Checkmk werks level2 June 2017

checkmk-werks-lvl2@lists.checkmk.com

6 participants
12 discussions

Check_MK Werk 4921: Users can be limited to a list of authorized sites now

by Lars Michelsen

ID: 4921 Title: Users can be limited to a list of authorized sites now Component: Multisite Level: 2 Class: New feature Version: 1.5.0i1 It is now possible to configure a list of authorized sites for each user. This is especially useful when having a huge number of sites configured, like several hundred, in a distributed setup. In case you have users that have their hosts on only some of these sites, you can set the new authorized sites option for these users. For the users that have authorized sites configured the GUI will only contact these sites instead of all sites to build up their views. In large environments this will be a huge performance improvement.

7 years, 4 months

Check_MK Werk 4901: Reworked Livestatus Proxy to be more scalable

by Lars Michelsen

ID: 4901 Title: Reworked Livestatus Proxy to be more scalable Component: Livestatus Proxy Level: 2 Class: New feature Version: 1.5.0i1 The livestatus proxy daemon has been reworked to use a multi process architecture. It now has a master process that mainly cares about monitoring the site processes. Each connected site has an own subprocess that manages all channels to this site and the clients that use these channels to communicate with the sites. When you have a look at ps/top you should see something like this: C+: OMD[heute]:~$ ps -ef | grep liveproxyd UID PID PPID C STIME TTY TIME CMD heute 9261 1 0 11:40 ? 00:00:00 liveproxyd[master] heute 9262 9261 0 11:40 ? 00:00:00 liveproxyd[heute_slave_1] heute 9263 9261 0 11:40 ? 00:00:00 liveproxyd[heute_slave_2] C-: As you can may see there is the master process that has the process <tt>1</tt> as parent process. The site processes have the master as parent. When one site process terminates for some reason the master will restart it. When the master is terminated all site processes will terminate too. In case of a restart or config reload the master will restart itself and stop all site processes and restart them again. With this change the load of the livestatus proxy will now spread over multiple CPUs. Side note: There is a new global setting <i>Logging of the Livestatus Proxy</i> that can be used to control the detail level of the log entries written to the <tt>var/log/liveproxyd.log</tt> log file. In case you experience any issues with the livestatus proxy daemon take a look at this log file and maybe increase the log level to get more details.

7 years, 4 months

Check_MK Werk 4708: Windows Agent/Agent Updater: Fixed race condition which removed the windows service

by Andreas Boesl

ID: 4708 Title: Windows Agent/Agent Updater: Fixed race condition which removed the windows service Component: Checks & agents Level: 2 Class: Bug fix Version: 1.5.0i1 The agent updater could kill itself during an update, because the MSI installation process sent a shutdown signal to the windows service. This shutdown also killed any plugins, including the agent updater... This has been fixed by detaching the cmk-update-agent.exe file from the process group of the windows agent.

7 years, 4 months

Check_MK Werk 4761: Fixed multisite setups with sites using Check_MK/Livestatus < 1.4

by Lars Michelsen

ID: 4761 Title: Fixed multisite setups with sites using Check_MK/Livestatus < 1.4 Component: Multisite Level: 2 Class: Bug fix Version: 1.5.0i1 When updating the central site of a distributed setup to Check_MK 1.4.* and leaving the slave sites on older versions the other sites were marked as dead sites while rendering the page. This issue was caused by the tactical overview snapin that tried to calculate the numbers for the "Events" of the Event Console. The slave sites using older Check_MK versions do not support that kind of query. Once this query is made the sites are marked as dead and are also not shown correctly in the master control and site status snapin. A possible workaround would be to update all involved sites to Check_MK 1.4. Also affected are sites that use the Nagios core and have the Event Console disabled. They still report an error to the GUI. This will be fixed soon.

7 years, 4 months

Check_MK Werk 4758: Fixed site status and master control snapin not displaying states of sites

by Lars Michelsen

ID: 4758 Title: Fixed site status and master control snapin not displaying states of sites Component: Multisite Level: 2 Class: Bug fix Version: 1.5.0i1 The master control snapin was hiding sites with communication errors completely. It is now displaying a box with the occured error message. The site status snapin was showing the site, but displaying a site as "online" while it was reported as "dead" by the livestatus connection. This appeared when an error was found in a query, for example when a queried table does not exist.

7 years, 4 months

Check_MK Werk 4757: Fixed possible reflected XSS in webapi.py

by Lars Michelsen

ID: 4757 Title: Fixed possible reflected XSS in webapi.py Component: Multisite Level: 2 Class: Security fix Version: 1.5.0i1 In the Check_MK 1.4 branch URLs like this could be used for a reflected XSS attack: <tt>http://<test host>/<site>/check_mk/webapi.py?_username=<script>alert("XSS")</script>&_secret=AnythingHere The error message was interpreted as HTML while it should be a plain text error message. This has been fixed now.

7 years, 4 months

Check_MK Werk 4858: omd_apache data collection: fixed issues caused by missing newline at the end of statsfile(s)

by Marcel Schulte

ID: 4858 Title: omd_apache data collection: fixed issues caused by missing newline at the end of statsfile(s) Component: Checks & agents Level: 2 Class: Bug fix Version: 1.5.0i1 Sometimes the apache statsfile(s) can miss a newline at the end of the file. This caused the following known issues: * missing agent section directly after omd_apache section - because the section header was starting in the same line as the omd_apache section's last line * crashed omd_apache check because of missing data

7 years, 4 months

Check_MK Werk 4818: Fixed "No Data" in Tactical Overview if missing permissions to see failed notifications

by Marcel Arentz

ID: 4818 Title: Fixed "No Data" in Tactical Overview if missing permissions to see failed notifications Component: Multisite Level: 2 Class: Bug fix Version: 1.5.0i1 Guest do not have permissions to see failed notifications per default which lead into an empty tactical overview. This bug is in Check_MK since June 2016.

7 years, 5 months

Check_MK Werk 4780: HW/SW inventory: Removed entries about section ages provided by check_mk_agent; this reverts Werk 3904

by Simon Betz

ID: 4780 Title: HW/SW inventory: Removed entries about section ages provided by check_mk_agent; this reverts Werk 3904 Component: HW/SW Inventory Level: 2 Class: Bug fix Version: 1.5.0i1 These HW/SW inventory entries filled up inventory archive and slowed down the monitoring system. See also Werk 4485.

7 years, 5 months

Check_MK Werk 8656: Button "All Logfiles" in logwatch user interface now works in distributed mode

by Mathias Kettner

ID: 8656 Title: Button "All Logfiles" in logwatch user interface now works in distributed mode Component: Multisite Level: 2 Class: Bug fix Version: 1.5.0i1 The problem was that this button would only show the log files that are on the same monitoring site as the currently shown log file or host. This problem only appeared in a distributed environment.

7 years, 5 months

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Checkmk werks level2 June 2017