From a6f7abdfa392172a16ab631b56f8eefad17e2acd Mon Sep 17 00:00:00 2001
From: Antoine Grondin <antoinegrondin@gmail.com>
Date: Fri, 25 Dec 2015 11:33:46 +0700
Subject: [PATCH 1/2] firestore: reproducer for division by zero on GC

---
 index/firestorm/garbage_test.go | 15 +++++++++++++++
 1 file changed, 15 insertions(+)

diff --git a/index/firestorm/garbage_test.go b/index/firestorm/garbage_test.go
index 096823d3..3313608f 100644
--- a/index/firestorm/garbage_test.go
+++ b/index/firestorm/garbage_test.go
@@ -11,6 +11,7 @@ package firestorm
 
 import (
 	"testing"
+	"time"
 
 	"github.com/blevesearch/bleve/index"
 	"github.com/blevesearch/bleve/index/store/gtreap"
@@ -115,3 +116,17 @@ func TestGarbageCleanup(t *testing.T) {
 	}
 
 }
+
+func TestGarbageDontPanicOnEmptyDocs(t *testing.T) {
+	idx, err := NewFirestorm("", nil, index.NewAnalysisQueue(1))
+	if err != nil {
+		t.Fatal(err)
+	}
+	f := idx.(*Firestorm)
+	gc := NewGarbageCollector(f)
+	gc.garbageSleep = 30 * time.Millisecond
+
+	gc.Start()
+	time.Sleep(40 * time.Millisecond)
+	gc.Stop()
+}

From 68063436773404d85b95f1f2562ef01a24c25a33 Mon Sep 17 00:00:00 2001
From: Antoine Grondin <antoinegrondin@gmail.com>
Date: Fri, 25 Dec 2015 11:34:19 +0700
Subject: [PATCH 2/2] firestore: fix #296 for division by zero on GC

---
 index/firestorm/garbage.go | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/index/firestorm/garbage.go b/index/firestorm/garbage.go
index 42a6b999..d70d5036 100644
--- a/index/firestorm/garbage.go
+++ b/index/firestorm/garbage.go
@@ -76,6 +76,9 @@ func (gc *GarbageCollector) run() {
 				logger.Printf("garbage collector error getting doc count: %v", err)
 				continue
 			}
+			if docSize == 0 {
+				continue
+			}
 			garbageRatio := int(uint64(garbageSize) / docSize)
 			if garbageRatio > gc.garbageThreshold {
 				gc.cleanup()