Checkmk werks level2

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Check_MK Werk 1663: winperf_if: fixed incorrect enumeration of interface index

by Andreas Boesl

ID: 1663 Title: winperf_if: fixed incorrect enumeration of interface index Component: Checks & Agents Level: 2 Class: Bug Fix Version: 1.2.7i1 The previous update broke services, which used the interface index as item. This has been fixed.

9 years, 9 months

Check_MK Werk 1659: windows agent: fixed output of 64 bit performance counters

by Andreas Boesl

ID: 1659 Title: windows agent: fixed output of 64 bit performance counters Component: Checks & Agents Level: 2 Class: Bug Fix Version: 1.2.5i7 The windows agent was unable to output 64 bit performance counters. Those values were cut at 32 bit, which caused unwanted counter wraps in the checks.

9 years, 9 months

Check_MK Werk 1726: Move variable data of Linux/UNIX agents to /var/lib/check_mk_agent

by Mathias Kettner

ID: 1726 Title: Move variable data of Linux/UNIX agents to /var/lib/check_mk_agent Component: Checks & Agents Level: 2 Class: New Feature Version: 1.2.5i7 The Linux, AIX, Solaris and other UNIX agents now put state and cache files no longer below <tt>/etc/check_mk</tt> but per default below <tt>/var/lib/check_mk_agent</tt>. This can be changed directly in the agent in the following line: F+:check_mk_agent.* export MK_VARDIR=/var/lib/check_mk_agent F-: This means that if you update to the new version of the agent, you must have in mind the following things: <ul> <li>Check_MK agent will not find saved <tt>logwatch.state</tt> files and will consider all logfiles as new. This means that you will miss up to one check cycle of possible new logfile entries.</li> <li>Check_MK agent will forget its cached data and recompute all asynchronous checks</li> <li>Maybe other plugin-specific loss of memory</li> </ul> You can prevent this by manually copying selective data from <tt>/etc/check_mk</tt>, if you like.

9 years, 9 months

Check_MK Werk 1725: The get_average() function from now on only returns one argument: the average

by Mathias Kettner

ID: 1725 Title: The get_average() function from now on only returns one argument: the average Component: Core & Setup Level: 2 Class: New Feature Version: 1.2.5i7 Note to all developers of checks that use <tt>get_average()</tt>: In order to simplify the check API the function <tt>get_average()</tt> from now on does not return the additional <tt>timedif</tt> value anymore - just the rate. Please check your checks for the usage of this function.

9 years, 9 months

Check_MK Werk 1723: New check API function get_average() as more intelligent replacement for get_counter()

by Mathias Kettner

ID: 1723 Title: New check API function get_average() as more intelligent replacement for get_counter() Component: Core & Setup Level: 2 Class: New Feature Version: 1.2.5i7 The function <tt>get_counter()</tt> is now deprecated in the programming of checks. There is a new function called <tt>get_rate()</tt> that should be used as a replacement. F+: def get_rate(countername, this_time, this_val, allow_negative=False, onwrap=SKIP): ... return rate F-: The call syntax is almostthe same - just with the new optional parameter <tt>onwrap</tt>. Important however: now just the rate (counter steps per second) is being returned. The formerly additional return value <tt>timedif</tt> has been dropped since it is of no real use. So the return type has changed from tuple to float. The most imporant change - however - is in the handling of counter wraps. A counter wrap happens in three situations: <ul> <li>When the counter is seen for the first time (initialization)</li> <li>When the previous value of the counter is larger than the new one</li> <li>When the time difference since the last counter update was less than one second</li> </ul> Wraps usually happen when a device reboots or when the valid range of the counter is exceeded and it wraps through again to zero. The old function <tt>get_counter()</tt> used to raise an exception of type <tt>MKCounterWrapped</tt>. This exception was handeld by the main core of Check_MK, which skipped that check for one cycle. The problem were checks with more than one counter: at the point of initialization the code of the check wasaborted after the first of these counters had been initialized. If you had 10 counters, you would need 10 check cycles until the first time a check result would be returned. So in order to avoid that the check had to catch the <tt>MKCounterWrapped</tt> itself and handle this situation - very ugly. The new function <tt>get_rate</tt> implements a different approach. Per default no exception is raised in case of a counter wrap, but simply the value <tt>0.00</tt> is being returned. But Check_MK keeps record of this wrap event. After the check function has completed (and all counters are handled), Check_MK creates one final <tt>MKCounterWrapped</tt> exception, so that the (invalid) check result is being skipped as it should be. This way the check programmers' burden is a reduced a bit because now even if the check has several counters he does not need to catch counter wraps. In order to give the check more flexibility there are two other behaviours, that can be selected by the optional argument <tt>onwrap</tt>: <table> <tr><th>onwrap</th><th>behaviour</th></tr> <tr><td class=tt>SKIP</td><td>Skip result of check, after all counters are handled (default)</td></tr> <tr><td class=tt>RAISE</td><td>Immediately raise a <tt>MKCounterWrapped</tt> exception (legacy behaviour)</td></tr> <tr><td class=tt>ZERO</td><td>Ignore the wrap and return a rate of 0.0 (be careful!)</td></tr> </table> Note: Using <tt>ZERO</tt> is generally not a good idea. This can make a service jump from CRIT to OK from now and then and generate bogus notifications.

9 years, 9 months

Check_MK Werk 1719: Allow to allow both host name and IP address when checking for events in Event Console

by Mathias Kettner

ID: 1719 Title: Allow to allow both host name and IP address when checking for events in Event Console Component: Event Console Level: 2 Class: New Feature Version: 1.2.5i7 The check Check for events in Event Console used to allow either a match for the host name or the IP address when trying to find events that belong to a monitored host. Now there is a new third option Try both host name and IP address that will try to match the host name and the IP address at the same time and will match the event if one of both matches succeeds. This helps in situations where the Event Console sometimes just gets the IP address of the remote host correctly, but has no host name.

9 years, 9 months

Check_MK Werk 1710: omd_status: Fix totally missing section in Linux agent

by Mathias Kettner

ID: 1710 Title: omd_status: Fix totally missing section in Linux agent Component: Checks & Agents Level: 2 Class: Bug Fix Version: 1.2.5i7 Reason was an invalid call to <tt>run_cached</tt>. As a result the agent section <tt>omd_status</tt> was always empty. This has been fixed.

9 years, 9 months

Check_MK Werk 1704: Fix notification analyser in case there are non-Ascii characters in the notification context

by Mathias Kettner

ID: 1704 Title: Fix notification analyser in case there are non-Ascii characters in the notification context Component: Notifications Level: 2 Class: Bug Fix Version: 1.2.5i7

9 years, 9 months

Check_MK Werk 1703: ups_test: Fix computation of time since last self test

by Mathias Kettner

ID: 1703 Title: ups_test: Fix computation of time since last self test Component: Checks & Agents Level: 2 Class: Bug Fix Version: 1.2.5i7 Instead of the time since the last self test of the battery, the check used the time the last test has lasted. So this check did not trigger an alarm every - just for the summary state of the last test. Thanks for the bug report to Cyril Pawelko!

9 years, 9 months

Check_MK Werk 1700: Enable icon for link to host/service parameters per default now

by Mathias Kettner

ID: 1700 Title: Enable icon for link to host/service parameters per default now Component: Multisite Level: 2 Class: New Feature Version: 1.2.5i7 Also let it point to the general configuration page of that host/service, not to its check parameters. Now also active checks and hosts have this icon.

9 years, 9 months

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Checkmk werks level2