Embeddable document store on mono (Linux) doesn't work

[nickvane]

Hi,

Initializing the embeddable document store on Mono (3.2.1) raises following exception:

System.IO.FileNotFoundException : Could not load file or assembly 'System.DirectoryServices.AccountManagement, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089' or one of its dependencies.

at (wrapper managed-to-native) System.MonoType:GetPropertiesByName (System.MonoType,string,System.Reflection.BindingFlags,bool,System.Type)

at System.MonoType.GetProperties (BindingFlags bindingAttr) [0x00000] in /home/abuild/rpmbuild/BUILD/mono-3.2.1/mcs/class/corlib/System/MonoType.cs:312

at System.ComponentModel.Composition.AttributedModel.AttributedPartCreationInfo+<GetExportMembers>c__Iterator3.MoveNext () [0x00110] in /home/abuild/rpmbuild/BUILD/mono-3.2.1/mcs/class/System.ComponentModel.Composition.4.5/src/ComponentModel/System/ComponentModel/Composition/AttributedModel/AttributedPartCreationInfo.cs:358

at System.Linq.Enumerable.Any[MemberInfo] (IEnumerable`1 source) [0x00024] in /home/abuild/rpmbuild/BUILD/mono-3.2.1/mcs/class/System.Core/System.Linq/Enumerable.cs:138

at System.ComponentModel.Composition.AttributedModel.AttributedPartCreationInfo.HasExports () [0x00000] in /home/abuild/rpmbuild/BUILD/mono-3.2.1/mcs/class/System.ComponentModel.Composition.4.5/src/ComponentModel/System/ComponentModel/Composition/AttributedModel/AttributedPartCreationInfo.cs:113

at System.ComponentModel.Composition.AttributedModel.AttributedPartCreationInfo.IsPartDiscoverable () [0x0001d] in /home/abuild/rpmbuild/BUILD/mono-3.2.1/mcs/class/System.ComponentModel.Composition.4.5/src/ComponentModel/System/ComponentModel/Composition/AttributedModel/AttributedPartCreationInfo.cs:94

at System.ComponentModel.Composition.AttributedModel.AttributedModelDiscovery.CreatePartDefinitionIfDiscoverable (System.Type type, ICompositionElement origin) [0x0000a] in /home/abuild/rpmbuild/BUILD/mono-3.2.1/mcs/class/System.ComponentModel.Composition.4.5/src/ComponentModel/System/ComponentModel/Composition/AttributedModel/AttributedModelDiscovery.cs:20

at System.ComponentModel.Composition.Hosting.TypeCatalog.get_PartsInternal () [0x00052] in /home/abuild/rpmbuild/BUILD/mono-3.2.1/mcs/class/System.ComponentModel.Composition.4.5/src/ComponentModel/System/ComponentModel/Composition/Hosting/TypeCatalog.cs:276

at System.ComponentModel.Composition.Hosting.TypeCatalog.GetEnumerator () [0x00006] in /home/abuild/rpmbuild/BUILD/mono-3.2.1/mcs/class/System.ComponentModel.Composition.4.5/src/ComponentModel/System/ComponentModel/Composition/Hosting/TypeCatalog.cs:234

at System.ComponentModel.Composition.Hosting.AssemblyCatalog.GetEnumerator () [0x00000] in /home/abuild/rpmbuild/BUILD/mono-3.2.1/mcs/class/System.ComponentModel.Composition.4.5/src/ComponentModel/System/ComponentModel/Composition/Hosting/AssemblyCatalog.cs:562

at System.Linq.Enumerable+<CreateSelectManyIterator>c__Iterator27`2[System.ComponentModel.Composition.Primitives.ComposablePartCatalog,System.ComponentModel.Composition.Primitives.ComposablePartDefinition].MoveNext () [0x00059] in /home/abuild/rpmbuild/BUILD/mono-3.2.1/mcs/class/System.Core/System.Linq/Enumerable.cs:2302

at System.Linq.Enumerable.ToArray[ComposablePartDefinition] (IEnumerable`1 source) [0x0007c] in /home/abuild/rpmbuild/BUILD/mono-3.2.1/mcs/class/System.Core/System.Linq/Enumerable.cs:2899

at System.ComponentModel.Composition.Hosting.ComposablePartCatalogCollection+<Clear>c__AnonStorey26.<>m__40 () [0x00000] in /home/abuild/rpmbuild/BUILD/mono-3.2.1/mcs/class/System.ComponentModel.Composition.4.5/src/ComponentModel/System/ComponentModel/Composition/Hosting/ComposablePartCatalogCollection.cs:112

at System.Lazy`1[System.Collections.Generic.IEnumerable`1[System.ComponentModel.Composition.Primitives.ComposablePartDefinition]].InitValue () [0x00083] in /home/abuild/rpmbuild/BUILD/mono-3.2.1/mcs/class/corlib/System/Lazy.cs:131

at System.Lazy`1[System.Collections.Generic.IEnumerable`1[System.ComponentModel.Composition.Primitives.ComposablePartDefinition]].get_Value () [0x00024] in /home/abuild/rpmbuild/BUILD/mono-3.2.1/mcs/class/corlib/System/Lazy.cs:100

at System.ComponentModel.Composition.Hosting.ComposablePartCatalogCollection.RaiseChangedEvent (System.Lazy`1 addedDefinitions, System.Lazy`1 removedDefinitions) [0x0002e] in /home/abuild/rpmbuild/BUILD/mono-3.2.1/mcs/class/System.ComponentModel.Composition.4.5/src/ComponentModel/System/ComponentModel/Composition/Hosting/ComposablePartCatalogCollection.cs:313

at System.ComponentModel.Composition.Hosting.ComposablePartCatalogCollection.Clear () [0x000da] in /home/abuild/rpmbuild/BUILD/mono-3.2.1/mcs/class/System.ComponentModel.Composition.4.5/src/ComponentModel/System/ComponentModel/Composition/Hosting/ComposablePartCatalogCollection.cs:132

at Raven.Database.Config.InMemoryRavenConfiguration.FilterActiveBundles () [0x00000] in <filename unknown>:0

at Raven.Database.Config.InMemoryRavenConfiguration.PostInit () [0x00000] in <filename unknown>:0

at Raven.Database.Config.InMemoryRavenConfiguration.Initialize () [0x00000] in <filename unknown>:0

at Raven.Database.Config.RavenConfiguration.LoadConfigurationAndInitialize (IEnumerable`1 values) [0x00000] in <filename unknown>:0

at Raven.Database.Config.RavenConfiguration..ctor () [0x00000] in <filename unknown>:0

at Raven.Client.Embedded.EmbeddableDocumentStore.get_Configuration () [0x00000] in <filename unknown>:0

at Raven.Client.Embedded.EmbeddableDocumentStore.set_RunInMemory (Boolean value) [0x00000] in <filename unknown>:0

at Heuts.Api.Dal.UnitTests.BaseDalTestFixture.Setup () [0x00007] in /opt/TeamCity/buildAgent/work/50c844c5def0f779/Source/Heuts.Api.Dal.UnitTests/BaseDalTestFixture.cs:21

at (wrapper managed-to-native) System.Reflection.MonoMethod:InternalInvoke (System.Reflection.MonoMethod,object,object[],System.Exception&)

at System.Reflection.MonoMethod.Invoke (System.Object obj, BindingFlags invokeAttr, System.Reflection.Binder binder, System.Object[] parameters, System.Globalization.CultureInfo culture) [0x00054] in /home/abuild/rpmbuild/BUILD/mono-3.2.1/mcs/class/corlib/System.Reflection/MonoMethod.cs:230

The code for the store configuration:

            var documentStore = new EmbeddableDocumentStore

            {

                RunInMemory = true,

                EnlistInDistributedTransactions = false

            };

            documentStore.RegisterListener(new NoStaleQueriesAllowed());

            documentStore.JsonRequestFactory.DisableRequestCompression = true;

            documentStore.Initialize();

For what I can make of the stacktrace, a plugin is loaded via MEF and that has a reference to System.DirectoryServices.AccountManagement, which obviously doesn't work on Linux.

In the bin folder we have following (relevant) dll:

• raven.abstractions
• raven.client.embedded
• raven.client.lightweight
• raven.database
• microsoft.windowsazure.storage
• microsoft.data.edm
• microsoft.data.odata

This is ravendb v 2.5.2700, mono 3.2.1 on openSUSE 12.3, .net framework profile 4.5.

Any idea, which dll is causing this, or how we can work around this?

Kind regards, Nick

[Mircea Chirea]

The database isn't supported on Mono. Only the client library is.

[nickvane]

Yes, I know that is the official version.

We are only using the embeddable store for unit tests on the build server.

But I think it should work. The embeddable store doesn't use the essent storage engine, it's in memory configured. It has no configuration for authentication.

And from this answer from Oren: http://stackoverflow.com/questions/14194270/using-embedded-ravendb-cross-platform-net-mono-monotouch-monodroid it should work on Mono, but is not officially supported.

There also has been a lot of work from Rob Ashton in the past years to make it run on Mono.

So I'm not giving up so slowly :)

I also have a bunch of other dll's in the bin folder (servicestack, autofac, restsharp, ...). Maybe it's one of those that are loaded via MEF and requires the dependency?

[Oren Eini (Ayende Rahien)]

Nick,

Yes, it should work. But we've done no real work to make sure it actually does work, even in in memory mode only.

In this case it looks like it chokes on some AD stuff.

Oren Eini

CEO

Hibernating Rhinos

Cellular: +972-52-548-6969

Office:    +972-4-674-7811

Fax:       +972-153-4622-7811

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[Chris Marisic]

obligatory PR accepted speech