ZABBIX 1.8.12rc2


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17 April 2012

Zabbix SIA is proud to announce the availability of Zabbix 1.8.12rc2 (Second Release Candidate).

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 1.8.12rc2. Download it from

This release fixes known issues of Zabbix 1.8.x and introduces new minor features. A nice overview of the new functionality is at

This release is not for production use. It is a Release Candidate!

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

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 1.8.12

:: Support of multiple servers by active checks

Zabbix agent is able to process active checks from multiple Zabbix servers. The feature could be used for redundant setups as well as for easy migration from test to production setups. More details can be found here.

:: Complete List of Bug Fixes and Improvements included into 1.8.12rc2

  • [ZBX-4793] fixed processing of quoted strings in dynamic SNMP indexes
  • [ZBX-4709] fixed processing of quoted strings in SNMP items
  • [ZBXNEXT-584] added support of multiple server in active check mode; thanks to Takanori Suzuki
  • [ZBX-4635] added support for optional first parameter to* on Solaris
  • [ZBX-4795] fixed group creation for child nodes
  • [ZBX-4195] fixed memory leak while processing unsupported performance counters by Windows agent
  • [ZBX-4813] fixed incorrect exception handling in maps when checking for circularity
  • [ZBX-2873] fixed colors in dark theme
  • [ZBX-3152] fixed global messages being shown even if all severities are unchecked
  • [ZBX-4801] fixed processing of proc.num[] and proc.mem[] checks with name of processes longer than 15 characters
  • [ZBX-4253] fixed menu link inconsistency in tr_status.php
  • [ZBX-4749] fixed proxy crash on exit when deleting trend cache
  • [ZBXNEXT-744] added support of {ITEM.ID} and {TRIGGER.EXPRESSION} macros in notifications and commands
  • [ZBX-4761] fixed "&" encoding in input fields
  • [ZBX-4697] fixed error when mass-updating group for hosts that belong to different groups
  • [ZBX-4777] added information in the Zabbix sender manpage about values being sent in a sequential manner and the need to have ordered timestamps

Installation and Upgrade Notes


See Zabbix Manual for full details.


Recompile Zabbix binaries and update front-end PHP files. Execute a database patch if migrating from Zabbix 1.6.x. 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
  • Slackware Linux, x86, kernel, MySQL 5.1.x

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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