Werk #5185: Check_MK HW/SW Inventory: The service was executed too often by default

Component HW/SW inventory
Title Check_MK HW/SW Inventory: The service was executed too often by default
Date Sep 6, 2017
Checkmk Edition Checkmk Raw (CRE)
Checkmk Version 1.4.0p11 1.5.0i1
Level Prominent Change
Class Bug Fix
Compatibility Incompatible - Manual interaction might be required

Issue: The HW/SW inventory may produce a lot of load because of wrong scheduling.

You may be affected by this bug in case you created your (master) site with 1.4.0b1 or newer. If you updated your site from older versions you are likely not affected. Slave sites that get their configuration from a master that is not affected will also not be affected, regardless of the version they were created with.

When using the hardware software inventory the regular check "Check_MK HW/SW Inventory" on each host is executed too often by default. The expected behaviour is that the regular check interval of this service is 1 day. The bug we fixed now made the check being executed once a minute. In case you have the HW/SW inventory enabled for a lot of hosts, this could lead to significant load on your Check_MK server.

Whether or not you have this issue can be checked on the "service detail" page of the "Check_MK HW/SW Inventory" service. Have a look at the "Service normal/retry check interval" column where you should see 86400s as first value (-> 1 day). If you see a value of 60s, you should fix the issue as follows.

  • Navigate to "WATO > Host & Service parameters > Monitoring configuration > Normal check interval for service checks".
  • Create a new rule with the following settings:
  • Description: Restrict HW/SW-Inventory to once a day
  • Value: 1 day
  • Services: Check_MK HW/SW Inventory$
  • Activate the changes via WATO

After this you should check the service detail page again and see the 86400s interval.

Even when you update your existing site to 1.4.0p11 or newer, you will have to apply the fix manually to existing installations when your installation is affected. Sites created with 1.4.0p11 or newer won't be affected.

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