In RavenDB 3.5, the client implementation of distributed transactions contains a bug that could cause an endpoint to lose data under rare conditions. If RavenDB is configured to enlist in distributed transactions with RavenDB 3.5, read DTC not supported for RavenDB Persistence.
Using RavenDB version 5 and higher in a cluster configuration with multiple nodes is only supported from version 7 or higher of the NServiceBus.RavenDB persistence package. For more information, read cluster configuration with multiple nodes.
Example code and scripts to facilitate deployment and operational actions against RavenDB.
These examples use the RavenDB.Client NuGet.
Grant a user access to a database
The user access helper method
The following code shows an example of how to grant a user access to a RavenDB database.
This is helpful to ensure the user account, an endpoint is running under, has appropriate access to RavenDB.
public static void AddUserToDatabase(IDocumentStore documentStore, string username)
{
var systemCommands = documentStore
.DatabaseCommands
.ForSystemDatabase();
var windowsAuthDocument = GetWindowsAuthDocument(systemCommands);
AddOrUpdateAuthUser(windowsAuthDocument, username, "<system>");
var ravenJObject = RavenJObject.FromObject(windowsAuthDocument);
systemCommands.Put("Raven/Authorization/WindowsSettings", null, ravenJObject, new RavenJObject());
}
static WindowsAuthDocument GetWindowsAuthDocument(IDatabaseCommands systemCommands)
{
var existing = systemCommands.Get("Raven/Authorization/WindowsSettings");
if (existing == null)
{
return new WindowsAuthDocument();
}
return existing
.DataAsJson
.JsonDeserialization<WindowsAuthDocument>();
}
static void AddOrUpdateAuthUser(WindowsAuthDocument windowsAuthDocument, string identity, string tenantId)
{
var windowsAuthForUser = windowsAuthDocument
.RequiredUsers
.FirstOrDefault(x => x.Name == identity);
if (windowsAuthForUser == null)
{
windowsAuthForUser = new WindowsAuthData
{
Name = identity
};
windowsAuthDocument.RequiredUsers.Add(windowsAuthForUser);
}
windowsAuthForUser.Enabled = true;
AddOrUpdateDataAccess(windowsAuthForUser, tenantId);
}
static void AddOrUpdateDataAccess(WindowsAuthData windowsAuthForUser, string tenantId)
{
var dataAccess = windowsAuthForUser
.Databases
.FirstOrDefault(x => x.TenantId == tenantId);
if (dataAccess == null)
{
dataAccess = new ResourceAccess
{
TenantId = tenantId
};
windowsAuthForUser.Databases.Add(dataAccess);
}
dataAccess.ReadOnly = false;
dataAccess.Admin = true;
}
class WindowsAuthDocument
{
public List<WindowsAuthData> RequiredGroups = new List<WindowsAuthData>();
public List<WindowsAuthData> RequiredUsers = new List<WindowsAuthData>();
}
class WindowsAuthData
{
public string Name;
public bool Enabled;
public List<ResourceAccess> Databases = new List<ResourceAccess>();
}
Using the user access helper method
using (var documentStore = new DocumentStore
{
Url = "http://locationOfRavenDbInstance:8083/"
})
{
documentStore.Initialize();
AddUserToDatabase(documentStore, "UserNameToAdd");
}