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Quit when processlist is too long

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This commit is contained in:
Michael Vogel 2016-06-03 23:10:23 +02:00
parent 4914e8826b
commit df337e57d1
3 changed files with 21 additions and 7 deletions
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4
include/dbm.php
View file

@ -15,12 +15,14 @@ class dbm {
// updating
$statelist = "";
$processes = 0;
foreach ($states AS $state => $usage) {
if ($statelist != "")
$statelist .= ", ";
$statelist .= $state.": ".$usage;
++$processes;
}
return($statelist);
return(array("list" => $statelist, "amount" => $processes));
}
}
?>

14
include/poller.php
View file

@ -28,8 +28,11 @@ function poller_run(&$argv, &$argc){
};
$processlist = dbm::processlist();
if ($processlist != "")
logger("Processlist: ".$processlist, LOGGER_DEBUG);
if ($processlist["list"] != "") {
logger("Processes: ".$processlist["amount"]." - Processlist: ".$processlist["list"], LOGGER_DEBUG);
if ($processlist["amount"] > 5)
return;
}
if (poller_max_connections_reached())
return;
@ -66,8 +69,11 @@ function poller_run(&$argv, &$argc){
// Log the type of database processes
$processlist = dbm::processlist();
if ($processlist != "")
logger("Processlist: ".$processlist, LOGGER_DEBUG);
if ($processlist["amount"] != "") {
logger("Processes: ".$processlist["amount"]." - Processlist: ".$processlist["list"], LOGGER_DEBUG);
if ($processlist["amount"] > 5)
return;
}
// Constantly check the number of available database connections to let the frontend be accessible at any time
if (poller_max_connections_reached())

10
index.php
View file

@ -55,8 +55,14 @@ if(!$install) {
load_config('system');
$processlist = dbm::processlist();
if ($processlist != "")
logger("Processlist: ".$processlist, LOGGER_DEBUG);
if ($processlist["list"] != "") {
logger("Processes: ".$processlist["amount"]." - Processlist: ".$processlist["list"], LOGGER_DEBUG);
// More than 20 running database processes?
// The system is too busy, so quit.
if ($processlist["amount"] > 20)
system_unavailable();
}
$maxsysload_frontend = intval(get_config('system','maxloadavg_frontend'));
if($maxsysload_frontend < 1)