I have created a bucket using couchbase web console with credentials
now when i am trying to open that bucket using couchbasenetclient i am getting below error
c#:
var cluster = new Cluster();
var bucket = cluster.OpenBucket();
if (bucket != null)
{
Console.WriteLine(“success”);
}
at Couchbase.Core.ClusterController.CreateBucket(String bucketName, String password) in c:\Users\jmorris\repos\couchbase-net-client\Src\Couchbase\Core\ClusterController.cs:line 241
at Couchbase.Core.ClusterController.CreateBucket(String bucketName) in c:\Users\jmorris\repos\couchbase-net-client\Src\Couchbase\Core\ClusterController.cs:line 155
at Couchbase.Cluster.OpenBucket() in c:\Users\jmorris\repos\couchbase-net-client\Src\Couchbase\Cluster.cs:line 83
at HelloCouchbase.Program.Main(String[] args) in C:\Users\pavan.COELAB\documents\visual studio 2015\Projects\HelloCouchbase\HelloCouchbase\Program.cs:line 108
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.RunInternal(ExecutionContext executionContext, ContextCallback callback, Object state, Boolean preserveSyncCtx)
at System.Threading.ExecutionContext.Run(ExecutionContext executionContext, ContextCallback callback, Object state, Boolean preserveSyncCtx)
at System.Threading.ExecutionContext.Run(ExecutionContext executionContext, ContextCallback callback, Object state)
at System.Threading.ThreadHelper.ThreadStart()
Looking at the code, it appears that you don’t have any configuration for the cluster. If you don’t provide configuration, it will always try to connect to localhost and won’t have a password.
You should try setting you configuration in XML, then calling ClusterHelper.Initialize(sectionName). Then get the bucket using ClusterHelper.GetBucket(bucketName). I think that will work better for you.
private static void Main(string[] args)
{
ClusterHelper.Initialize(“couchbase/couchbase”);
using (var bucket = ClusterHelper.GetBucket(“secondbucket”))
{
var result = bucket.Upsert(“foof”, “bar”);
}
}
error:
at Couchbase.Core.ClusterController.CreateBucket(String bucketName, String password) in c:\Users\jmorris\repos\couchbase-net-client\Src\Couchbase\Core\ClusterController.cs:line 241
at Couchbase.ClusterHelper.b__0(String name) in c:\Users\jmorris\repos\couchbase-net-client\Src\Couchbase\ClusterHelper.cs:line 100
at System.Collections.Concurrent.ConcurrentDictionary2.GetOrAdd(TKey key, Func2 valueFactory)
at Couchbase.ClusterHelper.GetBucket(String bucketName) in c:\Users\jmorris\repos\couchbase-net-client\Src\Couchbase\ClusterHelper.cs:line 92
at HelloCouchbase.Program.Main(String[] args) in C:\Users\pavan.COELAB\documents\visual studio 2015\Projects\HelloCouchbase\HelloCouchbase\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.RunInternal(ExecutionContext executionContext, ContextCallback callback, Object state, Boolean preserveSyncCtx)
at System.Threading.ExecutionContext.Run(ExecutionContext executionContext, ContextCallback callback, Object state, Boolean preserveSyncCtx)
at System.Threading.ExecutionContext.Run(ExecutionContext executionContext, ContextCallback callback, Object state)
at System.Threading.ThreadHelper.ThreadStart()
I see part of your problem here. When using ClusterHelper, you should not dispose the bucket. It’s a singleton instance that ClusterHelper will keep track of. Just use GetBucket whenever you need it, and never dispose.
Per @btburnett3’s suggestion, you should remove the using statements and just ClusterHelper.GetBucket so that the bucket instances are cached and not disposed. They are expensive objects to create and should be long-lived through the life of the application.
If your cluster is built using IP addresses or domain names, those must also be resolvable from your location. For example, if the cluster uses private IPs, i.e. 192.168.0.50, then requests to 192.168.0.50 from your client must reach the server. You can’t use NAT forwarding from a public IP.
The minimum configuration required to connect to the cluster is an URI with the IP or hostname and then the bucket name and optional password. For example:
var config = new ClientConfiguration
{
Servers = new List<Uri>
{
new Uri("http://10.142.150.101:8091/")
}
};
var cluster = new Cluster(config);
var bucket = cluster.OpenBucket("bucketName", "password");
UFT is a product from HP, right? I can’t find any material specific to using UFT with Couchbase, but I would imagine it works in a similar way to other databases.
An insert will create a document. It will fail if a document with that same key already exists.
An upsert will create a document if a document with that key doesn’t exist, otherwise it will update the document with the key. I recommend checking out the docs for more information on the .NET SDK: https://developer.couchbase.com/documentation/server/4.5/sdk/dotnet/start-using-sdk.html
The code Jeff has demonstrated does not create a new cluster, it instead creates an object in the application code that can interact with an existing cluster.
