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| // contributor license agreements. See the NOTICE file distributed with |
| // this work for additional information regarding copyright ownership. |
| // The ASF licenses this file to You under the Apache License, Version 2.0 |
| // (the "License"); you may not use this file except in compliance with |
| // the License. You may obtain a copy of the License at |
| // |
| // http://www.apache.org/licenses/LICENSE-2.0 |
| // |
| // Unless required by applicable law or agreed to in writing, software |
| // distributed under the License is distributed on an "AS IS" BASIS, |
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| There are two types of nodes: servers and clients. |
| |
| A _server node_ is the base computational and data storage unit. Typically, you start a single server |
| node per machine or container and it will scale vertically by utilizing all of the CPU, RAM, and other resources |
| available unless specified differently. Those resources are pooled and become available to Ignite applications |
| once the server node joins a cluster of other server nodes. |
| |
| image::images/ignite_clustering.png[Ignite Deployment] |
| |
| A _cluster_ is a group of server nodes interconnected together in order to provide shared resources like RAM and |
| CPU to your applications. |
| |
| Operations executed by applications (key-value queries, SQL, computations, etc.) are directed to and performed by |
| server nodes. If you need more computational power or data storage, scale out your cluster by adding more server |
| nodes to it. |
| |
| _Client nodes_ are your connection endpoints and gateways from the application layer to the cluster of |
| server nodes. You always embed a client into your application code and execute required APIs. The clients shield all |
| the complexity of Ignite's distributed nature from application developers who will see the cluster as a single unit. It's as simple as connecting to an RDBMS via a JDBC driver or Spring Data framework. |
