Lucene.net感觉非常弱呀。。。怪异问题，用过的人进来帮忙看看

[datahandler2]

这几天公司网站搜索栏目重写，改用Lucene.net...
但部署上去感觉噩耗呀，CPU经常占用到50%以上。。。。。整个CPU加上其他进程经常90%~100%
尝试的将方法一：

public static List<CarSellBasicModel> GetDataSource2(CarSellSearchCondition searchCondition)
        {
            var carSellBasicModels = new List<CarSellBasicModel>();

            var fsDir = FSDirectory.Open(lucenePath);

            using (var searcher = new IndexSearcher(fsDir, true))
            {
                var query = GetQuery(searchCondition);
                if (query != null)
                    carSellBasicModels = GetCarSellList(searcher, query, searchCondition);
            }
            fsDir.Dispose();
            return carSellBasicModels;
        }

更改如下：

public static List<CarSellBasicModel> GetDataSource(CarSellSearchCondition searchCondition)
        {
            var carSellBasicModels = new List<CarSellBasicModel>();

            try
            {
                IndexSearcher searcher = null;
                var cacheKey = "___Sys_IndexSearcher";
                if (!CacheHelper.TryGetValue(cacheKey, out searcher))
                {
                    var fsDir = FSDirectory.Open(lucenePath);
                    searcher = new IndexSearcher(fsDir, true);
                    if (searcher != null)
                        CacheHelper.Set(cacheKey, searcher);
                }

                var query = GetQuery(searchCondition);
                if (query != null)
                    carSellBasicModels = GetCarSellList(searcher, query, searchCondition);
            }
            catch (Exception ex)
            {
                LogHelper.Write(ex.ToString());
                throw ex;
            }

            return carSellBasicModels;
        }

发现CPU 有下降一些，但大量异常日志被LogHelper给记录下来，基本都是：
Message:System.ArgumentOutOfRangeException: The added or subtracted value results in an un-representable DateTime.
Parameter name: months
at System.DateTime.AddMonths(Int32 months)
at System.DateTime.AddYears(Int32 value)
=================================================
暂时摸不到头脑怎么处理这个异常，另外如何优化，请高人指点一二。。。

[datahandler2]

都在睡觉？

[娃都会打酱油了]

虽然知道，但没去研究过，这里应该有人研究过的

[datahandler2]

都没其他人？