Add note about check intervals

refs #11825

diff --git a/doc/6-object-types.md b/doc/6-object-types.md
index b47ca746740d972e84a7c6539940c44e7b598921..b259c98c44460d1bcccdcb1a4836f78a5c897a52 100644 (file)
--- a/doc/6-object-types.md
+++ b/doc/6-object-types.md
@@ -589,6 +589,9 @@ Configuration Attributes:
   icon\_image     |**Optional.** Icon image for the host. Used by external interfaces only.
   icon\_image\_alt|**Optional.** Icon image description for the host. Used by external interface only.
 
+The actual check interval might deviate slightly from the configured values due to the fact that Icinga tries
+to evenly distribute all checks over a certain period of time, i.e. to avoid load spikes.
+
 > **Best Practice**
 >
 > The `address` and `address6` attributes are required for running commands using
@@ -1238,6 +1241,9 @@ Configuration Attributes:
 Service objects have composite names, i.e. their names are based on the host_name attribute and the name you specified. This means
 you can define more than one object with the same (short) name as long as the `host_name` attribute has a different value.
 
+The actual check interval might deviate slightly from the configured values due to the fact that Icinga tries
+to evenly distribute all checks over a certain period of time, i.e. to avoid load spikes.
+
 Runtime Attributes:
 
   Name                      | Type          | Description