From d99cd98c0162859b969a6811171f33acc8656fd3 Mon Sep 17 00:00:00 2001
From: shuiyisong <113876041+shuiyisong@users.noreply.github.com>
Date: Wed, 9 Jul 2025 19:46:07 +0800
Subject: [PATCH] fix: skip nan in prom remote write pipeline (#6489)

Signed-off-by: shuiyisong <xixing.sys@gmail.com>
---
 src/servers/src/proto.rs | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/src/servers/src/proto.rs b/src/servers/src/proto.rs
index e111cf517f..1e9c2dfed8 100644
--- a/src/servers/src/proto.rs
+++ b/src/servers/src/proto.rs
@@ -390,6 +390,10 @@ impl PromSeriesProcessor {
         let one_sample = series.samples.len() == 1;
 
         for s in series.samples.iter() {
+            // skip NaN value
+            if s.value.is_nan() {
+                continue;
+            }
             let timestamp = s.timestamp;
             pipeline_map.insert(GREPTIME_TIMESTAMP.to_string(), Value::Int64(timestamp));
             pipeline_map.insert(GREPTIME_VALUE.to_string(), Value::Float64(s.value));