From 12ee5b61c0ede2e6f2c61813772fe617e007b708 Mon Sep 17 00:00:00 2001
From: Mayne0213 <bluemayne0213@icloud.com>
Date: Fri, 9 Jan 2026 23:43:01 +0900
Subject: [PATCH] FIX(prometheus): enable out-of-order time window

- Set outOfOrderTimeWindow to 5m for TSDB
- Allow slightly out-of-order samples from distributed collectors
- Prevents data loss from timing differences
---
 prometheus/helm-values.yaml | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/prometheus/helm-values.yaml b/prometheus/helm-values.yaml
index a3ec233..d183aa2 100644
--- a/prometheus/helm-values.yaml
+++ b/prometheus/helm-values.yaml
@@ -67,6 +67,10 @@ prometheus:
     evaluationInterval: 60s   # 30s → 60s
     retention: 3d             # Local retention only (no S3 upload)
 
+    # Allow out-of-order samples from OTel collectors
+    tsdb:
+      outOfOrderTimeWindow: 5m
+
     # Thanos Sidecar configuration (query only, no S3 upload)
     thanos:
       image: quay.io/thanos/thanos:v0.37.2