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SystemInfo::getStats() feeds the watchdog heartbeat (servers.watchdog_data), servers_stats and the LB /api stats action, and had four defects: - bytes_sent_total/bytes_received_total were assigned per interface, so only the last selected interface was kept, and the received total read tx_bytes. aggregateNetwork() now sums both totals over the same interfaces as the per-second rates and reads rx_bytes for received. network_speed keeps its first-positive rule and the interface selection is unchanged, so routing capacity is not affected. - total_running_streams was `ps ax | grep -c ffmpeg`, which counted ffprobe and shell wrappers and missed the fanout daemon's native remuxer. ProcessManager::countStreamProducers() now reads /proc and counts processes whose program is ffmpeg or `xc_fanout remux`. - The memory percentage divided by total_mem, which getMemory() reports as 0 without MemAvailable (DivisionByZeroError), and nvidia-smi XML with a single GPU process decodes process_info as one associative array (TypeError). Either aborted the watchdog pass, so the node wrote no heartbeat. memUsedPercent() and gpuProcesses() guard both. The watchdog runs one pass per process and re-execs itself, so the previous nginx request count held in a variable was always null and requests_per_second was 0 on every node. CounterRateSampler keeps the previous reading in a tmp state file (atomic replace, 120 s max age, 0 after a counter reset). The watchdog_data key set and order are unchanged. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01TQHeypQpfAXTdCysmi7b6a
83 lines
3.7 KiB
PHP
83 lines
3.7 KiB
PHP
<?php
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use PHPUnit\Framework\TestCase;
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use XcVm\Core\Process\ProcessManager;
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/**
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* ProcessManager::countStreamProducers — total_running_streams in the watchdog
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* heartbeat and servers_stats. It was `ps ax | grep -c ffmpeg`, which counted
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* ffprobe (it lives under bin/ffmpeg_bin/) and shell wrappers, and missed the
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* fanout daemon's native remuxer (`xc_fanout remux`), so copy-only streams
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* under fanout supervision were not counted. Driven against a fixture /proc
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* tree whose pids are above the kernel's PID_MAX_LIMIT.
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*/
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final class StreamProducerCountTest extends TestCase {
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private const FFMPEG = "/home/xc_vm/bin/ffmpeg_bin/8.0/ffmpeg\0-y\0-i\0http://src/live.ts\0/home/xc_vm/content/streams/7_.m3u8\0";
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private const FFPROBE = "/home/xc_vm/bin/ffmpeg_bin/8.0/ffprobe\0-v\0quiet\0-show_streams\0http://src/live.ts\0";
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private const SHELL = "sh\0-c\0/home/xc_vm/bin/ffmpeg_bin/8.0/ffmpeg -i http://src/live.ts /home/xc_vm/content/streams/7_.m3u8\0";
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private const REMUX = "/home/xc_vm/bin/xc_fanout/xc_fanout\0remux\0-loglevel\0error\0-i\0http://src/live.ts\0/home/xc_vm/content/streams/8_.m3u8\0";
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private const DAEMON = "/home/xc_vm/bin/xc_fanout/xc_fanout\0-config\0/home/xc_vm/bin/xc_fanout/config.json\0";
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private const FPM = 'php-fpm: pool xc_vm';
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private string $rRoot;
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protected function setUp(): void {
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$this->rRoot = sys_get_temp_dir() . '/xcvm_proc_' . uniqid('', true);
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mkdir($this->rRoot, 0755, true);
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}
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protected function tearDown(): void {
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foreach (glob($this->rRoot . '/*/cmdline') ?: [] as $rFile) {
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unlink($rFile);
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}
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foreach (glob($this->rRoot . '/*') ?: [] as $rDir) {
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rmdir($rDir);
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}
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@rmdir($this->rRoot);
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}
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private function process(int $rPID, string $rCmdline): void {
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mkdir($this->rRoot . '/' . $rPID);
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file_put_contents($this->rRoot . '/' . $rPID . '/cmdline', $rCmdline);
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}
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public function testCountsFfmpegAndNativeRemuxProducersOnly(): void {
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$this->process(4300001, self::FFMPEG);
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$this->process(4300002, self::FFPROBE);
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$this->process(4300003, self::SHELL);
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$this->process(4300004, self::REMUX);
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$this->process(4300005, self::DAEMON);
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$this->process(4300006, self::FPM);
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// A kernel thread or a zombie has an empty cmdline.
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$this->process(4300007, '');
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$this->assertSame(2, ProcessManager::countStreamProducers($this->rRoot));
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}
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public function testAnEmptyProcRootCountsNothing(): void {
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$this->assertSame(0, ProcessManager::countStreamProducers($this->rRoot));
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$this->assertSame(0, ProcessManager::countStreamProducers($this->rRoot . '/missing'));
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}
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public function testTheProducerPredicate(): void {
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$this->assertTrue(ProcessManager::isStreamProducerCmdline(self::FFMPEG), 'ffmpeg');
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$this->assertTrue(ProcessManager::isStreamProducerCmdline(self::REMUX), 'xc_fanout remux');
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$this->assertTrue(ProcessManager::isStreamProducerCmdline("ffmpeg\0-i\0x\0"), 'ffmpeg found on PATH');
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$this->assertFalse(ProcessManager::isStreamProducerCmdline(self::FFPROBE), 'ffprobe');
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$this->assertFalse(ProcessManager::isStreamProducerCmdline(self::SHELL), 'a shell wrapper');
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$this->assertFalse(ProcessManager::isStreamProducerCmdline(self::DAEMON), 'the fanout daemon');
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$this->assertFalse(ProcessManager::isStreamProducerCmdline(self::FPM), 'a PHP-FPM worker');
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$this->assertFalse(ProcessManager::isStreamProducerCmdline(''), 'an empty cmdline');
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$this->assertFalse(ProcessManager::isStreamProducerCmdline("/usr/bin/xc_fanout_remux\0"), 'a lookalike name');
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}
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public function testGetStatsCountsProducersInsteadOfGreppingPs(): void {
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$rSource = (string) file_get_contents(MAIN_HOME . 'Core/Util/SystemInfo.php');
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$this->assertStringContainsString("\$rJSON['total_running_streams'] = ProcessManager::countStreamProducers();", $rSource);
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$this->assertStringNotContainsString('grep -c ffmpeg', $rSource);
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}
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}
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