From 4e3743e573d5547ae1a28bb1c0bcb3e20db93674 Mon Sep 17 00:00:00 2001
From: Max Kotliar <mkotlyar@victoriametrics.com>
Date: Tue, 12 May 2026 16:29:52 +0300
Subject: [PATCH] skip empty blocks

---
 app/vmagent/remotewrite/client.go | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/app/vmagent/remotewrite/client.go b/app/vmagent/remotewrite/client.go
index 9af3160806..2610cb5620 100644
--- a/app/vmagent/remotewrite/client.go
+++ b/app/vmagent/remotewrite/client.go
@@ -526,6 +526,10 @@ func (c *client) drainInMemoryQueue(stopCtx context.Context, block []byte) {
 			// In this case it is guaranteed that fq will be empty
 			return
 		}
+		if len(block) == 0 {
+			// skip empty data blocks from sending
+			continue
+		}
 
 		// at this stage c.stopCh should be closed
 		// so sendBlock function should not perform retries