I'm experiencing an issue which seems fairly common, yet I googled for similar questions but none seems up to date, so I hope someone can give a suggestion here. I cannot let ELMAH work in my mvc4 app once deployed onto an Azure web site, while it works fine when working locally on my development environment.
Here are the details:
1) I created an MVC4 web internet app, and added the Elmah.MVC NuGet package to it (the Elmah version as shown in the report page is 1.2.14706.955).
2) I completed the modifications made to my web.config by (1) by adding:
in appSettings:
<add key="elmah.mvc.disableHandler" value="false" /> <add key="elmah.mvc.disableHandleErrorFilter" value="false" /> <add key="elmah.mvc.requiresAuthentication" value="true" /> <add key="elmah.mvc.allowedRoles" value="administrator" /> <add key="elmah.mvc.route" value="elmah" />
in elmah:
<security allowRemoteAccess="true" /> <errorLog type="Elmah.SqlErrorLog, Elmah" connectionStringName="DefaultConnection" />
My DefaultConnection string is a "standard" SqlServer string like:
<add name="DefaultConnection" connectionString="Server=tcp:servername.database.windows.net,1433;Database=dbname;User ID=username;Password=password;Trusted_Connection=False;Encrypt=True;Connection Timeout=30;" providerName="System.Data.SqlClient" />
Now, when working locally unhandled exceptions get logged into the database. When deployed on Azure, exceptions are raised, but nothing is logged into the (Azure SQL) database.
I can successfully follow the route mywebsite/elmah both locally and remotely: only, when I try the remote route the elmah generated view shows no records, as nothing is stored in the database.
The same remote database is used for user accounts and all other purposes, so I can be sure the web app can talk to the database. Simply, no exception ever gets logged once deployed on Azure.
I created ELMAH tables and stored procs with the following SQL:
CREATE TABLE [dbo].[ELMAH_Error]
(
[ErrorId] UNIQUEIDENTIFIER NOT NULL,
[Application] NVARCHAR(60) COLLATE SQL_Latin1_General_CP1_CI_AS NOT NULL,
[Host] NVARCHAR(50) COLLATE SQL_Latin1_General_CP1_CI_AS NOT NULL,
[Type] NVARCHAR(100) COLLATE SQL_Latin1_General_CP1_CI_AS NOT NULL,
[Source] NVARCHAR(60) COLLATE SQL_Latin1_General_CP1_CI_AS NOT NULL,
[Message] NVARCHAR(500) COLLATE SQL_Latin1_General_CP1_CI_AS NOT NULL,
[User] NVARCHAR(50) COLLATE SQL_Latin1_General_CP1_CI_AS NOT NULL,
[StatusCode] INT NOT NULL,
[TimeUtc] DATETIME NOT NULL,
[Sequence] INT IDENTITY (1, 1) NOT NULL,
[AllXml] NTEXT COLLATE SQL_Latin1_General_CP1_CI_AS NOT NULL
)
GO
ALTER TABLE [dbo].[ELMAH_Error] WITH NOCHECK ADD
CONSTRAINT [PK_ELMAH_Error] PRIMARY KEY NONCLUSTERED ([ErrorId])
GO
ALTER TABLE [dbo].[ELMAH_Error] ADD
CONSTRAINT [DF_ELMAH_Error_ErrorId] DEFAULT (NEWID()) FOR [ErrorId]
GO
CREATE NONCLUSTERED INDEX [IX_ELMAH_Error_App_Time_Seq] ON [dbo].[ELMAH_Error]
(
[Application] ASC,
[TimeUtc] DESC,
[Sequence] DESC
)
GO
/* ------------------------------------------------------------------------
STORED PROCEDURES
------------------------------------------------------------------------ */
SET QUOTED_IDENTIFIER ON
GO
SET ANSI_NULLS ON
GO
CREATE PROCEDURE [dbo].[ELMAH_GetErrorXml]
(
@Application NVARCHAR(60),
@ErrorId UNIQUEIDENTIFIER
)
AS
SET NOCOUNT ON
SELECT
[AllXml]
FROM
[ELMAH_Error]
WHERE
[ErrorId] = @ErrorId
AND
[Application] = @Application
GO
SET QUOTED_IDENTIFIER OFF
GO
SET ANSI_NULLS ON
GO
SET QUOTED_IDENTIFIER ON
GO
SET ANSI_NULLS ON
GO
CREATE PROCEDURE [dbo].[ELMAH_GetErrorsXml]
(
@Application NVARCHAR(60),
@PageIndex INT = 0,
@PageSize INT = 15,
@TotalCount INT OUTPUT
)
AS
SET NOCOUNT ON
DECLARE @FirstTimeUTC DATETIME
DECLARE @FirstSequence INT
DECLARE @StartRow INT
DECLARE @StartRowIndex INT
SELECT
@TotalCount = COUNT(1)
FROM
[ELMAH_Error]
WHERE
[Application] = @Application
-- Get the ID of the first error for the requested page
SET @StartRowIndex = @PageIndex * @PageSize + 1
IF @StartRowIndex <= @TotalCount
BEGIN
SET ROWCOUNT @StartRowIndex
SELECT
@FirstTimeUTC = [TimeUtc],
@FirstSequence = [Sequence]
FROM
[ELMAH_Error]
WHERE
[Application] = @Application
ORDER BY
[TimeUtc] DESC,
[Sequence] DESC
END
ELSE
BEGIN
SET @PageSize = 0
END
-- Now set the row count to the requested page size and get
-- all records below it for the pertaining application.
SET ROWCOUNT @PageSize
SELECT
errorId = [ErrorId],
application = [Application],
host = [Host],
type = [Type],
source = [Source],
message = [Message],
[user] = [User],
statusCode = [StatusCode],
time = CONVERT(VARCHAR(50), [TimeUtc], 126) + 'Z'
FROM
[ELMAH_Error] error
WHERE
[Application] = @Application
AND
[TimeUtc] <= @FirstTimeUTC
AND
[Sequence] <= @FirstSequence
ORDER BY
[TimeUtc] DESC,
[Sequence] DESC
FOR
XML AUTO
GO
SET QUOTED_IDENTIFIER OFF
GO
SET ANSI_NULLS ON
GO
SET QUOTED_IDENTIFIER ON
GO
SET ANSI_NULLS ON
GO
CREATE PROCEDURE [dbo].[ELMAH_LogError]
(
@ErrorId UNIQUEIDENTIFIER,
@Application NVARCHAR(60),
@Host NVARCHAR(30),
@Type NVARCHAR(100),
@Source NVARCHAR(60),
@Message NVARCHAR(500),
@User NVARCHAR(50),
@AllXml NTEXT,
@StatusCode INT,
@TimeUtc DATETIME
)
AS
SET NOCOUNT ON
INSERT
INTO
[ELMAH_Error]
(
[ErrorId],
[Application],
[Host],
[Type],
[Source],
[Message],
[User],
[AllXml],
[StatusCode],
[TimeUtc]
)
VALUES
(
@ErrorId,
@Application,
@Host,
@Type,
@Source,
@Message,
@User,
@AllXml,
@StatusCode,
@TimeUtc
)
GO
SET QUOTED_IDENTIFIER OFF
GO
SET ANSI_NULLS ON
GO
