Skip to content
New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Jump to bottom

Bug 1881208: add alert for system.slice rss going over system-reserved #2033

Merged
merged 1 commit into from
Sep 21, 2020
Merged

Bug 1881208: add alert for system.slice rss going over system-reserved #2033

Changes from all commits
Commits
Show all changes
1 commit
Select commit
File filter

Filter by extension

Filter by extension
Conversations
Failed to load comments.
Loading
Jump to
Jump to file
Failed to load files.
Loading
Diff view
Diff view
9 changes: 9 additions & 0 deletions install/0000_90_machine-config-operator_01_prometheus-rules.yaml
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -43,3 +43,12 @@ spec:
severity: warning
annotations:
message: "Kubelet health failure threshold reached"
- name: system-memory-exceeds-reservation
rules:
- alert: SystemMemoryExceedsReservation
expr: |
sum by (node) (container_memory_rss{id="/system.slice"}) > ((sum by (node) (kube_node_status_capacity{resource="memory"} - kube_node_status_allocatable{resource="memory"})) * 0.9)
labels:
severity: warning
annotations:
message: "System memory usage of {{ $value | humanize }} on {{ $labels.node }} exceeds 90% of the reservation. Reserved memory ensures system processes can function even when the node is fully allocated and protects against workload out of memory events impacting the proper functioning of the node. The reservation may be increased (https://docs.openshift.com/container-platform/latest/nodes/nodes/nodes-nodes-managing.html) when running nodes with high numbers of pods."