From c366ccffb479afcd66016cedbdb738d79661e178 Mon Sep 17 00:00:00 2001
From: Valeriy Khakhutskyy <1292899+valeriy42@users.noreply.github.com>
Date: Wed, 22 Jul 2026 08:56:06 +0200
Subject: [PATCH] [ML] Downgrade redundant CStateDecompressor empty-state log
 to INFO (#3082)

The LOG_ERROR at readHeader() for missing or empty compressed state
documents was never addressed in #2895 and is redundant with parseNext()
diagnostics. Downgrade to INFO so routine categorizer state restore
misses no longer trip the serverless ERROR log-rate promotion gate.

Relates #2875

(cherry picked from commit bfaa5cd165cd62931adb6142f4de749bcf79bbce)
---
 lib/core/CStateDecompressor.cc | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/lib/core/CStateDecompressor.cc b/lib/core/CStateDecompressor.cc
index 2d1f926551..acea58898e 100644
--- a/lib/core/CStateDecompressor.cc
+++ b/lib/core/CStateDecompressor.cc
@@ -149,7 +149,7 @@ bool CStateDecompressor::CDechunkFilter::parseNext() {
 
 bool CStateDecompressor::CDechunkFilter::readHeader() {
     if (this->parseNext() == false) {
-        LOG_ERROR(<< "Failed to find valid JSON");
+        LOG_INFO(<< "No valid JSON found in compressed state stream (empty or missing state document)");
         m_Initialised = false;
         m_IStream.reset();
         ++m_CurrentDocNum;