{"id":19975,"date":"2021-08-25T12:45:49","date_gmt":"2021-08-25T12:45:49","guid":{"rendered":"https:\/\/www.centreon.com\/centreon-troubleshooting-series-episode-2-help-mes-actions-sur-les-objets-supervises-ne-sappliquent-pas\/"},"modified":"2021-08-25T12:35:50","modified_gmt":"2021-08-25T12:35:50","slug":"centreon-troubleshooting-series-episode-2-help-mes-actions-sur-les-objets-supervises-ne-sappliquent-pas","status":"publish","type":"post","link":"https:\/\/www.centreon.com\/fr\/centreon-troubleshooting-series-episode-2-help-mes-actions-sur-les-objets-supervises-ne-sappliquent-pas\/","title":{"rendered":"Centreon Troubleshooting Series | Episode 2 : Help! Mes actions sur les objets supervis\u00e9s ne s&rsquo;appliquent pas"},"content":{"rendered":"<p><span style=\"font-weight: 400;\">Lors du <\/span><a href=\"https:\/\/www.centreon.com\/blog\/centreon-troubleshoot-series-episode-1-help-mon-poller-ne-fonctionne-pas\/\" target=\"_blank\" rel=\"noopener\"><span style=\"font-weight: 400;\">premier article<\/span><\/a><span style=\"font-weight: 400;\"> de cette s\u00e9rie qui vise \u00e0 vous donner un maximum de cl\u00e9s pour acc\u00e9l\u00e9rer la r\u00e9solution de probl\u00e8mes techniques, nous vous avions donn\u00e9 les outils et des m\u00e9thodes pour diagnostiquer et identifier la cause des probl\u00e8mes de connexion entre les Pollers et le serveur Central.\u00a0<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Dans cet article, nous aborderons le cas o\u00f9 les actions sur les objets supervis\u00e9s ne sont pas prises en compte dans l\u2019interface. Quoi de plus frustrant que d\u2019acquitter une alarme, planifier une p\u00e9riode de maintenance ou lancer un contr\u00f4le imm\u00e9diat et avoir le sentiment que\u2026 \u201cil ne se passe rien ???\u201d.<\/span><\/p>\n<h2><span style=\"font-weight: 400; color: #84bd00;\">Tour d\u2019horizon du fonctionnement<\/span><\/h2>\n<p><img fetchpriority=\"low\" loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-full wp-image-69460\" src=\"https:\/\/www.centreon.com\/wp-content\/uploads\/2021\/08\/01_Centreon_fonctionnement.png\" alt=\"\" width=\"1598\" height=\"574\" \/><\/p>\n<p><span style=\"font-weight: 400;\">Zoomons sur le fonctionnement des actions lanc\u00e9es par l\u2019utilisateur au travers de l\u2019interface :<\/span><\/p>\n<ol>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Notre utilisateur connect\u00e9 sur l\u2019interface Web de Centreon ex\u00e9cute un acquittement (par exemple).<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Le serveur Web Apache (httpd24-httpd) va alors communiquer avec l\u2019API de <\/span><i><span style=\"font-weight: 400;\">centreon-gorgone<\/span><\/i><span style=\"font-weight: 400;\"> sur le serveur Central et lui envoie la commande \u00e0 ex\u00e9cuter (dans l\u2019exemple pr\u00e9sent : l\u2019acquittement).<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Ensuite ici 2 possibilit\u00e9s : si l\u2019acquittement concerne un \u00e9quipement supervis\u00e9 par le serveur Central alors <\/span><i><span style=\"font-weight: 400;\">centreon-gorgone<\/span><\/i><span style=\"font-weight: 400;\"> \u00e9crit dans un fichier <\/span><b><i>pipe<\/i><\/b> <span style=\"font-weight: 400;\">ouvert par le moteur de supervision <\/span><i><span style=\"font-weight: 400;\">centreon-engine<\/span><\/i><span style=\"font-weight: 400;\">, si l\u2019acquittement concerne un \u00e9quipement supervis\u00e9 par un Poller, alors <\/span><i><span style=\"font-weight: 400;\">centreon-gorgone<\/span><\/i> <span style=\"font-weight: 400;\">du Central communique avec le processus <\/span><i><span style=\"font-weight: 400;\">centreon-gorgone<\/span><\/i><span style=\"font-weight: 400;\"> du Poller qui se charge aussi d\u2019\u00e9crire dans le fichier ouvert par le moteur de supervision <\/span><i><span style=\"font-weight: 400;\">centreon-engine <\/span><\/i><span style=\"font-weight: 400;\">du Poller.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Ce fichier <\/span><i><span style=\"font-weight: 400;\">pipe <\/span><\/i><span style=\"font-weight: 400;\">est lu en continu par le processus <\/span><i><span style=\"font-weight: 400;\">centreon-engine.<\/span><\/i><span style=\"font-weight: 400;\"> D\u00e8s lors qu\u2019une nouvelle commande est \u00e9crite dans le fichier<\/span><b><i>, <\/i><\/b><i><span style=\"font-weight: 400;\">centreon-engine <\/span><\/i><span style=\"font-weight: 400;\">ex\u00e9cute celle-ci et renvoie les informations au Central.<\/span><\/li>\n<\/ol>\n<h2><span style=\"font-weight: 400; color: #84bd00;\">Les commandes externes : k\u00e9zako ?<\/span><\/h2>\n<p><span style=\"font-weight: 400;\">Les commandes externes d\u00e9signent toutes les actions de supervision possiblement ex\u00e9cut\u00e9es par un utilisateur de Centreon au travers de l\u2019interface Web.<\/span><\/p>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>Acquitter (<\/b><b><i>acknowledge)<\/i><\/b><b> une alerte <\/b><span style=\"font-weight: 400;\">permet la prise en compte d\u2019une alerte et arr\u00eate la notification pour \u00e9viter la pollution d\u2019alertes ;<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>Planifier une maintenance (<\/b><b><i>set<\/i><\/b> <b><i>downtime)<\/i><\/b><span style=\"font-weight: 400;\"> permet de ne pas d\u00e9sactiver la notification d\u2019une ressource sur une p\u00e9riode donn\u00e9e ;\u00a0<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>V\u00e9rifier (<\/b><b><i>check<\/i><\/b><b>)<\/b><span style=\"font-weight: 400;\"> permet de lancer un contr\u00f4le imm\u00e9diat sur une ressource et ainsi rafra\u00eechir la supervision.<\/span><\/li>\n<\/ul>\n<p><span style=\"font-weight: 400;\">Il en existe d\u2019autres comme soumettre un r\u00e9sultat <\/span><i><span style=\"font-weight: 400;\">(submit result)<\/span><\/i><span style=\"font-weight: 400;\"> pour les services passifs, vous trouverez toutes les informations relatives \u00e0 la gestion de la supervision <\/span><a href=\"https:\/\/docs.centreon.com\/21.04\/fr\/alerts-notifications\/manage-alerts.html\" target=\"_blank\" rel=\"noopener\"><span style=\"font-weight: 400;\">ici<\/span><\/a><span style=\"font-weight: 400;\">.<\/span><\/p>\n<h2><span style=\"font-weight: 400; color: #84bd00;\">R\u00e9soudre cette anomalie dans Centreon 21.04 : un grand pouvoir entra\u00eene de grandes responsabilit\u00e9s (dixit Spider-Man\u2026)<\/span><\/h2>\n<p><span style=\"font-weight: 400;\">Ce chapitre doit vous dire quelque chose, mais c\u2019est pour \u00eatre s\u00fbr qu\u2019il soit relu \ud83d\ude09<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Nous gardons toujours la m\u00eame plateforme que dans le pr\u00e9c\u00e9dent article :<\/span><\/p>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">un serveur Central embarquant les composants principaux de Centreon ainsi que les instances de Base de donn\u00e9es (IP 192.168.56.125)<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">un Poller (IP 192.168.56.126)<\/span><\/li>\n<\/ul>\n<p><span style=\"font-weight: 400;\">Dans cet article, les commandes pass\u00e9es en SSH sur les serveurs utilisent <\/span><i><span style=\"font-weight: 400;\">root<\/span><\/i><span style=\"font-weight: 400;\">. Comme il est de coutume de le dire dans ces cas-l\u00e0, <\/span><b>n\u2019oubliez pas qu\u2019un grand pouvoir entra\u00eene de grandes responsabilit\u00e9s\u00a0!<\/b><\/p>\n<h3><span style=\"font-weight: 400; color: #84bd00;\">V\u00e9rification 1 : Contr\u00f4ler l\u2019acc\u00e8s \u00e0 l\u2019API de \u201cgorgoned\u201d<\/span><\/h3>\n<p><span style=\"font-weight: 400;\">Comme vu pr\u00e9c\u00e9demment, lorsqu&rsquo; une action de supervision est d\u00e9clench\u00e9e par l\u2019utilisateur depuis l\u2019interface, l\u2019action est transmise par le serveur Web \u00e0 <\/span><i><span style=\"font-weight: 400;\">centreon-gorgone<\/span><\/i><span style=\"font-weight: 400;\"> via son API.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Regardons tout d\u2019abord si l\u2019API du processus <\/span><i><span style=\"font-weight: 400;\">centreon-gorgone (\u2018<\/span><\/i><span style=\"font-weight: 400;\">gorgoned\u2019) \u00e9coute bien sur son port par d\u00e9faut TCP\/8085. Pour cela il est possible d\u2019utiliser les utilitaires <\/span><i><span style=\"font-weight: 400;\">netstat <\/span><\/i><span style=\"font-weight: 400;\">ou <\/span><i><span style=\"font-weight: 400;\">ss <\/span><\/i><span style=\"font-weight: 400;\">:<\/span><\/p>\n<pre><span style=\"font-weight: 400;\">[root@centreon-central ~]# netstat -plant | grep 8085\n<\/span>LISTEN \u00a0 \u00a0 0\u00a0 \u00a0 \u00a0 5\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 *:8085 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 *:* \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 users:((\"gorgone-httpser\",pid=7855,fd=36))<\/pre>\n<p><span style=\"font-weight: 400;\">Dans le cas o\u00f9 cette commande ne renverrait pas de r\u00e9sultat, v\u00e9rifiez que le processus <\/span><i><span style=\"font-weight: 400;\">gorgoned <\/span><\/i><span style=\"font-weight: 400;\">est actuellement d\u00e9marr\u00e9 sur votre serveur Central \u00e0 l\u2019aide de la commande suivante :<\/span><\/p>\n<pre><span style=\"font-weight: 400;\">[root@centreon-central ~]# systemctl status gorgoned<\/span><\/pre>\n<ul>\n<li>\n<pre><span style=\"font-weight: 400;\"> gorgoned.service - Centreon Gorgone<\/span><\/pre>\n<\/li>\n<\/ul>\n<pre><span style=\"font-weight: 400;\">\u00a0\u00a0\u00a0Loaded: loaded (\/etc\/systemd\/system\/gorgoned.service; enabled; vendor preset: disabled)<\/span>\n\n<span style=\"font-weight: 400;\">\u00a0\u00a0\u00a0<\/span><span style=\"font-weight: 400;\">Active: active (running)<\/span><span style=\"font-weight: 400;\"> since jeu. 2021-08-19 15:43:32 CEST; 1min 12s ago<\/span>\n\n<span style=\"font-weight: 400;\">\u00a0Main PID: 14468 (perl)<\/span>\n\n<span style=\"font-weight: 400;\">\u00a0\u00a0\u00a0CGroup: \/system.slice\/gorgoned.service<\/span>\n\n<span style=\"font-weight: 400;\">\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u251c\u250014468 \/usr\/bin\/perl \/usr\/bin\/gorgoned --config=\/etc\/centreon-gorgone\/config.yaml --logfile=\/var\/log\/centreon-gorgone\/gorgoned.log --severity=d...<\/span>\n\n<span style=\"font-weight: 400;\">\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u251c\u250014476 gorgone-nodes<\/span>\n\n<span style=\"font-weight: 400;\">\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u251c\u250014477 gorgone-dbcleaner<\/span>\n\n<span style=\"font-weight: 400;\">\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u251c\u250014478 gorgone-autodiscovery<\/span>\n\n<span style=\"font-weight: 400;\">\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u251c\u250014479 gorgone-cron<\/span>\n\n<span style=\"font-weight: 400;\">\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u251c\u250014480 gorgone-engine<\/span>\n\n<span style=\"font-weight: 400;\">\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u251c\u250014511 gorgone-statistics<\/span>\n\n<span style=\"font-weight: 400;\">\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u251c\u250014512 gorgone-action<\/span>\n\n<span style=\"font-weight: 400;\">\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u251c\u250014513 <\/span><span style=\"font-weight: 400;\">gorgone-httpserver<\/span>\n\n<span style=\"font-weight: 400;\">\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u251c\u250014514 gorgone-legacycmd<\/span>\n\n<span style=\"font-weight: 400;\">\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u251c\u250014536 gorgone-proxy<\/span>\n\n<span style=\"font-weight: 400;\">\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u251c\u250014537 gorgone-proxy<\/span>\n\n<span style=\"font-weight: 400;\">\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u251c\u250014544 gorgone-proxy<\/span>\n\n<span style=\"font-weight: 400;\">\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u251c\u250014545 gorgone-proxy<\/span>\n\n<span style=\"font-weight: 400;\">\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u2514\u250014558 gorgone-proxy<\/span>\n\n<span style=\"font-weight: 400;\">ao\u00fbt 19 15:43:32 centreon-central systemd[1]: Started Centreon Gorgone.<\/span><\/pre>\n<p><span style=\"font-weight: 400;\">Cette commande nous confirme que le processus <\/span><i><span style=\"font-weight: 400;\">gorgoned<\/span><\/i><span style=\"font-weight: 400;\"> est bien <\/span><i><span style=\"font-weight: 400;\">active\/running<\/span><\/i><span style=\"font-weight: 400;\">. Dans la liste des processus enfant, <\/span><i><span style=\"font-weight: 400;\">gorgone-httpserver<\/span><\/i> <span style=\"font-weight: 400;\">est le processus relatif \u00e0 l\u2019API de <\/span><i><span style=\"font-weight: 400;\">centreon-gorgone<\/span><\/i><span style=\"font-weight: 400;\">.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Si le processus n\u2019est pas d\u00e9marr\u00e9, vous pouvez tout d\u2019abord essayer de le red\u00e9marrer avec la commande suivante :<\/span><\/p>\n<pre><span style=\"font-weight: 400;\">[root@centreon-central ~]# systemctl restart gorgoned<\/span><\/pre>\n<p><span style=\"font-weight: 400;\">Et si le processus n\u2019est toujours pas d\u00e9marr\u00e9, il sera n\u00e9cessaire d\u2019aller regarder le fichier log de <\/span><i><span style=\"font-weight: 400;\">centreon-gorgone<\/span><\/i><span style=\"font-weight: 400;\"> dans <\/span><b>\/var\/log\/centreon-gorgone\/centreon-gorgone.log<\/b><span style=\"font-weight: 400;\">.\u00a0<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Les erreurs les plus \u201cfr\u00e9quentes\u201d sont g\u00e9n\u00e9ralement dues aux causes suivantes :<\/span><\/p>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">SElinux en mode <\/span><b>ENFORCING <\/b><span style=\"font-weight: 400;\">;<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Droits sur les r\u00e9pertoires et les fichiers ;<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">D\u00e9pendance ou librairie manquante\u2026<\/span><\/li>\n<\/ul>\n<h3><span style=\"font-weight: 400; color: #84bd00;\">V\u00e9rification 2 : Sur notre Central, contr\u00f4ler le fichier pipe<\/span><\/h3>\n<p><span style=\"font-weight: 400;\">V\u00e9rifions qu\u2019une commande qui doit \u00eatre ex\u00e9cut\u00e9e par le Central peut l\u2019\u00eatre.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Pr\u00e9c\u00e9demment nous avons vu que <\/span><i><span style=\"font-weight: 400;\">centreon-gorgone<\/span><\/i><span style=\"font-weight: 400;\"> \u00e9crit les commandes relatives aux actions de supervision dans un fichier <\/span><i><span style=\"font-weight: 400;\">pipe <\/span><\/i><span style=\"font-weight: 400;\">qui est lu en continu par le moteur de supervision <\/span><i><span style=\"font-weight: 400;\">centreon-engine<\/span><\/i><span style=\"font-weight: 400;\">.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">V\u00e9rifions l\u2019existence de ce fichier \u00e0 l\u2019aide de la commande :<\/span><\/p>\n<pre><span style=\"font-weight: 400;\">[root@centreon-central ~]# ll \/var\/lib\/centreon-engine\/rw\/centengine.cmd<\/span>\n\n<span style=\"font-weight: 400;\">prw-rw----. 1 centreon-engine centreon-engine 0 18 ao\u00fbt\u00a0 18:20 \/var\/lib\/centreon-engine\/rw\/centengine.cmd<\/span><\/pre>\n<p><span style=\"font-weight: 400;\">Ce fichier doit avoir les droits correspondants rw-rw&#8212;-, appartenir \u00e0 l\u2019utilisateur <\/span><i><span style=\"font-weight: 400;\">centreon-engine<\/span><\/i><span style=\"font-weight: 400;\">, au groupe <\/span><i><span style=\"font-weight: 400;\">centreon-engine<\/span><\/i><span style=\"font-weight: 400;\"> et \u00eatre un fichier pipe ou <\/span><b>named pipe<\/b><span style=\"font-weight: 400;\"> identifiable par le premier caract\u00e8re <\/span><b>p <\/b><span style=\"font-weight: 400;\">\u00a0dans la cha\u00eene des droits.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Ce fichier est ce qu\u2019on appelle un <\/span><i><span style=\"font-weight: 400;\">FIFO <\/span><\/i><span style=\"font-weight: 400;\">(<\/span><i><span style=\"font-weight: 400;\">First In\/First Out)<\/span><\/i><span style=\"font-weight: 400;\">: les \u00e9critures effectu\u00e9es dans ce fichier sont instantan\u00e9ment consomm\u00e9es par <\/span><i><span style=\"font-weight: 400;\">centreon-engine.<\/span><\/i><\/p>\n<p><span style=\"font-weight: 400;\">Dans certains cas, le format de ce fichier ou les droits de celui-ci peuvent \u00eatre incorrects. Un red\u00e9marrage du moteur de supervision est alors requis pour que le fichier soit correctement recr\u00e9\u00e9:<\/span><\/p>\n<pre><span style=\"font-weight: 400;\">[root@centreon-central ~]# systemctl restart centengine<\/span><\/pre>\n<p><span style=\"font-weight: 400;\">Ce fichier est cr\u00e9\u00e9 par un <\/span><i><span style=\"font-weight: 400;\">module externe<\/span><\/i><span style=\"font-weight: 400;\"> (exactement comme le cbmod.so): externalcmd.so. Si le fichier n\u2019est pas pr\u00e9sent, vous pouvez v\u00e9rifier que le module est bien charg\u00e9 par <\/span><i><span style=\"font-weight: 400;\">centreon-engine<\/span><\/i><span style=\"font-weight: 400;\"> au d\u00e9marrage de celui-ci dans le fichier de log <\/span><b>\/var\/log\/centreon-engine\/centengine.log<\/b><span style=\"font-weight: 400;\">:<\/span><\/p>\n<pre><span style=\"font-weight: 400;\">[root@centreon-central ~]# grep -RIri external \/var\/log\/centreon-engine\/centengine.log\u00a0<\/span>\n\n<span style=\"font-weight: 400;\">[1629366622] [29381] Event broker module '\/usr\/lib64\/centreon-engine\/externalcmd.so' deinitialized successfully<\/span>\n\n<span style=\"font-weight: 400;\">[1629366622] [24389] Event broker module '\/usr\/lib64\/centreon-engine\/externalcmd.so' initialized successfully<\/span>\n\n<span style=\"font-weight: 400;\">De m\u00eame vous pouvez v\u00e9rifier sa pr\u00e9sence dans la configuration de <\/span><i><span style=\"font-weight: 400;\">centreon-engine<\/span><\/i><span style=\"font-weight: 400;\">, ainsi le bon chargement du module :<\/span>\n\n<span style=\"font-weight: 400;\">[root@centreon-central ~]# grep -RIri external \/etc\/centreon-engine\/centengine.cfg\u00a0<\/span>\n\n<span style=\"font-weight: 400;\">broker_module=\/usr\/lib64\/centreon-engine\/externalcmd.so<\/span>\n\n<span style=\"font-weight: 400;\">check_external_commands=1<\/span><\/pre>\n<p><span style=\"font-weight: 400;\">Dans le cas o\u00f9 vous ne voyez pas le module charg\u00e9 ou pr\u00e9sent dans la configuration de <\/span><i><span style=\"font-weight: 400;\">centreon-engine<\/span><\/i><span style=\"font-weight: 400;\">, vous pouvez v\u00e9rifier la configuration du collecteur dans le menu <\/span><b>Configuration\u00a0 &gt;\u00a0 Collecteurs\u00a0 &gt;\u00a0 Configuration du moteur de collecte,<\/b><span style=\"font-weight: 400;\"> en cliquant sur la configuration du Central<\/span> <span style=\"font-weight: 400;\">et en allant dans l\u2019onglet <\/span><b>Donn\u00e9es<\/b><span style=\"font-weight: 400;\">.\u00a0<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Cette configuration doit inclure une directive qui pointe vers :<\/span><\/p>\n<p><b>\/usr\/lib64\/centreon-engine\/externalcmd.so:<\/b><\/p>\n<p><img fetchpriority=\"low\" loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-full wp-image-69454\" src=\"https:\/\/www.centreon.com\/wp-content\/uploads\/2021\/08\/02_Centreon_configuration.png\" alt=\"\" width=\"1508\" height=\"474\" \/><\/p>\n<p><span style=\"font-weight: 400;\">Dans le cas o\u00f9 cette configuration serait manquante, ajoutez celle-ci en vous r\u00e9f\u00e9rant \u00e0 la capture d\u2019\u00e9cran ci-dessus. Sauvegardez le formulaire puis exportez la nouvelle configuration du Central en choisissant la m\u00e9thode de red\u00e9marrage \u201cRed\u00e9marrer\u201d :<\/span><\/p>\n<p><img fetchpriority=\"low\" loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-full wp-image-69448\" src=\"https:\/\/www.centreon.com\/wp-content\/uploads\/2021\/08\/03_Centreon_redemarrer.png\" alt=\"\" width=\"1389\" height=\"507\" \/><\/p>\n<p><span style=\"font-weight: 400;\">Pour tester que tout fonctionne correctement, vous pouvez, par exemple, lancer un contr\u00f4le imm\u00e9diat depuis l\u2019interface de Centreon pour un service li\u00e9 \u00e0 un h\u00f4te supervis\u00e9 par votre serveur Central.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">En parall\u00e8le, consultez les fichiers de log <\/span><b>\/var\/log\/centreon-gorgone\/centreon-gorgone.log <\/b><span style=\"font-weight: 400;\">et <\/span><b>\/var\/log\/centreon-engine\/centengine.log<\/b><span style=\"font-weight: 400;\">, l\u2019action en question devrait appara\u00eetre comme ceci :<\/span><\/p>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Dans <\/span><b>\/var\/log\/centreon-gorgone\/centreon-gorgone.log<\/b><span style=\"font-weight: 400;\">:\u00a0<\/span><\/li>\n<\/ul>\n<pre><span style=\"font-weight: 400;\">2021-08-19 17:17:32 - INFO - [engine] Processing external command '[1629386252] SCHEDULE_FORCED_SVC_CHECK;HQ-FW-Inet;Ping;1629386252'<\/span><\/pre>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Dans <\/span><b>\/var\/log\/centreon-engine\/centengine.log:<\/b><\/li>\n<\/ul>\n<pre><span style=\"font-weight: 400;\">[1629386253] [24389] EXTERNAL COMMAND: SCHEDULE_FORCED_SVC_CHECK;HQ-FW-Inet;Ping;1629386252<\/span><\/pre>\n<h3><span style=\"font-weight: 400; color: #84bd00;\">V\u00e9rification 3 : Sur notre Poller, contr\u00f4ler la communication Gorgone<\/span><\/h3>\n<p><span style=\"font-weight: 400;\">Maintenant que le bon fonctionnement des actions de supervision est valid\u00e9 sur notre serveur Central, v\u00e9rifions que ces m\u00eames actions sont aussi r\u00e9alisables sur un \u00e9quipement supervis\u00e9 par notre Poller.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Lorsque la supervision est r\u00e9alis\u00e9e depuis un Poller, le serveur <\/span><i><span style=\"font-weight: 400;\">Apache <\/span><\/i><span style=\"font-weight: 400;\">ne communique pas directement avec le Poller, il transf\u00e8re tout d\u2019abord la commande au processus <\/span><i><span style=\"font-weight: 400;\">gorgone <\/span><\/i><span style=\"font-weight: 400;\">du Central. Celui-ci s\u2019occupe alors de r\u00e9partir puis de transf\u00e9rer les commandes sur le(s) Poller(s) en charge de l\u2019h\u00f4te sur lequel on souhaite effectuer l\u2019action.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">V\u00e9rifions d\u2019abord que la communication des processus <\/span><i><span style=\"font-weight: 400;\">centreon-gorgone <\/span><\/i><span style=\"font-weight: 400;\">de notre Central avec notre Poller au niveau Gorgone est effective.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Pour cela, assurons-nous que la communication ZMQ\/TCP5556 est \u00e9tablie entre les 2 serveurs (le Poller joue le r\u00f4le de <\/span><i><span style=\"font-weight: 400;\">serveur) <\/span><\/i><span style=\"font-weight: 400;\">: il doit \u00e9couter sur le port en question, le Central joue le r\u00f4le de <\/span><i><span style=\"font-weight: 400;\">client<\/span><\/i><span style=\"font-weight: 400;\"> et s\u2019y connecte) :<\/span><\/p>\n<pre><span style=\"font-weight: 400;\">[root@centreon-poller ~]# ss -plantu | grep 5556<\/span>\n\n<span style=\"font-weight: 400;\">tcp\u00a0 \u00a0 LISTEN \u00a0 \u00a0 0\u00a0 \u00a0 \u00a0 100 \u00a0 \u00a0 \u00a0 *:5556\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 *:* \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 users:((\"gorgone-action\",pid=1991,fd=36),(\"gorgone-engine\",pid=1990,fd=36),(\"gorgone-dbclean\",pid=1989,fd=36),(\"perl\",pid=1976,fd=36))<\/span>\n\n<span style=\"font-weight: 400;\">tcp\u00a0 \u00a0 <\/span><span style=\"font-weight: 400;\">ESTAB<\/span><span style=\"font-weight: 400;\">\u00a0 \u00a0 \u00a0 0\u00a0 \u00a0 \u00a0 0\u00a0 \u00a0 \u00a0 <\/span><span style=\"font-weight: 400;\">192.168.56.126:5556<\/span><span style=\"font-weight: 400;\"> \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 <\/span><span style=\"font-weight: 400;\">192.168.56.125:45960<\/span><span style=\"font-weight: 400;\"> \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 users:((\"perl\",pid=1976,fd=41))\u00a0<\/span><\/pre>\n<p><span style=\"font-weight: 400;\">Si dans ce cas vous obtenez un TIME-WAIT ou que vous ne voyez pas de socket ouvert sur le port TCP\/5556 du Poller, v\u00e9rifiez les logs <\/span><b>\/var\/log\/centreon-gorgone\/gorgoned.log<\/b><span style=\"font-weight: 400;\"> sur ce dernier :<\/span><\/p>\n<pre><span style=\"font-weight: 400;\">[root@centreon-poller ~]# tailf \/var\/log\/centreon-gorgone\/gorgoned.log<\/span>\n\n<span style=\"font-weight: 400;\">2021-08-19 15:09:45 - ERROR - [core] Client pubkey is not authorized. Thumbprint is 'XzVJ5kbmfxYqktqKLLTF62fbf3_qdHn1fH7HLtPj_a8'<\/span><\/pre>\n<p><span style=\"font-weight: 400;\">Dans l\u2019exemple pr\u00e9c\u00e9dent, la communication ne peut s\u2019\u00e9tablir en raison d\u2019un probl\u00e8me d\u2019authentification du <\/span><i><span style=\"font-weight: 400;\">client<\/span><\/i><span style=\"font-weight: 400;\"> (le serveur Central). Le <\/span><i><span style=\"font-weight: 400;\">thumbprint<\/span><\/i><span style=\"font-weight: 400;\"> du Central n\u2019est pas dans la liste de confiance des <\/span><i><span style=\"font-weight: 400;\">clients<\/span><\/i><span style=\"font-weight: 400;\"> du Poller.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Le plus simple dans ce cas est de r\u00e9cup\u00e9rer de nouveau la configuration <\/span><b>gorgone<\/b><span style=\"font-weight: 400;\"> de votre Poller en vous aidant de la documentation officielle en suivant <\/span><a href=\"https:\/\/docs.centreon.com\/current\/fr\/monitoring\/monitoring-servers\/add-a-poller-to-configuration.html#display-gorgone-configuration\" target=\"_blank\" rel=\"noopener\"><span style=\"font-weight: 400;\">ce lien<\/span><\/a><span style=\"font-weight: 400;\">.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Vous pouvez tout \u00e0 fait vous r\u00e9f\u00e9rer \u00e0 la \u201cV\u00e9rification 3\u201d du <\/span><a href=\"https:\/\/www.centreon.com\/blog\/centreon-troubleshoot-series-episode-1-help-mon-poller-ne-fonctionne-pas\/\" target=\"_blank\" rel=\"noopener\"><span style=\"font-weight: 400;\">pr\u00e9c\u00e9dent article<\/span><\/a><span style=\"font-weight: 400;\"> de cette s\u00e9rie.\u00a0<\/span><\/p>\n<p><span style=\"font-weight: 400;\">(tout est li\u00e9 dans le <\/span><i><span style=\"font-weight: 400;\">Centreon<\/span><\/i> <i><span style=\"font-weight: 400;\">Cinematic Universe<\/span><\/i><span style=\"font-weight: 400;\">)<\/span><\/p>\n<h3><span style=\"font-weight: 400; color: #84bd00;\">V\u00e9rification 4 : Sur notre Poller, contr\u00f4ler le fichier pipe<\/span><\/h3>\n<p><span style=\"font-weight: 400;\">Tout comme le serveur Central, le Poller doit aussi charger le module externe lui permettant de lire et d\u2019ex\u00e9cuter les commandes externes, nous pouvons donc nous baser sur les m\u00eames points de contr\u00f4le que pour le serveur Central :<\/span><\/p>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">V\u00e9rifier que le module externalcmd.so est bien charg\u00e9 au d\u00e9marrage ;<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">V\u00e9rifier que le module est bien pr\u00e9sent dans la configuration ;<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Dans le cas contraire, l\u2019ajouter dans la configuration de <\/span><i><span style=\"font-weight: 400;\">centreon-engine <\/span><\/i><span style=\"font-weight: 400;\">puis exporter la configuration avec un \u201cred\u00e9marrage\u201d de votre Poller ;<\/span><\/li>\n<\/ul>\n<h3><span style=\"font-weight: 400; color: #84bd00;\">S\u2019assurer que toute la cha\u00eene fonctionne correctement<\/span><\/h3>\n<p><span style=\"font-weight: 400;\">Sur l\u2019interface de Centreon, lan\u00e7ons maintenant un contr\u00f4le imm\u00e9diat sur une ressource supervis\u00e9e par notre Poller afin de valider la bonne ex\u00e9cution de l\u2019action de supervision :<\/span><\/p>\n<p><img fetchpriority=\"low\" loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-full wp-image-69466\" src=\"https:\/\/www.centreon.com\/wp-content\/uploads\/2021\/08\/04_Centreon_ressources.png\" alt=\"\" width=\"1649\" height=\"284\" \/><\/p>\n<p><span style=\"font-weight: 400;\">Comme pr\u00e9c\u00e9demment, en consultant le fichier de log <\/span><b>\/var\/log\/centreon-gorgone\/centreon-gorgone.log<\/b><span style=\"font-weight: 400;\"> sur notre Central, nous devrions voir l\u2019action en question appara\u00eetre :<\/span><\/p>\n<pre><span style=\"font-weight: 400;\">[root@centreon-central ~]# tailf \/var\/log\/centreon-gorgone\/gorgoned.log<\/span>\n\n<span style=\"font-weight: 400;\">2021-08-19 15:43:52 - INFO - <\/span><span style=\"font-weight: 400;\">[legacycmd] Handling command 'EXTERNALCMD', Target: '3',<\/span><span style=\"font-weight: 400;\"> Parameters: '[1629388009] SCHEDULE_FORCED_SVC_CHECK;HQ-FW-Inet;Ping;1629388009'<\/span><\/pre>\n<p><span style=\"font-weight: 400;\">Cette fois-ci, on peut voir que le message est l\u00e9g\u00e8rement diff\u00e9rent lorsque c\u2019est un Poller qui contr\u00f4le la ressource: l&rsquo;occurrence <\/span><b>Target: \u20183\u2019<\/b><span style=\"font-weight: 400;\"> correspond \u00e0 l\u2019ID du Poller cible, celui \u00e0 qui le processus <\/span><i><span style=\"font-weight: 400;\">gorgone<\/span><\/i><span style=\"font-weight: 400;\"> du Central va transf\u00e9rer la requ\u00eate.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">C\u00f4t\u00e9 Poller, vous retrouvez notre commande externe dans les logs de <\/span><i><span style=\"font-weight: 400;\">gorgone <\/span><\/i><span style=\"font-weight: 400;\">:<\/span><\/p>\n<pre><span style=\"font-weight: 400;\">[root@centreon-poller ~]# tailf \/var\/log\/centreon-gorgone\/gorgoned.log<\/span>\n\n<span style=\"font-weight: 400;\">2021-08-19 15:44:01 - INFO - [engine] Processing external command '[1629388009] SCHEDULE_FORCED_SVC_CHECK;HQ-FW-Inet;Ping;1629388009'<\/span><\/pre>\n<p><span style=\"font-weight: 400;\">V\u00e9rifions enfin le fichier de log de <\/span><i><span style=\"font-weight: 400;\">centreon-engine<\/span><\/i><span style=\"font-weight: 400;\"> sur notre Poller :<\/span><\/p>\n<pre><span style=\"font-weight: 400;\">[root@centreon-poller ~]# tailf \/var\/lib\/centreon-engine\/centengine.log<\/span>\n<span style=\"font-weight: 400;\">[1629388012] [2032] EXTERNAL COMMAND: SCHEDULE_FORCED_SVC_CHECK;SV-WINDO-PAR;Ping;1629388009<\/span><\/pre>\n<h2><span style=\"font-weight: 400; color: #84bd00;\">Mission accomplie !<\/span><\/h2>\n<p><span style=\"font-weight: 400;\">Vous avez maintenant les principales cl\u00e9s pour comprendre et diagnostiquer au mieux les actions de supervision !<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Si cela n\u2019est toujours pas suffisant, vous pouvez augmenter la verbosit\u00e9 du journal de <\/span><i><span style=\"font-weight: 400;\">centreon-gorgone<\/span><\/i><span style=\"font-weight: 400;\"> en ajustant le fichier <\/span><b>\/etc\/sysconfig\/gorgoned<\/b><span style=\"font-weight: 400;\"> afin de modifier l\u2019option<\/span><i><span style=\"font-weight: 400;\"> &#8211;severity=info<\/span><\/i><span style=\"font-weight: 400;\"> pour <\/span><i><span style=\"font-weight: 400;\">&#8211;severity=debug<\/span><\/i><span style=\"font-weight: 400;\">. Cette option peut \u00eatre d\u00e9finie sur les diff\u00e9rents processus <\/span><i><span style=\"font-weight: 400;\">centreon-gorgone<\/span><\/i><span style=\"font-weight: 400;\">, aussi bien sur le serveur Central que sur les Pollers.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Il sera ensuite n\u00e9cessaire de recharger la configuration de <\/span><i><span style=\"font-weight: 400;\">systemd <\/span><\/i><span style=\"font-weight: 400;\">puis de red\u00e9marrer <\/span><i><span style=\"font-weight: 400;\">centreon-gorgone<\/span><\/i><span style=\"font-weight: 400;\">:<\/span><\/p>\n<pre><span style=\"font-weight: 400;\">[root@centreon-poller ~]# systemctl daemon-reload<\/span>\n\n<span style=\"font-weight: 400;\">[root@centreon-poller ~]# systemctl restart gorgoned<\/span><\/pre>\n<p><span style=\"font-weight: 400;\">N\u2019oubliez pas de d\u00e9sactiver le <\/span><i><span style=\"font-weight: 400;\">debug<\/span><\/i><span style=\"font-weight: 400;\"> apr\u00e8s la fin de votre diagnostic ;-))<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Enfin, n\u2019h\u00e9sitez pas \u00e0 venir poser vos questions sur notre <\/span><a href=\"https:\/\/www.centreon.com\/slack-register\/\" target=\"_blank\" rel=\"noopener\"><span style=\"font-weight: 400;\">Slack d\u00e9di\u00e9 \u00e0 la communaut\u00e9 Centreon<\/span><\/a><span style=\"font-weight: 400;\">. Nous serons heureux de vous aider !<\/span><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Lors du premier article de cette s\u00e9rie qui vise \u00e0 vous donner un maximum de cl\u00e9s pour acc\u00e9l\u00e9rer la r\u00e9solution de probl\u00e8mes techniques, nous vous avions donn\u00e9 les outils et des m\u00e9thodes pour diagnostiquer et&nbsp;&#8230;<\/p>\n","protected":false},"author":1,"featured_media":5840,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"post-type":[100],"theme":[],"class_list":["post-19975","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","post-type-tutoriels"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v26.6 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Centreon Troubleshooting Series | Episode 2 : Help! 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