自定义定时任务，代码逻辑调整

WarehouseMgr/Tnb.WarehouseMgr/TimedTaskBackgroundService.cs

@@ -110,7 +110,7 @@ namespace Tnb.WarehouseMgr
         private Task TimedTask(Func<CancellationTokenSource, Task> action, CancellationTokenSource cts, int interval, TimeSpanUnit timeType = TimeSpanUnit.Seconds)
         {
             var token = cts.Token;
-            return Task.Run(async () =>
+            return Task.Factory.StartNew(async () =>
             {
                 while (!token.IsCancellationRequested)
                 {
@@ -135,7 +135,37 @@ namespace Tnb.WarehouseMgr
                     });
                     await TaskDelay(timeType, interval);
                 }
-            }, token);
+            }, cts.Token, TaskCreationOptions.None, new CustomerTaskScheduler());
+
+            #region ThreadPool 线程运行会导致线程饥饿
+            //return Task.Run(async () =>
+            //{
+            //    while (!token.IsCancellationRequested)
+            //    {
+
+            //        await action(cts).Catch(async ex =>
+            //        {
+            //            if (ex is TimedTaskException timedTaskEx and not null)
+            //            {
+            //                await _eventPublisher.PublishAsync(new LogEventSource("Log:CreateExLog", timedTaskEx.options!, new SysLogEntity
+            //                {
+            //                    Id = SnowflakeIdHelper.NextId(),
+            //                    Category = 4,
+            //                    UserId = timedTaskEx.UserId,
+            //                    UserName = timedTaskEx.UserName,
+            //                    IPAddress = NetHelper.Ip,
+            //                    RequestURL = timedTaskEx.RequestURL,
+            //                    RequestMethod = timedTaskEx.RequestMethod,
+            //                    Json = timedTaskEx + "\n" + timedTaskEx.InnerException?.StackTrace + "\n" + timedTaskEx?.TargetSite?.GetParameters().ToString(),
+            //                    //PlatForm = string.Format("{0}-{1}", userAgent.OS.ToString(), userAgent.RawValue),
+            //                    CreatorTime = DateTime.Now
+            //                }));
+            //            }
+            //        });
+            //        await TaskDelay(timeType, interval);
+            //    }
+            //}, token); 
+            #endregion
         }
 
         private Task TaskDelay(TimeSpanUnit timeType, int interval)
@@ -153,4 +183,43 @@ namespace Tnb.WarehouseMgr
         }
 
     }
+    /// <summary>
+    /// 自定义任务调度器，保证长任务在单独的线程中运行
+    /// </summary>
+    internal class CustomerTaskScheduler : TaskScheduler
+    {
+        // 这边的 BlockingCollection 只是举个例子，如果是普通的队列，配合锁也是可以的。
+        private readonly BlockingCollection<Task> _tasks = new BlockingCollection<Task>();
+
+        public CustomerTaskScheduler()
+        {
+            var thread = new Thread(() =>
+            {
+                foreach (var task in _tasks.GetConsumingEnumerable())
+                {
+                    TryExecuteTask(task);
+                }
+            })
+            {
+                IsBackground = true
+            };
+            thread.Start();
+        }
+
+        protected override IEnumerable<Task> GetScheduledTasks()
+        {
+            return _tasks;
+        }
+
+        protected override void QueueTask(Task task)
+        {
+            _tasks.Add(task);
+        }
+
+        protected override bool TryExecuteTaskInline(Task task, bool taskWasPreviouslyQueued)
+        {
+            return false;
+        }
+    }
+
 }