From eca97bf5b49e4f1ceb251a193b877b8873fbd7fc Mon Sep 17 00:00:00 2001
From: Benguang Zhao <bgzhao@taosdata.com>
Date: Tue, 7 Mar 2023 16:44:47 +0800
Subject: [PATCH] enh: keep extra raft Logs before minimum match index

---
 source/libs/sync/src/syncMain.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/source/libs/sync/src/syncMain.c b/source/libs/sync/src/syncMain.c
index 9601cd6ab0..04e4859c5e 100644
--- a/source/libs/sync/src/syncMain.c
+++ b/source/libs/sync/src/syncMain.c
@@ -301,7 +301,7 @@ int32_t syncBeginSnapshot(int64_t rid, int64_t lastApplyIndex) {
       syncNodeRelease(pSyncNode);
       return 0;
     }
-    logRetention = TMAX(logRetention, lastApplyIndex - pSyncNode->minMatchIndex);
+    logRetention = TMAX(logRetention, lastApplyIndex - pSyncNode->minMatchIndex + logRetention);
   }
 
 _DEL_WAL: