ZABBIX 1.8.1


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Zabbix SIA is proud to announce the availability of Zabbix 1.8.1.

Zabbix is an enterprise-class open source distributed monitoring solution. Zabbix is released under the GPL, thus it is free of charge for both commercial and non-commercial use. A complete text of the license is available at

This document contains the release notes for Zabbix 1.8.1.

This release fixes numerous issues of Zabbix 1.8. It is highly recommended to upgrade!

In you are using Zabbix 1.8 with node-based distributed setup, please run the following SQL patch. It should improve performance of configuration syncing very much.

DROP INDEX node_cksum_1 ON node_cksum;
CREATE INDEX node_cksum_1 on node_cksum (nodeid,cksumtype,tablename,recordid);

DROP INDEX node_cksum_1;
CREATE INDEX node_cksum_1 on node_cksum (nodeid,cksumtype,tablename,recordid);

DROP INDEX node_cksum_1;
CREATE INDEX node_cksum_1 on node_cksum (nodeid,cksumtype,tablename,recordid);

The following sections describe the release in details and provide late-breaking or other information that supplements its main documentation.

What's New in 1.8.1

:: Support of calculated items

Calculated items make possible creation of virtual items based on arithmetical expressions. The items are built on top of other items and use data stored in Zabbix database. See documentation for more details.

:: New Dashboard widget: Host Status

The new widget displays number of hosts having problems per each host group.

:: Enhanced AIX agent

Zabbix Agent natively supports all basic AIX metrics including those used for monitoring of AIX logical partitions.

:: Other Improvements and Bug Fixes

  • [ZBX-1850] fixed warnings when saving host with enabled profile
  • [ZBX-1757] fixed oracle 1.8 upgrade patch, not null constraints
  • [ZBX-1762] fixed errors when editing media types
  • [DEV-445] added support of system.stat[] under AIX
  • [ZBX-1633] fixed sysmaps in PostgreSQL upgrade patch
  • [ZBX-1617] fixed triggers duplicating in template linking for discovered hosts
  • [ZBX-1840] fixed bad performance of the node synchronization - fixed database index
  • [ZBX-1742] fixed processing of "system.uptime" check under Windows to return values as integers
  • [ZBX-1786] fixed not remembered group when using paging in export screen
  • [ZBX-1735] added "ERROR" words to some error messages in data cache module
  • [ZBX-1321] fixed displaying of large unsigned int values in latest data
  • [ZBX-1838] fixed value mapping in overview screen
  • [ZBX-1788] fixed proxy configuration form showing hosts from all nodes
  • [ZBX-954] fix typo in default trigger names
  • [ZBX-1746] fixed problems viewing map element
  • [ZBX-1763] applied patch with translation for some javascript strings
  • [DEV-447,DEV-448] added support of net.if.* under Windows
  • [ZBX-1582] fixed processing[...] check to avoid the server crashing on libssh2 timeout
  • [ZBX-1688] hosts, user doesn't have permission to, are shown gray in hostgroup configuration screen
  • [ZBX-1608] fixed notifications after maintenance periods
  • [ZBX-1576] fixed evaluating aggregate items for large host groups
  • [ZBX-1822] changed in map, elements hosts now always show only count of problems
  • [ZBX-1427] fixed adding Actions through API
  • [ZBX-1810] fixed adding user media through API
  • [ZBX-1818] fixed API inner inconsistency in method naming
  • [ZBX-1818] changed API version
  • [ZBX-3] remove a comment saying syslog is used until it works from proxy config file as well
  • [ZBX-1801] fixed action disable link
  • [ZBX-1763] added last week to SLA weekly graph
  • [ZBX-1716] fixed server behaviour (not dying silently) when mysql database user, password or privileges change
  • [ZBX-1800] updated Japanese translation; thanks to Kodai
  • [ZBX-1798] updated Russian translation; thanks to dotneft
  • [ZBX-1783] fixed problem with fixed Y axis in graphs
  • [ZBX-1654] fixed disabled trigger map icon
  • [ZBX-1653] fixed link from maps to events
  • [ZBX-1164] improved error messaging in regexp form
  • [ZBX-1774] fixed error in slide screen in case if no screens defined
  • [ZBX-1758] improved node filtering in sqls
  • [ZBX-1776] fixed js error for ie6 in triggers status screen
  • [ZBX-1752] fixed error showing maps when REGISTER_GLOBALS in PHP is on
  • [ZBX-954] fixed typos in changelog, error messages and frontend item hints
  • [ZBX-1725] fixed graph item sortorder
  • [ZBX-1635] fixed possible Windows agent crash when using checks based on performance counters
  • [ZBX-1759] fixed bug when bulk acknowledge, acknowledges already acknowledged events
  • [ZBX-1596] fixed checking of allowed hosts for data sent by zabbix_sender
  • [ZBX-1572] fixed processing of the performance counters defined in the configuration file using non-latin symbols
  • [ZBX-1264] added support of simplified syntax for external checks
  • [ZBX-1483] fixed icmppingsec to return seconds as in 1.6.x
  • [ZBX-862] added support of kernel.maxproc[] under Linux 2.6
  • [ZBX-1714] added confirmation dialogue for proxy operations
  • [ZBX-1717] fixed configuration -> ITservices display bugs when nodeid is greater than 99
  • [ZBX-1712] removed empty translation strings
  • [ZBXNEXT-194] added host status widget to dashboard
  • [ZBX-1670] fixed events from slave nodes not shown when all nodes are selected
  • [ZBX-1668] fixed saving graphs with web items
  • [ZBX-1728] fixed expression deletion in log trigger form
  • [ZBX-1357] updated French translation. Thanks to alixen
  • [ZBX-1732] added node and group name for screen widget "triggers info"
  • [ZBXNEXT-196] added "Show with unacknowledged" filter option for triggers screen
  • [ZBX-1729] removed limitation of showings triggers in charts only by one item
  • [ZBX-1729] removed excessive space in chart header, informational messages (triggers, percentile) are separate
  • [ZBX-1577] fixed pie chart display
  • [ZBX-1613] added sorting for user groups members
  • [ZBX-1734] changed severity colouring in events screen
  • [ZBX-1573] fixed colon precedence in user right entries
  • [ZBX-1708] fixed errors in log items history screen
  • [ZBX-1715] fixed errors in IT Services parent selection sceren
  • [ZBX-1652] fixed user media deletion on profile save
  • [ZBX-1641] fixed handling of "Include" statement in configuration files
  • [ZBX-1580] reduced frontend memory usage
  • [ZBX-1663] fixed y axis calculation in stacked graphs
  • [ZBX-1468] fixed editing user media types on node with id > 99
  • [ZBX-1727] add missing S_INCORRECT_EXPRESSION localisation string
  • [ZBX-1659] fixed checked marks on multilabel selection on map
  • [ZBXNEXT-192] added possibility to exclude some services from the result of services[]
  • [ZBX-1478] improved php requirements checks
  • [ZBX-1713] fixed adding user group to email alerts
  • [ZBX-1643] removed edit links from search if no write access to object
  • [ZBX-1661] fixed value mappings retrieval
  • [ZBX-1665] fixed hosts view in graphs configuration screen
  • [ZBX-1673] fixed removing hosts from hosts group, when user with permission only on host group updates it
  • [ZBX-1639] fixed processing of logrt[] check
  • [ZBX-1671] make more strings translatable. Thanks to alixen
  • [ZBX-1669] make more strings translatable. Patch by dotneft
  • [ZBX-1627] fixed errors in monitoring->overview
  • [ZBX-1603] fixed button title when editing maintenance period
  • [ZBX-1638] added host name to link indicator
  • [ZBX-1658] removed "Zabbix Status" from dashboard for non super admins
  • [ZBX-1646] improved permissions check in Dashboard
  • [ZBX-1626] added LDAP authentication to API
  • [ZBX-1624] fixed template linkage popup, when all templates are selected by default
  • [ZBX-1604] extended maintenance period info messages
  • [ZBX-1647] removed displaying of host availability on maps
  • [ZBX-1495] fixed map level label location
  • [ZBX-1629] added colouring of items in trigger configuration screen
  • [ZBX-979] host mass update templates now only link new templates
  • [ZBX-1642] fixed possibility of editing read only host items
  • [ZBX-1242] fixed adding macro in triggers editing form
  • [ZBX-1589] fixed no permission error when try to edit host form from search screen
  • [ZBX-1561] fixed errors when view event info as admin user
  • [ZBX-954] fixed item property reference when adding log item with type other than "log"
  • [ZBX-1493] fixed disabled host icon view
  • [ZBX-1546] fixed processing link triggers on map
  • [ZBX-1476] fixed host links in map
  • [ZBX-1605] fixed map with host element under maintenance
  • [ZBX-1507] fixed userid added instead of ip for some audit actions
  • [ZBX-1563] fixed error when view history for log type item
  • [ZBX-1556] fixed importing graphs with items that does not exist in system
  • [ZBX-1515] fixed json encode/decode with mb overload enabled
  • [ZBX-1623] fixed no proxy listed when admin edits host
  • [ZBX-1456] fixed map update on linkage properties change
  • [ZBX-1625] when mass update hosts, default "connect to" option is set to IP
  • [ZBX-1479] fixed host mass update
  • [ZBX-1628] removed templates from status of triggers screen
  • [ZBX-1508] fixed action map creation
  • [ZBX-1593] fixed errors when admin tries to add hostgroup editin host
  • [ZBX-1621] fixed displaying of ITservices graph text
  • [ZBX-1553] fixed host group mass activate/disable operation
  • [ZBX-1455] added sorting for host/global macros
  • [ZBX-1523] fixed last macros deletion
  • [ZBX-1619] fixed web scenario data not removed from DB when host is deleted
  • [ZBX-1567] fixed availability graph text displaying
  • [ZBX-1581] fixed wrong group saved as discovery group in Administration->General
  • [ZBX-1592] user groups are now sorted in user list and editing form
  • [ZBX-1475] improved elements status checks
  • [ZBX-1598] fixed empty application list when mass update template items
  • [ZBX-1612] fixed "API access" and "Disabled" group permissions; patch by Kodai
  • [ZBX-1606] fixed showing icon errors with qoutes in error text
  • [ZBX-1571] fixed errors when adding proxy
  • [ZBX-1585] fixed editing time in calendar popup in ie6/7
  • [ZBX-1564] fixed processing of performance counters which are represented as number alternatives
  • [ZBX-479] fixed compilation of Zabbix agent under Mac OS/X
  • [ZBX-1385] proxy list in host configuration form is now sorted
  • [ZBX-1560] fixed typo in application API class call
  • [ZBX-1286] Zabbix handles some specified types of errors instead of Windows system, no dialogue boxes pop up
  • [ZBX-1420] fixed warnings in Dashboard and on script execution if Zabbix server is down
  • [1584] fixed importing/exporting of IPMI settings
  • [ZBX-1554] fixed errors when saving triggers using "Create log trigger"
  • [ZBX-1530] fixed showing graph from wrong host, when simple graph with dynamic option is clicked on screen
  • [ZBX-1545] fixed showing templated graphs in graph selection combobox
  • [ZBX-1465] fixed adding hostgroup elements on map
  • [ZBX-1528] fixed map permissions
  • [ZBX-1569] fix incorrect state reference in map connector definition
  • [ZBX-1568] make 'Parent service' string translatable; patch by Kodai
  • [ZBX-1457] hosts in export file is now sorted by hostname
  • [ZBX-1462] fixed "Add host" operation for "Discovery" module for trying to add a host name which is already use
  • [ZBX-1547] fixed SQL error while executing discovery action 'remove host'
  • [ZBX-1324] replaced more user visible strings ZABBIX with Zabbix
  • [ZBX-1470] fixed importing triggers with dependencies
  • [ZBX-1440] fixed error when adding global macro
  • [ZBX-1435] fixed exporting triggers with '&'
  • [ZBX-1174] fixed sql in "Add host" operation in "Discovery" module
  • [ZBX-1431] fixed parameters for user.get api method
  • [ZBX-1467] fixed graph copying
  • [ZBX-1502] fixed full clone of hosts
  • [ZBX-1460] forbade creation of circular template linkages
  • [ZBX-1441] fixed incorrectly remembered link line type
  • [ZBX-1498] fixed error when try to create item with custom key "log" and not Log item type
  • [ZBX-1497] fixed evaluation of trigger function 'count'
  • [ZBX-1283] fixed group selection in maintenance edit form
  • [ZBX-1316] fixed missing trigger expressions using expression constructor
  • [ZBX-1473] fixed installation requires mb_string function from php 5.2
  • [ZBX-1454] fixed adding user to one group, removes all other users from group
  • [ZBX-1346] improve example configuration files
  • [ZBX-1369] make more strings translatable

Installation and Upgrade Notes


See Zabbix Manual for full details.


Recompile Zabbix binaries and update front-end PHP files, executed database patch. See Zabbix Manual for a detailed upgrade procedure.

Pre-release testing

Zabbix Server

Zabbix Server has been tested on the following platforms:

  • Ubuntu Linux, AMD64, kernel 2.6.11, MySQL 5.x
  • Ubuntu Linux, Intel, kernel 2.6.15, MySQL 5.0.22, PostgreSQL 8.3
  • RedHat EL 5.3, Intel, kernel 2.6.18, Oracle 11gR2

Zabbix Agents

Zabbix Agents have been compiled and tested on the following platforms:

  • AIX 5.2
  • FreeBSD 4.x, 5.x, 6.x
  • HP-UX 10.x, 11.x
  • Linux 2.4.x, 2.6.x
  • Linux CentOS
  • NetBSD 2.0
  • OS/X 10.2
  • Solaris 8, 9, 10
  • Tru64 5.1B
  • Windows XP, 2000, 2003, 2008, Vista

Note that agents are available pre-compiled from for a limited number of versions and platforms.

Commercial support

Zabbix Company provides a full range of professional services. We also provide trouble-free upgrade service for easy migration from earlier versions to Zabbix 1.8.x. Please contact Sales for pricing and more details.


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