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We now work with the "priority" field - that's better

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This commit is contained in:
Michael Vogel 2016-07-24 20:25:11 +02:00
commit 5e81c105e0
2 changed files with 32 additions and 51 deletions
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21
boot.php
View file

@ -1786,12 +1786,27 @@ function proc_run($cmd){
$found = q("SELECT `id` FROM `workerqueue` WHERE `parameter` = '%s'",
dbesc($parameters));
$funcname = str_replace(".php", "", basename($argv[0]))."_run";
// Define the processes that have priority over any other process
/// @todo Better check for priority processes
$high_priority = array("delivery_run", "notifier_run", "pubsubpublish_run");
$low_priority = array("queue_run", "gprobe_run", "discover_poco_run");
if (in_array($funcname, $high_priority))
$priority = 1;
elseif (in_array($funcname, $low_priority))
$priority = 3;
else
$priority = 2;
if (!$found)
q("INSERT INTO `workerqueue` (`parameter`, `created`, `priority`)
VALUES ('%s', '%s', %d)",
q("INSERT INTO `workerqueue` (`function`, `parameter`, `created`, `priority`)
VALUES ('%s', '%s', '%s', %d)",
dbesc($funcname),
dbesc($parameters),
dbesc(datetime_convert()),
intval(0));
intval($priority));
// Should we quit and wait for the poller to be called as a cronjob?
if (get_config("system", "worker_dont_fork"))

62
include/poller.php
View file

@ -39,7 +39,7 @@ function poller_run(&$argv, &$argc){
return;
// Checking the number of workers
if (poller_too_much_workers($entries, $queues, $maxqueues, $active)) {
if (poller_too_much_workers()) {
poller_kill_stale_workers();
return;
}
@ -58,16 +58,14 @@ function poller_run(&$argv, &$argc){
sleep(4);
// Checking number of workers
if (poller_too_much_workers($entries, $queues, $maxqueues, $active))
if (poller_too_much_workers())
return;
$cooldown = Config::get("system", "worker_cooldown", 0);
$starttime = time();
$delayed = 0;
while ($r = q("SELECT * FROM `workerqueue` WHERE `executed` = '0000-00-00 00:00:00' ORDER BY `created` LIMIT 1")) {
while ($r = q("SELECT * FROM `workerqueue` WHERE `executed` = '0000-00-00 00:00:00' ORDER BY `priority`, `created` LIMIT 1")) {
// Constantly check the number of parallel database processes
if ($a->max_processes_reached())
@ -78,46 +76,9 @@ 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($entries, $queues, $maxqueues, $active))
if (poller_too_much_workers())
return;
$argv = json_decode($r[0]["parameter"]);
$argc = count($argv);
$funcname = str_replace(".php", "", basename($argv[0]))."_run";
// Define the processes that have priority over any other process
/// @todo Better check for priority processes
$priority = array("delivery_run", "notifier_run", "pubsubpublish_run");
// Reserve a speed lane
if (($active == ($queues - 1)) AND ($maxqueues >= 2) AND !in_array($funcname, $priority)) {
logger("Delay call to '".$funcname."' to reserve a speed lane for high priority processes", LOGGER_DEBUG);
$delay = true;
}
// Delay other processes if the system has a high load and there are many pending processes.
// The "delayed" value is a safety mechanism for the case when there are no high priority processes in the queue.
if (!$delay AND (($queues / $maxqueues) <= 0.5) AND (($entries > 100) AND ($delayed < 100)) AND !in_array($funcname, $priority)) {
// Count the number of delayed processes
++$delayed;
logger("Delay call to '".$funcname."' for performance reasons (Delay ".$delayed.")", LOGGER_DEBUG);
$delay = true;
}
if ($delay) {
q("UPDATE `workerqueue` SET `created` = '%s' WHERE `id` = %d",
dbesc(datetime_convert()),
intval($r[0]["id"]));
continue;
}
// If we delivered a process that has high priority we reset the delayed counter.
// When we reached the limit we will process any entry until we reach a high priority process.
if (in_array($funcname, $priority))
$delayed = 0;
q("UPDATE `workerqueue` SET `executed` = '%s', `pid` = %d WHERE `id` = %d AND `executed` = '0000-00-00 00:00:00'",
dbesc(datetime_convert()),
intval(getmypid()),
@ -132,6 +93,10 @@ function poller_run(&$argv, &$argc){
continue;
}
$argv = json_decode($r[0]["parameter"]);
$argc = count($argv);
// Check for existance and validity of the include file
$include = $argv[0];
@ -143,16 +108,18 @@ function poller_run(&$argv, &$argc){
require_once($include);
$funcname = str_replace(".php", "", basename($argv[0]))."_run";
if (function_exists($funcname)) {
logger("Process ".getmypid()." - ID ".$r[0]["id"].": ".$funcname." ".$r[0]["parameter"]);
logger("Process ".getmypid()." - Prio ".$r[0]["priority"]." - ID ".$r[0]["id"].": ".$funcname." ".$r[0]["parameter"]);
$funcname($argv, $argc);
if ($cooldown > 0) {
logger("Process ".getmypid()." - ID ".$r[0]["id"].": ".$funcname." - in cooldown for ".$cooldown." seconds");
logger("Process ".getmypid()." - Prio ".$r[0]["priority"]." - ID ".$r[0]["id"].": ".$funcname." - in cooldown for ".$cooldown." seconds");
sleep($cooldown);
}
logger("Process ".getmypid()." - ID ".$r[0]["id"].": ".$funcname." - done");
logger("Process ".getmypid()." - Prio ".$r[0]["priority"]." - ID ".$r[0]["id"].": ".$funcname." - done");
q("DELETE FROM `workerqueue` WHERE `id` = %d", intval($r[0]["id"]));
} else
@ -277,9 +244,8 @@ function poller_kill_stale_workers() {
}
}
function poller_too_much_workers(&$entries, &$queues, &$maxqueues, &$active) {
function poller_too_much_workers() {
$entries = 0;
$queues = get_config("system", "worker_queues");