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Hazelcast .Net Client

C# client implementation for Hazelcast, the open source in-memory data grid. A comparison of features supported by various clients can be found here.

It is implemented using the Hazelcast Open Binary Client Protocol

Getting Started


You can install .net client from NuGet Repo using PackageManager:

PM> Install-Package Hazelcast.Net

Net Core and .Net Framework Support

Hazelcast .Net Client supports .Net Framemork 4.0+ and Net Core 2.0+ .


You can configure the Hazelcast .Net Client via API or XML. To start the client, you can pass a configuration or leave it empty to use default values.

For programatic configuration; please see Hazelcast.Config packege and related API doc.

For XML configuration; .Net Client uses the same XML schema of Hazelcast Java Client.

Sample client configuration:

var clientConfig = new ClientConfig();
clientConfig.GetNetworkConfig().AddAddress( "" );
clientConfig.GetNetworkConfig().AddAddress( "" );

// Portable Serialization setup up 
  .AddPortableFactory( MyPortableFactory.FactoryId, new MyPortableFactory() );

Starting the Client

After configuration, you can obtain a client using one of the static methods of Hazelcast, as shown below.

//client with default configuration
IHazelcastInstance defaultClient = HazelcastClient.NewHazelcastClient();

//client with custom configuration
IHazelcastInstance client = HazelcastClient.NewHazelcastClient(clientConfig);

//client configured from an xml configuration file 
IHazelcastInstance xmlConfClient = Hazelcast.NewHazelcastClient(@"..\Hazelcast.Net\Resources\hazelcast-client.xml");

Basic Usage

All distributed objects can be obtained from client IHazelcastInstance. An example for map is shown below:

var map = client.GetMap<string,string>("mapName");
map.Put("key", "value");

Please see Hazelcast.Examples project on this repo for various code samples.

Advanced Topics

Please refer to Hazelcast Reference Manual.

How to build

You can build the source by calling the batch file build.bat.

Strong name generation

Hazelcast assemblies are signed using a strong name key. To be able to build the project, you will need to create your own strong name key.

This can be done using the sn.exe tool which ships with .NET framework.

sn -k hazelcast.snk

Furthermore, you will need to update Hazelcast.Net/Properties/AssemblyInfo.cs with the new public key.

[assembly: System.Runtime.CompilerServices.InternalsVisibleTo(@"Hazelcast.Test, PublicKey=00240000049e....b3")]

To get the new public key, use the following commands:

sn -p hazelcast.snk hazelcast.key
sn -tp hazelcast.key

How to run tests

All the tests use NUnit, and require a hazelcast.jar and JVM to run the hazelcast instance. The script build.bat will attempt to download hazelcast.jar for the latest snapshot from Maven Central and will run the tests using the downloaded jar.

Mail Group

Please join the mail group if you are interested in using or developing Hazelcast.


Hazelcast is available under the Apache 2 License. Please see the Licensing appendix for more information.


Copyright (c) 2008-2018, Hazelcast, Inc. All Rights Reserved.

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