diff --git a/documentation/INCIDENTS.md b/documentation/INCIDENTS.md
index f649114..d6fa571 100644
--- a/documentation/INCIDENTS.md
+++ b/documentation/INCIDENTS.md
@@ -1211,3 +1211,20 @@ eae-adp-jump01# rcctl start prometheus
 eae-adp-jump01# syspatch
 eae-adp-jump01# reboot
 ```
+
+
+028 2022.11.29 02:00 | periodically restart prometheus
+------------------------------------------------------
+
+**problem**:
+`prometheus` crashed regularly on `eae-adp-jump01`.
+It seems like `OpenBSD` is missing some functionality on file handles that let's `prometheus` crash.
+Here is an [github issue](https://github.com/prometheus/prometheus/issues/8799) (for an older `OpenBSD` release) that descripes the same problems.
+
+**solution**:
+until I've got time to install a new linux machine somewhere that does the monitoring: regularly restart `prometheus`:
+```
+eae-adp-jump01# crontab -e
+[...]
+0	*/2	*	*	*	rcctl restart prometheus
+```