Checkmk werks level1 February 2017

checkmk-werks-lvl1@lists.checkmk.com

10 participants
680 discussions

Check_MK Werk 8296: More precise availability handling of removed and readded objects

by Lars Michelsen

ID: 8296 Title: More precise availability handling of removed and readded objects Component: Reporting & Availability Level: 2 Class: New feature Version: 1.2.7i3 The CMC now better detects objects that have been removed and readded later on to the monitoring. It does this by logging messages of the type <tt>VANISHED HOST</tt> or <tt>VANISHED SERVICE</tt> to the monitoring history file and processing these messages when computing the availability timelines.

7 years, 7 months

Check_MK Werk 8295: Automatically create backup of state file if state shrinks by more than 5% in size

by Lars Michelsen

ID: 8295 Title: Automatically create backup of state file if state shrinks by more than 5% in size Component: cmc Level: 2 Class: New feature Version: 1.2.7i3 If you do some unlucky misconfiguration (like setting disabled services for all services instead of just a few) then you will loose the current state and downtimes of all affected objects - even if you recreate them later again. That is because from the point of view of the core vanished objects are expected to be gone forever and their state is being dropped. In such situations the CMC now automatically creates a copy <tt>state.1</tt> of you state file before creating a new one in its place. Previous backups are shifted to <tt>state.2</tt>, <tt>state.3</tt> and so an. Up to 30 backups are being kept. These backup are never being restored automatically at any time. If you like to get back to your old state, you can copy these files manually: C+: OM:omd stop cmc OM:cd var/check_mk/core OM:mv state state.away OM:cp state.1 state OM:omd start cmc C-: This backup always happens if the size of the new state file is by at least 5% smaller then the old one. Note: The state in this file contains the current OK/WARN/CRIT, the plugin output, the next scheduled check execution, notification, downtimes, comments and stuff like that. It does not contain historic performance data or events. But these do not get lost in the cases mentioned above.

7 years, 7 months

Check_MK Werk 8293: Alert handlers: optionally process every single check execution, inline alert handlers

by Lars Michelsen

ID: 8293 Title: Alert handlers: optionally process every single check execution, inline alert handlers Component: cmc Level: 2 Class: New feature Version: 1.2.7i3 The new alert handlers can now optionally be called at every check execution. This is a possible way to bring check results into some external system (like a database). Please note that this can cost many CPU ressources and slow down the monitoring if the alert handler cannot process the data fast enough. In order to implement more performance alert handlers, these can now optionally be written as Python functions that are being called without creating a new process. Such an inline alert handler has the following structure: F+:/omd/sites/mysite/local/share/check_mk/alert_handlers/foo #!/usr/bin/python # Inline: yes # Do some basic initialization (optional) def handle_init(): log("INIT") # Called at shutdown (optional) def handle_shutdown(): log("SHUTDOWN") # Called at every alert (mandatory) def handle_alert(context): log("ALERT: %s" % context) F-: You need to define at least <tt>handle_alert</tt>. The argument <tt>context</tt> is a dictionary with keys like <tt>"HOSTNAME"</tt>. You can use the function <tt>log(...)</tt>, which will write some diagnostic text into <tt>var/log/alerts.log</tt> - marked with the name of you alert handler. The two global variables <tt>omd_root</tt> and <tt>omd_site</tt> are set to the home directory and to the name of the OMD site. It is allowed to use <tt>import</tt> commands in your handler. Note that in the second line you need to put <tt># Inline: yes</tt>. That way Check_MK nows that the alert handler should be loaded as inline Python function and not run as a script. Note also that after each change to an inline alert handler you need to restart the CMC: C+: OM:omd restart cmc C-:

7 years, 7 months

Check_MK Werk 8294: Errors in WATO configuration do not prevent the core from being restarted anymore

by Lars Michelsen

ID: 8294 Title: Errors in WATO configuration do not prevent the core from being restarted anymore Component: cmc Level: 2 Class: New feature Version: 1.2.7i3 When you had an error in your monitoring configuration like duplicate hosts or services, missing timeperiods, invalid cluster nodes or parents or various other situations then Check_MK could not create a valid configuration for the core and thus you could not activate any changes. This has been changed. All these errors are now only warnings. A working configuration for the core is now always being created. WATO will display the warnings in the Activate Changes page.

7 years, 7 months

Check_MK Werk 8291: Fix exception "max() args is an empty sequence" when exporting views as PDF

by Lars Michelsen

ID: 8291 Title: Fix exception "max() args is an empty sequence" when exporting views as PDF Component: Reporting & Availability Level: 1 Class: Bug fix Version: 1.2.7i3 This exception could happen in case of empty rows.

7 years, 7 months

Check_MK Werk 8292: Fix small memory leak when deleting downtimes, add validation for downtime depth

by Lars Michelsen

ID: 8292 Title: Fix small memory leak when deleting downtimes, add validation for downtime depth Component: cmc Level: 2 Class: Bug fix Version: 1.2.7i3

7 years, 7 months

Check_MK Werk 8283: Fixed baking of mk_jolokia with login credentials

by Lars Michelsen

ID: 8283 Title: Fixed baking of mk_jolokia with login credentials Component: agents Level: 1 Class: Bug fix Version: 1.4.0i1 Configured login credentials were not written correctly to the configuration file of mk_jolokia. There was a Python syntax error.

7 years, 7 months

Check_MK Werk 8281: Fixed error in Micro Core Statistics SnapIn when used without cmc

by Lars Michelsen

ID: 8281 Title: Fixed error in Micro Core Statistics SnapIn when used without cmc Component: WATO Level: 1 Class: Bug fix Version: 1.2.7i2 Fix the output of the SnapIn when not used with cmc. There are only a subset of values available if another core is used.

7 years, 7 months

Check_MK Werk 8282: Agent Bakery for mk_logins

by Lars Michelsen

ID: 8282 Title: Agent Bakery for mk_logins Component: agents Level: 1 Class: New feature Version: 1.2.7i3

7 years, 7 months

Check_MK Werk 8280: Change order of metrics in legend in order to match order of curves in graph

by Lars Michelsen

ID: 8280 Title: Change order of metrics in legend in order to match order of curves in graph Component: metrics Level: 2 Class: Bug fix Version: 1.2.7i3

7 years, 7 months

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Checkmk werks level1 February 2017