Re: [mongodb-user] Newbie - Using C# Driver (10Gen) - Getting "A non-recoverable error occurred during a database lookup."

[Robert Stam]

I haven't seen this before, but looking at the stack trace the error is coming straight from a DNS lookup.

Can you show us your code?

On Wed, Jul 18, 2012 at 7:01 PM, Juhi Ghogh <juhi....@gmail.com> wrote:

Using MongoDB: mongodb-win32-x86_64-2.0.6  (followed standard setup given in  http://docs.mongodb.org/manual/tutorial/install-mongodb-on-windows/)

C# Driver: CSharpDriver-1.5.0.4566  (Tried the lower version as well).

Did the standard quickstart setup described in http://www.mongodb.org/display/DOCS/CSharp+Driver+Quickstart

Keep getting the following error when I run the program: 

MongoDB.Driver.MongoConnectionException was unhandled

  Message=Unable to connect to server localhost:27017: A non-recoverable error occurred during a database lookup.

  Source=MongoDB.Driver

  StackTrace:

       at MongoDB.Driver.Internal.DirectConnector.Connect(TimeSpan timeout) in C:\work\10gen\mongodb\mongo-csharp-driver\Driver\Internal\DirectConnector.cs:line 66

       at MongoDB.Driver.MongoServer.Connect(TimeSpan timeout, ConnectWaitFor waitFor) in C:\work\10gen\mongodb\mongo-csharp-driver\Driver\Core\MongoServer.cs:line 590

       at MongoDB.Driver.MongoServer.Connect(ConnectWaitFor waitFor) in C:\work\10gen\mongodb\mongo-csharp-driver\Driver\Core\MongoServer.cs:line 558

       at MongoDB.Driver.MongoServer.ChooseServerInstance(Boolean slaveOk) in C:\work\10gen\mongodb\mongo-csharp-driver\Driver\Core\MongoServer.cs:line 1296

       at MongoDB.Driver.MongoServer.AcquireConnection(MongoDatabase database, Boolean slaveOk) in C:\work\10gen\mongodb\mongo-csharp-driver\Driver\Core\MongoServer.cs:line 1188

       at MongoDB.Driver.MongoCursorEnumerator`1.AcquireConnection() in C:\work\10gen\mongodb\mongo-csharp-driver\Driver\Core\MongoCursorEnumerator.cs:line 210

       at MongoDB.Driver.MongoCursorEnumerator`1.GetFirst() in C:\work\10gen\mongodb\mongo-csharp-driver\Driver\Core\MongoCursorEnumerator.cs:line 223

       at MongoDB.Driver.MongoCursorEnumerator`1.MoveNext() in C:\work\10gen\mongodb\mongo-csharp-driver\Driver\Core\MongoCursorEnumerator.cs:line 141

       at MongoDB.Driver.MongoDatabase.GetCollectionNames() in C:\work\10gen\mongodb\mongo-csharp-driver\Driver\Core\MongoDatabase.cs:line 650

       at MongoDB.Driver.MongoDatabase.CollectionExists(String collectionName) in C:\work\10gen\mongodb\mongo-csharp-driver\Driver\Core\MongoDatabase.cs:line 302

       at TryMongoDB.Program.Main(String[] args) in t:\visual studio 2010\Projects\TryMongoDB\TryMongoDB\Program.cs:line 23

       at System.AppDomain._nExecuteAssembly(RuntimeAssembly 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, Boolean ignoreSyncCtx)

       at System.Threading.ExecutionContext.Run(ExecutionContext executionContext, ContextCallback callback, Object state)

       at System.Threading.ThreadHelper.ThreadStart()

  InnerException: System.Net.Sockets.SocketException

       Message=A non-recoverable error occurred during a database lookup

       Source=System

       ErrorCode=11003

       NativeErrorCode=11003

       StackTrace:

            at System.Net.Dns.GetAddrInfo(String name)

            at System.Net.Dns.InternalGetHostByName(String hostName, Boolean includeIPv6)

            at System.Net.Dns.GetHostAddresses(String hostNameOrAddress)

            at MongoDB.Driver.MongoServerAddress.ToIPEndPoint(AddressFamily addressFamily) in C:\work\10gen\mongodb\mongo-csharp-driver\Driver\Core\MongoServerAddress.cs:line 194

            at MongoDB.Driver.MongoServerInstance.GetIPEndPoint() in C:\work\10gen\mongodb\mongo-csharp-driver\Driver\Core\MongoServerInstance.cs:line 211

            at MongoDB.Driver.Internal.MongoConnection.Open() in C:\work\10gen\mongodb\mongo-csharp-driver\Driver\Internal\MongoConnection.cs:line 364

            at MongoDB.Driver.Internal.MongoConnection.GetNetworkStream() in C:\work\10gen\mongodb\mongo-csharp-driver\Driver\Internal\MongoConnection.cs:line 529

            at MongoDB.Driver.Internal.MongoConnection.SendMessage(MongoRequestMessage message, SafeMode safeMode) in C:\work\10gen\mongodb\mongo-csharp-driver\Driver\Internal\MongoConnection.cs:line 488

            at MongoDB.Driver.Internal.MongoConnection.RunCommand(String collectionName, QueryFlags queryFlags, CommandDocument command, Boolean throwOnError) in C:\work\10gen\mongodb\mongo-csharp-driver\Driver\Internal\MongoConnection.cs:line 392

            at MongoDB.Driver.MongoServerInstance.VerifyState(MongoConnection connection) in C:\work\10gen\mongodb\mongo-csharp-driver\Driver\Core\MongoServerInstance.cs:line 428

            at MongoDB.Driver.MongoServerInstance.Connect(Boolean slaveOk) in C:\work\10gen\mongodb\mongo-csharp-driver\Driver\Core\MongoServerInstance.cs:line 348

            at MongoDB.Driver.Internal.DirectConnector.Connect(TimeSpan timeout) in C:\work\10gen\mongodb\mongo-csharp-driver\Driver\Internal\DirectConnector.cs:line 52

       InnerException: 

What am I doing wrong?

Thanks,

Juhi

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[Juhi Ghosh]

Here it is:

using System;

using System.Collections.Generic;

using System.Linq;

using System.Text;

using MongoDB.Bson;

using MongoDB.Driver;

using MongoDB.Driver.Builders;

namespace TryMongoDB

{

    public class Entity

    {

        public ObjectId Id { get; set; }

        public string Name { get; set; }

    }

    class Program

    {

        static void Main(string[] args)

        {

            var connectionString = "mongodb://localhost/";

            var server = MongoServer.Create(connectionString);

            var database = server.GetDatabase("test");

            //Console.WriteLine( database.CollectionExists("test"));

            var collection = database.GetCollection<Entity>("entities");

            var entity = new Entity { Name = "Tom" };

            collection.Insert(entity);

            var id = entity.Id;

            var query = Query.EQ("_id", id);

            entity = collection.FindOne(query);

            entity.Name = "Dick";

            collection.Save(entity);

            var update = Update.Set("Name", "Harry");

            collection.Update(query, update);

            collection.Remove(query);

        }

    }

}

On Wednesday, July 18, 2012 7:29:57 PM UTC-4, Robert Stam wrote:

I haven't seen this before, but looking at the stack trace the error is coming straight from a DNS lookup.

Can you show us your code?

mongodb-user+unsubscribe@googlegroups.com

[craiggwilson]

What version of the driver are you using?

[Juhi Ghosh]

[craiggwilson]

So, is the database running?  Can you do this from the command line and does it connect?

c:\{wherever mongodb is installed}\mongo.exe

[Juhi Ghosh]

Yes. I am able to connect from command line. I created databases, collections etc.

[craiggwilson]

Can you try changing your connection string to use 127.0.0.1 instead of localhost?  I want to see if dns is getting in the way...  BTW: have you hacked your hosts file?

[Juhi Ghosh]

I tried 127.0.0.1. Get the following error.

MongoDB.Driver.MongoConnectionException was unhandled

  Message=Unable to connect to server 127.0.0.1:27017: An invalid argument was supplied.

  Source=MongoDB.Driver

  StackTrace:

       at MongoDB.Driver.Internal.DirectConnector.Connect(TimeSpan timeout) in C:\work\10gen\mongodb\mongo-csharp-driver\Driver\Internal\DirectConnector.cs:line 66

       at MongoDB.Driver.MongoServer.Connect(TimeSpan timeout, ConnectWaitFor waitFor) in C:\work\10gen\mongodb\mongo-csharp-driver\Driver\Core\MongoServer.cs:line 590

       at MongoDB.Driver.MongoServer.Connect(ConnectWaitFor waitFor) in C:\work\10gen\mongodb\mongo-csharp-driver\Driver\Core\MongoServer.cs:line 558

       at MongoDB.Driver.MongoServer.ChooseServerInstance(Boolean slaveOk) in C:\work\10gen\mongodb\mongo-csharp-driver\Driver\Core\MongoServer.cs:line 1296

       at MongoDB.Driver.MongoServer.AcquireConnection(MongoDatabase database, Boolean slaveOk) in C:\work\10gen\mongodb\mongo-csharp-driver\Driver\Core\MongoServer.cs:line 1188

       at MongoDB.Driver.MongoCollection.InsertBatch(Type nominalType, IEnumerable documents, MongoInsertOptions options) in C:\work\10gen\mongodb\mongo-csharp-driver\Driver\Core\MongoCollection.cs:line 1060

       at MongoDB.Driver.MongoCollection.Insert(Type nominalType, Object document, MongoInsertOptions options) in C:\work\10gen\mongodb\mongo-csharp-driver\Driver\Core\MongoCollection.cs:line 942

       at MongoDB.Driver.MongoCollection.Insert(Type nominalType, Object document) in C:\work\10gen\mongodb\mongo-csharp-driver\Driver\Core\MongoCollection.cs:line 926

       at MongoDB.Driver.MongoCollection.Insert[TNominalType](TNominalType document) in C:\work\10gen\mongodb\mongo-csharp-driver\Driver\Core\MongoCollection.cs:line 890

       at MongoDB.Driver.MongoCollection`1.Insert(TDefaultDocument document) in C:\work\10gen\mongodb\mongo-csharp-driver\Driver\Core\MongoCollection.cs:line 1738

       at TryMongoDB.Program.Main(String[] args) in t:\visual studio 2010\Projects\TryMongoDB\TryMongoDB\Program.cs:line 27

       at System.AppDomain._nExecuteAssembly(RuntimeAssembly 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, Boolean ignoreSyncCtx)

       at System.Threading.ExecutionContext.Run(ExecutionContext executionContext, ContextCallback callback, Object state)

       at System.Threading.ThreadHelper.ThreadStart()

  InnerException: System.Net.Sockets.SocketException

       Message=An invalid argument was supplied

       Source=System

       ErrorCode=10022

       NativeErrorCode=10022

       StackTrace:

            at System.Net.Sockets.Socket..ctor(AddressFamily addressFamily, SocketType socketType, ProtocolType protocolType)

            at System.Net.Sockets.TcpClient.initialize()

            at System.Net.Sockets.TcpClient..ctor(AddressFamily family)

            at MongoDB.Driver.Internal.MongoConnection.Open() in C:\work\10gen\mongodb\mongo-csharp-driver\Driver\Internal\MongoConnection.cs:line 365

            at MongoDB.Driver.Internal.MongoConnection.GetNetworkStream() in C:\work\10gen\mongodb\mongo-csharp-driver\Driver\Internal\MongoConnection.cs:line 529

            at MongoDB.Driver.Internal.MongoConnection.SendMessage(MongoRequestMessage message, SafeMode safeMode) in C:\work\10gen\mongodb\mongo-csharp-driver\Driver\Internal\MongoConnection.cs:line 488

            at MongoDB.Driver.Internal.MongoConnection.RunCommand(String collectionName, QueryFlags queryFlags, CommandDocument command, Boolean throwOnError) in C:\work\10gen\mongodb\mongo-csharp-driver\Driver\Internal\MongoConnection.cs:line 392

            at MongoDB.Driver.MongoServerInstance.VerifyState(MongoConnection connection) in C:\work\10gen\mongodb\mongo-csharp-driver\Driver\Core\MongoServerInstance.cs:line 428

            at MongoDB.Driver.MongoServerInstance.Connect(Boolean slaveOk) in C:\work\10gen\mongodb\mongo-csharp-driver\Driver\Core\MongoServerInstance.cs:line 348

            at MongoDB.Driver.Internal.DirectConnector.Connect(TimeSpan timeout) in C:\work\10gen\mongodb\mongo-csharp-driver\Driver\Internal\DirectConnector.cs:line 52

       InnerException: 

Here is my hosts file:

# Copyright (c) 1993-2009 Microsoft Corp.

#

# This is a sample HOSTS file used by Microsoft TCP/IP for Windows.

#

# This file contains the mappings of IP addresses to host names. Each

# entry should be kept on an individual line. The IP address should

# be placed in the first column followed by the corresponding host name.

# The IP address and the host name should be separated by at least one

# space.

#

# Additionally, comments (such as these) may be inserted on individual

# lines or following the machine name denoted by a '#' symbol.

#

# For example:

#

#      102.54.94.97     rhino.acme.com          # source server

#       38.25.63.10     x.acme.com              # x client host

# localhost name resolution is handled within DNS itself.

# 127.0.0.1       localhost

# ::1             localhost

[craiggwilson]

Ok, so according to your original error, this is what msdn says about the error from here:  http://msdn.microsoft.com/en-us/library/windows/desktop/ms740668(v=vs.85).aspx.  Note that the referenced "database" is NOT mongodb, but rather the native database used for network related stuff.

WSANO_RECOVERY 11003

This is a nonrecoverable error. This indicates that some sort of nonrecoverable error occurred during a database lookup. This may be because the database files (for example, BSD-compatible HOSTS, SERVICES, or PROTOCOLS files) could not be found, or a DNS request was returned by the server with a severe error.

Seems like something odd is going on with your computer.  Are you able to ping localhost?

[Juhi Ghosh]

Yes Ping works. The machines's IP also, still no luck. I tried installing on another machine, same issue. Looks like some firewall/network setting. 

[Juhi Ghosh]

Figured it out. We were running this project out of a network location. When we moved the project to C drive worked fine.

Thanks for the help!!