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Double check for maximum number of workers

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This commit is contained in:
Michael Vogel 2015-12-06 16:28:28 +01:00
parent 2dc0b2b731
commit 54085508e5
1 changed files with 11 additions and 6 deletions
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17
include/poller.php
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@ -56,12 +56,17 @@ function poller_run(&$argv, &$argc){
// But: Update processes (like the database update) mustn't be killed
}
} else
// Sleep two seconds before checking for running processes to avoid having too many workers
} else {
// Checking the number of workers
if (poller_too_much_workers(1))
return;
// Sleep four seconds before checking for running processes again to avoid having too many workers
sleep(4);
}
// Checking number of workers
if (poller_too_much_workers())
if (poller_too_much_workers(2))
return;
$starttime = time();
@ -114,13 +119,13 @@ function poller_run(&$argv, &$argc){
return;
// Count active workers and compare them with a maximum value that depends on the load
if (poller_too_much_workers())
if (poller_too_much_workers(3))
return;
}
}
function poller_too_much_workers() {
function poller_too_much_workers($stage) {
$queues = get_config("system", "worker_queues");
@ -144,7 +149,7 @@ function poller_too_much_workers() {
$slope = $maxworkers / pow($maxsysload, $exponent);
$queues = ceil($slope * pow(max(0, $maxsysload - $load), $exponent));
logger("Current load: ".$load." - maximum: ".$maxsysload." - current queues: ".$active." - maximum: ".$queues, LOGGER_DEBUG);
logger("Current load stage ".$stage.": ".$load." - maximum: ".$maxsysload." - current queues: ".$active." - maximum: ".$queues, LOGGER_DEBUG);
}