Zabbix Documentation 2.2

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manual:appendix:config:zabbix_server

2.1 Zabbix server

The parameters supported in a Zabbix server configuration file:

ParameterMandatoryRangeDefaultDescription
AlertScriptsPath no /usr/local/share/zabbix/alertscripts Location of custom alert scripts (depends on compile-time installation variable datadir).
AllowRoot no 0-1 0 Allow the server to run as 'root'. If disabled and the server is started by 'root', the server will try to switch to the 'zabbix' user instead. Has no effect if started under a regular user.
0 - do not allow
1 - allow
This parameter is supported since Zabbix 2.2.0.
CacheSize no 128K-8G 8M Size of configuration cache, in bytes.
Shared memory size for storing host, item and trigger data.
Upper limit used to be 2GB before Zabbix 2.2.3.
CacheUpdateFrequency no 1-3600 60 How often Zabbix will perform update of configuration cache, in seconds.
DBHost no localhost Database host name.
In case of MySQL localhost or empty string results in using a socket. In case of PostgreSQL
only empty string results in attempt to use socket.
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.
DBSchema no Schema name. Used for IBM DB2.
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)
EnableSNMPBulkRequests no 0-1 1 Enable or disable SNMP bulk requests:
0 - disable
1 - enable
This parameter is supported since Zabbix 2.2.7.
ExternalScripts no /usr/local/share/zabbix/externalscripts Location of external scripts (depends on compile-time installation variable datadir).
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-2G 8M Size of history cache, in bytes.
Shared memory size for storing history data.
HistoryTextCacheSize no 128K-2G 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 outdated information from the database.
Note: To prevent housekeeper from being overloaded (for example, when history and trend periods are greatly reduced), no more than 4 times HousekeepingFrequency hours of outdated information are deleted in one housekeeping cycle, for each item. Thus, if HousekeepingFrequency is 1, no more than 4 hours of outdated information (starting from the oldest entry) will be deleted per cycle.
Include no You may include individual files or all files in a directory in the configuration file. See special notes about limitations.
JavaGateway no IP address (or hostname) of Zabbix Java gateway.
Only required if Java pollers are started.
This parameter is supported since Zabbix 2.0.0.
JavaGatewayPort no 1024-32767 10052 Port that Zabbix Java gateway listens on.
This parameter is supported since Zabbix 2.0.0.
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 since Zabbix 1.8.3.
ListenPort no 1024-32767 10051 Listen port for trapper.
LoadModule no Module to load at server startup. Modules are used to extend functionality of the server.
Format: LoadModule=<module.so>
The modules must be located in directory specified by LoadModulePath.
It is allowed to include multiple LoadModule parameters.
LoadModulePath no Full path to location of server modules.
Default depends on compilation options.
LogFile no Name of log file.
LogFileSize no 0-1024 1 Maximum size of log file in MB.
0 - disable automatic log rotation.
Note: If the log file size limit is reached and file rotation fails, for whatever reason, the existing log file is truncated and started anew.
LogSlowQueries no 0-3600000 0 How long a database query may take before being logged (in milliseconds).
0 - don't log slow queries.
This option becomes enabled starting with DebugLevel=3.
This parameter is supported since Zabbix 1.8.2.
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 parameter is supported since Zabbix 1.8.2 and applies only to deleting history and trends of already deleted items.
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 parameter is supported since Zabbix 1.8.3.
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 parameter is supported since Zabbix 1.8.3.
SenderFrequency no 5-3600 30 How often Zabbix will try to send unsent alerts (in seconds).
SNMPTrapperFile no /tmp/zabbix_traps.tmp Temporary file used for passing data from SNMP trap daemon to the server.
Must be the same as in zabbix_trap_receiver.pl or SNMPTT configuration file.
This parameter is supported since Zabbix 2.0.0.
SourceIP no Source IP address for outgoing connections.
SSHKeyLocation no Location of public and private keys for SSH checks and actions
StartDBSyncers no 1-100 4 Number of pre-forked instances of DB Syncers.
The upper limit used to be 64 before version 1.8.5.
This parameter is supported since Zabbix 1.8.3.
StartDiscoverers no 0-250 1 Number of pre-forked instances of discoverers.
The upper limit used to be 255 before version 1.8.5.
StartHTTPPollers no 0-1000 1 Number of pre-forked instances of HTTP pollers.
The upper limit used to be 255 before version 1.8.5.
StartIPMIPollers no 0-1000 0 Number of pre-forked instances of IPMI pollers.
The upper limit used to be 255 before version 1.8.5.
StartJavaPollers no 0-1000 0 Number of pre-forked instances of Java pollers.
This parameter is supported since Zabbix 2.0.0.
StartPingers no 0-1000 1 Number of pre-forked instances of ICMP pingers.
The upper limit used to be 255 before version 1.8.5.
StartPollersUnreachable no 0-1000 1 Number of pre-forked instances of pollers for unreachable hosts (including IPMI).
The upper limit used to be 255 before version 1.8.5.
This option is missing in version 1.8.3.
StartPollers no 0-1000 5 Number of pre-forked instances of pollers.
The upper limit used to be 255 before version 1.8.5.
StartProxyPollers no 0-250 1 Number of pre-forked instances of pollers for passive proxies.
The upper limit used to be 255 before version 1.8.5.
This parameter is supported since Zabbix 1.8.3.
StartSNMPTrapper no 0-1 0 If set to 1, SNMP trapper process will be started.
This parameter is supported since Zabbix 2.0.0.
StartTimers no 1-1000 1 Number of pre-forked instances of timers.
Timers process time-based trigger functions and maintenance periods.
Only the first timer process handles the maintenance periods.
This parameter is supported since Zabbix 2.2.0.
StartTrappers no 0-1000 5 Number of pre-forked instances of trappers.
Trappers accept incoming connections from Zabbix sender, active agents, active proxies and child nodes.
At least one trapper process must be running to display server availability and view queue in the frontend.
The upper limit used to be 255 before version 1.8.5.
StartVMwareCollectors no 0-250 0 Number of pre-forked vmware collector instances.
This parameter is supported since Zabbix 2.2.0.
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-2G 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.
ValueCacheSize no 0,128K-64G 8M Size of history value cache, in bytes.
Shared memory size for caching item history data requests.
Setting to 0 disables value cache (not recommended).
When value cache runs out of the shared memory a warning message is written to the server log every 5 minutes.
This parameter is supported since Zabbix 2.2.0.
VMwareCacheSize no 256K-2G 8M Shared memory size for storing VMware data.
A VMware internal check zabbix[vmware,buffer,…] can be used to monitor the VMware cache usage (see Internal checks).
Note that shared memory is not allocated if there are no vmware collector instances configured to start.
This parameter is supported since Zabbix 2.2.0.
VMwareFrequency no 10-86400 60 Delay in seconds between data gathering from a single VMware service.
This delay should be set to the least update interval of any VMware monitoring item.
This parameter is supported since Zabbix 2.2.0.
VMwarePerfFrequency no 10-86400 60 Delay in seconds between performance counter statistics retrieval from a single VMware service.
This delay should be set to the least update interval of any VMware monitoring item that uses VMware performance counters.
This parameter is supported since Zabbix 2.2.9
VMwareTimeout no 1-300 10 The maximum number of seconds vmware collector will wait for a response from VMware service (vCenter or ESX hypervisor).
This parameter is supported since Zabbix 2.2.9

Zabbix supports configuration files only in UTF-8 encoding without BOM.