This documents the major changes between releases

3.15.0 ???
    NOTICES:
    ODW Graphing pages have been removed as it was little used and superceded by the interactive javascript graphs
    check_http_authentication option change: -T now specifies text to search for as it previously clashed with -t for timeout

    FEATURES:
    New SNMP interface poller check now uses a single active check to poll all interfaces at once, reducing
      CPU and memory usage by 70%. Gathers information about unicast, broadcast and multicast packets
      Notes: 
        * Errors and Discard services no longer go into a failure state if interfaces are not enabled and gathering data
        * Absolute throughput performance data now returned in 'bps' instead of 'b'. This may affect
          ODW reporting if you filter by this unit of measurement

    ENHANCEMENTS:
    Viewport details now include contextual menus if authenticated and keyword has it defined
    Enhance Nagios to process check results in time order
    Stopping Nagios during processing of check results now exits cleanly
    Nagios now writes active check results and passive checks directly to spool directory, reducing one I/O
      move operation
    Allow the checkresults directory to be moved more easily
    Allow updating of default interface thresholds via opsview_web.yml file
    Mass rechecks only lists services that are active types
    Allow objects.cache to be moved more easily
    New cascade option for passive service checks, to support single plugin returning many results
    Passive service checks allowed to define number of failures before alerting
    Allow logging of all REST requests for playback
    Added swap thresholds on check_memory_solaris (thanks to Michael Caplin)
    Reinstated 'Record Output Changes' options (stalking) as servicecheck advanced option
    Perl libraries now expected in /opt/opsview/perl. Slave systems may have issues upgrading if you have updated perl modules
      in /usr/local/nagios/perl
    Small performance improvement to avoid writing Nagios configuration service templates for services with no relevant host attributes
    Start Opsview Agent when sending Opsview to slave
    Rewritten check_dnsbl to use Nagios::Plugins rather than the deprecated utils.pm

    FIXES:
    Fixed ODW's seconds_not_ok_scheduled when overlapping downtimes occur (was only calculating first one)
    Fixed mrtg-rrd.cgi when inputting data by form (thanks to Jo Greene)
    Fixed nlcat dieng on line 121
    Fixed cosmetic issue on Safari when entering downtime values
    Fixed create new notification profile page
    Amend check_snmp_linkstatus MySQL table type from MyISAM to InnoDB  for improved performance
    Fixed system preference access for NetAudit module email address on slaves
    Fixed event filtering by date where incorrectly searched on UTC time
    Fixed opsview database backups to include the full db schema to allow restores to work correctly
    Fixed Nagios debug logging
    Fixed master server running host checks when it wasn't meant to be
    Removed requirement on a MIB having to have an enterprise type before being promoted
    Fixed Host Interfaces edit page where max SNMP message size and tidy ifDescr settings were lost when 
      saving on host edit page
    Fixed Host Interfaces status page where different max SNMP message size and tidy ifDescr level used
    Fixed access to info/internal wiki URL's using names, e.g. /info/host/name/<hostname>
    Fixed possible Nagios segfault when deleting downtimes
    Fixed breadcrumbs from graph page to ignore service parameter
    Fixed not being able to specify the timeout correctly on check_http_authentication
    Fixed SNMPv3 privprotocol not being understood correctly by cfmaker in mrtgconfgen.pl
    Fixed error on slave startup script on Debian where mysql was required
    Fixed event view listing events twice when filtering by multiple keywords with duplicated services
    Fixed event REST API if filtered by hostgroup that did not exist
    Fixed opsview-agent startup message
    Fixed sync_cluster_node_status when nothing to sync
    Stop dying when nagios user's profile not set correctly - show a warning instead. Force profile to be sourced in opsview-web

3.13.2 30th November 2011
    FEATURES:
    Support for Solaris 10 using OpenCSW packages.
      See http://docs.opsview.com/doku.php?id=opsview-community:solaris-installation

    ENHANCEMENTS:
    Allow nlcat to search within x logs y days ago (-n y -e x)
    Increate default Nagvis URL limit from 1900 chars to 3000
    Email notifications now display data about a host's host group hierarchy
    Allow ability to change email template
    check_opsview_slave_cluster now propagate multi line error messages back to master
    Allow service checks with blank check periods to inherit from host
    Added in check_nagios_check_spread for watching how many service checks run in last minute on an opsview server
    Added ODW diagnostic tool for dumping portion of database
    Added ODW tool to fix issues with services with incorrect acknowledged states
    Improved help text on check_aws_ec2 and check_aws_ec2_instances
    Applied patch on check_snmp_linkstatus to reduce the number of 'database locked' messages at busy times (thanks to Luca)
    check_snmp_linkstatus can use a MySQL backend database rather than SQLite - see plugin help for details

    FIXES:
    Fixed interactive graphs displaying times in UTC instead of server timezone
    Fixed check_snmp_linkstatus for better handling of devices that do not have high speed interface speed OIDs
    Fixed IE7's host group menu options in the host group hierarchy configuration page. It still sometimes
      interprets a click on the menu as a drag event, but cannot seem to overcome. This works fine in IE8 and IE9.
    Improved drag of host group hierarchy configuration page where an ajax call is not made if dropped onto
      the same parent. There is still a flicker occasionally in IE7
    Correct SLES slave RPM prereqs
    Fixed string formatting bug in utils/parse_retention
    Fixed install error seen on RPM packages for opsview-web upgrades
    Fixed host template edit page where all referenced hosts removed
    Fixes for double proxying without forcing X-Forwarded-Hosts changes at Apache level
    Fixes for check_snmp_memutil to use warning and critical limits correctly; swap limits split off from real mmemory limits
    Fixed opsview-agent running as nagios user
    Fixed IE9 graphs not displaying correctly
    Fixed for perl arch-specific library directory not being found correctly
    Fixed contextual menu for hosts where incorrect "Access denied" is shown when using only keywords for
      access control. WARNING: The URLs for /info/host/{id} are now based on the id of the runtime host object, not
      the opsview host object
    Fixed security issue where wiki comments were changeable by any authenticated user
    Fixed possible problem with mysql indexes not finding correct objects in runtime database (thanks to levfpt and luca)
    Fixed timeout of 11 seconds (increase to 240) when using 'invert plugin results' on a service check
    Fixed typo in check_opsview_slave
    Fixed Nagios not deleting old check result files

3.13.1 13th October 2011
    NOTICES:
    The old PDF reports under the History menu option have been removed
    REST API responses now default to returning time values in number of seconds since epoch. You can get
      older behaviour by setting a URL parameter of format_datetime=1, which will return back in the system timezone.
      This affects /rest/downtime, /rest/status/service
    Commands for notification methods will automatically have invalid shell characters removed which may break
      notifications if used as parameters

    FEATURES:
    ENHANCEMENTS:
    Halved the time of reloads on systems with a large number of contacts
    Over 75% improvement in time taken for post-reload job in ndoutils_configdumpend
    Added /rest/graph for performance data via REST API
    Added /rest/event for event data via REST API
    IE9 is now an officially supported browser
    Updated check_snmp_apcups to include more metrics in performance data
    Updated check_snmp_linkstatus and query_host to support high speed interfaces over 1Gb/s
    Include nagios_acknowledgements in db_runtime dump_status
    100% performance improvement of object creation in Opsview Web (thanks to C.H.Kang)
    Added more debugging for SNMP communication from Host edit pages
    Amend slicehost check to output WARN not CRIT when 'Service temporarily disabled'
    Removed call to redhat-lsb in opsview-agent startup script as not required
    Allow status.dat to be moved more easily (OPS-1677)
    Added 'CONNECT' method to check_http for checking web proxies (patch by 'Frank4DD')
    Added in a nagios/etc/local.d directory for local nagios customisations (macro, timeperiods, etc)
    Allow MRTG forks and refresh rate to be specified within opsview.conf (OPS-310)
    Added host and service state type to /status/service REST calls
    Added host state_type and duration to /status/host REST calls and provided filtering of these states
    Added host and service state type data and host state_duration data to old status XML calls
    Added /rest/runtime/performancemetric for searching available performance metrics in runtime database
    Added /rest/runtime/service for searching available host or services in runtime database
    Added service level wiki comments and ability to direct to own wiki
    Added server_timezone to /rest/info REST calls
    Added includeextradetails to /status/host REST calls
    Added new metrics to check_nagios_stats plugin (active and passive service checks last 60 mins,
      MAX and AVG active service check execution time)
    Improved error message for import_runtime when a reload wipes the nagios_programstatus table
    Included validation for notification methods to remove invalid characters
    Added support for avg_execution_time, max_execution_time, num_active_service_results_hour, and num_passive_service_results_hour to /rest/serverinfo REST calls
    Improved slave checking for NSCA failure by running diagnostics automatically for troubleshooting.
      Warning: This could raise a critical alert the first time, but this should resolve itself for the next run

    FIXES:
    Fixed host group hierarchy configuration screen
    Fixed hover over colour when dragging host group onto an empty leaf host group
    Fixed MRTG list page to not refresh
    Fixed SNMP communication when device returned a blank sysDescr value on host edit and host interfaces pages
    Fixed validation of duplicated host attribute values
    Fixed maintenance page file name used by Apache error handler (/usr/local/nagios/etc/maintenance)
    Fixed occasional host attributes ARRAY(0xZZZZZ) error (OPS-1663)
    Fixed '[[: not found' error in set_profile on install/upgrade
    Fixed /var/run/opsview permissions not being reset correctly
    Fixed debian postinst output when checking database access
    Fixed cases where the opsview database name is changed from the default opsview in the DBIx::Class models
    Fixed 'check_opsview_sessions' to count active Opsview sessions correctly again
    Fixed 'notify_by_email' hanging on some systems when run by nagios
    Updated check_snmp_apcups to fix bad performance data output for battery runtime
    Reduced amount of "Couldn't process packet" messages from NRD in opsviewd.log
    Fixed bug in acknowledgements where sticky and notifications were not respected correctly in UI
    Fixed check_snmp_perfstats to run with SNMP v5.4.3 and newer (thanks to Alan Wijntje)
    Fixed bug in nagvis config generation when it resides in a different filesystem. Added tests to capture nagvis changes
    Fixed security of wiki comments which were not being checked against access controls
    Fixed bug in check_snmp_loadavg plugin which were not accepting load avg parameters
    Fixed bug where a user without CONFIGURESAVE was able to list all roles in the user preference page
    Fixed bug in check_snmp_linkstatus for 'noSuchObject' when checking for high speed interfaces
    Fixed opsview-slave packages (rpm and deb) creating required initial directories
    Fixed generated slave crontab for rsync task from introducing cron scheduling error
    Fixed NDOutils bug with ndo2db where multiple HELLO connections cause memory leak

3.13.0 27th July 2011
    NOTICES:
    Solaris on sparc architecture is no longer supported
    The old XML status API no longer has the "highest" state at the host group level nor in the services list summary - this is replaced with "computed_state"
    The downtime REST API no longer uses the hostgroupid, hostid or serviceid URL parameters as a shorthand for hg.hostgroupid, hst.hostid, svc.serviceid
      when submitting downtime - you must use the full parameter instead

    FEATURES:
    REST API extended to include:
      * Status information summarised by host group
      * Status information summarised by host
      * Status information by service
      * Status information summarised by viewport
      * Acknowledgements
      * Mass rechecks
    Added check_opsview_services plugin to monitor unhandled services
    Added check_selenium plugin to run and monitor perl test cases generated by the Selenium IDE.
    Added inheritance of arguments to host attributes from the default attribute configuration (contributed by Capside)
    Support for RHEL6 and Debian Squeeze

    ENHANCEMENTS:
    Changed behaviour of 'check_snmp_interfaces' and 'check_snmp_linkstatus' plugins. SNMP or network errors now result in an UNKNOWN status rather than WARNING or CRITICAL
    Host interface screen now shows throughput in bps (a reload is required for the new data to be graphed)
    Host "resolve service checks" page now includes multiple service checks information (contributed by Capside)
    Turned down the font size of handled/unhandled labels and fixed size of table
    Added host attributes expansion to host check commands and timed exceptions
    Performance viewport defaults to 1 month
    Allow for nmis rsync between slaves within a cluster to be run at different times
    Allow commas to be used for full name of contacts
    Improve check_snmp_interfaces (Interface Status) to work across more devices
    Hosts added to runtime.opsview_viewports table and columns renamed
    Events view filtering by keyword includes host state information now
    Audit log messages now show where a user has logged in via (web, REST API, RSS, old API)
    Opsview configuration DB backup now excludes temporary data, including current sessions
    REST API allows switching of content type via a URL parameter, so now supports JSONP via cross domain <script> tags
    REST API allows login via authtkt
    /rest/serverinfo includes each monitoringserver's activated value
    Host unreachable is now considered to be handled
    Host group summary and viewport summary now has a computed state which represents the highest host or service state associated
    opsviewd will restart ssh tunnels if the ports cannot be forwarded on the initial connection (note: will not be used with ssh versions less than 4.6p1) (OPS-1620)
    Amend slave node plugin to check forwarded ports on slaves are open (OPS-1620)
    When upgrade lockfile exists, say so when import_runtime -v used
    Allow create_monitor_pack to parse argument syntax and add any referenced attributes
    Set syslog "Successfully connected to database" messages to respect the ndo2db_debug_level parameter, to reduce amount of syslog messages
    Display helpful information about roles with all keywords, when defining related roles in the keyword edit page
    Configuration generation speed improvement of 60% when using lots of keywords
    New switch on nlcat to remove common entries from nagios log file
    Added in new util: 'copy_host_attributes'
    Allow setting of host check_command to NULL in import excel spreadsheet
    Updated RANCID module name to Netaudit for new installs
    Added easyXDM 2.4.15.118
    Improve how old NMIS reports and rrd files are removed, and reduce time limit from 730 days to 365
    Initial installs now contain multiple service checks for Unix filesystems and Windows drives

    FIXES:
    Fixed notification profiles losing a keyword selection when role has all_keywords but role is not specified in keyword's object list
    Fixed bug where saving a host template would reorder the host templates on the host
    Fixed listings for downtimes when more than 50 rows returned
    Downtimes at HH are prefixed by host group name where the request was made, not each individual host group name
    Fixed check_snmp returning graphing data for timeticks type values
    Fixed Test SNMP connection on host edit page
    Fixed performance viewport always returning no items
    Increase rsync_nmis_database bandwidth usage and also use incremental rynsc transfers
    Make use of ionice and renice (if available) when running rsync_nmis_database to reduce load on server
    Fixed events view captions and information box for hosts in timeline
    Fixed viewports so now displays public keywords for logged in users with VIEWSOME access
    Fixed viewports to not show keywords without access in drop down list
    Fixed SNMP polling configuration generation for check_snmp, when doing a string comparison
    Fixed slave checking when NRD not configured on upgrades
    Fixed Nagios bug re: retention of display_name and host alias, rather than reading from configuration
    Fixed installation of monitor pack when new plugin included
    Fixed possible bug with epoch time when importing into ODW
    Fixed cluster checks erroring on ssh banner between nodes
    Fixed check_snmp_linkstatus for when two checks run and complete within 30 seconds
    Fixed opsview-agent use on OpenVZ systems where wrong agent process was used
    Fixed excessive growth of opsview.session table by trunating session data over 7 days old
    Fixed display of audit logs and downtimes in local timezone rather than UTC
    Fixed viewports so that public keywords are listed correctly. Used to fail to be seen if other roles had this keyword in their access list
    Fixed case insensitivity of username when connecting via REST API
    Fixed bug where deletion of host group with wiki comments fails due to foreign key constraint
    Changed RPM packaging to use Requires instead of PreReq
    Fixed downtimes being recorded multiple times in Runtime database when Nagios restarted during a downtime window
    Fixed German translation for "Resolve service checks" (Tobias Stolz)
    Fixed Nagios CGI XSS vulnerability in config.cgi and statusmap.cgi
    Fixed XSS vulnerability in status pages
    Fixed not being able to disable Modules menu items
    Fixed setting timezone on database connection, caused by changes to DBIx::Class/Catalyst connection process
    Fixed host group graph page to use DBIx::Class model, instead of Class::DBI
    Fixed mass rechecks link when filtering by service handled
    Fixed Alerts - Hierarchy view when filtering by states
    Fixed SIGPIPE (error 141 out of bounds) in check_smtp
    Fixed dpkg upgrades where no MIB files reside in /usr/local/nagios/snmp/all
    Fixed opsview-agent rpm from starting nrpe when chkconfig is disabled on an upgrade
    Fixed Solaris finding SFW logrotate command by adding /usr/local/sbin to PATH (Emilio Scalise)
    Fixed check_smtp and check_tcp from displaying duplicate messages when checking certificates
    Fixed mrtg_genstats.sh to use bash not bourne shell
    Fixed viewport summary and viewport page so that browser back button works properly after visiting those pages
    Correct port use on URLs by check_http_authentication
    Fixed sporadic error where viewports would show time in failure offset by wrong amount based on timezone

3.11.3 7th April 2011
    ENHANCEMENTS:
    Viewports enhanced for multi-tenancy environments:
      * Individual viewports can be configured to be public access
      * Otherwise controlled via keyword access in a user's role
    Keyword list page now displays related objects and includes a link to status page, to see affected services
    Amazon plugins now allow you to specify which region it is run against

    FIXES:
    Fixed SNMP test for a host used as a slave
    Fixed startup script for opsview-web for a start() when already running (OPS-1551)
    Fixed send2slaves on Solaris platform
    Fixed viewport summary filtering of keywords when logged in with specific keywords
    Fixed viewport summary listing keywords with no services
    Fixed notification via keywords when all_keyword was selected at the notification profile
    Fixed formatting of object information where the display page doesn't show the same as the edit page.

3.11.2 31st March 2011
    ENHANCEMENTS:

    = Scheduled Downtimes
    New DOWNTIMESOME and DOWNTIMEALL access points. DOWNTIMEALL users can now create and cancel downtime at host group hierarchy
    Can now selectively delete downtimes, rather than all downtimes on objects
    Nagios changes to allow distributable downtime deletion commands
    Downtime scheduling page now allows jira style notation, such as "+2h" and dynamically updates entered times for simpler entry
    On a reload automatically remove any expired downtime from the runtime database

    = REST API
    Now includes listing, setting and deletion of downtimes, to allow automated changes
    Added REST logging of failures
    Host group parent information includes matpath to uniquely identify parent host group

    = UI
    New alerts view "Unhandled - Hierarchy" based on host group hierarchy. Renamed other alert views
    Display filtering options on status pages

    = Configuration
    List number of notification profiles in Notifications tab for contact edit and user preference pages
    Only display notification profile information in /user/preference if user has NOTIFYSOME access
    Help text when no notification profiles set for a contact

    = SNMP
    Added in configurable SNMP max message size to query host and interface checks
    Added in a device scan lock on check_snmp_linkstatus to prevent simultaneous multiple scans
    Remove some specified words from device interface ifDescr information to reduce instances of duplicate interface ids being used

    = Cluster Checking
    check_opsview_keyword extended to calculate percent availability of all services in a keyword - useful for clustered checks
    New check_opsview_cluster plugin to calculate the state of clustered hosts to give an overall health of your host clusters

    = Nagvis
    Remove demo maps from nagvis as the opsview map acts as a working demo

    = Distributed Cluster Slaves
    Use a bandwidth limit of 50Kbps on NMIS rsync tasks between nodes within a cluster to prevent network saturation
    Background cluster node takeover process to avoid nagios time limit of 60 seconds

    = Graphing
    When too many metrics on a page, will remove metric from popup menu when added to page to simplify usage

    = Survey
    Updated survey to include more performance and feature popularity information
    Added more text about survey in System Preferences Updates tab. Show Survey Information box now displays
     information based on Include Survey Data tick box. Removed survey text from welcome page
    Renamed New Opsview Release service check to Opsview Updates on new systems

    = Miscellaneous
    Added 'overrides' from opsview.conf to opsview.sh output
    Monitor Pack framework for installing sets of host templates, service groups, service checks and plugins
    New helper tables for service check and service group information in Runtime db

    FIXES:
    Pass through non-existing host attributes unchanged on service checks
    Fixed host edit page for rancid options
    Fixed check_snmp_linkstatus raising 'UNKNOWN - The requested table is empty or does not exist' on devices that do not support ifAlias.
      Thanks to Christian Leonte
    Fixed URL links to be relative to web apps
    Fixed NMIS stats collection on Ellacoya devices without an alias set on an interface
      Thanks to Chris Coates
    Include 'notes' for services in slave configuration
    Fixed opsviewd not starting up properly if the database was down
    Fixed pid matching for nrpe process in init.d/opsview-agent for Solaris
    Fixed CONFIGUREKEYWORDS access not allowing new keyword creation
    Stop creation of Nagios contact definitions if no relevant access granted
    Made rsync_nmis_database more resilient if process died unexpectedly
    Reordered rsync_nmis_database invocations for slaves on an Opsview reload, to start earlier and avoid possible clashes between nodes
    Fixed cloning of service checks with disable_name_change set
    Fixed /rest/serverinfo which was giving wrong slave node status
    Fixed restarting snmptrapd on slaves when promoting a MIB
    Edit host page did not restrain options based on master monitoring servers
    Fixed layout issues of parents choose box on edit host page
    /rest/config/hostgroup?order=dependency traverses the tree, rather than ordering by level
    Allow IE8 to display Opsview web pages within an iframe on a different domain
    Fixed bug with service check "SNMP Trap - Link State" where exceptions were raised for other traps
    Added 'net-snmp' as a build requirement on SLES to create check_snmp binaries
    Fixed reloading image for Opsview Community edition

    NOTICES:
    There have been URL parameter changes for /status/host. If you use filter=unhandled or state=1, these now filter based on the
     services, not the host. Use host_filter and host_state instead. See
     http://docs.opsview.com/doku.php?id=opsview-community:monitoringui#url_parameters

3.11.1 9th February 2011
    ENHANCEMENTS:
    Host templates edit screen can now update list of hosts it refers to
    "Smart host template removal" to delete host specific monitors with host template removal. An upgrade will set this option
     to off to retain the existing behaviour
    Changed flapping values to default Nagios, to reduce possibility of flapping start and a smaller window before flapping stops
    Performance improvement for NDO inserts of host check results, now done in a single insert (thanks to Michael Friedrich @ Icinga)
    send2slaves now runs in parallel to all slave systems, reducing upgrade times for multi-slave distributed systems
    send2slaves now confirms that nagios binary runs on slave after sending new executable
    Added CSS class for allhandled items in a viewport summary
    Changed default Network Map Layout to Circular
    Reduced length of time files are kept in nagios/var/log from 20 weeks to 5
    Amend order of Solaris linking flags to reduced number of unnecessary dependencies in binaries

    FIXES:
    Fixed memory leak in NRD::Daemon which caused import_slaveresultsd to increase its virtual memory size
    Force single instance of Solaris packages rather than allow in-place upgrades
    Fixed database install and upgrade scripts for Mysql 5.5
    Fixed discrepency between metric name from service's performance data and the RRD stored name
    Fixed performance viewport for metric which had all values as null
    Fixed IE7 errors on performance viewport and status viewports and interactive graphs
    Fixed help output on check_snmp_loadavg
    Fixed math calculations in check_snmp_memutil for warning and cricital limits
    Minor updates to debian control file
    Cater for zones on Solaris in opsview-agent init.d script
    Fixed copyright years

3.11.0 25th January 2011
    FEATURES:
    Support for SUSE 11
    New slave results mechanism with the following improvements:
      * ability to send results with multiline plugin output
      * 16K limit on amount of data sent, so long plugin results are passed up
      * performance improvement for uploading of results by up to 50% when sending a large number of results
      * result queuing on the slave, with discards for results over 1 minute old
      * results written to checkresults directory, cutting out a Nagios processing loop
      * transactional results, so if a sending failure occurs, whole transaction is aborted
      * dynamic preforking and expanding of number of servers on master as more slaves are created
      * timestamp now based on client send time, not server receive time
      * flexible sized packets, so only amount of data necessary to transfer
      * ability to switch to old NSCA mechanism if desired
      * check_opsview_slave_node returns CRITICAL if NRD not working, with error messages and statistics
    Add in passive slave functionality to allow for results coming from a nagios system not set up as an Opsview slave


    ENHANCEMENTS:

    STATUS USER INTERFACE
    Status screens now display multi line output
    Status view by service: make the host link a "smart link" by going to full list of services if not all services currently listed
    Viewport summary list and cells displays a handled icon if all hosts and services within the viewport are handled. This
      means a user can tell if the viewport requires further investigation
    Allow page title to be amended on viewport summary pages, to have custom viewport summary pages
    Can remove top header by adding include_header=0 to URL
    Added breadcrumb navigation to include host object, and added to interactive graph pages, for easier navigation

    CONFIGURATION USER INTERFACE
    Access to monitoring objects now controlled at roles, rather than at contacts. This is easier to manage
      for systems with lots of contacts with similar profiles
    Keyword edit page now allows filtering of service checks based on hosts selected, to simplify choosing of related service checks
    Can now choose "All keywords" as list of objects for notification profiles and roles for simplier configuration
    Role edit page with tabbed interface
    Added 'Date Format' system preference for Nagios CGIs
    Monitoring server page displays the list of roles associated with it
    Convert audit logs to use DBIx::Class for faster responses in large systems
    Reduced size of roles list page if lots of contacts in system
    User preference page no longer shows all the different roles available, only the user's
    New keyword for from parameter, so that edit object can return to default list view

    REST API
    API version number now based on Opsview's version number
    Added monitoring servers to list of object types, but read-only.
    Added a serverinfo to return back general information including list of monitoring servers, nodes and status/latency values
    Added easyXDM library for cross domain REST communication
    Added icon path to image in host serialisation
    Added some response data when deleting an object via REST API
    Complex search available via json_filter
    Catch unexpected errors in delete via REST API, for better diagnostics
    Errors returned via JSON are now forced to be stringified
    Mass object changes are now transactional
    API has a synchronise parameter, so you can delete all other objects not in your original list
    Can request a one time login token for logging into web browser
    All JSON values returned are forced to be string values
    URL parameter of order=dependency will return list of objects with "most dependencies" at the bottom.
      Available for host groups and service checks

    NAGIOS
    All keywords are created as contact groups within Nagios

    GRAPHING
    Display scale for performance data with uom=bytes to base 1024
    Automatically change y axis unit options list if uom (based on the first performance data point) is bytes
    Hover over plot point now displays the automatic value and the raw value
    Graphs: empty fields in Add Series will trigger a search - hit delete to get a list
    Graphing: Allow some default values to be changed in opsview.conf

    EVENTS VIEW
    Only have 1 JSON update while scrolling requested. Do not change centering of timeline if hidden, to reduce JSON calls
    Change of settings now resets refresh timer. New URL parameter: show_timeline to hide timeline if required
    Default for time line controlled via system preferences
    Added support for markdown filtering from plugins

    ODW
    Import speedup by another 20%: reduced unnecessary queries + multi-valued inserts (partly contributed by Capside)

    DISTRIBUTED MONITORING
    As part of send2slave, restart reverse SSH tunnels to ensure is running with latest port redirects
    NSCA: Allow some options to be changed from opsview.conf

    OPSVIEW VIRTUAL MACHINE
    Add (commented) rewrite rule to the shipped apache conf file for easier access to webmin console

    CATALYST FRAMEWORK
    Converted web ACLs to use Catalyst Action Roles
    Added extra ACL: CONFIGUREKEYWORDS
    Set Class::DBI database connections to automatically reconnect
    Updated all thirdy party perl modules



    NOTICES:
    Keyword name restrictions are now enforced. The upgrade script will convert any invalid characters to underscores.
      See http://docs.opsview.com/doku.php?id=opsview-community:upgrading:keywordnamerestrictions for more details



    FIXES:
    Fixed servicegroup popup list for service check new page. Will migrate service checks without a service group to the first group
    Fixed systempreferences changes setting configuration status light
    Fixed showing welcome page when first logged into Opsview for admin user
    Fixed default value for auditlog's username column
    Fixed ambiguous term for hostgroup status query
    Fixed cron import_runtime errors from not having profile run
    Fixed SEGV when removing downtime by IP address
    SNMP polling of devices that return strings for numeric data are not converted to numeric information correctly (OPS-1429)
    Fixed header bar's curved edges when opsview not anchored to root
    Fixed performance viewport when opsview-web not anchored to root
    Fixed menu font size when looking at Network Map
    Fixed security issue where an authenticated user can view other user's notification profiles
    Fixed viewport page where links from viewport summary was not correctly filtering on failures
    Fixed check_reqs requesting libexpat when alredy installed on debian
    Increased Template Toolkit's maximum iterations limit
    Fixed bug where changing the plugin name did not update the plugin help text (introduced by XSS fixes)
    Show nagconfgen errors to stdout if a module dies
    Fixed list of hostgroups in the Events options panel for users that have all_hostgroups set
    Disallow spaces in host configuration page Hostname/IP field
    Fixed opsview_sync_ldap for keywords
    Fixed service check edit screen not storing when disabling all notification options
    Fixed size of version information on login screen
    Fixed webkit display of y axis lines not lining up correctly in graph
    Fixed 500 web server error if reload error messages were not linked to a monitoring server
    Fixed bug where realms were being displayed on user preference page. Can now change fullname field on contacts page
    Fixed link from /status/host page for services in table header
    Force plugins to be ordered by name in service check edit page
    Fixed excessive logging for import_perfdatarrd when errors found in perfdata parsing
    Fixed Nagios import of contacts
    Fixed large amount of data failing to get into runtime database (OPS-751)
    Fixed error in import_runtime if an object is created, downtime is then set and host is renamed within the same hour
    Fixed Nagios migration tool where host emails named differently
    Fixed REST API returning id for snmptraprules related to a service check
    Removed setting max_msg_size for check_snmp_linkstatus as some devices were not responding correctly with this set
    Fixed unnecessary extra json call for events data on initial page load
    Events view: Fixed refresh button, so no longer refreshes when auto refresh is off. Fixed respecting of auto_refresh=1 parameter
    Events view: Fixed new event where date time cell not coloured correctly
    Fixed mass-rechecks and mass-acknowledgements links when viewed from a host group page to filter correctly
    Fixed assumption of host id=1 was Opsview master
    Fixed Nagios bug where a host failure would cause lots of alerts to be raised for services on that host (OPS-1473)
    Fixed REST API where authentication into /rest/reload was using cookie rather than headers
    Fixed opsview_diag for coping with a schema change
    Fixed check_memory_solaris to cope with systems with no swap devices assigned
    Fixed possible error if nagiosgraph.log doesn't exist at startup
    Cleanup of debian packaging of init script for opsview-web
    Fixed logic for upgrade process so that new files are sent to slaves first, then a new configuration generation is done,
      followed by a software restart on slaves with no restarts on the master (packages will restart appropriately)
    Fixed possible bug where check_mysql_performance could have a bad path to save state data (thanks to Olegario Craig)
    Fixed Nagios bug where hosts with multi-line output were not parsed correctly
    Fixed bug whereby modules could not be cloned correctly
    Add 'multiplier' and 'base' to RRD graph options
    Fixed bug in check_procs where regex input with a pipe symbol was being output causing problems for Nagios' parsing of perf data
    Fixed configuration for Alfresco Share Connection service check by setting Accept-Language (thanks to Robin Bramley)
    Fixed redirects on Nagios CGI host page so that Schedule downtime for all services on this host redirects to right Opsview page
    Made import_runtime more resilient in situations where a bad hostname or servicename were found in Runtime database


3.9.1.5340 8th November 2010
    FIXES:
    Fixed slight visual glitch when long text is in Actions button
    Fixed upgrade of ODW database when ODW is MyISAM type
    Fixed inline wiki when only spaces entered

3.9.1.5328 8th November 2010
    FEATURES:
    UI updates to page headers (to increase amount of visible area - contributed by Capside) and menus
    Performance data updates now run asynchronously, reducing gaps in graphs. You will need to manually create a service check
      on the Opsview master using the check_opsview_async_imports plugin with an argument of "perfdatarrd" to monitor the usage of the directory.
      See https://docs.opsview.com/doku.php?id=opsview-community:performancedataimports for details of how this works
    Performance data in ODW is now summarised on an hourly basis, to allow fast queries of performance data for reporting
    ODW now defaults to import for all new systems
    Integration with SolarWinds SNMP trap forwarding, so you can forward traps for processing on Opsview master or slaves
    Performance improvements in post-reload tasks. Now status updates happen concurrently so views are up to date, and the duration is
      reduced with more efficient queries
    Performance improvements when querying Events view

    ENHANCEMENTS:
    Added nsca_server_address option to override in opsview.conf
    Allow freshness for stale settings to still work if no notifications enabled
    Allow searching on plugin name in service check list page
    Update message about no interfaces, to suggest clicking Query Host to start the scan
    Graph values are now displayed to a base unit (bytes, seconds) for easier understanding. For example, performance data
      with a y-axis of MB and a line value of 1.3K will now be displayed with a y-axis of bytes and a value of 1.3G
    Viewports now show if a service is in a downtime state, to allow the user to assess the state of a service easier
    Better error message when import_runtime blocks due to upgrade flag (Tony Hunter)
    Upgraded Nagios to 3.2.3
    Added port option into SNMP tab on host edit page, for increased flexibility on a host basis
    Ensure hostgroup commands page downtime is redirected via Opsview web page, so all validation done appropriately (OPS-1396)
    The mass acknowledgements page now gives an option for sticky acknowledgements, to reduce the number of notifications for advanced users
      The Auto Remove Comment has been taken out as this should always be the case
    When acknowledging a host or service from the Nagios CGIs, Sticky is now disabled by default. This is to prevent acknowledgements
      lasting longer than desired. More information about acknowledgements at http://docs.opsview.com/doku.php?id=opsview-community:acknowledgements
    When re-checking a host or service from the Nagios CGIs, Force Check is now disabled by default as this can cause additional checks to
      run in a distributed environment
    When a cluster node recovers, the status information is synchronised from the secondary node to the primary, to ensure that
      the status information is consistent
    check_snmp_cisco_loadavg now monitors Cisco ASA devices, to simplify configuration of monitoring Cisco devices
    Allow synchronous reloads from REST API, so you can have automated restarts of Opsview
    Removed Nagios restart messages from Nagios CGI trends view, to reduce clutter in trends graph (contributed by Capside)
    Can now enable partial ODW importing (statistics) and enable full ODW importing separately, reducing data storage requirements
    Automatically remove trailing spaces in service check names and in host attribute values, to avoid potential issues in Nagios configuration
    Added ability to get data from REST API using JSONP
    Added links to Resolve service checks from host edit page and back again, for easier navigation
    Removed AQL notification method from default install
    ODW now stores summary statistics of number of hosts/services/serviceresults/perfdata per hour
    ODW now automatically cleans up failed imports
    Added feature to RESTAPI for JSONP to return windowname method for cross-site REST calls
    Add icon to Modules menu for enterprise modules

    WARNINGS:
    There are some manual post install tasks required. See
      http://docs.opsview.com/doku.php?id=opsview-community:upgrading#opsview_391
    As the old Opsview API did not clone the enable_snmp parameter correctly and since Enable SNMP overrides Use MRTG and Use NMIS,
      you will need to confirm that this flag is set appropriately for each host. This only affects hosts cloned via the API.
    The REST API now requires setting the content-type and accept headers to get the expected data

    FIXES:
    Fixed new creation of SNMP trap rule type service check redirecting to rules page on create/clone
    Fixed cloning of SNMP trap rules when cloning a service check
    Fixed error from check_snmp_linkstatus where pipe symbols in ifAlias were conflicting with performance data
    Fixed security exposure from NMIS admin script (thanks to C.H.Kang for reporting)
    Fixed incorrect servicegroup modelling, which caused deletion errors
    Fixed Cisco ASA devices using check_snmp_interfaces (Henry78)
    Removed incorrect debug logging of opsview_notificationprofiles
    Fixed permissions on error_pages/handle_error.cgi
    Fixed possible XSS vulnerabilities in web output on admin list pages
    Fix for status.cgi problem when no parameters passed
    Fixed host interfaces screen where used short interface names used
    Fixed return code from opsview-web init script
    Only show Acknowledge link if host/service requires it in popup menu
    Fixed host and host group wiki bulb lights
    Re-engineered check_snmp_linkstatus, due to changes in 3.9.0, to reduce the amount of traffic when rescanning a device
    Fixed "Cannot reload" messages which were missing error details
    Fixed NMIS error output on initial slave install as this can be ignored
    Fixed slave node resync, where it was not getting the correct list of hosts to send the latest Nagios status to
    Fixed bug with submit button when all notification options switched off in notification profile
    Fixed searching for host by name via API
    Fixed Opsview Web 500 error if badly structured data sent in to REST API
    Fixed Nagios trends.cgi from stretching to large sizes (contributed by Capside)
    Fixed bug where Server updated is not updated on Host status page
    Fixed pages=all link on configuration edit pages when using other languages (patch by Capside)
    Fixed central service check event handler configuration being pulled in to a host specific monitors list.
      The upgrade script will remove redundant information at host monitors, so a change to the central service check will be used as expected
    MRTG and NMIS configuration is not invoked now, if enable SNMP is off
    Cloning of Enable SNMP now works on a host, using the old Opsview API. However, hosts previously cloned will not have this parameter
      cloned, so will need to be set correctly
    Fixed UTF8 encoding from Nagios CGIs returned through Opsview
    Fixed visual glitch of background image on forms with a long amount of data
    Fixed 2 small Nagios CGI bugs
    Fixed italics and bold text formatting in host comments
    Fixed bug in REST API when searching by id


3.9.0 28th September 2010
    FEATURES:
    Added new API for configuration data via REST interface at /rest. See
      http://docs.opsview.org/doku.php?id=opsview-community:restapi
    opsview_rest for a command line interface to REST API
    import_json for a batch import interface to REST API
    export_host_template to export host template configuration and all related information
    Added performance viewport with sparkline graphs /viewport/{keyword}?style=performance
    Can now dynamically update viewport style
    Graphs have an export to CSV option
    Added Amazon EC2 monitoring feature
    Added Amazon EC2 Environment monitoring option
    Added Amazon Simple Storage Services(S3) Bucket monitoring option
    Added Slicehost monitoring feature to monitor bandwidth utilization or status of a slice

    ENHANCEMENTS:
    Complain if 'su - nagios' not run when rc.opsview start
    Updated Italian translation file
    Updated tagcloud viewport summary style to display highest failure state
    Removed some dependencies on ksh (OPS-340)
    Add further directories into daily housekeep script (OPS-323)
    Rename backup files appropriately (OPS-1040)
    Allow specifying bind address for Opsview Web
    Amend Apache error page to allow for custom maintenance messages from /usr/local/nagios/etc/maintenance (OPS-1075)
       Note: requires Apache proxy configuration file update.
    Added new 'Opsview Application Processes' check to 'Application - Opsview Master' template
    Added new 'check_opsview_mysql' and 'check_opsview_mysql_performance' for use with 'MySQL DB Performance', 'MySQL DB Connections' and 'MySQL Status' on master server (OPS-1158)
    Updated Nagios Plugins to 1.4.15
    Updated Nagios to 3.2.2
    Updated label for notification methods to say run on "Master" or "Slave", which is not technically right, but covered in
      linked documentation
    Reordered checkbox_groups so that it takes a newspaper column approach (down then next col), rather than text approach
      (left to right)
    New check_slicehost plugin added to check slicehhost status
    Added new check_plugin_output to diagnose plugin errors
    Enhanced check_snmp_linkstatus to catch DB exceptions and create tables if required
    Allow up to 4 arguments for each host attribute
    Allow a default attribute to be set with arguments - this allows a global attribute that can be overridden per host
    Updated import_excel:
      * can set Enable SNMP and Use MRTG
      * can set NONE to have no keywords, host templates, service checks, etc
      * added warning about importing service checks, which will lose existing exceptions information
    Reload now complains if it finds trailing spaces in service check names
    Added unique constraint on servicegroups.name
    Separate hosts and host templates columns in service check list page
    Added unique constraints on SNMP trap rules and host template management URLs. If there are duplicate names during the upgrade,
      the id will be suffixed to make it unique
    Added page numbers to top of configuration list tables
    Allow time period edit page to use cut and paste keystrokes. Added client side validation of timeperiod fields
    Added number of changes since last reload to reload screen
    Automatically convert attribute names to uppercase, otherwise fails validation
    Contacts database backend converted so name => fullname and username => name. This is so that there is consistency with the
      name field always being the uniquely constrained column
    Added a message for contacts that do not have any notification profiles, to remind to create one for notifications
    Added /usr/local/nagios/libexec to PERL5LIB path for plugins that expect that location
    Added port option to many SNMP plugins
    Added index to improve query for viewport summary pages
    Speedup to ndoutils_configdumpend when creating helper tables

    FIXES:
    Fixed query_host when going to slave over a reverse ssh tunnel (Phil Rich)
    Fixed dependencies when using host templates without host defining that service check
    Fixed dependencies when multiple service checks depend on another service check
    Fixed dependencies when multiple service checks used where number of attributes = 0
    Removed listing of multiple service checks from options for dependencies
    Fixed temporary problem where downtime is removed from host/service statuses on a reload
    Do not clear runtime's scheduled downtime table, so state retained over a reload
    Fixed missing command_line field in runtime's nagios_servicechecks table
    Fixed graph load when selecting from more than 10 metrics
    Fixed graph refresh invoking 3 rrdfetches, when it should only be 2
    Stop auto-populated snmp polling label going over 40 chars
    Fixed error creating database when default charset=utf8
    Fixed error messages when running gathering plugin help during upgrade
    Include missed ODW table from nightly housekeeping (service_outages)
    Added help links for RSS fields in contact page
    Ignore nagios/var/spool directory in nightly opsview backups
    Stopped 'Successfully disconnected from MySQL database' messages to allow for syslog 'Last message repeated n times' on connections (OPS-341)
      Note: rsyslog needs to have '$RepeatedMsgReduction on' set to enable repeated message reduction
    Fixed possible vulnerability with invalid cookie values
    Fixed XSS vulnerability on login page
    Fixed bad contact notifications tab when only one notification method is active (OPS-1255)
    Fixed viewport summary keyword list so that only keywords with a service on are listed
    Fixed webexception page so that it doesn't try to do refreshes automatically
    Fixed incorrect eventhandler for cluster node failovers
    Fixed problem where FLAPPINGSTOP messages were not being notified correctly
    Fixed host information/comments page links on contextual menus
    Fixed Nagios CGI displaying no comments if there were any comments with persistent=0
    Added dependency for postgres libraries for opsview-base on Debian for check_pgsql
    Update slave sending results to use 127.0.0.1 rather than localhost to remove name resolution dependency
    Fixed DB upgrades which failed due to useragents primary key column being too large when charset is UTF8.
      Only affects upgrades from Opsview 3.4 upwards
    Fixed web interface where host's Flap Detection and Enable SNMP cannot be de-selected
    Fixed problem where apt-get install would hang for opsview-agent
    Fixed uncommitted flag when deleting a host
    Fixed problem for some SNMP interfaces where interface names contained trailing spaces
    Fixed issue on check_snmp_linkstatus where some SNMP devices returning msg too big errors - now
      uses same technique as query_host so if query_host works, check_snmp_linkstatus should too
    Fixed problem where MRTG links were broken for slave monitored hosts
    Fixed internationalisation for MRTG page
    Fixed on delete cascade for service check dependencies
    Fixed the uniqueness check for notification profiles names per contact
    Fixed missing titles on Nagios cmd.cgi
    Fixed check_snmp_cisco_ifstatus for interface ids that are not sequential (Claus Guttesen)
    Stop generating MRTG configuration for SNMPv3 hosts when MRTG < 2.15.0; put warning message on reload page
    Fixed the missing nagios/var directory on RPM agent installations

    NOTICES:

3.7.2 8th July 2010
    FEATURES:
    SNMP Polling now allows calculations based on rate, rather than absolute counter values.
      Can choose rate per second, per minute or per hour
    New Errors and Discards multi service checks based on SNMP interfaces
      Note: If upgrading, you must add these service checks to hosts or host templates as appropriate

    ENHANCEMENTS:
    75% performance improvement when inserting service check results into Runtime database
      Warning: Upgrades may take some time as new indexes will be created. See WARNINGS below
    New Query Host page, with default settings for throughput/errors/discards
    Updated Host Interfaces page with errors/discards graph
    SNMP Polling allows setting the performance data label - note this will lose history if changed
    SNMP Polling allows selection of "string not equal"
    check_http modified to output search string, hostname and url in 'string not found' message when '-o' option used
    Added link to forums
    Added notice column to auditlogs
    Added a new PASSWORDSAVE access
    Delete old state files left in var/plugins directory
    Updated Opsview favicon
    Updated Nagios Plugins to 1.4.15-release-candidate

    FIXES:
    Fixed bug where notification_interval is 0 but was set to a different value in the generated Nagios configuration
    Fixed import_excel failing to work
    Fixed bug in import_excel where host check command was ignored, and added monitored_by field
    Fixed bug where additional languages were listed incorrect
    Fixed redirection of host screen when cloning a host
    Fixed bug in RSS feed on Sol10
    Correct help output on import_runtime for available options
    Move the inclusion of custom.css from each module to the TT template wrapper
    Add in SNMPv3 privacy password option to check_snmp_sysinfo (thanks to Rafael Carneiro)
    Changed 'Not Yet' acknowledgement text to '-' in viewports when status is OK (green) - OPS-1194
    Fixed autocomplete popup going to wrong location on IE8
    Fixed bug where you could not delete a host where it has an snmpwalkcache in the database. Also affects host comments
    Fixed bug in /admin/host menu where it thought all hosts did not have any status data yet
    Fixed disable_name_change flag on special service checks
    Fixed i18n string for Attributes menu option and service check exceptions page
    Fixed "Show Macro Help" text for host attributes
    Fixed check_http_authentiation to parse args properly
    Fixed check_snmp_linkstatus for Windows servers, which sometimes includes \0 characters
    Fixed links on login page to new websites
    Fixed command parsing and usage on check_snmp_runningproc (OPS-1196)
    Fixed check_snmp_runningproc extension processing (thanks to Killian Faughnan)
    Fixed bug in /admin/host menu where it thought all hosts did not have any status data yet
    Allow check_snmp_linkstatus to have a critical % without a warning % value
    Fixed Exceptions for Service Checks page which missed some timed exceptions if on same host/hosttemplate as a normal exception
    Fixed possible hidden error if check_snmp_linkstatus' cache file is not writeable by nagios user
    Fixed check_ifstatus not accepting version=2c (Brian Landers)

    WARNINGS:
    check_http -o is deprecated as this is the default output from the plugin in a "search string failure" mode
    The arguments for the Interface service check will be converted by the upgrade script due to new errors/discards functionality
    There will be an error in the upgrade script if the Interface service check has been renamed
    There will be an error in the upgrade script if there already are service checks called "Errors" or "Discards"
    Upgrades may take some time due to index changes to runtime.nagios_servicechecks table. You can mitigate this by deleting old
      data first: DELETE FROM nagios_servicechecks WHERE start_time <= (NOW() - INTERVAL 1 DAY)
      If you are upgrading from Opsview 3.7.0 which had the housekeeping bug, you should run the above DELETE, otherwise there will
      be a lot of data to convert. As a rough estimate, about 700,000 rows takes about 5 minutes to convert


3.7.1 28th May 2010
    FEATURE:
    New viewport summary style: cells. This displays each viewport as a cell with the highest failure state within.
      This allows more keywords to be displayed on screen
    New Options on viewport summary page. Can now configure specifically which keywords to display and change the style
    New viewport style: Errors and Host Cells. This displays only errors in the list, followed by a cell for each host
      based on the host status
    New keyword configuration options, so you can associate to hosts, service checks or contacts from the keyword
      edit page
    New keyword attribute of "All Hosts" and "All Service Checks", so keywords only need to be defined for a service
      check or a host, respectively, without a matching keyword
    New host attributes which can be referenced in service check arguments
    Create multiple services based on number of attributes. Converted internally created services into service check definitions
     using multiple services
    WARNING: The Interface, Slave-node and Cluster-node menu options have been removed and are under the Service Checks list now
    Added an opsview-distributed keyword, to view status of Opsview's slaves

    ENHANCEMENTS:
    check_http modified to output search string in 'string not found' message when '-o' option used
    Added a new db_runtime dump_status option, to capture status information only in runtime db
    Added --port option to check_http_authenticated and output retrieved page with --verbose
    Solaris opsview agent now builds from same code as opsview-base
    Swap all remaining runtime MyISAM tables to InnoDB
    List contacts still using a notification method when someone tries to deactivate
    New ODW database installations will use InnoDB engine instead of MyISAM.  A script to convert existing ODW databases will be provided in a later version.
    Amend directory perms on /usr/local/nagios/configs to match other config files
    Link contextual help to new docs site at docs.opsview.com
    Added event handler options at the service check definition
    Added event handlers used by Cluster-node and Slave-node checks
    Slave node event handler now backgrounds when running
    MRTG has been moved from the Monitors page to the SNMP tab. All existing data in hosts and host templates will be moved
     although you cannot use host templates to define MRTG in future
    Redundant code for performance monitors (MRTG was only one) has been removed
    Redundant code for Embedded services (SNMP interface checking, Slave-node and Cluster-node) has been removed
    Notification state on host and services is reset to configuration value after a reload - use scheduled downtime if you have to disable
     notifications temporarily
    Event handlers are also reset to configuration values after a reload
    Removed unnecessary lookup for keyword name in ODW import
    On a slave cluster node takeover, now displays on master server when a takeover has occurred
    On a slave cluster node takeover, now enables notifications for hosts and services, and host passive checks. Disables on a node recovery
    Added Italian (thanks to Emilio Scalise), Swedish and French translations
    Slave hosts now default to having a parent of the master host
    Can now define parents for slave hosts (to allow intermediate hosts between master and slaves in the network topology). Note
      that during the upgrade, all hosts used as slaves will have their parent information removed
    Parent Tree now uses same logic as nagios configuration generator
    Speedup of validation when lots of host groups and service groups used

    FIXES:
    Fixed configuration error when a notification method is assigned to a notification profile, but is
      subsequently deactivated
    Fixed configuration error when a service check is excluded from later host templates if it is a dependent service
    Fixed help output from check_cluster
    Put 'custom.css' on some previously missed pages (thanks to Emilio Scalise)
    Correct math for slab memory in check_memory plugin (thanks to Joey)
    Add missing libmcrypt dependency on Debian opsview-agent package
    Ensure passive checks are not retained over a reload on slaves
    Fixed parents for hosts monitored by a slave cluster - now sets to all nodes, rather than just the first one
    Fixed bug in opsview_master_housekeep not running
    Fixed bug in admin search box when searching within an edit page
    Possible fix for nagios segfault when sometimes cancelling downtimes

    WARNINGS:
    The API will now reject <performancemonitors> attributes. Use the <use_mrtg> attribute instead to add MRTG to a host
    The Interface, Slave-node and Cluster-node menu options have been removed and are under the Service Checks list now
    The checks Interface, Slave-node and Cluster-node need to be associated to each host in order for the services to be
      created. We recommend that on upgrading a system you make the following changes:
      * Add Interface service check into an "SNMP - MIB II" host template, which you can associate to all SNMP enabled hosts
      * Add Slave-node to the opsview master host
      * Add Cluster-node to a "Opsview slave" host template

3.7.0 29th April 2010
    FEATURE:
    Notification profiles - a contact can have multiple profiles to fine tune your notification requirements
    Extended notification methods - can now create your own notification methods, with per contact variables
    New plugin, check_opsview_keyword, to show summarised state of keywords
    New Alert Every Failure option, which respects the re-notification interval. Useful for passive alerts
    New execution dependency, so checks are not run if the dependency has failed. Integrated with existing notification dependencies field
    opsview_sync_ldap will now synchronise the user each time based on the XML data received.
      WARNING: As opsview_sync_ldap now synchronises, access information may change if more permissions have been granted after the initial creation
      WARNING: notification information is now stored in notification profiles and newly created users with opsview_sync_ldap will have no
      notification profiles created

    ENHANCEMENTS:
    Set Nagios' log initial states to always off
    Added new plugins: check_sql_advanced, check_dnsbl, check_aql_sms_credit, check_mysql_performance, check_ldap_sync
    Added check_ldap (was missing on some platforms)
    Improved service and template configuration - better out of the box support for common applications and app servers
    Copy bad nagios configurations into tmp area for diagnosis. Cleanup via daily housekeeping
    Added multiline plugin output to notification emails
    Link between object in status pages to events view and notifications view
    Added acknowledgement for single host or service
    check_snmp_sysinfo returns CRITICAL if agent does not respond (was returning WARNING)
    Added new application monitors for Alfresco, JBoss, Atlassian, Puppet, VMWare ESX, Foundry, Wordpress and JasperReports
    Updated initial database configuration to have two keywords: opsview and opsview-components
    Enable SNMPv3 support in MRTG - must have at least MRTG version 2.15.0
    Added flap detection checkbox to host edit configuration page
    Added /rrdfetch?keyword={name}
    Updated check_snmp_uptime to cope with 32 bit counter rollover (thanks to Mike Dorman)
    Updated check_memory to take account of reclaimable memory NOTE: this may appear to cause a significant change in statistics due to the slightly different calculations used (thanks to Stuart Teasdale)
    Allow RSS users via /atom to authenticate using LDAP or cookie mechanism
    Added new access: CONFIGUREVIEW and CONFIGURESAVE
    Added extra index on runtime.opsview_host_services
    Additional logging from import_runtime
    Improve how PERL5LIB is set on Solaris for finding RRDTool perl libs
    Spanish translations, contributed by Capside
    Updated Nagios to 3.2.1
    Updated login page and enterprise/community logos
    Reduced retention time for nagios_conninfo table in runtime db to 1 week
    Improved ODW importing time by 30%
    Changed UI button on right to be Options or Actions based on type of information

    FIXES:
    Fixed parsing unusual port names  (i.e. with brackets) for mrtg
    Ensure 'custom.css' is used on all admin, graph and cgi generated pages
    Fixed graph's y-units on new graphs with no overview data.
    Fixed graphs not being displayed (only affects new installs of Opsview Enterprise 3.6.0.3920)
    Fixed events auto_refresh not turning off.
    Fixed creation of nagvis.ini.php file on postinstall of opsview-base
    Made graph 'add series' button unavailable for unauthorised users.
    Fixed graph requesting 3 sets of graph data.
    Order rancid vendors by name by default
    Fixed IE bug where the graph drop down menu was hidden under the next graph.
    Fixed status API for /status/hostgroup when querying a leaf hostgroup
    Fixed permissions for Solaris on etc/
    Fixed web UI error when service check no longer exists for SNMP trap exceptions (OPS-572)
    Fixed IE7 bug where page search button was in wrong position
    Fixed date and time provided in atom feeds
    Fixed configuration generation error when service check is excluded where a dependency exists on same host
    Fixed extraneous SMS notifications on master when SMS set to send from master and an SMS number is defined for contact
    Fix to allow check_ldap from nagios-plugins to compile on Solaris
    Fixed listing of all service checks in notification dependency box for new service checks
    Fixed service check edit screen when stale state set to OK
    Fixed notification escalations when SMS notifications defined from master only and monitored on the master for a host
    Fixed quoting issue for SNMP interfaces where interface name contained a single quote
    Fixed validation of required OID field for SNMP polling check
    Fixed soft state dependencies being set based on database value
    Ignore plugin names in libexec/ which have .dpkg-tmp, .tmp or .bak at the end
    Disabled 24x7 timeperiod from being edited
    Fixed events view to respect auto_refresh value off
    Fixed SNMP host query with SNMP v3 devices
    Graphing rollover displays precise Y value with no rounding.
    Fixed graph links so are now url-encoded.
    Fixed display of resolved service checks
    Fixed output of db_mysql when opsview.sh errored
    Fixed bug on DST changeover day (moving hour back) when calculating next valid time
    Fixed utf8 characters for host and host group wiki info
    Fixed some check_radius_ih compile problems
    Fixed call_nmis on solaris as it was using incorrect ps arguments"
    Fixed bug where page search incorrectly adds a "." at end of search parameter (bug in webkit)
    Fixed hosticon_admin to work on png files rather than gif's
    Change name searches for hostgroups to redirect to number id instead

3.6.0 10th February 2010
    ENHANCEMENTS:
    Updated copyright messages with disclaimers
    Increased metric names in runtime.opsview_performance_metrics table to 128 characters

    FIXES:
    Fixed webexception error when interface name have strange characters (**) in them
    Fixed exception error message when process_configs has a failure
    Fixed check_snmp_interfaces for Catalyst 4500 L3 Switch
    Fixed hardcoded reference to opsview db in ndoutils_configdumpend
    Fixed some parse problems with Nagios::StatusLog
    Fixed problem with truncated queue names in check_snmp_weblogic_jmsmsgbridge and check_snmp_weblogic_jmsqueuelength
    Fixed problem with SNMP interfaces that have trailing blanks in the interface name
    Fixed automatic selection of SI units in graphs
    Fixed range for overview graph based on actual values
    Fixed labels for Admin Status and Link Status on Host Interfaces screen

3.5.2 2nd February 2010
    FEATURE:
    Synchronisation of host and services state, acknowledgement, downtimes and comments with slave systems at reload

    ENHANCEMENTS:
    Graphing now has a toggle button for "snap to now". Dragging a selection not including "now" will disable "snap to now"
    Graphing now has a toggle button for "auto scale". When on, uses min/max y-axis based on actual data in main graph. When off, uses
      min/max from overview graph
    Speedup of Nagios CGIs when lots of comments or downtimes in status.dat file
    Module menu generated from database information
    Added Weekly Availability Report by Keyword to available reports. Configured as default initial report
    check_snmp_linkstatus now returns OK if interface admin state is down so you can monitor all interfaces but only alert based on status
     Thanks to Henry for the patch (OPS-947)

    FIXES:
    Fixed possible maximum packet size problem again for check_snmp_linkstatus, when snmpv1 used in fallback from snmpv2c
    Fixed submit button on edit contact page
    Fixed list of host groups, service groups, keywords on non-admin user's preference page
    Fixed small validation error for page navigation search box
    Fixed cleanup of odw.service_saved_state table after each ODW import
    Fixed missing search box on audit log page
    Fixed query_host for some SNMP interfaces from Windows servers
    Fixed number of services per viewport listed in keyword list page
    Fixed y-label orientation on graphing for IE7/8 browsers
    Fixed help message when cloning a host which is a monitoring server
    Fixed glitch where all status listed by service would disappear temporarily over a reload
    Fixed problem when too many hosts were trying to access the same data store file for check_snmp_weblogic_jmsmsgbridge and check_snmp_weblogic_jmsqueuelength
    Embed link for graphs url includes the host information

3.5.1 18th December 2009
    FEATURE:
    Added freshness checking configuration for set freshness times for passive checks
    Added new viewport style for summarising hosts
    Added ability to mark a service check as returning Markdown format, for display

    ENHANCEMENTS:
    AJAX search autocomplete removes host alias if same as host name
    Initial Polish translation by Michal Zyzak
    Updated icons in /graph
    Improve Solaris installation and removal packaging scripts
    Add -v (verbose) flag to import_runtime for when run manually
    Adding log4perl logging for import_runtime
    check_opsview_update plugin returns OK if error connecting to update server
    Converted service check edit page to use tabs
    Increased width of notification dependencies choice box
    Disable host freshness checking as not implemented in Opsview
    Add jira style durations for freshness timeout implementation
    Removed local patches for freshness calculations as core Nagios now covers the distributed setup better
    Increased font size for viewports page
    Added link from "Services failed: 5" to list of those services
    Moved host notifications into own tab on host edit page
    Events view now defaults to filter on HARD states
    Include SUNWsmcmd as a prereq for ALTovbase on Solaris 10

    FIXES:
    Fixed SQL injection in /status/host (OPS-863)
    Fixed javascript vulnerability with stripping of '<>;' characters in downtime, acknowledgements and submitting results (OPS-864)
    Escaped < and > characters when submitting wiki information to host and hostgroup comments
      WARNING: The database upgrade scripts will convert all instances of < and > to &lt; and &gt; in the tables hostinfo and hostgroupinfo
    Fixed Host Interfaces screen for missing images and incorrect layout - reported by Karsten Müller
    Fixed .deb installation order to resolve problem when images were moved from opsview-base to opsview-core
    Fixed Start/End time calendar control in Events view
    Fixed CONFIGUREHOSTS access to save host configuration
    Fixed possible maximum packet size problem for check_snmp_linkstatus (Thanks to Jose Luis Martinez @ Capside)
    Fixed check_memory plugin on Solaris master servers
    Fixed check_swap plugin on Solaris master servers
    Fixed Solaris finding nrpe process when running /etc/init.d/opsview-agent
    Downtimes that are not ended properly by Nagios/NDOUtils are now caught by import_runtime. This prevents incorrectly marked scheduled downtimes
      in service availability calculations in ODW
    Fixed CSS warnings from jsgraphs
    Fixed overview graph for FF3.0
    Fixed graph requesting SVG plugin on redhat/centos systems
    Fixed display of times in graph, based on Opsview server timezone
    Fixed graph making lots of calls to rrdfetch on graph page load with multiple metrics on same graph
    Fixed graph viewing when public role given RRDGRAPHS access
    Fixed title for service result submission
    Fixed edit of SNMP trap service check where redirects to rules page only after a create
    Fixed https links prepending opsview URL in sidenav items

3.5.0 25th November 2009
    FEATURES:
    UI redesign. You will need to reload you web browser for the new style to load
    Javascript graphs. Old graphs available under /graphrrd

    ENHANCEMENTS:
    In Host Group Hierarchy pages, handled items are coloured less prominently
    Provide better warning message when deleting a keyword
    Backup nagios_instances table in runtime nightly backup
    Help documentation now goes to opsview-community namespace on docs.opsview.org
    Nagvis updated to 1.4.4. NOTE: you may need to clear your browser cache to get the new functionality
    Included script recheck_all_hosts_services to mass re-check all hosts and their services as a temporary workaround to bug in Nagios rescheduling routine
    Only show large error message re: ajax updates on 2nd failure
    nlcat script to display nagios log file with human readable dates
    Allow overriding of upgrade steps by looking for flags in /tmp/opsview_upgrade_override/{dbname}-{stepnumber}
    Updated AQL text
    Updated German translations by Ekkehard Koehler and Karsten Müller
    Updated Scriptaculous to 1.8.3
    Update contact's mobile field to 128 characters

    FIXES:
    Fixed DST bug where Nagios reschedules active checks 24 hours later than expected
    Fixed events view auto update mode to cater for filter options currently set
    Fixed runtime db upgrade script where nagios_instances with an instance_name of default is > 1. This caused
      hosts to have duplicate services displayed in the status pages
    Fixed check_hostgroup_restrictions so it works without needing Opsview 3.1 installed
    Fixed missing side nav when Mass recheck pressed with output=ajax
    Fixed parameter parsing bug when running NMIS reports from cron (thanks to Frederic Jacquet)
    Added missing translations, and incorrect title in System Preferences
    Ensure the status map on the master server shows the monitoring server as the device parent when the parent is undefined
    Fixed incorrect table headers in viewport group_by_service style
    Fixed case where runtime database has no rows in nagios_programstatus table
    Fixed bug where viewport style group_by_host displays duration for OK state
    Fixed /admin/snmptrapexception to route to login page on anonymous access
    Fixed some error handling in check_snmp_tcpcurrestab_cssfix
    Fixed ifAlias parsing error with null characters in query_host (thanks to C. H. Kang)
    Fixed browser user agent string handling to cope with 760 char strings rather than 256
    Fixed jerky "Show ..." buttons on IE7 by switching to Fade/Appear effects
    Fixed version number on slave sidenav for Debian installs
    Fixed case where a browser preference of en,de returned back German
    Fixed SQLite database lock handling in check_snmp_tcpcurrestab_cssfix

    WARNINGS:
    IE6 is not supported any more. A message will be displayed on the login page

3.3.2 8th October 2009
    FEATURES:
    New migration tool for importing existing Nagios configurations
      See http://docs.opsview.org/doku.php?id=opsview3.3:migrating:nagios
    Bulk import tool via Excel spreadsheet.
      See http://docs.opsview.org/doku.php?id=opsview3.3:migrating:spreadsheet
    Mass rechecks for host and services (Jose Luis Martinez - Capside)
    Search box now searches for host groups (Jose Luis Martinez - Capside)

    ENHANCEMENTS:
    Mass acknowledgements available on host group and host status pages, as well as service pages (Jose Luis Martinez - Capside)
    On status pages, can hover over host to get its alias information (Jose Luis Martinez - Capside)
    Added ability to configure check period, check interval, check attempts and retry interval for hosts.
      WARNING: The default check period is set to 24x7. If this does not exist, the upgrade script will use the lowest id number
    Added ability to remove service checks at a host level, even if it is in an associated host template
    Default use_large_installation_tweaks to on in Nagios
    Add links from events page to status pages for hosts and services
    Slight tidy up of send2slaves and dosh commands
    Added Output column to default Events View
    Updated Nagios to 3.2.0
    Updated Nagios Plugins to 1.4.14
      WARNING: service checks using check_by_ssh may run differently due to a quoting fix
    Timeline now displays by default. Events table shows Output column by default
    Timeline centers on the first event on every page
    Added extra debugging when file2sock fails from import_ndologsd
    Implemented retries for NDO logs when a connection refused is seen trying to connect to ndo2db
    Better housekeeping of the nagios backup directory
      WARNING: All files within the nagios backup directory (default: /usr/local/nagios/var/backups) older than the retention period are removed, not just files matching "nagios-*.gz"
    Added notification type to beginning of submit_sms_script and submit_sms_aql, to distinguish acknowledgements, downtimes and flapping
    Initial database contains OS - Windows Base host template
    New opsview_preupgrade_check script to check Opsview and database settings
    Updated Opsview host icon with new logo
    Add option to sms scripts to disable sending acknowledgements
    Link from viewport summary page now shows viewport filtered by errors

    FIXES:
    Fixed timeline making a double ajax call for first load of page
    Fixed menu bug where host configuration menu always thought status was not ready yet
    Force use of perl library, in case nagios user's environment variables not set
    Incorrect Catalyst specification for /rrdgraph, only seen when upgrading Catalyst
    Removed commented out map file entries
    Fixed some url locations in events view page, when using different base prefix
    Fixed incorrect authentication when viewing RRDgraphs with invalid authtkt
    Fixed bug where servicechecks list page would count the number of hosts twice if in multiple templates
    Fixed bug where list of hosts for a service check were duplicated
    Run all Opsview perl code through perltidy for consistent code layout
    Debian packages change nagios user shell to /bin/bash incase it was previously locked (which prevents correct installs/upgrades)
    Fixed showing unauthorised downtime information for hosts and services
    Fixed syntax errors for check_dir_age on Solaris
    Fixed error where multiple instance names appear in runtime database, affecting Nagvis
    Fixed check_snmp_linkstatus to use bigint for 64bit counters
    Fixed translation of states in viewport pages

3.3.1 10th September 2009
    FEATURES:
    Events view for a dynamic list of the latest events occuring in Opsview
    Flexible filtering on events desired
    Audible notifications available via the Events view
    Ability to export data from Events view in Excel, CSV, JSON or XML
    Can now select contact's access objects via keywords in addition to the host group / service group intersection
    Live host interfaces screen to see SNMP configuration information and interface history, from host popup menus
    Can access Netdisco information from Search Host box with "nd {ipaddress}"
    German translation by Karl Leutgeb

    ENHANCEMENTS:
    Set appropriate SNMP version in MRTG for 64 bit counters
    Extra helper tables added to runtime database
    Added extra data returned from query host re: Contact and Location
    Status bar now shows last browser update time and last server update time
    Updated stylesheet for sidenav and viewports
    Added usec value for passive results in database tables, to avoid constraint errors
    Updated nagios_servicechecks and nagios_statehistory tables to bigint column
    Speed up NMIS updates by using multiple threads
    Look for explicit names when checking for run away NMIS collect processes

    FIXES:
    Fixed search box autocomplete drop down list when names were too long
    Fixed NMIS call, incorrectly left in debug mode
    Fixed fabtabulous tabs for graphing options page
    Webexception page now returns a 500 status
    Removed links from popup menus for host and services to host configuration objects that no longer exist
    Fixed collapsable sections by wrapping Scriptaculous Effects with Effects2.
    Incorrect host table header for viewport style group_by_service
    Fixed incorrect /rrdgraph access if unauthenticated user accesses a graph
    Workaround for some layout issues on Safari 4 after a popup menu has been selected (webkit bug #27656)
    Removed unnecessary "include major updates" in Opsview System Survey preferences
    Removed stalking_options from nagconfgen as deprecated and not available in configuration UI
    Merged patch from Nagios 3.2.0 for incorrect initialisation of worker pthread. Affects external commands after lots of reloads
    Ensure NMIS configuration within opsview.conf can be used on slaves
    Remove references to perl directory from ALTovbase
    Ensure upgrading opsview-base doesnt remove init script for the agent - will take effect when upgrading from 3.3.1 to the next version due to where the problem was.  Run 'chkconfig --add opsview-agent' to fix in the meantime.
    Fixed URL for host icons on host edit page when using a different base prefix
    Remove unnecessary windows files from linux tarballs

    WARNINGS:
    This upgrade may take a long time. See http://docs.opsview.org/doku.php?id=opsview3.3:upgrading#version_specific

3.3.0 25th August 2009
    FEATURES:
    Internationalisation of Opsview web pages. See
      http://docs.opsview.org/doku.php?id=opsview3.3:i18n
    Opsview System Survey sends back a small anonymized system usage survey on update checks. Users
      can opt-out in the system preferences page. For more information see
      http://docs.opsview.org/doku.php?id=opsview3.3:systemsurvey

    ENHANCEMENTS:
    Welcome page will be seen on first login for all users.
    Hide buttons to roll up AJAX help boxes in the website.
    Allow the sidebar search box to also search on primary hostname/IP address
    More rrdgraph options, including UI support for changing y-axis scaling and better labelling (Jose Luis Martinez, Capside)
    Plugin check_opsview_update supports HTTP proxy, via --proxy flag.
    Include send_nsca in agent packages
    Better update alerting such that users can choose to only be alerted about minor releases.
    Add in Debain LSB information to opsview and opsview-web startup scripts
    Add support for banner advert on login page
    Allow NMIS to collect stats from devices where interfaces have no ifAlias set (see nmis.conf file)
    Add configuration to allow NMIS to collect stats from multiple devices at a time
        see http://docs.opsview.org/doku.php?id=opsview3.1:nmis#troubleshooting
    Include Nagios::Plugin in agent packages

    FIXES:
    opsview-web packages no longer contain .svn meta files
    Service check exception args no longer appear as blank when not initialized on the Edit Host > Monitors tab.
    Record change of librrd2 to librrd4 opsview-slave dependancy on Debian Lenny
    Fixed some opsview-agent RPM spec file problems (remove arch check, improve upgrade steps, remove incorrect obsolete marker)
    Fixed incorrect update time on Atom feeds

    UPGRADING:
    check_opsview_update plugin nolonger uses --os and --updatetype flags. See system preferences updates tab.
    Do not use Opsview 3.3 to upgrade from an Opsview 2.7 or Opsview 2.8 system as the upgrade scripts for these
      versions have been removed. Upgrade to 2.14 first before continuing to upgrade to Opsview 3.3

3.2.0 16th July 2009
    FEATURES:
    Flexible ACLs with user configurable roles included
      If you use opsview_sync_ldap, ensure that the synchronisation scripts still work as role names can be changed
    Public RRDgraphs now configured via Role objects
    Viewport access can now be set to public or authenticated users
    View some, change none role now available
    Option to use Catalyst::Engine::HTTP::Prefork for faster response when large number of users accessing Opsview
      More documentation about enabling at http://docs.opsview.org/doku.php?id=opsview3.2:prefork
    Cater for check_raid plugin moving between opsview core and base in debian packaging

    ENHANCEMENTS:
    Move opsview-agent builds for Debian and Ubuntu systems from their own repository into opsview-base
    Use common db connection script for opsview_sync_ldap
    Removed old sbin scripts, specifically promote_mib, reprocess_snmptraps, change_monitored_hosts, display_mrtg and snmptrap_exceptions
    Make /public require authentication
    Allow opsview-base rpms to be built by non-root users
    Add in new auto-restart feature for use with FastCGI daemons to prevent consistent high memory usage.
      See http://docs.opsview.org/doku.php?id=opsview3.2:fastcgi:memory on how to use it.

    FIXES:
    Include edition type and version on the login and about pages
    Fixed error message when host with no services to acknowledge
    Possibly misses out stderr messages when running process_configs in ksh - switched to bash
    opsview-web debian package no longer treats opsview_web.yml as a configuration file and will be replaced cleanly on an upgrade - all local overrides should be in opsview_web_local.yml
    Fixed security issue where a contact could have change access for a service on a slave, when change access is denied at the master
    Ensure all opsview database MyISAM dables are changed to InnoDB
    Allow check_snmp_weblogin scripts to recover from corrupted store files
    Remove unnecesary code from import_runtime
    Fixed snmptrap2nagios tracing if sqlite file was 0 bytes
    Fixed snmpwalk when over 10000 bytes of data returned
    Ensure all opsview database tables are using the InnoDB engine
    Nagvis updated to 1.4.1.  NOTE: you will probably need to clear your browser cache to get the new functionality
    Updated check_snmp_linkstatus to handle larger amounts of data, by changing a get_entries(-columns) call to get_next_request
    Fixed a possible import_runtime hang where the downtime end time is incorrectly passed through to ODW, because of duplicated internal_downtime_ids
    Fixed Nagios when "Max concurrent checks reached" message appears
    Move location of nrpe.pid from /var/run to /usr/local/nagios/var
    Change default for 'Resend Notifications' on new service checks to off
    Fixed incorrectly installed check_memory plugin
    Fixed ndoutils_configdumpend calling incorrect Opsview database if changed from default
    Fixed Nagios CGI exploit where arbitrary code could be run from statuswml.cgi
    Fixed default arguments to 'Unix Swap' check
      See http://docs.opsview.org/doku.php?id=opsview3.2:upgrading for more details on checking your system before upgrading
    Fixed old database schema version in nightly runtime backup
    Enforced model validation for constraint of 63 characters for host and service check names

    UPGRADING:
    The upgrade process will check if there is a constraint problem with existing host groups and stop the upgrade if there is.
      See http://docs.opsview.org/doku.php?id=opsview3.2:upgrading for more details on checking your system before upgrading