Merge pull request #2159 from annando/1512-worker-processes
Better control for the number of workers
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commit
f359731fc1
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@ -38,6 +38,10 @@ function poller_run(&$argv, &$argc){
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}
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}
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// Checking the number of workers
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if (poller_too_much_workers(1))
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return;
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if(($argc <= 1) OR ($argv[1] != "no_cron")) {
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// Run the cron job that calls all other jobs
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proc_run("php","include/cron.php");
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@ -57,11 +61,11 @@ function poller_run(&$argv, &$argc){
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}
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} else
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// Sleep two seconds before checking for running processes to avoid having too many workers
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// Sleep four seconds before checking for running processes again to avoid having too many workers
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sleep(4);
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// Checking number of workers
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if (poller_too_much_workers())
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if (poller_too_much_workers(2))
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return;
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$starttime = time();
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@ -100,10 +104,10 @@ function poller_run(&$argv, &$argc){
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$funcname=str_replace(".php", "", basename($argv[0]))."_run";
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if (function_exists($funcname)) {
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logger("Process ".getmypid().": ".$funcname." ".$r[0]["parameter"]);
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logger("Process ".getmypid()." - ID ".$r[0]["id"].": ".$funcname." ".$r[0]["parameter"]);
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$funcname($argv, $argc);
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logger("Process ".getmypid().": ".$funcname." - done");
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logger("Process ".getmypid()." - ID ".$r[0]["id"].": ".$funcname." - done");
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q("DELETE FROM `workerqueue` WHERE `id` = %d", intval($r[0]["id"]));
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} else
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@ -114,13 +118,13 @@ function poller_run(&$argv, &$argc){
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return;
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// Count active workers and compare them with a maximum value that depends on the load
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if (poller_too_much_workers())
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if (poller_too_much_workers(3))
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return;
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}
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}
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function poller_too_much_workers() {
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function poller_too_much_workers($stage) {
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$queues = get_config("system", "worker_queues");
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@ -144,7 +148,7 @@ function poller_too_much_workers() {
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$slope = $maxworkers / pow($maxsysload, $exponent);
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$queues = ceil($slope * pow(max(0, $maxsysload - $load), $exponent));
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logger("Current load: ".$load." - maximum: ".$maxsysload." - current queues: ".$active." - maximum: ".$queues, LOGGER_DEBUG);
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logger("Current load stage ".$stage.": ".$load." - maximum: ".$maxsysload." - current queues: ".$active." - maximum: ".$queues, LOGGER_DEBUG);
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}
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