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我們正在爲客戶開發一個新系統,並且我們有一個約23600個成員的成員表。當我們試圖讓它們全部超時時。我已經使用sql profiler來獲得問題並單獨運行它,並花了大約3秒。nHibernate大查詢超時
using (ISession s = SessionFactory.OpenSession())
{
return CreateCriteria(typeof(Member)).List<Member>();
}
看起來問題是23600個對象的結果映射時間太長。 將結果限制爲示例300(.SetMaxResults(300))時,它可以正常工作。現在我不知道如果我們真的需要在最終系統中獲得所有成員,但是我知道什麼時候到了,我們想讓大多數成員在我們網站的會員供應商中生成他們的帳戶。
會員映射(功能NHibernate):
Id(x => x.ID).Default("NEWID()");
Map(x => x.LegacyID).ReadOnly();
Map(x => x.Username).Length(32);
Map(x => x.Password).Length(32);
Map(x => x.MemberID).Length(10);
Map(x => x.FirstName).Length(50);
Map(x => x.LastName).Length(50);
Map(x => x.Gender).CustomType<int>();
Map(x => x.BirthDate);
Component(c => c.Home);
Map(x => x.Email).Length(80);
Map(x => x.SendInformation).CustomType<int>();
Map(x => x.SendInvoice).CustomType<int>();
Map(x => x.Comment);
Map(x => x.PublicProfile);
Map(x => x.EntryDate);
Map(x => x.ResignationDate);
References<ProfileItem>(x => x.MemberStatus, "StatusID");
References<ProfileItem>(x => x.MemberType, "TypeID");
References<ProfileItem>(x => x.NationalAssociation);
References<ProfileItem>(x => x.Position, "PositionID");
References<ProfileItem>(x => x.SpecialSkills, "SpecialSkillsID");
References<ProfileItem>(x => x.CompanyType, "CompanyTypeID");
References<ProfileItem>(x => x.JobType, "JobTypeID");
References<ProfileItem>(x => x.GraduateCity, "GraduateCityID");
HasManyToMany<ProfileItem>(x => x.Interessts).Table("MemberInterests")
.ParentKeyColumn("UserID").ChildKeyColumn("ProfileItemID").Cascade.AllDeleteOrphan().Not.LazyLoad();
HasManyToMany<ProfileItem>(x => x.Properties).Table("MemberProperties")
.ParentKeyColumn("UserID").ChildKeyColumn("ProfileItemID").Cascade.AllDeleteOrphan().Not.LazyLoad();
Component(c => c.Company).ColumnPrefix("Work");
Component(c => c.Invoice).ColumnPrefix("Invoice");
Map(x => x.Created);
Map(x => x.CreatedBy).Length(32);
Map(x => x.LatestChange);
Map(x => x.LatestChangeBy).Length(32);
Map(x => x.ElementarySchool);
Map(x => x.University);
Map(x => x.GraduateYear);
Map(x => x.Title).Length(50);
Map(x => x.LibraryAccess);
任何人都知道這個問題,或者如何解決它什麼?
是否增加線性時間(setmaxresults 100,200,300)?國際海事組織在開放有限的集合中應該總是處理批次(分頁)。 – Firo
如果你只是想抓住這些成員導入其他地方,然後考慮使用無狀態會話 – Rippo