在 PHP 應(yīng)用程序中使用 Prometheus 進(jìn)行監(jiān)控時(shí),可以收集和跟蹤多種指標(biāo)
$histogram = $registry->getOrRegisterHistogram(
'http_request_duration_seconds',
'The duration of HTTP requests processed by the application.',
['method', 'route']
);
$startTime = microtime(true);
// ...處理請(qǐng)求...
$duration = microtime(true) - $startTime;
$histogram->observe($duration, ['GET', '/some/route']);
$gauge = $registry->getOrRegisterGauge(
'memory_usage_bytes',
'The amount of memory used by the application.'
);
// ...執(zhí)行一些操作...
$memoryUsage = memory_get_usage();
$gauge->set($memoryUsage);
$counter = $registry->getOrRegisterCounter(
'exceptions_total',
'The total number of exceptions thrown by the application.',
['type']
);
try {
// ...執(zhí)行可能拋出異常的代碼...
} catch (Exception $e) {
$counter->inc(['MyCustomException']);
}
$histogram = $registry->getOrRegisterHistogram(
'db_query_duration_seconds',
'The duration of database queries executed by the application.',
['query']
);
$startTime = microtime(true);
// ...執(zhí)行數(shù)據(jù)庫查詢...
$duration = microtime(true) - $startTime;
$histogram->observe($duration, ['SELECT * FROM users']);
$cacheHits = $registry->getOrRegisterCounter('cache_hits_total', 'The total number of cache hits.');
$cacheMisses = $registry->getOrRegisterCounter('cache_misses_total', 'The total number of cache misses.');
if ($cache->has($key)) {
$cacheHits->inc();
} else {
$cacheMisses->inc();
}
$gauge = $registry->getOrRegisterGauge(
'queue_length',
'The current length of the task queue.'
);
// ...獲取隊(duì)列長度(例如,從數(shù)據(jù)庫或緩存中)...
$queueLength = getQueueLength();
$gauge->set($queueLength);
這些只是 Prometheus 在 PHP 應(yīng)用程序中的一些基本監(jiān)控指標(biāo)。根據(jù)應(yīng)用程序的需求和特點(diǎn),可以根據(jù)需要收集更多指標(biāo)。在實(shí)施監(jiān)控時(shí),請(qǐng)確保遵循最佳實(shí)踐,例如使用有意義的指標(biāo)名稱和標(biāo)簽,以便于分析和警報(bào)。