Release Notes for Zabbix 4.0.0alpha5

Zabbix Team is pleased to announce the availability of Zabbix 4.0.0alpha5.

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 4.0.0alpha5. 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-4313
implemented keyboard interaction in context menus
ZBXNEXT-4426
added option to execute cached passive checks at the current time
ZBXNEXT-4417
added real time export of events, history and trends in newline delimited JSON format
ZBXNEXT-4374
implemented the widget configuration fields clearing when changing the type
ZBXNEXT-4119
implemented tag based permissions
ZBXNEXT-4045
implemented maximum size for graphs in widgets
ZBXNEXT-4340
added kiosk mode for dashboard
ZBXNEXT-4150
implemented access to interactive elements using keyboard
ZBXNEXT-4149
implemented keybord interaction in overlay popups
ZBXNEXT-4357
added support of "selectTriggerDiscovery" option in trigger.get method
ZBXNEXT-4152
replaced double box select fields with multiselect fields and added filtering by proxy and server only in host list
ZBXNEXT-4273
added default event status colors in themes with option to customize them
ZBXNEXT-4216
added 'copytruncate' log file rotation support for logrt[], logrt.count[]
ZBXNEXT-4144
added asterisk mark and aria-label property to all forms required fields
ZBXNEXT-768
added item unit blacklisting with character "!" in order to disable metric prefixes
ZBXNEXT-4295
added selection of the create images tickbox by default on "Maps import" page
ZBXNEXT-1456
added filter by item discovery status for item configuration view; thanks to Volker Fröhlich for the original patch
ZBXNEXT-3991
added additional params to net.if.* key output for linux base agent
ZBXNEXT-3480
added support of inventory macros in event tags
ZBXNEXT-4175
implemented ability to send email to several email addresses specified as user media
ZBXNEXT-4139
added high contrast light and high contrast dark themes
ZBXNEXT-4247
removed deprecated API methods: user.updareProfile, user.addMedia, user.updateMedia, user.deleteMedia, usergroup.massAdd, usergroup.massUpdate and usermedia.get
ZBXNEXT-970
added more detailed error information to notification message when DB is unavailable
ZBXNEXT-4137
removed green background from cells
ZBXNEXT-4157
added map status summary to be readable by screen reader software
ZBXNEXT-4127
implemented popup displaying in overlay dialogues
ZBXNEXT-1520
increased the maximum Hosts/DNS name character length from 63 to 255
ZBXNEXT-4108
implemented search of problems by trigger name
ZBXNEXT-4143
implemented keybord interaction in top navigation
ZBXNEXT-1567
added item "vfs.dir.count" for counting directory entries
ZBXNEXT-4135
added tooltips for vertical labels
ZBXNEXT-4146
added icons for error and success messages
ZBXNEXT-4156
added option to view graphs items data and multiple items graph data as table
ZBXNEXT-4160
reworked monitoring Discovery screen to show hint info right in the table cell
ZBXNEXT-761
added rules to make dbschema.c, schema.sql and data.sql from schema.tmpl, data.tmpl and templates.tmpl if there is a need to
ZBXNEXT-4186
added ability to adjust colors for new graph items in graph creation form according selected theme
ZBXNEXT-4145
fixed appearance of host column based on number of hosts specified in filter
ZBXNEXT-4118
implemented advanced options for tag-based search of problems
ZBXNEXT-4134
added 'lang' attribute to page body
ZBXNEXT-4181
fixed Zabbix server to accept active Zabbix proxy requests only from allowed address if specified
ZBXNEXT-4181
fixed passive Zabbix proxy to accept Zabbix server requests only from allowed address
ZBX-10576
restructured unixODBC related code, moved it to a dedicated directory
ZBX-3783
added strict validation for proxy.delete() method; proxy cannot be deleted when used in actions
ZBX-11909
replaced company.com with example.com in data.sql

Bug Fixes

ZBX-13542
fixed http steps on template not inheriting hosts application setting
ZBX-13618
fixed wrong variables order in translatable error message
ZBX-13344
fixed trigger based actions having a default "not in maintenance" condition
ZBX-13613
improved a history syncer when backend elasticsearch is not available
ZBX-13510
fixed error of execution "make dbschema" for NetBSD
ZBX-13544
fixed agent crashes when using regex with 'Log' item for Mac OSX
ZBX-13611
fixed lld rules not always saving their state/error message changes
ZBX-13571
fixed regression that resulted in slow history data queries on partitioned tables
ZBX-13490
fixed autofocus in forms
ZBX-13470
improved searching IPMI items by full name
ZBX-13566
fixed create dashboard button size in dashboard list
ZBX-13464
fixed fullscreen attribute included in host context menu links
ZBX-13424
added possibility to select web items as master items and improved copying of dependent items to destination hosts and templates
ZBX-13573
fixed undefined index message changing Action "Acknowledgment operations" from "Remote command" to "Notify all involved"
ZBX-13570
fixed undefined index in API call
ZBX-13331
removed "recovery" property from action.get API method response
ZBX-13309
fixed displaying of Problem/Recovery time
ZBX-13450
fixed server and proxy compilation problem for Solaris 10
ZBX-13458,ZBX-13494
fixed resolving of the macros in map labels for non-superadmin users
ZBX-13526
fixed widget placeholder jumping instead of resizing while dashboard edit
ZBX-13362
fixed potentially wrong rows deleting by housekeeper in PostgreSQL
ZBX-13506
fixed linked trigger is moved to sibling map element
ZBX-13586
fixed trigger-based event correlation - suspend creation of event if no problems are recovered by it
ZBX-13339
improved deallocation of memory
ZBX-13412
fixed JS error and wrong form behaviour when changing item type, type of information
ZBX-13471
fixed contrast in selected item filters
ZBX-13428
fixed long name of map outside go back button in map widget
ZBX-13340
fixed pie graphs displaying incorrect data
ZBX-13257
fixed display of the latest item in Audit log
ZBX-13447
fixed trigger name readability on map in dark theme
ZBX-11994
changed "awk" to "sed" for getting info about "Last Changed Revision"
ZBX-13360
fixed HTML5 placeholder color that previously appeared like actual input data
ZBX-13351
improved OpenSSL error messages
ZBX-13147
fixed inconsistent number on map navigation tree
ZBX-13537
fixed "Inaccessible user" in Dashboard System status widgets acknowledgement popup
ZBX-13472
fixed description of "Server" and "ServerActive" configuration options
ZBX-13455
added frontend error message when templates cannot be linked to LLD host
ZBX-13538
fixed example configuration for Elasticsearch
ZBX-13434
fixed incorrect trigger dependencies being set after copying triggers to multiple hosts; thanks to Kotaro Miyashita for the patch
ZBX-13513
fixed input maxlength for users media of type script
ZBX-13523
fixed error message for empty TCP response in case agent dropped connection because of access permissions
ZBX-12883
fixed incorrect ordering the list of triggers after saving a map
ZBXNEXT-4150
fixed URL display in hint box and focus styles for radio buttons
ZBX-12940
fixed content does not fit dialog window
ZBX-13342
fixed order by query in frontend Maintenance tab
ZBX-13401
fixed successful items mass update with invalid update interval
ZBX-6167
fixed partial updating in maintenance.update
ZBX-13062
banned using of mutex in threads of metrics collection
ZBX-13236
fixed error message of function parameters parse
ZBX-10433
removed inaccurate configuration default values
ZBX-13398
fixed configure script for Debian GNU/Linux "buster" and "sid" to work with PostgreSQL
ZBX-12754
fixed undefined index error in map import
ZBX-13303
improved display of user media 'Use if severity' indicators
ZBX-13166
fixed daily and yearly notification reports not including current day/last day of leap-year
ZBX-13118
improved readability of emails in action log by splitting them multiline
ZBX-13498
added optional MySQL upgrade patch for "problem" table to drop redundant index after another index that can be used to enforce the foreign key constraint has been created
ZBX-13430
fixed use of uninitialized value ttl when elasticsearch is configured
ZBX-13452
fixed Elasticsearch history storage default value types
ZBX-13248
fixed field trapper_hosts to optional for trapper item.create
ZBX-13307
fixed map scaling and position to the widget left side
ZBX-12941
fixed checkbox overlay's position over the checkbox
ZBX-13465
fixed back button style on the sub-maps
ZBX-13334
fixed translations of Widget parameters window
ZBX-6118
fixed poor performance of changing an item on the template which linked with many hosts
ZBX-13454
fixed placeholder in Administration->Scripts form
ZBX-13403
allowed proxy to execute remote commands on agents using encrypted connection
ZBX-13441
fixed crashes in case of failures (e.g. timeouts) during VMware hypervisor discovery
ZBX-12607
fixed performance of map.get API method and map-related views
ZBX-11391
generated an error if expanding LLD macros results in an empty tag name
ZBX-13300
fixed addJsFile() name
ZBX-13030
removed proxy's ability to export unprocessed history data via loadable modules
ZBXNEXT-3581
dropped plain text protocol support and made header mandatory; fixed IP fragmentation handling by including header in Zabbix get request, Zabbix server/proxy passive check request and frontend request to Zabbix server
ZBX-13194
fixed incorrect processing of zabbix[wcache,value,*] internal check
ZBX-13060
added limitation for meaningless server reconnection attempts to incorrectly configured passive proxy
ZBX-13233
added new memory metrics for Linux platform - "active", "anon", "inactive" and "slabs"; thanks to Tomasz Kłoczko for the original patch
ZBX-12643
improved error log message in case Zabbix server database cannot be used due to empty "users" table
ZBX-11720
fixed memory leak which breaks vfs.fs.size, vfs.fs.inode and vfs.dir.size items if compiled with LeakSanitizer
ZBX-13131
fixed truncated multiline text values from network discovery SNMP checks
ZBX-13117
fixed vfs.dir.size with symbol links on Windows
ZBX-12045
fixed inconsistencies in configure -h output
ZBX-13325
fixed trend.get() method with Oracle backend
ZBX-13223
fixed graphs duplication in graph preview
ZBX-13345
removed SID from URL in screen edit mode
ZBX-13055
fixed problems with DNS resolver interface on NetBSD
ZBX-13214
added support of \0 matching group for regsub and iregsub methods
ZBX-13208
eliminated race condition that caused history collection for newly created items to start before preprocecessing steps finished syncing
ZBX-13246
fixed processing of command line arguments which are longer than 2KB for proc.num and proc.mem items on AIX
ZBX-13130
fixed Zabbix proxy not to generate high network traffic when server does not accept data
ZBX-13288
fixed image ghosting for mass update of map elements
ZBX-11422
fixed compilation warnings under OS X 64bit
ZBX-13276
fixed compatibility issue with Elasticsearch versions starting from 6.0
ZBX-13196
fixed setting of transaction error flag in commit operation
ZBX-13221
fixed trimming of values in overlay dialogues
ZBX-13221
added "Timeout" validation in web scenario step overlay dialogue
ZBX-12389
fixed latest data host group filter
ZBX-13119
removed 'empty' button in trigger selection window for map constructor item modal form
ZBX-12661
fixed Low-level discovery of dependent items not working after being edited and resulting in undefined offset error or foreign key constraint violation
ZBX-13254
fixed 'skip' parameter behaviour for log[], log.count[], logrt[], logrt.count[] items in case log files initially do not exist
ZBX-13253
fixed losing the 1st record by log[] and logrt[] items if 'skip' parameter is used and log file initially is empty
ZBX-13275
fixed slow housekeeping of events on MySQL
ZBX-13264
fixed Zabbix agent compilation on OS/X
ZBX-13245
fixed IP fragmentation handling in Zabbix server response to Zabbix proxy
ZBX-13258
fixed misaligned user group permission controls
ZBX-13031
fixed Java gateway compilation without libpcre
ZBX-12963
fixed passing argument to external check item that contain literal $
ZBX-12991
removed default values for "active_since" and "active_till" fields in maintenance.create API method
ZBX-13270
fixed default selection of the required host permissions radio in the global scripts form
ZBX-12758
fixed slow housekeeping of events due to missing index on foreign key
ZBX-11305
fixed color and label for event status on event details page
ZBX-13238
fixed spelling of Elasticsearch
ZBX-13056
fixed incorrect positioning of context menu when it is opened using keyboard
ZBX-13241
fixed memory leak on Zabbix server when executing remote commands through proxy
ZBXNEXT-4139
fixed displaying of the eventlog severitites and severities in trigger map element
ZBX-13178
fixed ipc_path value in error message
ZBX-12251
fixed possibility of trigger status getting stuck in PROBLEM or OK state due to transaction error in history synchronization, added deadlock to a list of recoverable errors
ZBX-12251
fixed possibility that new history values are lost and not processed by Zabbix server or Zabbix proxy due to recoverable transaction error
ZBX-12996
fixed radio button and label inconsistency in maintenance period configuration
ZBX-12895
improved performance of DB patch for updating data in the alerts table
ZBX-12082
fixed possibility to select triggers with same name in multiselect
ZBX-12983
fixed compilation warnings under Windows
ZBX-10578
fixed redundant init_result() calls; thanks to MATSUDA Daiki for the patch
ZBX-12793
fixed system compiler checks during source configuration
ZBX-11970
fixed style for some enumerators and structure type declarations

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 4.0 Manual

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