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Configurable amount of maximum processes

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This commit is contained in:
Michael Vogel 2016-06-04 11:04:26 +02:00
parent 140225b1a8
commit b45772ba6e
3 changed files with 36 additions and 16 deletions
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7
include/dbm.php
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@ -4,23 +4,24 @@ class dbm {
$r = q("SHOW PROCESSLIST");
$s = array();
$processes = 0;
$states = array();
foreach ($r AS $process) {
$state = trim($process["State"]);
if (!in_array($state, array("", "init", "statistics")))
if (!in_array($state, array("", "init", "statistics"))) {
++$states[$state];
++$processes;
}
}
// query end
// Sending data
// updating
$statelist = "";
$processes = 0;
foreach ($states AS $state => $usage) {
if ($statelist != "")
$statelist .= ", ";
$statelist .= $state.": ".$usage;
++$processes;
}
return(array("list" => $statelist, "amount" => $processes));
}

22
include/poller.php
View file

@ -29,10 +29,17 @@ function poller_run(&$argv, &$argc){
$processlist = dbm::processlist();
if ($processlist["list"] != "") {
logger("Processes: ".$processlist["amount"]." - Processlist: ".$processlist["list"], LOGGER_DEBUG);
if ($processlist["amount"] > 5)
logger("Processcheck: Processes: ".$processlist["amount"]." - Processlist: ".$processlist["list"], LOGGER_DEBUG);
$max_processes = get_config('system', 'max_processes_backend');
if (intval($max_processes) == 0)
$max_processes = 5;
if ($processlist["amount"] > $max_processes) {
logger("Processcheck: Maximum number of processes for backend tasks (".$max_processes.") reached.", LOGGER_DEBUG);
return;
}
}
if (poller_max_connections_reached())
return;
@ -70,10 +77,17 @@ function poller_run(&$argv, &$argc){
// Log the type of database processes
$processlist = dbm::processlist();
if ($processlist["amount"] != "") {
logger("Processes: ".$processlist["amount"]." - Processlist: ".$processlist["list"], LOGGER_DEBUG);
if ($processlist["amount"] > 5)
logger("Processcheck: Processes: ".$processlist["amount"]." - Processlist: ".$processlist["list"], LOGGER_DEBUG);
$max_processes = get_config('system', 'max_processes_backend');
if (intval($max_processes) == 0)
$max_processes = 5;
if ($processlist["amount"] > $max_processes) {
logger("Processcheck: Maximum number of processes for backend tasks (".$max_processes.") reached.", LOGGER_DEBUG);
return;
}
}
// Constantly check the number of available database connections to let the frontend be accessible at any time
if (poller_max_connections_reached())

15
index.php
View file

@ -56,12 +56,17 @@ if(!$install) {
$processlist = dbm::processlist();
if ($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 ($processlist["amount"] > 20)
system_unavailable();
logger("Processcheck: Processes: ".$processlist["amount"]." - Processlist: ".$processlist["list"], LOGGER_DEBUG);
$max_processes = get_config('system', 'max_processes_frontend');
if (intval($max_processes) == 0)
$max_processes = 20;
if ($processlist["amount"] > $max_processes) {
logger("Processcheck: Maximum number of processes for frontend tasks (".$max_processes.") reached.", LOGGER_DEBUG);
return;
}
}
$maxsysload_frontend = intval(get_config('system','maxloadavg_frontend'));