ZABBIX 2.4.2rc1





31 October 2014

Zabbix SIA is pleased to announce the availability of Zabbix 2.4.2rc1 (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 2.4.2rc1. Download it from

This release fixes known issues of Zabbix 2.4.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!

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

What's New in 2.4.2rc1

:: Increased command length

Increased limitation of command length for remote commands with agent.

:: Updated translations

Updated Brazilian Portuguese, Greek, Italian, Japanese, Polish, Slovak and Spanish translations.

:: List of Improvements included into 2.4.2rc1

  • [ZBX-1357] updated Brazilian Portuguese, Greek, Italian, Japanese, Polish, Slovak and Spanish translations
  • [ZBX-8503] increased limitation of command length for remote commands with agent

:: Complete List of Bug Fixes and Improvements included into 2.4.2rc1

  • [ZBX-1357] updated Brazilian Portuguese, Greek, Italian, Japanese, Polish, Slovak and Spanish translations; thanks to Zabbix translators
  • [ZBX-8503] increased limitation of command length for remote commands with agent
  • [ZBX-8978] fixed propagation of the SNMP bulk flag into discovered hosts
  • [ZBX-8978] fixed propagation of the interfaces into discovered hosts in same order as in the parent host
  • [ZBX-8970] fixed interfaces list not being displayed correctly for discovered hosts
  • [ZBX-8849] fixed redundant linking with -lcrypto when linking with Net-SNMP
  • [ZBX-8913] fixed JSON validation sometimes failing to process utf-8 sequences
  • [ZBX-8951] fixed agent crash on HP-UX 11.31 when processing "net.if.discovery" item
  • [ZBX-8901] added ability to use scientific notation and floats without leading 0 to Configuration -> Hosts -> Discovery -> Item Prototypes
  • [ZBX-6542] updated description of HousekeepingFrequency parameter in the default server and proxy configuration files
  • [ZBX-8833] fixed dynamic SNMP item cache working incorrectly for hosts with multiple SNMP interfaces, optimized cache performance
  • [ZBX-8904] fixed item.get API to not read all host interfaces when option "selectInterfaces" is used
  • [ZBX-8538] added Net-SNMP retry of 1 for cases where Zabbix will not be retrying itself
  • [ZBX-8538] changed the strategy to decrease the optimal number of variables two times only
  • [ZBX-8232] fixed performance issues in maps
  • [ZBX-8948] fixed memory leak when checking Template condition during action processing
  • [ZBX-6353] improved history cache performance when it's flooded with data from less than 1000 items
  • [ZBX-8916] fixed "lastlogsize" not being updated in the configuration cache when values are received from the agent
  • [ZBX-8877] fixed filters not hiding/showing for IE11
  • [ZBX-8794] fixed parsing of runtime control options and related error messages
  • [ZBX-8885] fixed building of Zabbix daemons with IBM DB2 support on systems with newer gcc compilers
  • [ZBX-8791] fixed importing sysmaps when host elements are linked and have a trigger assigned to the link
  • [ZBX-8072] fixed bug when long messages were not truncated to 2KB when inserting into alerts table on DB2 databases
  • [ZBX-6174] fixed "skipDependent" option in trigger.get API call to correctly handle cases when triggers on which they depend are disabled
  • [ZBX-8887] fixed error messages when saving graph with invalid width and height
  • [ZBX-8699] fixed zbx_sleep_loop() to handle correctly signal arrival
  • [ZBX-8793] fixed processing of snmp value to represent it as integer
  • [ZBX-8726] fixed warning messages shown by deprecated PHP 5.6 options "mbstring.internal_encoding" and "always_populate_raw_post_data"
  • [ZBX-8817] fixed incorrect clearing of web scenario item history and trends
  • [ZBX-8830] fixed map pop-up menu "Triggers" link being always disabled for host group map elements
  • [ZBX-5561] fixed configuration failure during cross compilation; thanks to Christof Lauber for the patch
  • [ZBX-8621] added validation of received SNMP responses and warnings in case SNMP responses are bad
  • [ZBX-8764] added missing validation for resource ID in screenitem.create and screenitem.update API
  • [ZBX-8754] fixed crash in escalator when processing an alert without an user, but with a media type set

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 1.8.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 2000, Server 2003, XP, Vista, Server 2008, 7, 8, Server 2012

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 2.4.x. Please contact Sales for pricing and more details.


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