Zabbix Documentation 1.8

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pt:manual:processes

3 Processos do Zabbix

3.1 Logging

For logging configuration of Zabbix daemons “LogFile” configuration parameter is used. If this parameter is left empty (LogFile=), syslog logging facilities are used. All Zabbix daemons on Unix-like platforms log their messages from “Daemon” environment. The mapping between Zabbix logging levels and syslog levels is as follows:

Zabbix log levelsyslog log levelComments
0 - empty
(LOG_LEVEL_EMPTY)
syslog is not used. All messages are skipped.
1 - critical information
(LOG_LEVEL_CRIT)
critical conditions
(LOG_CRIT)
2 - error information
(LOG_LEVEL_ERR)
error conditions
(LOG_ERR)
3 - warnings
(LOG_LEVEL_WARNING)
warning conditions
(LOG_WARNING)
4 - for debugging
(LOG_LEVEL_DEBUG)
debug-level messages
(LOG_DEBUG)

For syslog configuration consult the corresponding literature.


Zabbix agent under Windows uses Event Log if “LogFile” configuration parameter is provided empty. Mapping between Zabbix log levels (messages of corresponding type) and Windows Event Log entries type is provided below:

Zabbix log levelWindows Event Log entry typeComments
0 - empty
(LOG_LEVEL_EMPTY)
Event Log is not used. All messages are skipped.
1 - critical information
(LOG_LEVEL_CRIT)
2 - error information
(LOG_LEVEL_ERR)
EVENTLOG_ERROR_TYPE Error
3 - warnings
(LOG_LEVEL_WARNING)
EVENTLOG_WARNING_TYPE Warning
4 - for debugging
(LOG_LEVEL_DEBUG)
EVENTLOG_INFORMATION_TYPE Information

3.2 Individual processes

3.3 Zabbix Server

Zabbix Server is a central process of Zabbix software. Zabbix Server can be started by executing:

shell> cd sbin
shell> ./zabbix_server

Since version 1.8.3, Zabbix server has improved unreachable host handling. If a poller finds in the item queue an item from an unreachable host, it takes the item and marks the host as being checked currently. Other pollers do not take items from a host, which is marked like that. As a result, unreachable host will be checked by at most one poller at a time. Also, at most one item for an unreachable host will be tried at a time. Given that, it was decided to remove specific poller class for unreachable hosts.

Zabbix Server runs as a daemon process. Zabbix Server accepts the following command line parameters:

-c --config <file> specify configuration file, default is /etc/zabbix/zabbix_server.conf
-h --help give this help
-v --version display version number

In order to get this help run:

shell> zabbix_server -h

Example of command line parameters:

shell> zabbix_server -c /usr/local/etc/zabbix_server.conf
shell> zabbix_server --help
shell> zabbix_server -v

The configuration file contains parameters for zabbix_server. The file must exist and it should have read permissions for user 'zabbix'. Supported parameters:

ParameterMandatoryRangeDefaultDescription
AlertScriptsPath no /home/zabbix/bin/ Location of custom alert scripts
CacheSize no 128K-1G 8M Size of configuration cache, in bytes.
Shared memory size for storing hosts and items data.
CacheUpdateFrequency no 1-3600 60 How often Zabbix will perform update of configuration cache, in seconds.
DBHost no localhost Database host name.
If set to localhost, socket is used for MySQL.
DBName yes Database name.
For SQLite3 path to database file must be provided. DBUser and DBPassword are ignored.
DBPassword no Database password. Ignored for SQLite.
Comment this line if no password is used.
DBPort no 1024-65535 3306 Database port when not using local socket. Ignored for SQLite.
DBSocket no /tmp/mysql.sock Path to MySQL socket.
DBUser no Database user. Ignored for SQLite.
DebugLevel no 0-4 3 Specifies debug level
0 - no debug
1 - critical information
2 - error information
3 - warnings
4 - for debugging (produces lots of information)
DisableHousekeeping no 0-1 0 If set to 1, disables housekeeping.
ExternalScripts no /etc/zabbix/externalscripts Location of external scripts
Fping6Location no /usr/sbin/fping6 Location of fping6.
Make sure that fping6 binary has root ownership and SUID flag set.
Make empty (“Fping6Location=”) if your fping utility is capable to process IPv6 addresses.
FpingLocation no /usr/sbin/fping Location of fping.
Make sure that fping binary has root ownership and SUID flag set!
HistoryCacheSize no 128K-1G 8M Size of history cache, in bytes.
Shared memory size for storing history data.
HistoryTextCacheSize no 128K-1G 16M Size of text history cache, in bytes.
Shared memory size for storing character, text or log history data.
HousekeepingFrequency no 1-24 1 How often Zabbix will perform housekeeping procedure (in hours).
Housekeeping is removing unnecessary information from history, alert, and alarms tables.
If PostgreSQL is used, suggested value is 24, as it performs VACUUM.
MaxHousekeeperDelete no 0-1000000 500 No more than 'MaxHousekeeperDelete' rows (corresponding to [tablename], [field], [value]) will be deleted per one task in one housekeeping cycle.
SQLite3 does not use this parameter, deletes all corresponding rows without a limit.
If set to 0 then no limit is used at all. In this case you must know what you are doing!
This option is supported in version 1.8.2 and higher.
Include no You may include individual files or all files in a directory in the configuration file.
ListenIP no 0.0.0.0 List of comma delimited IP addresses that the trapper should listen on.
Trapper will listen on all network interfaces if this parameter is missing.
Multiple IP addresses are supported in version 1.8.3 and higher.
ListenPort no 1024-32767 10051 Listen port for trapper.
LogFileSize no 0-1024 1 Maximum size of log file in MB.
0 - disable automatic log rotation.
LogFile no Name of log file.
LogSlowQueries no 0-3600000 0 If a query takes longer than this many milliseconds, the query is logged to the log file.
0 - disable log slow queries
This option is supported in version 1.8.2 and higher.
NodeID no 0-999 0 Unique NodeID in distributed setup.
0 - standalone server
NodeNoEvents no 0-1 0 If set to '1' local events won't be sent to master node.
This won't impact ability of this node to propagate events from its child nodes.
NodeNoHistory no 0-1 0 If set to '1' local history won't be sent to master node.
This won't impact ability of this node to propagate history from its child nodes.
PidFile no /tmp/zabbix_server.pid Name of PID file.
ProxyConfigFrequency no 1-604800 3600 How often Zabbix Server sends configuration data to a Zabbix Proxy in seconds. Used only for proxies in a passive mode.
This option is supported in version 1.8.3 and higher.
ProxyDataFrequency no 1-3600 1 How often Zabbix Server requests history data from a Zabbix Proxy in seconds. Used only for proxies in a passive mode.
This option is supported in version 1.8.3 and higher.
SSHKeyLocation no Location of public keys for SSH checks
SenderFrequency no 5-3600 30 How often Zabbix will try to send unsent alerts (in seconds).
SourceIP no Source IP address for outgoing connections.
StartDBSyncers no 1-64 4 Number of pre-forked instances of DB Syncers.
This option is supported in version 1.8.3 and higher.
StartDiscoverers no 0-255 1 Number of pre-forked instances of discoverers.
StartHTTPPollers no 0-255 1 Number of pre-forked instances of HTTP pollers.
StartIPMIPollers no 0-255 0 Number of pre-forked instances of IPMI pollers.
StartPingers no 0-255 1 Number of pre-forked instances of ICMP pingers.
StartPollersUnreachable no 0-255 1 Number of pre-forked instances of pollers for unreachable hosts.
This option is missing in version 1.8.3.
StartPollers no 0-255 5 Number of pre-forked instances of pollers.
StartProxyPollers no 0-255 1 Number of pre-forked instances of pollers for passive proxies.
This option is supported in version 1.8.3 and higher.
StartTrappers no 0-255 5 Number of pre-forked instances of trappers
Timeout no 1-30 3 Specifies how long we wait for agent, SNMP device or external check (in seconds).
TmpDir no /tmp Temporary directory.
TrapperTimeout no 1-300 300 Specifies how many seconds trapper may spend processing new data.
TrendCacheSize no 128K-1G 4M Size of trend cache, in bytes.
Shared memory size for storing trends data.
UnavailableDelay no 1-3600 60 How often host is checked for availability during the unavailability period, in seconds.
UnreachableDelay no 1-3600 15 How often host is checked for availability during the unreachability period, in seconds.
UnreachablePeriod no 1-3600 45 After how many seconds of unreachability treat a host as unavailable.
2010/07/13 14:33

3.4 Zabbix Proxy

Zabbix Proxy is a process which collects performance and availability data from one or more monitored devices and sends the information to a Zabbix Server. Zabbix Proxy can be started by:

shell> cd sbin
shell> ./zabbix_proxy

Zabbix Proxy runs as a daemon process. Zabbix Proxy accepts the following command line parameters:

  -c --config <file> specify configuration file, default is /etc/zabbix/zabbix_proxy.conf
  -h --help give this help
  -v --version display version number

In order to get this help run:

shell> zabbix_proxy -h

Example of command line parameters:

shell> zabbix_proxy -c /usr/local/etc/zabbix_proxy.conf
shell> zabbix_proxy --help
shell> zabbix_proxy -v

The configuration file contains parameters for zabbix_proxy. The file must exist and it should have read permissions for user 'zabbix'. Supported parameters:

ParameterMandatoryRangeDefaultDescription
CacheSize no 128K-1G 8M Size of configuration cache, in bytes.
Shared memory size, for storing hosts and items data.
CacheUpdateFrequency no 1-3600 60 How often Zabbix will perform update of configuration cache, in seconds.
For a proxy in the passive mode this parameter will be ignored.
ConfigFrequency no 1-604800 3600 How often proxy retrieves configuration data from Zabbix Server in seconds.
For a proxy in the passive mode this parameter will be ignored.
DBHost no localhost Database host name.
If set to localhost, socket is used for MySQL.
DBName yes Database name.
For SQLite3 path to database file must be provided. DBUser and DBPassword are ignored.
DBPassword no Database password. Ignored for SQLite.
Comment this line if no password is used.
DBSocket no 3306 Path to MySQL socket.
Database port when not using local socket. Ignored for SQLite.
DBUser Database user. Ignored for SQLite.
DataSenderFrequency no 1-3600 1 Proxy will send collected data to the Server every N seconds.
DebugLevel no 0-4 3 Specifies debug level
0 - no debug
1 - critical information
2 - error information
3 - warnings
4 - for debugging (produces lots of information)
ExternalScripts no /etc/zabbix/externalscripts Location of external scripts
Fping6Location no /usr/sbin/fping6 Location of fping6.
Make sure that fping6 binary has root ownership and SUID flag set.
Make empty (“Fping6Location=”) if your fping utility is capable to process IPv6 addresses.
FpingLocation no /usr/sbin/fping Location of fping.
Make sure that fping binary has root ownership and SUID flag set!
HeartbeatFrequency no 0-3600 60 Frequency of heartbeat messages in seconds.
Used for monitoring availability of Proxy on server side.
0 - heartbeat messages disabled.
For a proxy in the passive mode this parameter will be ignored.
HistoryCacheSize no 128K-1G 8M Size of history cache, in bytes.
Shared memory size for storing history data.
HistoryTextCacheSize no 128K-1G 16M Size of text history cache, in bytes.
Shared memory size for storing character, text or log history data.
Hostname no Unique Proxy name. Make sure the Proxy name is known to the server!
System hostname is used if undefined.
HousekeepingFrequency no 1-24 1 How often Zabbix will perform housekeeping procedure (in hours).
Housekeeping is removing unnecessary information from history, alert, and alarms tables.
If PostgreSQL is used, suggested value is 24, as it performs VACUUM.
Include no You may include individual files or all files in a directory in the configuration file.
ListenIP no 0.0.0.0 List of comma delimited IP addresses that the trapper should listen on.
Trapper will listen on all network interfaces if this parameter is missing.
Multiple IP addresses are supported in version 1.8.3 and higher.
ListenPort no 1024-32767 10051 Listen port for trapper.
LogFileSize no 0-1024 1 Maximum size of log file in MB.
0 - disable automatic log rotation.
LogFile no Name of log file.
If not set, syslog is used.
LogSlowQueries no 0-3600000 0 If a query takes longer than this many milliseconds, the query is logged to the log file.
0 - disable log slow queries
This option is supported in version 1.8.2 and higher.
PidFile no /tmp/zabbix_proxy.pid Name of PID file.
ProxyLocalBuffer no 0-720 0 Proxy will keep data locally for N hours.
This parameter may be used if local data will be used by third party applications.
ProxyMode no 0-1 0 Proxy operating mode.
0 - proxy in the active mode
1 - proxy in the passive mode
This option is supported in version 1.8.3 and higher.
ProxyOfflineBuffer no 0-720 1 Proxy will keep data for N hours in case of no connectivity with Zabbix Server.
Older data will be lost.
SSHKeyLocation no Location of public keys for SSH checks
ServerPort no 1024-32767 10051 Port of Zabbix trapper on Zabbix server.
For a proxy in the passive mode this parameter will be ignored.
Server yes IP address (or hostname) of Zabbix server.
Active Proxy will get configuration data from the server.
For a proxy in the passive mode this parameter will be ignored.
SourceIP no Source IP address for outgoing connections.
StartDBSyncers no 1-64 4 Number of pre-forked instances of DB Syncers.
This option is supported in version 1.8.3 and higher.
StartDiscoverers no 0-255 1 Number of pre-forked instances of discoverers.
StartHTTPPollers no 0-255 1 Number of pre-forked instances of HTTP pollers.
StartIPMIPollers no 0-255 0 Number of pre-forked instances of IPMI pollers.
StartPingers no 0-255 1 Number of pre-forked instances of ICMP pingers.
StartPollersUnreachable no 0-255 1 Number of pre-forked instances of pollers for unreachable hosts.
Obsolete since 1.8.3.
StartPollers no 0-255 5 Number of pre-forked instances of pollers.
StartTrappers no 0-255 5 Number of pre-forked instances of trappers
Timeout no 1-30 3 Specifies how long we wait for agent, SNMP device or external check (in seconds).
TmpDir no /tmp Temporary directory.
TrapperTimeout no 1-300 300 Specifies how many seconds trapper may spend processing new data.
TrendCacheSize no 128K-1G 4M Size of trend cache, in bytes.
Shared memory size for storing trends data.
UnavailableDelay no 1-3600 60 How often host is checked for availability during the unavailability period, in seconds.
UnreachableDelay no 1-3600 15 How often host is checked for availability during the unreachability period, in seconds.
UnreachablePeriod no 1-3600 45 After how many seconds of unreachability treat a host as unavailable.
2010/07/13 14:34

3.3 Agente Zabbix (UNIX, processo Standalone daemon)

O Agente Zabbix para unix é executado em um host sendo monitorado. O agente fornece performance do host e informação de disponibilidade pelo Zabbix Server. O agente Zabbix processa itens do tipo 'Zabbix Agent' e 'Zabbix Agent (ativo)'.

O Zabbix Agente pode ser iniciado executando os seguintes comandos:

shell> cd sbin
shell> ./zabbix_agentd

O agente Zabbix é executado como um processo daemon. O agente Zabbix aceita os seguinte parametros de linha de comando

  -c --config <arquivo> especifica o arquivo de configuração, o padrão é /etc/zabbix/zabbix_agentd.conf
  -h --help mostra essa tela de ajuda
  -v --version mostra a versão do agente
  -p --print imprime as metricas suportadas e saída.
  -t --test <metric> testas metricas especificadas e saída.

No caso de mostrar essa ajuda, execute:

shell> zabbix_agentd -h

Exemplos de parâmetros de linha de comando:

shell> zabbix_agentd -c /usr/local/etc/zabbix_agentd.conf
shell> zabbix_agentd --help
shell> zabbix_agentd --print
shell> zabbix_agentd -t "system.cpu.load[all,avg1]"

o arquivo de configuração contem parâmetros de configuração para o zabbix_agentd. O arquivo deve existir e eke deveria ter permissão de leiura para o usuário 'zabbix'. Parâmetros suportados:

ParâmetrosMandatórioAlcancePadrãoDescrição
BufferSend no 1-3600 5 Do not keep data longer than N seconds in buffer.
BufferSize no 2-65535 100 Maximum number of values in a memory buffer. The agent will send
all collected data to Zabbix Server or Proxy if the buffer is full.
DebugLevel no 0-4 3 Specifies debug level
0 - no debug
1 - critical information
2 - error information
3 - warnings
4 - for debugging (produces lots of information)
DisableActive no 0 Disable active checks. The agent will work in passive mode listening for server.
DisablePassive no 0 Disable passive checks. The agent will not listen on any TCP port.
Only active checks will be processed.
0 - do not disable
1 - disable
EnableRemoteCommands no 0 Whether remote commands from Zabbix server are allowed.
0 - not allowed
1 - allowed
Hostname system.uname Unique hostname.
Required for active checks and must match hostname as configured on the server.
Include no You may include individual files or all files in a directory in the configuration file.
ListenIP no 0.0.0.0 List of comma delimited IP addresses that the agent should listen on.
Multiple IP addresses are supported in version 1.8.3 and higher.
ListenPort no 1024-32767 10050 Agent will listen on this port for connections from the server.
LogFileSize no 0-1024 1 Maximum size of log file in MB.
0 - disable automatic log rotation.
LogFile no Name of log file.
If not set, syslog is used.
LogRemoteCommands no 0 Enable logging of executed shell commands as warnings
0 - disabled
1 - enabled
MaxLinesPerSecond no 1-1000 100 Maximum number of new lines the agent will send per second to Zabbix Server
or Proxy processing 'log' and 'eventlog' active checks.
The provided value will be overridden by the parameter 'maxlines',
provided in 'log' or 'eventlog' item key.
PidFile no /tmp/zabbix_agentd.pid Name of PID file.
RefreshActiveChecks no 60-3600 120 How often list of active checks is refreshed, in seconds.
ServerPort no 10051 Server port for retrieving list of and sending active checks.
Server yes List of comma delimited IP addresses (or hostnames) of Zabbix servers.
No spaces allowed. First entry is used for receiving list of and sending active checks.
Note that hostnames must resolve hostname→IP address and IP address→hostname.
SourceIP no Source IP address for outgoing connections.
StartAgents no 1-16 3 Number of pre-forked instances of zabbix_agentd that process passive checks.
Timeout no 1-30 3 Spend no more than Timeout seconds on processing
UnsafeUserParameters no 0,1 0 Allow all characters to be passed in arguments to user-defined parameters. Supported since Zabbix 1.8.2.
UserParameter no User-defined parameter to monitor. There can be several user-defined parameters.
Format: UserParameter=<key>,<shell command>
Note that shell command must not return empty string or EOL only.
Example: UserParameter=system.test,who|wc -l
2010/07/13 14:47

3.4 Zabbix Agent (UNIX, Inetd version)

The file contains configuration parameters for zabbix_agent. The file must exist and it should have read permissions for user 'zabbix'. Supported parameters:

ParameterMandatoryDefault valueDescription
Server yes -Comma-delimited list of IP addresses of ZABBIX Servers or Proxies. Connections from other IP addresses will be rejected.
Timeout no 3Do not spend more than Timeout seconds on getting requested value (1-255). The agent does not kill timeouted User Parameters processes!
UnsafeUserParameters no 0 Allow all characters to be passed in arguments to user-defined parameters
UserParameter no User-defined parameter to monitor. There can be several user-defined parameters.
Format: UserParameter=<key>,<shell command>
Note that shell command must not return empty string or EOL only.
Example: UserParameter=system.test,who|wc -l
2010/07/13 14:47
 

3.5 Zabbix Sender (UNIX)

Zabbix UNIX Sender is a command line utility which may be used to send performance data to Zabbix Server for processing.

The utility is usually used in long running user scripts for periodical sending of availability and performance data. Zabbix Sender can be started by executing:

shell> cd bin
shell> ./zabbix_sender -z zabbix -p 10051 -s LinuxDB3 -k db.connections -o 43

See Zabbix Sender manpage for more information.

2010/07/13 14:35

3.6 Zabbix Get (UNIX)

Zabbix UNIX Get is a process which communicates with Zabbix Agent and retrieves required information.

The utility is usually used for troubleshooting of ZABBIX Agents.

Zabbix Get can be started by executing:

shell> cd bin
shell> ./zabbix_get -s127.0.0.1 -p10050 -k"system.cpu.load[all,avg1]"

Zabbix Get accepts the following command line parameters:

  -p --port <port number> Specify port number of agent running on the host. Default is 10050.
  -s -host <host name or IP> Specify host name or IP address of a host.
  -I --source-address <ip address> Specify source IP address
  -k -key <key of metric> Specify metric name (key) we want to retrieve.
  -h --help Give this help.
  -v --version Display version number.

In order to get this help run:

shell> zabbix_get -h
2010/07/13 14:36