From ce41e394dc1f3bbcaa4f2106e2ec5e55caa6bdf0 Mon Sep 17 00:00:00 2001
From: vyzo <vyzo@hackzen.org>
Date: Tue, 1 Dec 2020 18:34:11 +0200
Subject: [PATCH] handle MDB_KEYEXIST in liveset marking

---
 chain/store/splitstore/liveset.go | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/chain/store/splitstore/liveset.go b/chain/store/splitstore/liveset.go
index 21c139a80..a598e42da 100644
--- a/chain/store/splitstore/liveset.go
+++ b/chain/store/splitstore/liveset.go
@@ -73,7 +73,11 @@ func NewLiveSet(env *lmdb.Env, name string) (LiveSet, error) {
 
 func (s *liveSet) Mark(cid cid.Cid) error {
 	return s.env.Update(func(txn *lmdb.Txn) error {
-		return txn.Put(s.db, cid.Hash(), markBytes, 0)
+		err := txn.Put(s.db, cid.Hash(), markBytes, 0)
+		if err == nil || lmdb.IsErrno(err, lmdb.KeyExist) {
+			return nil
+		}
+		return err
 	})
 }