From a31487b8737639d7896905f77026399848770a1a Mon Sep 17 00:00:00 2001
From: Ben Johnson <benbjohnson@yahoo.com>
Date: Thu, 19 Nov 2020 11:15:24 -0700
Subject: [PATCH] Fix rbf write root record iterator reset

---
 .gitignore     |  1 +
 rbf/rbf.go     |  2 +-
 rbf/tx_test.go | 24 ++++++++++++++++++++++++
 3 files changed, 26 insertions(+), 1 deletion(-)

diff --git a/.gitignore b/.gitignore
index 6e553c794..9bf572296 100644
--- a/.gitignore
+++ b/.gitignore
@@ -10,3 +10,4 @@ release-pilosa-fsck.*.*.tar.gz
 /log.*
 /tourna.log.*
 pilosa
+*.dot
diff --git a/rbf/rbf.go b/rbf/rbf.go
index 2244a1523..f9e7ebaf0 100644
--- a/rbf/rbf.go
+++ b/rbf/rbf.go
@@ -181,7 +181,7 @@ func writeRootRecords(page []byte, itr *immutable.SortedMapIterator) (err error)
 
 		data, err = WriteRootRecord(data, &RootRecord{Name: name.(string), Pgno: pgno.(uint32)})
 		if err != nil {
-			itr.Prev()
+			itr.Seek(name)
 			return err
 		}
 	}
diff --git a/rbf/tx_test.go b/rbf/tx_test.go
index bc0d9f591..5785067ae 100644
--- a/rbf/tx_test.go
+++ b/rbf/tx_test.go
@@ -486,6 +486,30 @@ func TestTx_Dump(t *testing.T) {
 	}
 }
 
+func TestTx_CreateBitmap(t *testing.T) {
+	t.Run("Bulk", func(t *testing.T) {
+		db := MustOpenDB(t)
+		defer MustCloseDB(t, db)
+
+		tx, err := db.Begin(true)
+		if err != nil {
+			t.Fatal(err)
+		}
+		defer tx.Rollback()
+
+		if err := tx.CreateBitmap(fmt.Sprintf("%4000x", 0)); err != nil {
+			t.Fatal(err)
+		} else if err := tx.CreateBitmap(fmt.Sprintf("%4000x", 1)); err != nil {
+			t.Fatal(err)
+		} else if err := tx.CreateBitmap(fmt.Sprintf("%4000x", 2)); err != nil {
+			t.Fatal(err)
+		}
+		if err := tx.Commit(); err != nil {
+			t.Fatal(err)
+		}
+	})
+}
+
 func rbfName(index, field, view string, shard uint64) string {
 	return string(txkey.Prefix(index, field, view, shard))
 }