors");
|
||||
|
||||
# Read current PIDs from lock file
|
||||
my @pids;
|
||||
@ -701,7 +818,7 @@ sub stop_collectors {
|
||||
|
||||
if (@pids) {
|
||||
# Send SIGTERM to all collectors
|
||||
debug(__LINE__, "Sending SIGTERM to " . scalar(@pids) . " process(es)");
|
||||
_debug(__LINE__, "Sending SIGTERM to " . scalar(@pids) . " process(es)");
|
||||
foreach my $pid (@pids) {
|
||||
kill('TERM', $pid) if kill(0, $pid);
|
||||
}
|
||||
@ -724,7 +841,7 @@ sub stop_collectors {
|
||||
# Force kill any survivors
|
||||
foreach my $pid (@pids) {
|
||||
if (kill(0, $pid)) {
|
||||
debug(__LINE__, "Force killing process $pid");
|
||||
_debug(__LINE__, "Force killing process $pid");
|
||||
kill('KILL', $pid);
|
||||
}
|
||||
}
|
||||
@ -732,7 +849,7 @@ sub stop_collectors {
|
||||
|
||||
unlink $state_file if -f $state_file;
|
||||
unlink $lock_file if -f $lock_file;
|
||||
debug(__LINE__, "Cleanup complete");
|
||||
_debug(__LINE__, "Cleanup complete");
|
||||
}
|
||||
|
||||
END { cleanup() }
|
||||
|
||||
Loading…
Reference in New Issue
Block a user