13 Surveillance à distance des statistiques Zabbix

Overview

It is possible to make some internal metrics of Zabbix server and proxy accessible remotely by another Zabbix instance or a third party tool. This can be useful so that supporters/service providers can monitor their client Zabbix servers/proxies remotely or, in organizations where Zabbix is not the main monitoring tool, that Zabbix internal metrics can be monitored by a third party system in an umbrella-monitoring setup.

Zabbix internal stats are exposed to a configurable set of addresses listed in the new 'StatsAllowedIP' server/proxy parameter. Requests will be accepted only from these addresses.

Items

To configure querying of internal stats on another Zabbix instance, you may use two items:

• zabbix[stats,<ip>,<port>] internal item - for direct remote queries of Zabbix server/proxy. <ip> and <port> are used to identify the target instance.
• zabbix.stats[<ip>,<port>] agent item - for agent-based remote queries of Zabbix server/proxy. <ip> and <port> are used to identify the target instance.

See also: Internal items, Zabbix agent items

The following diagram illustrates the use of either item depending on the context.

• - Server → external Zabbix instance (zabbix[stats,<ip>,<port>])
• - Server → proxy → external Zabbix instance (zabbix[stats,<ip>,<port>])
• - Server → agent → external Zabbix instance (zabbix.stats[<ip>,<port>])
• - Server → proxy → agent → external Zabbix instance (zabbix.stats[<ip>,<port>])

To make sure that the target instance allows querying it by the external instance, list the address of the external instance in the 'StatsAllowedIP' parameter on the target instance.

Exposed metrics

The stats items gather the statistics in bulk and return a JSON, which is the basis for dependent items to get their data from. The following internal metrics are returned by either of the two items:

• zabbix[boottime]
• zabbix[hosts]
• zabbix[items]
• zabbix[items_unsupported]
• zabbix[preprocessing_queue] (server only)
• zabbix[process,<type>,<mode>,<state>] (only process type based statistics)
• zabbix[rcache,<cache>,<mode>]
• zabbix[requiredperformance]
• zabbix[triggers] (server only)
• zabbix[uptime]
• zabbix[vcache,buffer,<mode>] (server only)
• zabbix[vcache,cache,<parameter>]
• zabbix[version]
• zabbix[vmware,buffer,<mode>]
• zabbix[wcache,<cache>,<mode>] ('trends' cache type server only)

Modèles

Des modèles sont disponibles pour la surveillance à distance des métriques internes du serveur Zabbix ou du proxy à partir d'une instance externe :

• Remote Zabbix server
• Remote Zabbix proxy

Notez que pour utiliser un modèle pour la surveillance à distance de plusieurs instances externes, un hôte distinct est requis pour chaque surveillance d'instance externe.

Trapper process

Receiving internal metric requests from an external Zabbix instance is handled by the trapper process that validates the request, gathers the metrics, creates the JSON data buffer and sends the prepared JSON back, for example, from server:

{
         "response": "success",
         "data": {
           "boottime": N,
           "uptime": N,
           "hosts": N,
           "items": N,
           "items_unsupported": N,
           "preprocessing_queue": N,
           "process": {
             "alert manager": {
               "busy": {
                 "avg": N,
                 "max": N,
                 "min": N
               },
               "idle": {
                 "avg": N,
                 "max": N,
                 "min": N
               },
               "count": N
             },
       ...
           },
           "queue": N,
           "rcache": {
             "total": N,
             "free": N,
             "pfree": N,
             "used": N,
             "pused": N
           },
           "requiredperformance": N,
           "triggers": N,
           "uptime": N,
           "vcache": {
             "buffer": {
               "total": N,
               "free": N,
               "pfree": N,
               "used": N,
               "pused": N
             },
             "cache": {
               "requests": N,
               "hits": N,
               "misses": N,
               "mode": N
             }
           },
           "vmware": {
             "total": N,
             "free": N,
             "pfree": N,
             "used": N,
             "pused": N
           },
           "version": "N",
           "wcache": {
             "values": {
               "all": N,
               "float": N,
               "uint": N,
               "str": N,
               "log": N,
               "text": N,
               "not supported": N
             },
             "history": {
               "pfree": N,
               "free": N,
               "total": N,
               "used": N,
               "pused": N
             },
             "index": {
               "pfree": N,
               "free": N,
               "total": N,
               "used": N,
               "pused": N
             },
             "trend": {
               "pfree": N,
               "free": N,
               "total": N,
               "used": N,
               "pused": N
             }
           }
         }
       }

Éléments de la file d'attente interne

Il existe également deux autres éléments permettant spécifiquement d'interroger à distance les statistiques de la file d'attente interne sur une autre instance Zabbix :

• Elément interne zabbix[stats,<ip>,<port>,queue,<from>,<to>] - pour les requêtes de file d'attente internes directes vers le serveur/proxy Zabbix distant
• Elément agent zabbix.stats[<ip>,<port>,queue,<from>,<to>] - pour les requêtes de file d'attente interne basées sur l'agent vers le serveur/proxy Zabbix distant

Voir également : Eléments internes, éléments agent Zabbix