Checkmk werks level1 February 2018

checkmk-werks-lvl1@lists.checkmk.com

11 participants
88 discussions

Check_MK Werk 5731: Custom icons and actions: Add new macro $USER_ID$

by Lars Michelsen

ID: 5731 Title: Custom icons and actions: Add new macro $USER_ID$ Component: Multisite Level: 1 Class: New feature Version: 1.5.0i3 The macro <tt>$USER_ID</tt> has been added to the replacement mechanic of "Custom icons and actions" URL. This macro is replaced with the ID of the user that is currently working with the GUI.

6 years, 7 months

Check_MK Werk 5671: Use RE2 regular expression engine for Livestatus queries.

by Sven Panne

ID: 5671 Title: Use RE2 regular expression engine for Livestatus queries. Component: Livestatus Level: 2 Class: New feature Version: 1.5.0i3 Livestatus offers various places where a regular expression can be used, e.g. in its "Filter:" header for GET queries. The previous implementation had various problems, which have all been fixed by switching to a new regular expression engine (RE2, see https://github.com/google/re2): <ul> <li>Unicode was not handled correctly: RE2 fully understands UTF-8, so this has been fixed.</li> <li>Unbounded memory usage during matching: This could lead to stack overflows and CMC/Nagios crashes when trying to match some classes of regular expressions on long inputs. RE2 guarantees that this won't happen, it either complains that a regular expression is too complicated (which is hard to provoke) or runs in constant memory afterwards.</li> <li>Exponential runtime: Some classes of regular expressions could lead to exponential runtime, blocking Livestatus threads and using CPU time for some millenia or more. RE2's runtime is linear in the size of the regular expression and the input, so this has been fixed, too.</li> </ul> As an additional bonus, most of the time RE2 is quite a bit faster than the previous implementation. RE2's regular expression syntax (https://github.com/google/re2/wiki/Syntax) is basically a superset of the previous POSIX extended regular expression syntax (http://pubs.opengroup.org/onlinepubs/9699919799/basedefs/V1_chap09.html#tag…), so you won't have to change your patterns. Note that one esoteric detail is different, though, namely the semantics of submatching (see https://swtch.com/~rsc/regexp/regexp2.html#posix). If you relied on this, you probably already had some problems, because almost every POSIX regex implementation out there was buggy in some way (see https://wiki.haskell.org/Regex_Posix#Results_and_Bugs).

6 years, 7 months

Check_MK Werk 5670: Handle history files from older EC versions, which have fewer columns.

by Sven Panne

ID: 5670 Title: Handle history files from older EC versions, which have fewer columns. Component: Event Console Level: 1 Class: Bug fix Version: 1.5.0i3 History files written by older versions of the EC might contain fewer columns than a newer EC handles. This fix fills these missing columns with their default values, avoiding log messages like unknown precedence '' in table eventconsolehistory in cmc.log later.

6 years, 7 months

Check_MK Werk 5730: Graph export can now use custom consolidation function

by Lars Michelsen

ID: 5730 Title: Graph export can now use custom consolidation function Component: metrics Level: 1 Class: New feature Version: 1.5.0i3 In addition to werk #8643 it is now possible to provide the optional key <tt>consolidation_function</tt> to control which consolidation function should be used when calculating aggregated numbers. Possible values are: <ul> <li><tt>"consolidation_function": "max"</tt> - The default</li> <li><tt>"consolidation_function": "min"</tt></li> <li><tt>"consolidation_function": "average"</tt></li> </ul>

6 years, 7 months

Check_MK Werk 5272: Make Real-Timer-Helper Pool configurable

by Andreas Umbreit

ID: 5272 Title: Make Real-Timer-Helper Pool configurable Component: Core & setup Level: 1 Class: New feature Version: 1.5.0i3 The number of Maximum concurrent Real-Time checks is now configurable. You can change the setting on the GUI at Global Settings - Monitoring Core. Default value is set to 1, which preserves the previous behavior.

6 years, 7 months

Check_MK Werk 5271: Better handling of erroneous deployment information in Agent Bakery

by Andreas Umbreit

ID: 5271 Title: Better handling of erroneous deployment information in Agent Bakery Component: agents Level: 1 Class: Bug fix Version: 1.5.0i3 Depending of the state of the agent deployment information file for a host, the pages "Automatic agent updates" and "Agent update status" would crash and show only partial information. This is now mitigated by handling corrupt agent deployment files per-host and displaying an error message in a convenient format and location on the affected pages.

6 years, 8 months

Check_MK Werk 5729: Fixed loosing configured icons when editing bookmark lists

by Lars Michelsen

ID: 5729 Title: Fixed loosing configured icons when editing bookmark lists Component: Multisite Level: 1 Class: Bug fix Version: 1.5.0i3 When editing the bookmark list and an input error is shown to the user, for example when a title is empty, all previously configured icons were reset. They are kept now.

6 years, 8 months

Check_MK Werk 5728: Fixed larger graph legends being cut off in graph dashlets

by Lars Michelsen

ID: 5728 Title: Fixed larger graph legends being cut off in graph dashlets Component: metrics Level: 1 Class: Bug fix Version: 1.5.0i3

6 years, 8 months

Check_MK Werk 5607: HW/SW Inventory: Access of certain inventory tree sections is configurable in contact groups

by Simon Betz

ID: 5607 Title: HW/SW Inventory: Access of certain inventory tree sections is configurable in contact groups Component: WATO Level: 1 Class: New feature Version: 1.5.0i3 You're able to restrict contact groups to see certain inventory tree paths. First go to inventory tree and enable 'Show internal tree paths' in the display options in order to see the internal tree paths. Below 'Permissions', 'Permitted HW/SW inventory paths' in the configuration of any contact group you can register these internal paths. Consider the following exceptions: - By default all contact groups are allowed to see the whole tree - If one user is not part of any group this user is allowed to see the whole tree - 'Allowed to see the whole tree' takes first priority. - 'Forbid to see any path' takes lowest priority. Examples: - 'Allowed to see the whole tree' is configured in one group and 'Allowed to see following paths' in another group, then the user is allowed to see the whole tree. - 'Allowed to see the whole tree' is configured in one group and 'Forbid to see any path' in another group, then the user is allowed to see the whole tree. - 'Allowed to see following paths' is configured in one group and 'Forbid to see any path' is another group, the user is allowed to see the configured paths.

6 years, 8 months

Check_MK Werk 5726: Updated NRPE to 3.2.1

by Lars Michelsen

ID: 5726 Title: Updated NRPE to 3.2.1 Component: Other Components Level: 1 Class: New feature Version: 1.5.0i3 Have a look at the NRPE upstream CHANGELOG.md for details. This release should seamlessly be compatible with the previous NRPE versions.

6 years, 8 months

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Checkmk werks level1 February 2018