From b05421dbb50b2897e4a796a51844f45493ec3812 Mon Sep 17 00:00:00 2001 From: Viktor Barzin Date: Wed, 18 Mar 2026 21:45:26 +0000 Subject: [PATCH] add comment explaining prometheus 4Gi minimum memory requirement [ci skip] --- .../monitoring/modules/monitoring/prometheus_chart_values.tpl | 2 ++ 1 file changed, 2 insertions(+) diff --git a/stacks/monitoring/modules/monitoring/prometheus_chart_values.tpl b/stacks/monitoring/modules/monitoring/prometheus_chart_values.tpl index c4d5070b..b364238b 100755 --- a/stacks/monitoring/modules/monitoring/prometheus_chart_values.tpl +++ b/stacks/monitoring/modules/monitoring/prometheus_chart_values.tpl @@ -158,6 +158,8 @@ server: existingClaim: prometheus-data # storageClass: rook-cephfs retention: "52w" + # NOTE: Memory must be >= 4Gi. The WAL tmpfs (2Gi, medium: Memory) shares + # the container's cgroup limit. At 3Gi, Prometheus OOM-kills during WAL replay. resources: requests: cpu: 100m