I't trying to port an existing web application to run as an Azure Web Role. This application uses Oracle DB, which I've installed on an Azure VM using one of the new Images available there.
The problem arises when I try to connect from the web application to the database. I'm able to connect to the database from my developer PC (from Visual Studio using ODBC) and I'm able to telnet to the port, so no firewall issues.
I'm using this technique: http://www.splinter.com.au/using-the-new-odpnet-to-access-oracle-from-c/ which has been described several places online, including here on StackOverflow. The only difference is that I use Oracle 12 instead of 11, and use the appropriate 64 bit libraries.
The error I get, is not very descriptive:
[OracleException (0x80004005)]
Oracle.DataAccess.Client.OracleException.HandleErrorHelper(Int32 errCode, OracleConnection conn, IntPtr opsErrCtx, OpoSqlValCtx* pOpoSqlValCtx, Object src, String procedure, Boolean bCheck, Int32 isRecoverable) +1199
Oracle.DataAccess.Client.OracleException.HandleError(Int32 errCode, OracleConnection conn, IntPtr opsErrCtx, Object src) +53
Oracle.DataAccess.Client.OracleConnection.Open() +4555
NHibernate.Connection.DriverConnectionProvider.GetConnection() +378
NHibernate.Tool.hbm2ddl.SuppliedConnectionProviderConnectionHelper.Prepare() +92
NHibernate.Tool.hbm2ddl.SchemaMetadataUpdater.GetReservedWords(Dialect dialect, IConnectionHelper connectionHelper) +154
NHibernate.Tool.hbm2ddl.SchemaMetadataUpdater.Update(ISessionFactory sessionFactory) +312
NHibernate.Impl.SessionFactoryImpl..ctor(Configuration cfg, IMapping mapping, Settings settings, EventListeners listeners) +1934
NHibernate.Cfg.Configuration.BuildSessionFactory() +292
FluentNHibernate.Cfg.FluentConfiguration.BuildSessionFactory() +54
[FluentConfigurationException: An invalid or incomplete configuration was used while creating a SessionFactory. Check PotentialReasons collection, and InnerException for more detail.
]
FluentNHibernate.Cfg.FluentConfiguration.BuildSessionFactory() +111
MAP.NHibernateHelper.CreateSessionFactory() in C:\ProjectSVN\FluentWims\DataAccessLayer\DataMapping\NHibernateHelper.vb:102
MAP.NHibernateHelper.get_SessionFactory() in C:\ProjectSVN\FluentWims\DataAccessLayer\DataMapping\NHibernateHelper.vb:16
(Some lines deleted at the end as it contains some details I don't want to share publicly and I'm pretty sure they are irrelevant)
I've decompiled the managed code (OracleDataAccess.dll) and traced the problem to a call to this wrapped native call:
<DllImport("OraOps12.dll", EntryPoint:="OpsConOpen", CallingConvention:=CallingConvention.Cdecl, CharSet:=CharSet.Unicode)> _
Public Shared Function Open(ByRef opsConCtx As IntPtr, ByRef opsErrCtx As IntPtr, ByRef pOpoConValCtx As OpoConValCtx, ByRef pOpoConRefCtx As OpoConRefCtx) As Integer
End Function
This returns -1, which isn't recognized as a known error code, and thus creates this exception which means next to nothing (at least not to me, even after googling like crazy ;)).
I have checked that if I remove OraOps12.dll, I get a different error message, and I've seen in ProcMon that the file is in fact found where I put it. I can find next to nothing about OraOps online, and what it means that this method returns -1.
Does anyone know what might be going on here, and what might be wrong?
UPDATE
I've tried to look with a network monitor, at what is being sent to the oracle database, and I can't find any traffic - so OraOps seems to be called, but it doesn't get as far as to try to communicate with the database server.
The connection string I'm using, is copy/paste from the working connection in Visual Studio, so I assume it is correct. Even if it wasn't, I would expect a more descriptive error message back...
Related
I has been created a program that works with MS Access 2010 (.accdb)extension. The program is fully works fine.
The issue is:
When the program is installed into another PC that has no MS Office installed, then the Exception that defined in the program returns connection error. Yes of course because the program can't read the (.accdb) file without office installed.
Need solution:
Is there any way to import this (.accdb) in order to read and modify it. Or is there any other simple solution that works when the application is installed to any non office installed PC?
The Demo of My program Code is:
Connection String:
Imports SpeechLib
Imports System.IO
Module MdlIPray5ve
Public con As OleDb.OleDbConnection
Public cmd As OleDb.OleDbCommand
Public sql As String
Public speaker As New SpVoice
Public Function connection() As String
Try
connection = "Provider=Microsoft.ACE.OLEDB.12.0; Data Source=azan_time.accdb; Persist Security Info=False;"
Catch ex As Exception
MessageBox.Show("Could not connect to the Database. Check your Connection!")
End Try
End Function
Something that Accesses the Database:
Private Sub UpdateAlarmTone()
Try
Dim cmdText = "UPDATE alarm_tone SET subhi= #subhi1, zuhur =#zuhur1, aser = #aser1, megrib = #megrib1, isha = #isha1"
Using con As New OleDb.OleDbConnection(connection)
Using cmd As New OleDb.OleDbCommand(cmdText, con)
con.Open()
cmd.Parameters.AddWithValue("#subhi1", txtSubhi.Text)
cmd.Parameters.AddWithValue("#zuhur1", txtZuhur.Text)
cmd.Parameters.AddWithValue("#aser1", txtAser.Text)
cmd.Parameters.AddWithValue("#megrib1", txtMegrib.Text)
cmd.Parameters.AddWithValue("#isha1", txtIsha.Text)
Dim infor As String
infor = cmd.ExecuteNonQuery
If (infor > 0) Then
MsgBox("Alarm Tone record updated successfuly")
Else
MsgBox("Update failed!")
End If
End Using
End Using
Catch ex As Exception
MessageBox.Show("There is a problem with your connection!")
End Try
End Sub
create the Access database via ODBC, that comes with Windows itself.
You can also use other databases (eg., MySQL, Firebird, SQLite, and others) that are available that wouldn't necessarily cost your client anything if they installed it (or, for some, if you included it in your installation for them).
Using the MS Office COM automation requires that the MS Office product be installed on the machine running the automation.
There are third-party code libraries that replace that functionality with their own code, meaning your app could create it's own Access-compatible files. However, your users would still need Access to use them
I'm struggling to the maximum trying to get DB deployment done from a remote client.
Let me fire you some details.
Problem
System.Runtime.Serialization.SerializationException: Member 'ClassName' was not found.
Occurs during a publish to the remote IIS server from Visual studio 2012.
Server
Windows Server 2008 R2
IIS 7.5
SQL SERVER 2012 Express
What goes wrong
I select publish on my web application (within visual studio 2012 / windows 8 pro)
I publish my web application no problem to my remote web server (confirmed web page deployed and is accessible from www).
I open publish again, this time selecting DB publish.
Exception occurs on the server, message is propagated to client.
=> application publishing is fine, just not DB.
What i've tried
Every guide, faq, step by step guide I can find online.
I've uninstalled and re-installed all the deployment packages for IIS (DAC framework, Web Deployment 3, Web deployment tools 2.1 - server)
Re install all client side DAC libraries on client.
Uninstall, re-install, rebooting, punching my keyboard and monitor (not my main DELL ultrasharp 24..just my 21" acer thing).
Nothing is helping (except the keyboard punching..which made me feel slightly relieved), i've just spent 10 hours, no joy. Service Delegation entries are setup for the correct DAC based provider.
Seems to be some fundamental problem, based on my understanding, an assembly is being reflected on, and is expecting to have a member called 'ClassName'..but it doesn't exist..i.e....the assembly must not be in sync with the consumer.
But there are no clear guidelines on line to confirm/ diagnose this..and nothing in the exception log except for this error (see below).
I've found a similar post on here with the same exception message, except the guys suggestions didn't help for me at all - tried them.
Please help, i've turned to chocolate biscuits and plain hambugers to drown out the pain...i'll need to drown myself again tomorrow at the gym (this time in sweat).
Thank you,
Karl
A tracing deployment agent exception occurred that was propagated to the client. Request ID '7dd5089d-4e51-4f27-aecc-c8044754a01e'. Request Timestamp: '10/11/2012 8:55:08 PM'. Error Details:
System.Reflection.TargetInvocationException: Exception has been thrown by the target of an invocation. ---> System.Runtime.Serialization.SerializationException: Member 'ClassName' was not found.
at System.Runtime.Serialization.SerializationInfo.GetElement(String name, Type& foundType)
at System.Runtime.Serialization.SerializationInfo.GetString(String name)
at System.Exception..ctor(SerializationInfo info, StreamingContext context)
--- End of inner exception stack trace ---
at System.RuntimeMethodHandle._SerializationInvoke(Object target, SignatureStruct& declaringTypeSig, SerializationInfo info, StreamingContext context)
at System.Runtime.Serialization.ObjectManager.CompleteISerializableObject(Object obj, SerializationInfo info, StreamingContext context)
at System.Runtime.Serialization.ObjectManager.FixupSpecialObject(ObjectHolder holder)
at System.Runtime.Serialization.ObjectManager.DoFixups()
at System.Runtime.Serialization.Formatters.Binary.ObjectReader.Deserialize(HeaderHandler handler, __BinaryParser serParser, Boolean fCheck, Boolean isCrossAppDomain, IMethodCallMessage methodCallMessage)
at System.Runtime.Serialization.Formatters.Binary.BinaryFormatter.Deserialize(Stream serializationStream, HeaderHandler handler, Boolean fCheck, Boolean isCrossAppDomain, IMethodCallMessage methodCallMessage)
at System.Runtime.Serialization.Formatters.Binary.BinaryFormatter.Deserialize(Stream serializationStream, HeaderHandler handler, Boolean fCheck, IMethodCallMessage methodCallMessage)
at Microsoft.Web.Deployment.Base64EncodingHelper.DeserializeHelper(BinaryFormatter formatter, Byte[] buffer)
at Microsoft.Web.Deployment.Base64EncodingHelper.Deserialize(String str, Exception& handledException)
at Microsoft.Web.Deployment.SerializationHelper.Deserialize(String str)
at Microsoft.Web.Deployment.SqlDacPacProvider.ProcessExeOutput()
at Microsoft.Web.Deployment.SqlDacPacProvider.RunExecutableAsync(String exeName, String arguments, Int32 waitInterval, Int32 retryAttempts)
at Microsoft.Web.Deployment.SqlDacPacProvider.Add(DeploymentObject source, Boolean whatIf)
at Microsoft.Web.Deployment.DeploymentObject.Add(DeploymentObject source, DeploymentSyncContext syncContext)
at Microsoft.Web.Deployment.DeploymentSyncContext.HandleAdd(DeploymentObject destObject, DeploymentObject sourceObject)
at Microsoft.Web.Deployment.DeploymentSyncContext.SyncChildren(DeploymentObject dest, DeploymentObject source)
at Microsoft.Web.Deployment.DeploymentSyncContext.SyncChildrenOrder(DeploymentObject dest, DeploymentObject source)
at Microsoft.Web.Deployment.DeploymentSyncContext.ProcessSync(DeploymentObject destinationObject, DeploymentObject sourceObject)
at Microsoft.Web.Deployment.DeploymentObject.SyncToInternal(DeploymentObject destObject, DeploymentSyncOptions syncOptions, PayloadTable payloadTable, ContentRootTable contentRootTable, Nullable1 syncPassId)
at Microsoft.Web.Deployment.DeploymentAgent.HandleSync(DeploymentAgentAsyncData asyncData, Nullable1 passId)
at Microsoft.Web.Deployment.DeploymentAgent.HandleRequestWorker(DeploymentAgentAsyncData asyncData)
at Microsoft.Web.Deployment.DeploymentAgent.HandleRequest(DeploymentAgentAsyncData asyncData)
I've set up a db4o server and client. My client calls are not working.
What's puzzling to me is that the db4o examples show how the client can close the server, but not how to get and save data. See: http://community.versant.com/Documentation/Reference/db4o-7.12/java/reference/Content/client-server/networked/simple_db4o_server.htm
If I start the db4o server, and run netstat, I can see that the port is open. And on the client, I can do things like this:
Debug.WriteLine(db.Ext().IsClosed().ToString());
And that returns False, which is good.
But when I try to get or save data, it doesn't work. When saving data, it appears to work, but I don't see the data in the DB. When trying to retrieve the object, I get this error:
Db4objects.Db4o.Ext.Db4oException: Exception of type 'Db4objects.Db4o.Ext.Db4oException' was thrown. ---> System.ArgumentException: Field '_delegateType' defined on type 'Db4objects.Db4o.Internal.Query.DelegateEnvelope' is not a field on the target object which is of type 'Db4objects.Db4o.Reflect.Generic.GenericObject'.
Here are the client calls to save, then get:
Server server = new Server() { Name = "AppServerFoo" };
IObjectContainer db = GetDatabase();
db.Store(server);
db.Close();
Here's the only line in the GetDatabase() method:
return Db4oClientServer.OpenClient(Db4oClientServer.NewClientConfiguration(), "DellXps", 8484, "user", "password");
And here's the call to get from the DB:
IObjectContainer db = GetDatabase();
Server testServer = db.Query<Server>(server => server.Name == "AppServerFoo").FirstOrDefault();
db.Close();
What am I missing?
Well a server without a reference the persisted classes is a 'risky' thing. A lot of functionally doesn't work and the error which occur are cryptic. I highly recommend to always reference the assembly with the persisted classes on the server.
Another tip: Use LINQ instead of native queries. It works better and has less problems.
A ha! I got it. It took some googling, but the problem was that the server didn't have a reference to the entities. As soon as my server project referenced my client project, it worked. So, it looks like I just need to move my entities to a common project that both the client and server can reference.
Thanks to this link:
http://www.gamlor.info/wordpress/2009/11/db4o-client-server-and-concurrency/
This link looks like a gateway to having the server work without referencing the entities:
http://community.versant.com/Documentation/Reference/db4o-7.12/net2/reference/html/reference/client-server/server_without_persistent_classes_deployed.html
I've been struggling with getting an application endpoint working on UCMA 3.0. I am trying to run an application on a server separate from the Lync server which uses a registered ApplicationEndpoint to monitor presence and act as a bot which can send other users messages. I used to have my code working with a UserEndpoint (which was fine for monitoring presence), but did not have the capabilities to send IMs to other Lync users.
After searching the web, I'm finally at the point where I'm getting this error when running my code:
System.ArgumentException was unhandled
Message=An ApplicationEndpoint can be registered only if proxy and Multual Tls have been specified.
Source=Microsoft.Rtc.Collaboration
StackTrace:
at Microsoft.Rtc.Collaboration.ApplicationEndpoint..ctor(CollaborationPlatform platform, ApplicationEndpointSettings settings)
at Waldo.endpointHelper.CreateApplicationEndpoint(ApplicationEndpointSettings applicationEndpointSettings) in C:\Users\l1m5\Desktop\waldoproject\trunk\WaldoSoln\waldoGrabPresence\endpointHelper.cs:line 117
at Waldo.endpointHelper.CreateEstablishedApplicationEndpoint(String endpointFriendlyName) in C:\Users\l1m5\Desktop\waldoproject\trunk\WaldoSoln\waldoGrabPresence\endpointHelper.cs:line 228
at Waldo.waldoGrabPresence.Run() in C:\Users\l1m5\Desktop\waldoproject\trunk\WaldoSoln\waldoGrabPresence\waldoGrabPresence.cs:line 60
at Waldo.waldoGrabPresence.Main(String[] args) in C:\Users\l1m5\Desktop\waldoproject\trunk\WaldoSoln\waldoGrabPresence\waldoGrabPresence.cs:line 42
at System.AppDomain._nExecuteAssembly(Assembly assembly, String[] args)
at System.AppDomain.ExecuteAssembly(String assemblyFile, Evidence assemblySecurity, String[] args)
at Microsoft.VisualStudio.HostingProcess.HostProc.RunUsersAssembly()
at System.Threading.ThreadHelper.ThreadStart_Context(Object state)
at System.Threading.ExecutionContext.Run(ExecutionContext executionContext, ContextCallback callback, Object state)
at System.Threading.ThreadHelper.ThreadStart()
InnerException:
After some searching, I followed the instructions here: http://blogs.claritycon.com/blogs/michael_greenlee/archive/2009/03/21/installing-a-certificate-for-ucma-v2-0-applications.aspx to import a certificate onto the server that I'm trying to run the application on, but to no avail.
So at this point, I think that there must be something wrong with how I'm setting up the ApplicationEndpointSettings, CollaberationPlatform or ApplicationEndpoint objects. Here's how I'm doing it:
ApplicationEndpointSettings settings = new ApplicationEndpointSettings(_ownerURIPrompt, _serverFQDNPrompt, _trustedPortPrompt);
ServerPlatformSettings settings = new ServerPlatformSettings(null, _serverFQDNPrompt, _trustedPortPrompt, _trustedApplicationGRUU);
_collabPlatform = new CollaborationPlatform(settings);
_applicationEndpoint = new ApplicationEndpoint(_collabPlatform, applicationEndpointSettings);
Does anyone see any problems with what I'm doing? Or, better yet, does anyone know of a blog that walks you through establishing an application endpoint in the situation I'm in? I work really well with tutorials or samples, but have not found one that seems to accomplish what I'm trying to do.
Thanks for the help!
The procedure to get a certificate in Lync is very different than OCS2007, and much easier. The link you posted is for UCMA2, and OCS, I believe. In Lync, it's basically two powershell statements.
1) Request-CSCertificate -Action new -Type default -CA -Verbose
2) Save the results of that statement, take the thumbprint, use it as the parameter to:
Set-CsCertificate -Type Default -Thumbprint XXXXXXXXXXXXXXXXXXXX
Installing UCMA 3.0 and Creating a Lync Server 2010 Trusted Application Pool
use powershell to provision a trusted application endpoint. The command to explore is new-trustedapplicationendpoint. The error you are getting is due to no trusted endpoint being registered, even though you may have your trusted application registered, it needs an endpoint to work and that endpoint must be first registered before you provision the platform.
The SDK CHM file should be your friend here! This section is about app activation and provisioning
Pass the certificate to the ServerPlatformSettings object, then it works. I had the similar problem, and the problem is resolved after using the ServerPlatformSettings(string applicationUserAgent, string localhost, int port, string gruu, string certificateIssuerName, byte[] certificateSerialNumber) constructor for the ServerPlatformSettings.
I have read all other posts and have been googling this for the last 2 hours! I started WCF Data Services about 3 hours ago btw.
My service is on an asp.net4 app, the ado entity model exposes an sql server db.
Here is FasDataService.svc.cs
public class FasDataService : DataService<FASStoreEntities>
{
public static void InitializeService(DataServiceConfiguration config)
{
config.DataServiceBehavior.MaxProtocolVersion = DataServiceProtocolVersion.V2;
config.UseVerboseErrors = true;
config.SetServiceOperationAccessRule("*", ServiceOperationRights.All);
config.SetEntitySetAccessRule("*", EntitySetRights.All);
}
}
I have then a winforms 4 app with the following code in the Main()
FASStoreEntities fas = new FASStoreEntities(u);
var a = from al in fas.Customers
where al.Name == "Alinio"
select al;
MessageBox.Show(a.First().Phone1);
When I run the web app and point to http://localhost:15995/FasDataService.svc/Customers(1) it loads up the one and only customer in there
My error is WebException was unhandled:
The operation has timed out. The inner
exception is null.
Also, everything is local but when I do this (in chrome) it takes a good load of time! Its scary to think of how it would perform in production?
For some reason, today I installed fiddler and tried it and it works! I also, queried the service with linqpad and it worked no prob!
Although throughout today I played with wcf data services and had tons of problems accessing data because of all kinds of errors, data connection was still open, some error insert excess data in a field etc etc.
Fiddler was very helpful at diagnosing what the error was, its very difficult to figure out what really went wrong so fiddler is a must have.