From d47fe255aebe00e1d67571cd415c3d85a2c84711 Mon Sep 17 00:00:00 2001
From: Minglei Jin <mljin@taosdata.com>
Date: Fri, 14 Jun 2024 17:09:48 +0800
Subject: [PATCH] remova level 0's empty wals when closing vnode

---
 source/libs/parser/src/parTranslater.c | 4 ++--
 source/libs/wal/src/walMgmt.c          | 6 ++++++
 2 files changed, 8 insertions(+), 2 deletions(-)

diff --git a/source/libs/parser/src/parTranslater.c b/source/libs/parser/src/parTranslater.c
index 89d256fce0..2bdee5e3bf 100644
--- a/source/libs/parser/src/parTranslater.c
+++ b/source/libs/parser/src/parTranslater.c
@@ -7275,7 +7275,7 @@ static int32_t translateAlterDatabase(STranslateContext* pCxt, SAlterDatabaseStm
                                      "Invalid option, wal_level 0 should be used with replica 1");
     }
   }
-  /*
+#if 0
   if (pStmt->pOptions->replica > 1 && pStmt->pOptions->walLevel < 1) {
     SDbCfgInfo dbCfg = {0};
     dbCfg.walLevel = -1;
@@ -7285,7 +7285,7 @@ static int32_t translateAlterDatabase(STranslateContext* pCxt, SAlterDatabaseStm
                                      "Invalid option, wal_level 0 should be used with replica 1");
     }
   }
-  */
+#endif
   int32_t code = checkDatabaseOptions(pCxt, pStmt->dbName, pStmt->pOptions);
   if (TSDB_CODE_SUCCESS != code) {
     return code;
diff --git a/source/libs/wal/src/walMgmt.c b/source/libs/wal/src/walMgmt.c
index 54e6abd85a..219bbd9664 100644
--- a/source/libs/wal/src/walMgmt.c
+++ b/source/libs/wal/src/walMgmt.c
@@ -233,6 +233,12 @@ void walClose(SWal *pWal) {
   taosThreadMutexUnlock(&pWal->mutex);
 
   taosRemoveRef(tsWal.refSetId, pWal->refId);
+
+  if (pWal->cfg.level == TAOS_WAL_SKIP) {
+    wInfo("vgId:%d, remove all wals, path:%s", pWal->cfg.vgId, pWal->path);
+    taosRemoveDir(pWal->path);
+    taosMkDir(pWal->path);
+  }
 }
 
 static void walFreeObj(void *wal) {