ESENT: try 2

WelsonJS.Toolkit/WelsonJS.Launcher/InstancesForm.cs

@@ -38,6 +38,7 @@ namespace WelsonJS.Launcher
             if (!Directory.Exists(instancesRoot))
                 return;
 
+            /*
             foreach (string dir in Directory.GetDirectories(instancesRoot))
             {
                 string timestampFile = Path.Combine(dir, ".welsonjs_first_deploy_time");
@@ -66,6 +67,25 @@ namespace WelsonJS.Launcher
                     });
                 }
             }
+            */
+
+            var instances = Program._InstancesMetadataStore.FindAll();
+            foreach (var instance in instances)
+            {
+                string instanceId = instance["InstanceId"].ToString();
+                string firstDeployTime = instance.ContainsKey("FirstDeployTime") 
+                    ? ((DateTime)instance["FirstDeployTime"]).ToString(timestampFormat) 
+                    : "Unknown";
+
+                lvInstances.Items.Add(new ListViewItem(new[]
+                {
+                    instanceId,
+                    firstDeployTime
+                })
+                {
+                    Tag = Path.Combine(instancesRoot, instanceId)
+                });
+            }
         }
 
         private void btnStart_Click(object sender, EventArgs e)

WelsonJS.Toolkit/WelsonJS.Launcher/MainForm.cs

@@ -140,7 +140,7 @@ namespace WelsonJS.Launcher
                 ZipFile.ExtractToDirectory(filePath, workingDirectory);
 
                 // record the first deploy time
-                RecordFirstDeployTime(workingDirectory);
+                RecordFirstDeployTime(workingDirectory, instanceId);
 
                 // follow the sub-directory
                 workingDirectory = Program.GetWorkingDirectory(instanceId, true);
@@ -157,34 +157,35 @@ namespace WelsonJS.Launcher
             SafeInvoke(() => EnableUI());
         }
 
-        private void RecordFirstDeployTime(string directory)
+        private void RecordFirstDeployTime(string directory, string instanceId)
         {
-            /*
+            // get current time
+            DateTime now = DateTime.Now;
+
+            // record to the metadata database
+            try
+            {
+                Program._InstancesMetadataStore.Insert(new Dictionary<string, object>
+                {
+                    ["InstanceId"] = instanceId,
+                    ["FirstDeployTime"] = now
+                }, out _);
+            }
+            catch (Exception ex)
+            {
+                Trace.TraceError($"Failed to record first deploy time: {ex.Message}");
+            }
+
+            // record to the instance directory
             try
             {
                 string filePath = Path.Combine(directory, ".welsonjs_first_deploy_time");
-                string text = DateTime.Now.ToString("yyyy-MM-dd HH:mm:ss");
+                string text = now.ToString("yyyy-MM-dd HH:mm:ss");
-
                 File.WriteAllText(filePath, text);
             }
             catch (Exception ex)
             {
-                throw new Exception($"Failed to record first deploy time: {ex.Message}");
+                Trace.TraceError($"Failed to record first deploy time: {ex.Message}");
-            }
-            */
-
-            try
-            {
-                object key;
-                Program._MetadataStore.Insert(new Dictionary<string, object>
-                {
-                    ["InstanceId"] = "abc123",
-                    ["FirstDeployTime"] = "2025-06-19 10:00:00"
-                }, out key);
-            }
-            catch (Exception ex)
-            {
-                Trace.TraceWarning(ex.Message);
             }
         }
 

WelsonJS.Toolkit/WelsonJS.Launcher/MetadataStore.cs

@@ -9,6 +9,7 @@ using System.Diagnostics;
 using System.IO;
 using System.Linq;
 using System.Text;
+using System.Windows.Forms;
 using Microsoft.Isam.Esent.Interop;
 using WelsonJS.Launcher.Storage;
 
@@ -104,6 +105,18 @@ namespace WelsonJS.Launcher
                 Api.JetAddColumn(_session, tableid, col.Name, coldef, null, 0, out _);
             }
 
+            string indexName = "primary";
+            string indexKey = $"+{_primaryKey}\0\0"; // Primary key ASC
+
+            Api.JetCreateIndex(
+                _session,
+                tableid,
+                indexName,
+                CreateIndexGrbit.IndexPrimary | CreateIndexGrbit.IndexUnique,
+                indexKey,
+                indexKey.Length,
+                100);
+
             Api.JetCloseTable(_session, tableid);
             Api.JetCommitTransaction(_session, CommitTransactionGrbit.None);
         }
@@ -156,6 +169,7 @@ namespace WelsonJS.Launcher
                 {
                     Api.JetBeginTransaction(_session);
 
+                    Api.JetSetCurrentIndex(_session, table, null);
                     MakeKeyByType(keyValue, keyType, _session, table);
                     bool found = Api.TrySeek(_session, table, SeekGrbit.SeekEQ);
 
@@ -180,6 +194,7 @@ namespace WelsonJS.Launcher
                 catch (Exception ex)
                 {
                     Trace.TraceError($"[ESENT] Operation failed: {ex.Message}");
+                    MessageBox.Show($"[ESENT] Operation failed: {ex.Message}");
                     Api.JetRollback(_session, RollbackTransactionGrbit.None);
                     return false;
                 }
@@ -193,6 +208,7 @@ namespace WelsonJS.Launcher
 
             using (var table = new Table(_session, _dbid, _schema.TableName, OpenTableGrbit.ReadOnly))
             {
+                Api.JetSetCurrentIndex(_session, table, null);
                 MakeKeyByType(keyValue, keyType, _session, table);
                 if (!Api.TrySeek(_session, table, SeekGrbit.SeekEQ))
                     return null;
@@ -244,6 +260,7 @@ namespace WelsonJS.Launcher
 
             using (var table = new Table(_session, _dbid, _schema.TableName, OpenTableGrbit.Updatable))
             {
+                Api.JetSetCurrentIndex(_session, table, null);
                 MakeKeyByType(keyValue, keyType, _session, table);
                 if (!Api.TrySeek(_session, table, SeekGrbit.SeekEQ))
                     return false;

WelsonJS.Toolkit/WelsonJS.Launcher/Program.cs

@@ -19,7 +19,7 @@ namespace WelsonJS.Launcher
     {
         static Mutex mutex;
         public static ResourceServer _ResourceServer;
-        public static MetadataStore _MetadataStore;
+        public static MetadataStore _InstancesMetadataStore;
 
         [STAThread]
         static void Main()
@@ -39,7 +39,7 @@ namespace WelsonJS.Launcher
                 new Column("FirstDeployTime", typeof(DateTime), 1)
             });
             schema.SetPrimaryKey("InstanceId");
-            _MetadataStore = new MetadataStore(schema);
+            _InstancesMetadataStore = new MetadataStore(schema);
 
             // draw the main form
             Application.EnableVisualStyles();
@@ -47,7 +47,7 @@ namespace WelsonJS.Launcher
             Application.Run(new MainForm());
 
             // close the database
-            _MetadataStore.Dispose();
+            _InstancesMetadataStore.Dispose();
 
             // destory the mutex
             mutex.ReleaseMutex();

WelsonJS.Toolkit/WelsonJS.Launcher/Storage/Column.cs

@@ -1,6 +1,6 @@
 // Column.cs
 // SPDX-License-Identifier: GPL-3.0-or-later
-// SPDX-FileCopyrightText: 2025 Catswords OSS and WelsonJS Contributors
+// SPDX-FileCopyrightText: 2025 Namhyeon Go, Catswords OSS and WelsonJS Contributors
 // https://github.com/gnh1201/welsonjs
 // 
 using System;

WelsonJS.Toolkit/WelsonJS.Launcher/Storage/Schema.cs

@@ -1,6 +1,6 @@
 // TableSchema.cs
 // SPDX-License-Identifier: GPL-3.0-or-later
-// SPDX-FileCopyrightText: 2025 Catswords OSS and WelsonJS Contributors
+// SPDX-FileCopyrightText: 2025 Namhyeon Go, Catswords OSS and WelsonJS Contributors
 // https://github.com/gnh1201/welsonjs
 // 
 using System;