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There is now a memory limit for the poller

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This commit is contained in:
Michael 2017-04-29 17:36:46 +00:00
parent 46371242e5
commit 715e15cbe1
4 changed files with 48 additions and 1 deletions
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39
boot.php
View file

@ -1321,6 +1321,45 @@ class App {
return false;
}
/**
* @brief Checks if the minimal memory is reached
*
* @return bool Is the memory limit reached?
*/
public function min_memory_reached() {
$min_memory = Config::get('system', 'min_memory', 0);
if ($min_memory == 0) {
return false;
}
if (!is_readable("/proc/meminfo")) {
return false;
}
$memdata = explode("\n", file_get_contents('/proc/meminfo'));
$meminfo = array();
foreach ($memdata as $line) {
list($key, $val) = explode(":", $line);
$meminfo[$key] = (int)trim(str_replace("kB", "", $val));
$meminfo[$key] = (int)($meminfo[$key] / 1024);
}
if (!isset($meminfo['MemAvailable']) OR !isset($meminfo['MemFree'])) {
return false;
}
$free = $meminfo['MemAvailable'] + $meminfo['MemFree'];
$reached = ($free < $min_memory);
if ($reached) {
logger('Minimal memory reached: '.$free.'/'.$meminfo['MemTotal'].' - limit '.$min_memory, LOGGER_DEBUG);
}
return $reached;
}
/**
* @brief Checks if the maximum load is reached
*

4
include/poller.php
View file

@ -41,6 +41,10 @@ function poller_run($argv, $argc){
$a->start_process();
if ($a->min_memory_reached()) {
return;
}
if (poller_max_connections_reached()) {
return;
}

3
mod/admin.php
View file

@ -731,6 +731,7 @@ function admin_page_site_post(App $a) {
$timeout = ((x($_POST,'timeout')) ? intval(trim($_POST['timeout'])) : 60);
$maxloadavg = ((x($_POST,'maxloadavg')) ? intval(trim($_POST['maxloadavg'])) : 50);
$maxloadavg_frontend = ((x($_POST,'maxloadavg_frontend')) ? intval(trim($_POST['maxloadavg_frontend'])) : 50);
$min_memory = ((x($_POST,'min_memory')) ? intval(trim($_POST['min_memory'])) : 0);
$optimize_max_tablesize = ((x($_POST,'optimize_max_tablesize')) ? intval(trim($_POST['optimize_max_tablesize'])): 100);
$optimize_fragmentation = ((x($_POST,'optimize_fragmentation')) ? intval(trim($_POST['optimize_fragmentation'])): 30);
$poco_completion = ((x($_POST,'poco_completion')) ? intval(trim($_POST['poco_completion'])) : false);
@ -816,6 +817,7 @@ function admin_page_site_post(App $a) {
set_config('system','ssl_policy',$ssl_policy);
set_config('system','maxloadavg',$maxloadavg);
set_config('system','maxloadavg_frontend',$maxloadavg_frontend);
set_config('system','min_memory',$min_memory);
set_config('system','optimize_max_tablesize',$optimize_max_tablesize);
set_config('system','optimize_fragmentation',$optimize_fragmentation);
set_config('system','poco_completion',$poco_completion);
@ -1113,6 +1115,7 @@ function admin_page_site(App $a) {
'$timeout' => array('timeout', t("Network timeout"), (x(get_config('system','curl_timeout'))?get_config('system','curl_timeout'):60), t("Value is in seconds. Set to 0 for unlimited (not recommended).")),
'$maxloadavg' => array('maxloadavg', t("Maximum Load Average"), ((intval(get_config('system','maxloadavg')) > 0)?get_config('system','maxloadavg'):50), t("Maximum system load before delivery and poll processes are deferred - default 50.")),
'$maxloadavg_frontend' => array('maxloadavg_frontend', t("Maximum Load Average (Frontend)"), ((intval(get_config('system','maxloadavg_frontend')) > 0)?get_config('system','maxloadavg_frontend'):50), t("Maximum system load before the frontend quits service - default 50.")),
'$min_memory' => array('min_memory', t("Minimal Memory"), ((intval(get_config('system','min_memory')) > 0)?get_config('system','min_memory'):0), t("Minimal free memory in MB for the poller. Needs access to /proc/meminfo - default 0 (deactivated).")),
'$optimize_max_tablesize'=> array('optimize_max_tablesize', t("Maximum table size for optimization"), $optimize_max_tablesize, t("Maximum table size (in MB) for the automatic optimization - default 100 MB. Enter -1 to disable it.")),
'$optimize_fragmentation'=> array('optimize_fragmentation', t("Minimum level of fragmentation"), ((intval(get_config('system','optimize_fragmentation')) > 0)?get_config('system','optimize_fragmentation'):30), t("Minimum fragmenation level to start the automatic optimization - default value is 30%.")),

3
view/templates/admin_site.tpl
View file

@ -118,7 +118,6 @@
{{include file="field_input.tpl" field=$proxy}}
{{include file="field_input.tpl" field=$proxyuser}}
{{include file="field_input.tpl" field=$timeout}}
{{include file="field_input.tpl" field=$maxloadavg}}
{{include file="field_input.tpl" field=$maxloadavg_frontend}}
{{include file="field_input.tpl" field=$optimize_max_tablesize}}
{{include file="field_input.tpl" field=$optimize_fragmentation}}
@ -146,6 +145,8 @@
<div class="submit"><input type="submit" name="page_site" value="{{$submit|escape:'html'}}" /></div>
<h3>{{$worker_title}}</h3>
{{include file="field_input.tpl" field=$maxloadavg}}
{{include file="field_input.tpl" field=$min_memory}}
{{include file="field_input.tpl" field=$worker_queues}}
{{include file="field_checkbox.tpl" field=$worker_dont_fork}}
{{include file="field_checkbox.tpl" field=$worker_fastlane}}