<commit_before>
# Hazelcast Clusters

This chapter describes Hazelcast clusters and the ways cluster members use to form a Hazelcast cluster. 

## Hazelcast Cluster Overview

A Hazelcast cluster is a network of cluster members that run Hazelcast. Cluster members, or nodes, automatically join together to form a cluster. This automatic joining takes place with some discovery mechanisms that the cluster members use to find each other. Hazelcast uses multicast auto-discovery, IP lists and EC2 cloud discovery mechanisms. The following sections describe each mechanism.


### Multicast Auto-Discovery

???

### IP Lists
???

### EC2 Auto-Discovery
???








<commit_msg>Hazelcast Clusters chapter, a bit more content.<commit_after>
# Hazelcast Clusters

This chapter describes Hazelcast clusters and the ways cluster members use to form a Hazelcast cluster. 

## Hazelcast Cluster Overview

A Hazelcast cluster is a network of cluster members that run Hazelcast. Cluster members, or nodes, automatically join together to form a cluster. This automatic joining takes place with some discovery mechanisms that the cluster members use to find each other. Hazelcast uses multicast auto-discovery, IP/hostname lists and EC2 cloud discovery mechanisms. The following sections describe each mechanism.
	
![image](images/NoteSmall.jpg) ***NOTE:*** *After a cluster is formed, communication between cluster members is always via TCP/IP.*

### Multicast Auto-Discovery



<br></br>
***RELATED INFORMATION***

*Please refer to ??? for the configuration of multicast.*
<br></br>


### IP/Hostname Lists
???


<br></br>
***RELATED INFORMATION***

*Please refer to ??? for the configuration ???.*
<br></br>

### EC2 Auto-Discovery
???


<br></br>
***RELATED INFORMATION***

*Please refer to ??? for the configuration EC2 auto-discovery.*
<br></br>






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