Release Notes for Zabbix 2.5.0

Zabbix Team is pleased to announce the availability of Zabbix 2.5.0.

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 http://www.gnu.org/copyleft/gpl.txt.

This document contains the release notes for Zabbix 2.5.0. Download it from downloads.

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

New Features and Improvements

ZBXNEXT-2662
 implemented a new design for the Zabbix Web interface 
ZBXNEXT-2703
 implemented feature to filter dashboard by trigger name 
ZBXNEXT-2892
 increased IP range length and added support for tabulation, carriage return and newline characters 
ZBXNEXT-2760
 added zabbix[host,,items] and zabbix[host,,items_unsupported] keys to monitor the number of (unsupported) items per host 
ZBXNEXT-1219
 added application prototype support to low level discovery rules 
ZBX-4344
 added functionality to stop processing escalations if dependent trigger fires 
ZBXNEXT-679
 implemented SMTP authentication support 
ZBXNEXT-1368
 added Windows service discovery and service.info[] item; thanks to Ryan Armstrong for patch 
ZBX-8297
 removed "Triggers info" top line from Monitoring > Triggers page fullscreen view 
ZBXNEXT-786
 renamed net.tcp.service[ntp] and net.tcp.service.perf[ntp] to net.udp.service[ntp] and net.udp.service.perf[ntp] 
ZBXNEXT-1229
 added support of trigger prototype dependencies 
ZBXNEXT-210
 added displaying of the available user macros on host and template level 
ZBX-7654
 implemented XML import versioning and fixed various XML validation issues 
ZBXNEXT-2800
 increased error field lengths in "hosts" table from 128 to 2048 
ZBXNEXT-2495
 improved performance of maps; changed triggers_2 index 
ZBXNEXT-2474
 improved value cache low memory mode handling by switching back to normal mode once per day. The current value cache operational mode now can be checked with zabbix[vcache,cache,mode] interval item 
ZBXNEXT-2462
 improved nodata() function calculation 
ZBX-5813
 added support for spaces in IP ranges in network discovery and action conditions 
ZBXNEXT-866
 added IP address in the messages about connections between server and proxy 
ZBXNEXT-2724
 removed all deprecated "exists" and "getObjects" API methods, "expandData" parameter in various *.get methods and "selectHosts" parameter from application.get method 
ZBXNEXT-2357
 added MVC framework, some pages already take advantage of the framework 
ZBXNEXT-444
 improved log file monitoring by saving log file meta information which was previously lost during agent restart 
ZBXNEXT-1128
 added support of {HOST.*} and user macros in trigger URL 
ZBXNEXT-2619
 added an item for VMware virtual machine CPU ready state monitoring 
ZBXNEXT-1493
 changed activity dropdowns at the bottom of various pages to buttons 
ZBXNEXT-1554
 added multiple OID support to SNMP low-level discovery rules 
ZBXNEXT-2321
 added support for "db.odbc.discovery[]" item for low-level discovery through ODBC 
ZBXNEXT-2637
 changed the DB user in the default configuration files to "zabbix", server and proxy timeouts to 4 seconds, LogSlowQueries to 3 seconds and MaxHousekeeperDelete to 5000; listed characters, prohibited in user parameters 
ZBXNEXT-756
 added function percentile() to calculated items and trigger expressions 
ZBX-9006
 added support for IPv6 addresses to Java gateway 
ZBXNEXT-1821
 added "Zabbix" as default user agent, updated outdated user agent strings in web scenario form and improved selection of other user agents 
ZBXNEXT-1036
 improved "Most busy triggers top 100" page filter 
ZBXNEXT-2602
 minor design and layout improvements 
ZBXNEXT-2471
 improved value cache management by resetting item's cached range to the daily request range once per day 
ZBXNEXT-2320
 added agent crash handling on Windows to log its stack trace 
ZBXNEXT-1078
 added 'proc.mem[]' 5th parameter (memtype) on AIX, FreeBSD, Linux, Solaris; thanks to Johan Fischer and gescheit for agent patches for Linux and FreeBSD 
ZBXNEXT-2006
 added {#FSDRIVETYPE} macro to vfs.fs.discovery on Windows 
ZBXNEXT-207
 added a runtime control option to force execution of housekeeper 
ZBXNEXT-1799
 added support of low-level discovery macros in the "IPMI sensor" field 
ZBXNEXT-2079
 added support of low-level discovery macros in the "Units" field 
ZBXNEXT-689
 added protocol option to net.dns and net.dns.query keys to enable TCP based queries 
ZBXNEXT-2325
 added CPU guest and guest priority metrics to system.cpu.util[] item, supported on Linux kernels starting from 2.6.24 and 2.6.33 respectively

Bug Fixes

ZBX-9608
 improved the aggregate item key description in the frontend 
ZBX-9519
 fixed vfs.fs.inode[] behaviour in case of CephFS 
ZBX-8902
 made messages 'database is down...' and 'database connection re-established' appear in log at DebugLevel=2 
ZBX-8725
 enabled setting DebugLevel=5 in configuration files 
ZBX-9699
 optimized initial cache allocation parameters so that server in default configuration would start with minimum cache settings 
ZBX-7821
 removed restriction to have log type information for items with key "log", "logrt" and "eventlog" 
ZBX-8252
 renamed "Retries" to "Attempts" in web scenario edit form and list view 
ZBX-9623
 fixed possible SQL error when network discovery rule and LLD rule are processed at the same time 
ZBX-9540
 fixed import/export of the "Host time" clock screen element 
ZBX-9142
 made vm.memory.size[available] read MemAvailable from /proc/meminfo on Linux kernels 3.14 and above 
ZBX-9414
 fixed sorting, displaying and filtering by trends and interval in items, item prototypes and discovery rules 
ZBXNEXT-2791
 synchronised item key helper descriptions and return values from the Zabbix manual 
ZBX-9470
 fixed bug when sometimes value cache would try to cache already cached time based request 
ZBX-9317
 changed proc.mem[] and proc.num[] to return 0 if the specified user does not exist 
ZBX-8513
 changed vm.memory.size[available] key on AIX to return the sum of free and cached memory 
ZBX-8993
 added check for a valid reference of a global regular expression for snmptrap[], log[], logrt[] and eventlog[] items and logeventid(), regexp() and iregexp() trigger functions 
ZBX-8698
 fixed "Unlink and clear" button being displayed when cloning or full cloning host or template and fixed spacing between "Name" and "Action" in "Linked templates" block in template edit form 
ZBX-9018
 fixed updating of "config" table in Administration -> General pages 
ZBX-9002
 fixed log file locking during logging 
ZBX-8943
 fixed script ordering when using backslashes in popup script menus 
ZBX-8922
 fixed form element positioning issues in host add/edit form 
ZBX-8934
 removed translation for the bytes unit prefixes (KB, MB, etc) 
ZBX-8888
 fixed history.php showing data for 11 more seconds than the defined interval 
ZBX-9005
 fixed aggregate item check to make forth parameter not mandatory when third parameter is set to 'last' 
ZBX-3437
 fixed Windows agent to use the configured timeout option when establishing TCP connection 
ZBX-8542
 improved performance and reduced configuration cache locking when evaluating trigger expressions 
ZBX-8470
 fixed possible crash condition in agent, proxy and server daemons where a memory corruption might occur during module unloading 
ZBX-8780
 removed hover effect from readonly and disabled fields 
ZBX-8844
 fixed testing LDAP authentication 
ZBX-8851
 added "-1" and "0" as allowed values for "max_execution_time" and "max_input_time" PHP configuration settings 
ZBX-8720
 fixed resolving of macros in graph names when graph name contains strings similar to macros 
ZBX-6163
 added session restoring to MySQL connections in case of losing connection to the database 
ZBX-8761
 fixed potential lockup if signal is received during message logging 
ZBX-8837
 added bypassing of DNS resolver cache on Windows systems for net.dns items 
ZBX-8660
 fixed API to disallow deleting of discovered items, triggers and graphs, and add validation so that only allowed fields of discovered entities can be updated 
ZBX-8728
 changed item key parameter parsing to use dynamic buffers for parsed parameters 
ZBX-8713
 improved screen element resource parameter labels 
ZBX-8643
 fixed performance problem in action configuration pages 
ZBX-8545
 rewrote net.tcp.listen for Linux kernels 2.6.14 and above to employ the kernel NETLINK interface. Old method of information retrieval also improved 
ZBX-8796
 added get_process_info_by_thread() function prototype and renamed server_num, process_type and process_num local variables to eliminate conflict with the local ones 
ZBX-8763
 fixed log message printing to syslog and undefined type log if debug level 5 is set 
ZBX-8671
 fixed missing existence and permission checks for hosts and host groups 
ZBX-7176
 removed empty space in icon buttons and removed help icons from pop-ups 
ZBX-8736
 added validation of timestamp values received by the server and sent via zabbix_sender 
ZBX-8560
 fixed web scenario HTTP proxy field placeholder content not fitting into input field 
ZBX-8570
 fixed colons in frontend filters 
ZBX-8659
 fixed graphs in screens not respecting "Show legend" setting when in dynamic mode 
ZBX-5166
 replaced '-' with '\-' in man-pages 
ZBX-8391
 added stronger command-line parameter validation, revised help and version messages, revised man-pages for Zabbix server, proxy, agent, sender and get utilities 
ZBX-8658
 made various changes to ODBC related m4 scripts to improve readability and library function availability

Installation and Upgrade Notes

Installation

See Zabbix Manual for full details.

Upgrade

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.

Commercial support

Zabbix Company provides a full range of Professional Services. We also provide trouble-free Upgrade Service for easy migration from earlier versions of Zabbix. Please contact Sales for pricing and more details.

References

Zabbix 2.5 Manual

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