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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"); $r = q("SHOW PROCESSLIST");
$s = array(); $s = array();
$processes = 0;
$states = array(); $states = array();
foreach ($r AS $process) { foreach ($r AS $process) {
$state = trim($process["State"]); $state = trim($process["State"]);
if (!in_array($state, array("", "init", "statistics"))) if (!in_array($state, array("", "init", "statistics"))) {
++$states[$state]; ++$states[$state];
++$processes;
}
} }
// query end // query end
// Sending data // Sending data
// updating // updating
$statelist = ""; $statelist = "";
$processes = 0;
foreach ($states AS $state => $usage) { foreach ($states AS $state => $usage) {
if ($statelist != "") if ($statelist != "")
$statelist .= ", "; $statelist .= ", ";
$statelist .= $state.": ".$usage; $statelist .= $state.": ".$usage;
++$processes;
} }
return(array("list" => $statelist, "amount" => $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(); $processlist = dbm::processlist();
if ($processlist["list"] != "") { if ($processlist["list"] != "") {
logger("Processes: ".$processlist["amount"]." - Processlist: ".$processlist["list"], LOGGER_DEBUG); logger("Processcheck: Processes: ".$processlist["amount"]." - Processlist: ".$processlist["list"], LOGGER_DEBUG);
if ($processlist["amount"] > 5)
$max_processes = get_config('system', 'max_processes_backend');
if (intval($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; return;
} }
}
if (poller_max_connections_reached()) if (poller_max_connections_reached())
return; return;
@ -70,10 +77,17 @@ function poller_run(&$argv, &$argc){
// Log the type of database processes // Log the type of database processes
$processlist = dbm::processlist(); $processlist = dbm::processlist();
if ($processlist["amount"] != "") { if ($processlist["amount"] != "") {
logger("Processes: ".$processlist["amount"]." - Processlist: ".$processlist["list"], LOGGER_DEBUG); logger("Processcheck: Processes: ".$processlist["amount"]." - Processlist: ".$processlist["list"], LOGGER_DEBUG);
if ($processlist["amount"] > 5)
$max_processes = get_config('system', 'max_processes_backend');
if (intval($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; return;
} }
}
// Constantly check the number of available database connections to let the frontend be accessible at any time // Constantly check the number of available database connections to let the frontend be accessible at any time
if (poller_max_connections_reached()) if (poller_max_connections_reached())

15
index.php
View file

@ -56,12 +56,17 @@ if(!$install) {
$processlist = dbm::processlist(); $processlist = dbm::processlist();
if ($processlist["list"] != "") { if ($processlist["list"] != "") {
logger("Processes: ".$processlist["amount"]." - Processlist: ".$processlist["list"], LOGGER_DEBUG);
// More than 20 running database processes? logger("Processcheck: Processes: ".$processlist["amount"]." - Processlist: ".$processlist["list"], LOGGER_DEBUG);
// The system is too busy, so quit.
if ($processlist["amount"] > 20) $max_processes = get_config('system', 'max_processes_frontend');
system_unavailable(); if (intval($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')); $maxsysload_frontend = intval(get_config('system','maxloadavg_frontend'));