如何编写此SQL Server错误日志
我花了几十个小时试图弄清楚为什么我无法通过我正在编写的Windows服务连接到我的数据库并且正在2016-12-07 23:00:39.98 Logon Login succeeded for user 'thelion'. Connection made using SQL Server authentication. [CLIENT: <local machine>]
2016-12-07 23:00:39.99 Logon Error: 18456, Severity: 14, State: 38.
2016-12-07 23:00:39.99 Logon Login failed for user 'thelion'. Reason: Failed to open the explicitly specified database 'LrcPageTask'. [CLIENT: <local machine>]
2016-12-07 23:04:10.72 Logon Login succeeded for user 'thelion'. Connection made using SQL Server authentication. [CLIENT: <local machine>]
2016-12-07 23:04:10.73 Logon Error: 18456, Severity: 14, State: 38.
2016-12-07 23:04:10.73 Logon Login failed for user 'thelion'. Reason: Failed to open the explicitly specified database 'LrcPageTask'. [CLIENT: <local machine>]
2016-12-07 23:04:20.75 Logon Login succeeded for user 'thelion'. Connection made using SQL Server authentication. [CLIENT: <local machine>]
2016-12-07 23:04:20.75 Logon Error: 18456, Severity: 14, State: 38.
2016-12-07 23:04:20.75 Logon Login failed for user 'thelion'. Reason: Failed to open the explicitly specified database 'LrcPageTask'. [CLIENT: <local machine>]
下运行。错误的快照是
OnStart调用我的 protected override void OnStart(string[] args)
{
EventLog.WriteEntry(ServiceName + " started");
//PageLoadTimer.Enabled = true;
try
{
repo.Add(new PageDocument()
{
Html = "<p>Test</p>",
PageType = 0,
DateAdded = DateTime.Now,
DateProcessed = null
});
}
catch(Exception e)
{
EventLog.WriteEntry(string.Format("Problem added a page document: {0}", e.Message));
}
}
方法
Add调用public class PageDocumentRepository : PageCRUD
{
public void Add(PageDocument pd)
{
using(var context = GetPageTaskContext())
{
context.PageDocuments.Add(pd);
context.SaveChanges();
}
}
}
方法
GetPageTaskContext public abstract class PageCRUD
{
public LrcPageTaskEntities GetPageTaskContext()
{
return new LrcPageTaskEntities();
}
}
就像
LrcPageTaskEntities和public partial class LrcPageTaskEntities : DbContext
{
public LrcPageTaskEntities()
: base("name=LrcPageTaskEntities")
{
}
protected override void OnModelCreating(DbModelBuilder modelBuilder)
{
throw new UnintentionalCodeFirstException();
}
public virtual DbSet<PageDocument> PageDocuments { get; set; }
}
类似
<connectionStrings>
<!--<add name="LrcPageTaskEntities" connectionString="metadata=res://*/Models.LrcPageTask.csdl|res://*/Models.LrcPageTask.ssdl|res://*/Models.LrcPageTask.msl;provider=System.Data.SqlClient;provider connection string="data source=DESKTOP-300NQR3\SQLEXPRESS;initial catalog=LrcPageTask;integrated security=True;MultipleActiveResultSets=True;App=EntityFramework"" providerName="System.Data.EntityClient" />-->
<add name="LrcPageTaskEntities" connectionString="metadata=res://*/Models.LrcPageTask.csdl|res://*/Models.LrcPageTask.ssdl|res://*/Models.LrcPageTask.msl;provider=System.Data.SqlClient;provider connection string="data source=DESKTOP-300NQR3\SQLEXPRESS;initial catalog=LrcPageTask;integrated security=false;user id=thelion;password=trump4america;MultipleActiveResultSets=True;App=EntityFramework"" providerName="System.Data.EntityClient" />
</connectionStrings>
我的连接字符串就像
LocalSystem我不知道这是否相关，但我正在使用Visual Studio 2013 Express for Web和SQL Server Express 2016.
解决这个谜团的任何帮助？
编辑：对于一些额外的可见性，这是我正在尝试使用的登录名：
如果我尝试使用Intregated Security=True在User Id下登录并且未指定Password / 2016-12-07 23:17:27.95 Logon Login succeeded for user 'NT SERVICE\SQLTELEMETRY$SQLEXPRESS'. Connection made using Windows authentication. [CLIENT: <local machine>]
2016-12-07 23:20:37.15 Logon Login succeeded for user 'WORKGROUP\DESKTOP-300NQR3$'. Connection made using Windows authentication. [CLIENT: <local machine>]
2016-12-07 23:20:37.16 Logon Error: 18456, Severity: 14, State: 38.
2016-12-07 23:20:37.16 Logon Login failed for user 'WORKGROUP\DESKTOP-300NQR3$'. Reason: Failed to open the explicitly specified database 'LrcPageTask'. [CLIENT: <local machine>]
2016-12-07 23:20:47.20 Logon Login succeeded for user 'WORKGROUP\DESKTOP-300NQR3$'. Connection made using Windows authentication. [CLIENT: <local machine>]
2016-12-07 23:20:47.20 Logon Error: 18456, Severity: 14, State: 38.
2016-12-07 23:20:47.20 Logon Login failed for user 'WORKGROUP\DESKTOP-300NQR3$'. Reason: Failed to open the explicitly specified database 'LrcPageTask'. [CLIENT: <local machine>]
，则无效（因此我注释掉了连接字符串的原因） ）。如果我尝试这样做，我会收到一系列登录错误
while(1)2 个答案:
答案 0 :(得分：0)
州38意味着'Login valid but database unavailable (or login not permissioned)'
如果您想在错误日志中阅读有关每个州的更多信息，请通过 Aaron Bertrand 阅读此博客Troubleshooting Error 18456。
确保数据库存在且login具有对数据库具有适当权限的用户。
答案 1 :(得分：0)
以下问题排查步骤取自：Troubleshoot Connectivity/Login failures (18456 State x) with SQL Server
链接中与您相关的几个故障排除步骤：
1.Default Trace：
您可以使用以下查询来查询默认跟踪
DECLARE @trcpath nvarchar(256)
SELECT @trcpath=
CAST(value as nvarchar(256))
FROM fn_trace_getinfo(default) WHERE property = 2
---Change “default” to 1 if you want to read
information only from current trace file
SELECT * FROM fn_trace_gettable (@trcpath,default )
WHERE EventClass= 20
ORDER BY starttime DESC
输出将是下面的东西..
用户'del'登录失败。原因：无法打开登录属性中指定的数据库。 [客户：] 用户'sa'登录失败。原因：密码与提供的登录名不匹配。 [客户：]
2.Ring Buffer和Extended events：
您还可以使用ringbuffer DMV和Err.exe进行故障排除并获取失败原因..
在DMV下运行，会给你一些错误代码..
SELECT dateadd (ms, (a.[Record Time] - sys.ms_ticks), GETDATE()) as [Notification_Time], a.* FROM
(SELECT
x.value('(//Record/@id)[1]', 'bigint') AS [Record_ID],
x.value('(//Record/Error/ErrorCode)[1]', 'varchar(30)') AS [ErrorCode],
x.value('(//Record/Error/APIName)[1]', 'varchar(255)') AS [APIName],
x.value('(//Record/Error/CallingAPIName)[1]', 'varchar(255)') AS [CallingAPIName],
x.value('(//Record/Error/SPID)[1]', 'int') AS [SPID],
x.value('(//Record/@time)[1]', 'bigint') AS [Record Time]
FROM (SELECT CAST (record as xml) FROM sys.dm_os_ring_buffers
WHERE ring_buffer_type = 'RING_BUFFER_SECURITY_ERROR') AS R(x)) a
CROSS JOIN sys.dm_os_sys_info sys
ORDER BY a.[Record_ID] DESC
如果它给出了例如 0x8C2 ，则可以使用Err.exe来获取如下所示的错误消息。
Err.exe 0x8C2
给出
# for hex 0x8c2 / decimal 2242 :
NERR_PasswordExpired lmerr.h
然后您可以在命令提示符中使用NETHELP MSG并获取更多详细信息，例如..
NET HELPMSG 2242
给出
此用户的密码已过期
说明
您的密码已过期。在更改密码之前，您将无法执行任何网络任务。
ACTION
要更改密码，请按Ctrl + Alt + Del，然后选择更改密码。
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