From b1e0da9578c4406bfb2e9e93cf2c2cd737ea9eb2 Mon Sep 17 00:00:00 2001
From: "Lei, HUANG" <6406592+v0y4g3r@users.noreply.github.com>
Date: Tue, 28 Jul 2026 21:41:08 +0800
Subject: [PATCH] fix(mito2): suppress empty compaction skip logs (#8667)

Signed-off-by: Lei, HUANG <ratuthomm@gmail.com>
---
 src/mito2/src/compaction/twcs.rs | 16 +++++++++-------
 1 file changed, 9 insertions(+), 7 deletions(-)

diff --git a/src/mito2/src/compaction/twcs.rs b/src/mito2/src/compaction/twcs.rs
index cfa44d5045..ae00bbc63d 100644
--- a/src/mito2/src/compaction/twcs.rs
+++ b/src/mito2/src/compaction/twcs.rs
@@ -79,13 +79,15 @@ impl TwcsPicker {
                     .into_iter()
                     .partition(|fg| fg.size() <= max_size as usize);
                 files_to_merge = kept_files;
-                info!(
-                    "Skipped {} large files in append mode for region {}, window {}, max_size: {}",
-                    ignored_files.len(),
-                    region_id,
-                    window,
-                    max_size
-                );
+                if !ignored_files.is_empty() {
+                    info!(
+                        "Skipped {} large files in append mode for region {}, window {}, max_size: {}",
+                        ignored_files.len(),
+                        region_id,
+                        window,
+                        max_size
+                    );
+                }
             }
 
             let sorted_runs = if files_to_merge.len() < 1024 {