From 4e9b2adf86faad9cd2652c5930529be700d220be Mon Sep 17 00:00:00 2001
From: Konstantin Lebedev <9497591+kmlebedev@users.noreply.github.com>
Date: Thu, 15 Jan 2026 20:25:33 +0500
Subject: [PATCH] Division by zero if capacity is 0 produces Inf.

---
 weed/shell/command_volume_balance.go | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/weed/shell/command_volume_balance.go b/weed/shell/command_volume_balance.go
index 1a0db8f88..0643b9bde 100644
--- a/weed/shell/command_volume_balance.go
+++ b/weed/shell/command_volume_balance.go
@@ -349,6 +349,9 @@ func capacityByFreeVolumeCount(diskType types.DiskType, volumeSizeLimitMb uint64
 
 func (n *Node) localVolumeRatio(capacityFunc CapacityFunc) float64 {
 	capacity, used, isDensityBased := capacityFunc(n.info)
+	if capacity == 0 {
+		return 0
+	}
 	if isDensityBased {
 		return float64(used) / capacity
 	}
@@ -357,6 +360,9 @@ func (n *Node) localVolumeRatio(capacityFunc CapacityFunc) float64 {
 
 func (n *Node) localVolumeNextRatio(capacityFunc CapacityFunc) float64 {
 	capacity, used, isDensityBased := capacityFunc(n.info)
+	if capacity == 0 {
+		return 0
+	}
 	if isDensityBased {
 		return float64(used+1) / capacity
 	}