From 832df5265f6bcf0c71ee2256cfe9acb8be99ea86 Mon Sep 17 00:00:00 2001
From: Yavor Konstantinov <7553015+sehnsucht13@users.noreply.github.com>
Date: Thu, 23 Oct 2025 21:44:19 -0700
Subject: [PATCH] Fix 'NaN%' issue when running volume.fsck (#7368)

* Fix 'NaN%' issue when running volume.fsck

- Running `volume.fsck` on an empty cluster will display 'NaN%'.

* Refactor

- Extract cound of orphan chunks in summary to new var.
- Restore handling for 'NaN' for individual volumes. Its not necessary
  because the check is already done.

* Make code more idiomatic
---
 weed/shell/command_volume_fsck.go | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/weed/shell/command_volume_fsck.go b/weed/shell/command_volume_fsck.go
index 2ee4309e4..a8ccebf84 100644
--- a/weed/shell/command_volume_fsck.go
+++ b/weed/shell/command_volume_fsck.go
@@ -384,7 +384,12 @@ func (c *commandVolumeFsck) findExtraChunksInVolumeServers(dataNodeVolumeIdToVIn
 	}
 
 	if !applyPurging {
-		pct := float64(totalOrphanChunkCount*100) / (float64(totalOrphanChunkCount + totalInUseCount))
+		var pct float64
+
+		if totalCount := totalOrphanChunkCount + totalInUseCount; totalCount > 0 {
+			pct = float64(totalOrphanChunkCount) * 100 / (float64(totalCount))
+		}
+
 		fmt.Fprintf(c.writer, "\nTotal\t\tentries:%d\torphan:%d\t%.2f%%\t%dB\n",
 			totalOrphanChunkCount+totalInUseCount, totalOrphanChunkCount, pct, totalOrphanDataSize)