Fine tune DB settings

Emby.Server.Implementations/Data/BaseSqliteRepository.cs

@@ -60,11 +60,16 @@ namespace Emby.Server.Implementations.Data
         /// <value>The cache size or null.</value>
         protected virtual int? CacheSize => null;
 
+        /// <summary>
+        /// Gets the locking mode. <see href="https://www.sqlite.org/pragma.html#pragma_locking_mode" />.
+        /// </summary>
+        protected virtual string LockingMode => "EXCLUSIVE";
+
         /// <summary>
         /// Gets the journal mode. <see href="https://www.sqlite.org/pragma.html#pragma_journal_mode" />.
         /// </summary>
         /// <value>The journal mode.</value>
-        protected virtual string JournalMode => "TRUNCATE";
+        protected virtual string JournalMode => "WAL";
 
         /// <summary>
         /// Gets the page size.
@@ -116,6 +121,11 @@ namespace Emby.Server.Implementations.Data
                 WriteConnection.Execute("PRAGMA cache_size=" + CacheSize.Value);
             }
 
+            if (!string.IsNullOrWhiteSpace(LockingMode))
+            {
+                WriteConnection.Execute("PRAGMA locking_mode=" + LockingMode);
+            }
+
             if (!string.IsNullOrWhiteSpace(JournalMode))
             {
                 WriteConnection.Execute("PRAGMA journal_mode=" + JournalMode);

Emby.Server.Implementations/Data/SqliteItemRepository.cs

@@ -359,8 +359,6 @@ namespace Emby.Server.Implementations.Data
 
             string[] queries =
             {
-                "PRAGMA locking_mode=EXCLUSIVE",
-
                 "create table if not exists TypedBaseItems (guid GUID primary key NOT NULL, type TEXT NOT NULL, data BLOB NULL, ParentId GUID NULL, Path TEXT NULL)",
 
                 "create table if not exists AncestorIds (ItemId GUID NOT NULL, AncestorId GUID NOT NULL, AncestorIdText TEXT NOT NULL, PRIMARY KEY (ItemId, AncestorId))",

Jellyfin.Server/Program.cs

@@ -273,10 +273,6 @@ namespace Jellyfin.Server
             ServicePointManager.Expect100Continue = false;
 
             Batteries_V2.Init();
-            if (raw.sqlite3_enable_shared_cache(1) != raw.SQLITE_OK)
-            {
-                _logger.LogWarning("Failed to enable shared cache for SQLite");
-            }
         }
 
         /// <summary>