服务器上出现这个错误，然后CPU就跳到100%了

2015-06-10 10:17:07,866 [113] INFO - BD - 缓存的单位换算率，监控到了异常改动：
属性(DestUnitPrecision), 由 0 改为 0
调用堆栈：
在 Kingdee.K3.BD.App.Core.UnitConvertCache.WriteErrLog(String propName, String oldPropValue, String newPropValue)
在 Kingdee.K3.Core.BD.UnitConvert.set_DestUnitPrecision(Int32 value)
在 Kingdee.K3.BD.BaseDataController.UnitController.UpdateViewPriceQtyFields(UpdateViewArgs e)
在 Kingdee.BOS.Web.DynamicForm.DataBinder.FieldDataChanged(ModelDataChangedEventArgs e)
在 Kingdee.BOS.Core.DynamicForm.ModelDataChangedHandle.Invoke(Object sender, ModelDataChangedEventArgs e)
在 Kingdee.BOS.Core.DynamicForm.AbstractDynamicFormModel.UpdateField(Field field, DynamicObject activeRow, Object value, Int32 rowIndex, Object oldValue)
在 Kingdee.BOS.Core.DynamicForm.AbstractDynamicFormModel.SetValue(Field field, DynamicObject activeRow, Object value, Int32 rowIndex)
在 Kingdee.BOS.Core.DynamicForm.AbstractDynamicFormModel.SetValue(Field field, Object value, Int32 row)
在 Kingdee.BOS.Core.DynamicForm.AbstractDynamicFormModel.SetValue(String key, Object value, Int32 row)
在 Kingdee.BOS.Business.DynamicForm.BusinessService.TakeBasePropertyData.SetPropValue(Field field, Object oValue, Int32 row)
在 Kingdee.BOS.Business.DynamicForm.BusinessService.TakeBasePropertyData.SetValue(String sKey, String sSourceKey, BaseDataField sourceFiled, DynamicObject obj, Int32 row)
在 Kingdee.BOS.Business.DynamicForm.BusinessService.TakeBasePropertyData.SetPropertyData(String[] parameters, FormBusinessServiceArgs e)
在 Kingdee.BOS.Business.DynamicForm.BusinessService.TakeBasePropertyData.DoAction(FormBusinessServiceArgs e)
在 Kingdee.BOS.Core.DynamicForm.FormBusinessServiceUtil.InvokeServices(IDynamicFormView view, Object source, IEnumerable`1 services, Int32 actionType, String activeEntity, DynamicObject activeRow, Int32 rowIndex)
在 Kingdee.BOS.Web.DynamicForm.BusinessServiceCaller.InvokeFormBusiness(IDynamicFormView view, Object source, List`1 formBusinessServices, Int32 actionType, String entityKey, Int32 row)
在 Kingdee.BOS.Web.DynamicForm.BusinessServiceCaller.CallUpdateBusinessService(FieldAppearance fieldAppearance, Int32 row)
在 Kingdee.BOS.Web.DynamicForm.DynamicWebFormView.SetItemValueByIDFromClient(String key, Object id, Int32 row)
在 Kingdee.BOS.Web.DynamicForm.DynamicWebFormController.SetItemValueByIDFromClient(String key, Object id, Int32 row, JSONArray postDatas)
在 System.RuntimeMethodHandle.InvokeMethod(Object target, Object[] arguments, Signature sig, Boolean constructor)
在 System.Reflection.RuntimeMethodInfo.UnsafeInvokeInternal(Object obj, Object[] parameters, Object[] arguments)
在 System.Reflection.RuntimeMethodInfo.Invoke(Object obj, BindingFlags invokeAttr, Binder binder, Object[] parameters, CultureInfo culture)
在 System.Reflection.MethodBase.Invoke(Object obj, Object[] parameters)
在 Kingdee.BOS.ServiceFacade.ServicesStub.DynamicForm.DynamicFormService.Call(String serviceName, String pageId, String layoutId, String methodName, IList pparams, JavaScriptSerializer js)
在 Kingdee.BOS.ServiceFacade.ServicesStub.DynamicForm.DynamicFormService.Call(String serviceName, String pageId, String methodName, JSONArray pparams)
在 System.RuntimeMethodHandle.InvokeMethod(Object target, Object[] arguments, Signature sig, Boolean constructor)
在 System.Reflection.RuntimeMethodInfo.UnsafeInvokeInternal(Object obj, Object[] parameters, Object[] arguments)
在 System.Reflection.RuntimeMethodInfo.Invoke(Object obj, BindingFlags invokeAttr, Binder binder, Object[] parameters, CultureInfo culture)
在 Kingdee.BOS.ServiceFacade.KDServiceFx.ServiceExecutor.Execute(KDServiceContext context, ServiceType svcType, String[] paraValues, SerializerProxy serializeProxy, ServiceType beginMethod)
在 Kingdee.BOS.ServiceFacade.KDServiceFx.ExecuteServiceModule.OnProcess(KDServiceContext context)
在 Kingdee.BOS.ServiceFacade.KDServiceFx.ModulePipeline.ExcuteRequest(KDServiceContext context)
在 Kingdee.BOS.ServiceFacade.KDServiceFx.RequestExcuteRuntime.BeginRquest(RequestExtractor requestExtractor, WebContext webCtx)
在 Kingdee.BOS.ServiceFacade.KDServiceFx.RequestExcuteRuntime.StartRequest(RequestExtractor requestExtractor, WebContext context)
在 Kingdee.BOS.ServiceFacade.KDServiceFx.KDSVCHandler.ExecuteRequest(WebContext ctx, RequestExtractor requestExtractor)
在 Kingdee.BOS.ServiceFacade.KDServiceFx.KDSVCHandler.ProcessRequestInternal(WebContext webCtx, RequestExtractor requestExtractor)
在 System.Web.HttpApplication.CallHandlerExecutionStep.System.Web.HttpApplication.IExecutionStep.Execute()
在 System.Web.HttpApplication.ExecuteStep(IExecutionStep step, Boolean& completedSynchronously)
在 System.Web.HttpApplication.PipelineStepManager.ResumeSteps(Exception error)
在 System.Web.HttpApplication.BeginProcessRequestNotification(HttpContext context, AsyncCallback cb)
在 System.Web.HttpRuntime.ProcessRequestNotificationPrivate(IIS7WorkerRequest wr, HttpContext context)
在 System.Web.Hosting.PipelineRuntime.ProcessRequestNotificationHelper(IntPtr rootedObjectsPointer, IntPtr nativeRequestContext, IntPtr moduleData, Int32 flags)
在 System.Web.Hosting.PipelineRuntime.ProcessRequestNotification(IntPtr rootedObjectsPointer, IntPtr nativeRequestContext, IntPtr moduleData, Int32 flags)
在 System.Web.Hosting.UnsafeIISMethods.MgdIndicateCompletion(IntPtr pHandler, RequestNotificationStatus& notificationStatus)
在 System.Web.Hosting.UnsafeIISMethods.MgdIndicateCompletion(IntPtr pHandler, RequestNotificationStatus& notificationStatus)
在 System.Web.Hosting.PipelineRuntime.ProcessRequestNotificationHelper(IntPtr rootedObjectsPointer, IntPtr nativeRequestContext, IntPtr moduleData, Int32 flags)
在 System.Web.Hosting.PipelineRuntime.ProcessRequestNotification(IntPtr rootedObjectsPointer, IntPtr nativeRequestContext, IntPtr moduleData, Int32 flags)