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<a href="/docs/latest/data-rebalancing" class='' >Data Rebalancing</a>
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<a href="/docs/latest/machine-learning/preprocessing"
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<a href="/docs/latest/machine-learning/multiclass-classification"
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<li><a href="/docs/latest/machine-learning/ensemble-methods/random-forest" class=''>Random Forest</a></li>
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<a href="/docs/latest/machine-learning/recommendation-systems"
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<li>
<a href="/docs/latest/key-value-api/continuous-queries" class='' >Using Continuous Queries</a>
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<li>
<a href="/docs/latest/services/services" class='' >Using Ignite Services</a>
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<a href="/docs/latest/messaging" class='' >Using Ignite Messaging</a>
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<a href="/docs/latest/data-structures/atomic-types"
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<a href="/docs/latest/data-structures/countdownlatch"
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<a href="/docs/latest/data-structures/atomic-sequence"
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<a href="/docs/latest/data-structures/semaphore"
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<article data-swiftype-index='true'>
<a class='edit-link' href="https://github.com/apache/ignite/tree/IGNITE-7595/docs/_docs/installation/kubernetes/amazon-eks-deployment.adoc" target="_blank">Edit</a>
<h1>Amazon EKS Deployment</h1>
<div id="preamble">
<div class="sectionbody">
<div class="paragraph">
<p>This page is a step-by-step guide on how to deploy an Ignite cluster on Amazon EKS.</p>
</div>
<div class="paragraph">
<p>We will consider two deployment modes: stateful and stateless.
Stateless deployments are suitable for in-memory use cases where your cluster keeps the application data in RAM for better performance.
A stateful deployment differs from a stateless deployment in that it includes setting up persistent volumes for the cluster&#8217;s storage.</p>
</div>
<div class="admonitionblock caution">
<table>
<tr>
<td class="icon">
<div class="title">Caution</div>
</td>
<td class="content">
This guide focuses on deploying server nodes on Kubernetes. If you want to run client nodes on Kubernetes while your cluster is deployed elsewhere, you need to enable the communication mode designed for client nodes running behind a NAT. Refer to <a href="/docs/latest/clustering/running-client-nodes-behind-nat">this section</a>.
</td>
</tr>
</table>
</div>
<div class="admonitionblock caution">
<table>
<tr>
<td class="icon">
<div class="title">Caution</div>
</td>
<td class="content">
This guide was written using <code>kubectl</code> version 1.17.
</td>
</tr>
</table>
</div>
<div class="paragraph">
<p>In this guide, we will use the <code>eksctl</code> command line tool to create a Kubernetes cluster.
Follow <a href="https://docs.aws.amazon.com/eks/latest/userguide/getting-started-eksctl.html" target="_blank" rel="noopener">this guide</a> to install the required resources and get familiar with the tool.</p>
</div>
</div>
</div>
<div class="sect1">
<h2 id="creating-an-amazon-eks-cluster">Creating an Amazon EKS Cluster</h2>
<div class="sectionbody">
<div class="paragraph">
<p>First of all, you need to create an Amazon EKS cluster that will provide resources for our Kubernetes pods.
You can create a cluster using the following command:</p>
</div>
<div class="listingblock">
<div class="content">
<pre class="rouge highlight"><code data-lang="shell">eksctl create cluster <span class="nt">--name</span> ignitecluster <span class="nt">--nodes</span> 2 <span class="nt">--nodes-min</span> 1 <span class="nt">--nodes-max</span> 4</code></pre>
</div>
</div>
<div class="paragraph">
<p>Check the <a href="https://docs.aws.amazon.com/eks/latest/userguide/create-cluster.html" target="_blank" rel="noopener">EKS documentation</a> for the full list of options.
The provisioning of a cluster can take up to 15 minutes.
Check the status of the cluster using the following command:</p>
</div>
<div class="listingblock">
<div class="content">
<pre class="rouge highlight"><code data-lang="shell"><span class="nv">$ </span>eksctl get cluster <span class="nt">-n</span> ignitecluster
NAME VERSION STATUS CREATED VPC SUBNETS SECURITYGROUPS
ignitecluster 1.14 ACTIVE 2019-12-16T09:57:09Z vpc-0ebf4a6ee3de12c63 subnet-00fa7e85aaebcd54d,subnet-06134ae545a5cc04c,subnet-063d9fdb481e727d2,subnet-0a087062ddc47c341 sg-06a6800a67ea95528</code></pre>
</div>
</div>
<div class="paragraph">
<p>When the status of the cluster becomes ACTIVE, you can start creating Kubernetes resources.</p>
</div>
<div class="paragraph">
<p>Verify that your <code>kubectl</code> is configured correctly:</p>
</div>
<div class="listingblock">
<div class="content">
<pre class="rouge highlight"><code data-lang="shell"><span class="nv">$ </span>kubectl get svc
NAME TYPE CLUSTER-IP EXTERNAL-IP PORT<span class="o">(</span>S<span class="o">)</span> AGE
kubernetes ClusterIP 10.100.0.1 &lt;none&gt; 443/TCP 6m49s</code></pre>
</div>
</div>
</div>
</div>
<div class="sect1">
<h2 id="kubernetes-configuration">Kubernetes Configuration</h2>
<div class="sectionbody">
<div class="paragraph">
<p>Kubernetes configuration involves creating the following resources:</p>
</div>
<div class="ulist">
<ul>
<li>
<p>A namespace</p>
</li>
<li>
<p>A cluster role</p>
</li>
<li>
<p>A ConfigMap for the node configuration file</p>
</li>
<li>
<p>A service to be used for discovery and load balancing when external apps connect to the cluster</p>
</li>
<li>
<p>A configuration for pods running Ignite nodes</p>
</li>
</ul>
</div>
<div class="sect2">
<h3 id="creating-namespace">Creating Namespace</h3>
<div class="paragraph">
<p>Create a unique namespace for your deployment.
In our case, the namespace is called “ignite”.</p>
</div>
<div class="paragraph">
<p>Create the namespace using the following command:</p>
</div>
<div class="listingblock">
<div class="content">
<pre class="rouge highlight"><code data-lang="shell">kubectl create namespace ignite</code></pre>
</div>
</div>
</div>
<div class="sect2">
<h3 id="creating-service">Creating Service</h3>
<div class="paragraph">
<p>The Kubernetes service is used for auto-discovery and as a load-balancer for external applications that will connect to your cluster.</p>
</div>
<div class="paragraph">
<p>Every time a new node is started (in a separate pod), the IP finder connects to the service via the Kubernetes API to obtain the list of the existing pods' addresses.
Using these addresses, the new node discovers all cluster nodes.</p>
</div>
<div class="listingblock">
<div class="title">service.yaml</div>
<div class="content">
<pre class="rouge highlight"><code data-lang="yaml"><span class="na">apiVersion</span><span class="pi">:</span> <span class="s">v1</span>
<span class="na">kind</span><span class="pi">:</span> <span class="s">Service</span>
<span class="na">metadata</span><span class="pi">:</span>
<span class="c1"># The name must be equal to KubernetesConnectionConfiguration.serviceName</span>
<span class="na">name</span><span class="pi">:</span> <span class="s">ignite-service</span>
<span class="c1"># The name must be equal to KubernetesConnectionConfiguration.namespace</span>
<span class="na">namespace</span><span class="pi">:</span> <span class="s">ignite</span>
<span class="na">labels</span><span class="pi">:</span>
<span class="na">app</span><span class="pi">:</span> <span class="s">ignite</span>
<span class="na">spec</span><span class="pi">:</span>
<span class="na">type</span><span class="pi">:</span> <span class="s">LoadBalancer</span>
<span class="na">ports</span><span class="pi">:</span>
<span class="pi">-</span> <span class="na">name</span><span class="pi">:</span> <span class="s">rest</span>
<span class="na">port</span><span class="pi">:</span> <span class="m">8080</span>
<span class="na">targetPort</span><span class="pi">:</span> <span class="m">8080</span>
<span class="pi">-</span> <span class="na">name</span><span class="pi">:</span> <span class="s">thinclients</span>
<span class="na">port</span><span class="pi">:</span> <span class="m">10800</span>
<span class="na">targetPort</span><span class="pi">:</span> <span class="m">10800</span>
<span class="c1"># Optional - remove 'sessionAffinity' property if the cluster</span>
<span class="c1"># and applications are deployed within Kubernetes</span>
<span class="c1"># sessionAffinity: ClientIP</span>
<span class="na">selector</span><span class="pi">:</span>
<span class="c1"># Must be equal to the label set for pods.</span>
<span class="na">app</span><span class="pi">:</span> <span class="s">ignite</span>
<span class="na">status</span><span class="pi">:</span>
<span class="na">loadBalancer</span><span class="pi">:</span> <span class="pi">{}</span></code></pre>
</div>
</div>
<div class="paragraph">
<p>Create the service:</p>
</div>
<div class="listingblock">
<div class="content">
<pre class="rouge highlight"><code data-lang="shell">kubectl create <span class="nt">-f</span> service.yaml</code></pre>
</div>
</div>
</div>
<div class="sect2">
<h3 id="creating-cluster-role-and-service-account">Creating Cluster Role and Service Account</h3>
<div class="paragraph">
<p>Create a service account:</p>
</div>
<div class="listingblock">
<div class="content">
<pre class="rouge highlight"><code data-lang="shell">kubectl create sa ignite <span class="nt">-n</span> ignite</code></pre>
</div>
</div>
<div class="paragraph">
<p>A cluster role is used to grant access to pods. The following file is an example of a cluster role:</p>
</div>
<div class="listingblock">
<div class="title">cluster-role.yaml</div>
<div class="content">
<pre class="rouge highlight"><code data-lang="yaml"><span class="na">apiVersion</span><span class="pi">:</span> <span class="s">rbac.authorization.k8s.io/v1</span>
<span class="na">kind</span><span class="pi">:</span> <span class="s">ClusterRole</span>
<span class="na">metadata</span><span class="pi">:</span>
<span class="na">name</span><span class="pi">:</span> <span class="s">ignite</span>
<span class="na">namespace</span><span class="pi">:</span> <span class="s">ignite</span>
<span class="na">rules</span><span class="pi">:</span>
<span class="pi">-</span> <span class="na">apiGroups</span><span class="pi">:</span>
<span class="pi">-</span> <span class="s2">"</span><span class="s">"</span>
<span class="na">resources</span><span class="pi">:</span> <span class="c1"># Here are the resources you can access</span>
<span class="pi">-</span> <span class="s">pods</span>
<span class="pi">-</span> <span class="s">endpoints</span>
<span class="na">verbs</span><span class="pi">:</span> <span class="c1"># That is what you can do with them</span>
<span class="pi">-</span> <span class="s">get</span>
<span class="pi">-</span> <span class="s">list</span>
<span class="pi">-</span> <span class="s">watch</span>
<span class="nn">---</span>
<span class="na">kind</span><span class="pi">:</span> <span class="s">ClusterRoleBinding</span>
<span class="na">apiVersion</span><span class="pi">:</span> <span class="s">rbac.authorization.k8s.io/v1</span>
<span class="na">metadata</span><span class="pi">:</span>
<span class="na">name</span><span class="pi">:</span> <span class="s">ignite</span>
<span class="na">roleRef</span><span class="pi">:</span>
<span class="na">kind</span><span class="pi">:</span> <span class="s">ClusterRole</span>
<span class="na">name</span><span class="pi">:</span> <span class="s">ignite</span>
<span class="na">apiGroup</span><span class="pi">:</span> <span class="s">rbac.authorization.k8s.io</span>
<span class="na">subjects</span><span class="pi">:</span>
<span class="pi">-</span> <span class="na">kind</span><span class="pi">:</span> <span class="s">ServiceAccount</span>
<span class="na">name</span><span class="pi">:</span> <span class="s">ignite</span>
<span class="na">namespace</span><span class="pi">:</span> <span class="s">ignite</span></code></pre>
</div>
</div>
<div class="paragraph">
<p>Run the following command to create the role and a role binding:</p>
</div>
<div class="listingblock">
<div class="content">
<pre class="rouge highlight"><code data-lang="shell">kubectl create <span class="nt">-f</span> cluster-role.yaml</code></pre>
</div>
</div>
</div>
<div class="sect2">
<h3 id="creating-configmap-for-node-configuration-file">Creating ConfigMap for Node Configuration File</h3>
<div class="paragraph">
<p>We will create a ConfigMap, which will keep the node configuration file for every node to use.
This will allow you to keep a single instance of the configuration file for all nodes.</p>
</div>
<div class="paragraph">
<p>Let&#8217;s create a configuration file first.
Choose one of the tabs below, depending on whether you use persistence or not.</p>
</div>
<code-tabs><code-tab data-tab='Configuration without persistence'><div class="paragraph">
<p>We must use the <code>TcpDiscoveryKubernetesIpFinder</code> IP finder for node discovery.
This IP finder connects to the service via the Kubernetes API and obtains the list of the existing pods' addresses. Using these addresses, the new node discovers all other cluster nodes.</p>
</div>
<div class="paragraph">
<p>The file will look like this:</p>
</div>
<div class="listingblock">
<div class="title">node-configuration.xml</div>
<div class="content">
<pre class="rouge highlight"><code data-lang="xml"><span class="nt">&lt;beans</span> <span class="na">xmlns=</span><span class="s">"http://www.springframework.org/schema/beans"</span>
<span class="na">xmlns:xsi=</span><span class="s">"http://www.w3.org/2001/XMLSchema-instance"</span>
<span class="na">xsi:schemaLocation=</span><span class="s">"
http://www.springframework.org/schema/beans
http://www.springframework.org/schema/beans/spring-beans.xsd"</span><span class="nt">&gt;</span>
<span class="nt">&lt;bean</span> <span class="na">class=</span><span class="s">"org.apache.ignite.configuration.IgniteConfiguration"</span><span class="nt">&gt;</span>
<span class="nt">&lt;property</span> <span class="na">name=</span><span class="s">"discoverySpi"</span><span class="nt">&gt;</span>
<span class="nt">&lt;bean</span> <span class="na">class=</span><span class="s">"org.apache.ignite.spi.discovery.tcp.TcpDiscoverySpi"</span><span class="nt">&gt;</span>
<span class="nt">&lt;property</span> <span class="na">name=</span><span class="s">"ipFinder"</span><span class="nt">&gt;</span>
<span class="nt">&lt;bean</span> <span class="na">class=</span><span class="s">"org.apache.ignite.spi.discovery.tcp.ipfinder.kubernetes.TcpDiscoveryKubernetesIpFinder"</span><span class="nt">&gt;</span>
<span class="nt">&lt;constructor-arg&gt;</span>
<span class="nt">&lt;bean</span> <span class="na">class=</span><span class="s">"org.apache.ignite.kubernetes.configuration.KubernetesConnectionConfiguration"</span><span class="nt">&gt;</span>
<span class="nt">&lt;property</span> <span class="na">name=</span><span class="s">"namespace"</span> <span class="na">value=</span><span class="s">"default"</span> <span class="nt">/&gt;</span>
<span class="nt">&lt;property</span> <span class="na">name=</span><span class="s">"serviceName"</span> <span class="na">value=</span><span class="s">"ignite"</span> <span class="nt">/&gt;</span>
<span class="nt">&lt;/bean&gt;</span>
<span class="nt">&lt;/constructor-arg&gt;</span>
<span class="nt">&lt;/bean&gt;</span>
<span class="nt">&lt;/property&gt;</span>
<span class="nt">&lt;/bean&gt;</span>
<span class="nt">&lt;/property&gt;</span>
<span class="nt">&lt;/bean&gt;</span>
<span class="nt">&lt;/beans&gt;</span></code></pre>
</div>
</div></code-tab><code-tab data-tab='Configuration with persistence'><div class="paragraph">
<p>In the configuration file, we will:</p>
</div>
<div class="ulist">
<ul>
<li>
<p>Enable <a href="/docs/latest/persistence/native-persistence">native persistence</a> and specify the <code>workDirectory</code>, <code>walPath</code>, and <code>walArchivePath</code>. These directories are mounted in each pod that runs an Ignite node. Volume configuration is part of the <a href="#Creating Pod Configuration">pod configuration</a>.</p>
</li>
<li>
<p>Use the <code>TcpDiscoveryKubernetesIpFinder</code> IP finder. This IP finder connects to the service via the Kubernetes API and obtains the list of the existing pods' addresses. Using these addresses, the new node discovers all other cluster nodes.</p>
</li>
</ul>
</div>
<div class="paragraph">
<p>The file look like this:</p>
</div>
<div class="listingblock">
<div class="title">node-configuration.xml</div>
<div class="content">
<pre class="rouge highlight"><code data-lang="xml"><span class="nt">&lt;beans</span> <span class="na">xmlns=</span><span class="s">"http://www.springframework.org/schema/beans"</span>
<span class="na">xmlns:xsi=</span><span class="s">"http://www.w3.org/2001/XMLSchema-instance"</span>
<span class="na">xsi:schemaLocation=</span><span class="s">"http://www.springframework.org/schema/beans
http://www.springframework.org/schema/beans/spring-beans.xsd"</span><span class="nt">&gt;</span>
<span class="nt">&lt;bean</span> <span class="na">class=</span><span class="s">"org.apache.ignite.configuration.IgniteConfiguration"</span><span class="nt">&gt;</span>
<span class="nt">&lt;property</span> <span class="na">name=</span><span class="s">"workDirectory"</span> <span class="na">value=</span><span class="s">"/ignite/work"</span><span class="nt">/&gt;</span>
<span class="nt">&lt;property</span> <span class="na">name=</span><span class="s">"dataStorageConfiguration"</span><span class="nt">&gt;</span>
<span class="nt">&lt;bean</span> <span class="na">class=</span><span class="s">"org.apache.ignite.configuration.DataStorageConfiguration"</span><span class="nt">&gt;</span>
<span class="nt">&lt;property</span> <span class="na">name=</span><span class="s">"defaultDataRegionConfiguration"</span><span class="nt">&gt;</span>
<span class="nt">&lt;bean</span> <span class="na">class=</span><span class="s">"org.apache.ignite.configuration.DataRegionConfiguration"</span><span class="nt">&gt;</span>
<span class="nt">&lt;property</span> <span class="na">name=</span><span class="s">"persistenceEnabled"</span> <span class="na">value=</span><span class="s">"true"</span><span class="nt">/&gt;</span>
<span class="nt">&lt;/bean&gt;</span>
<span class="nt">&lt;/property&gt;</span>
<span class="nt">&lt;property</span> <span class="na">name=</span><span class="s">"walPath"</span> <span class="na">value=</span><span class="s">"/ignite/wal"</span><span class="nt">/&gt;</span>
<span class="nt">&lt;property</span> <span class="na">name=</span><span class="s">"walArchivePath"</span> <span class="na">value=</span><span class="s">"/ignite/walarchive"</span><span class="nt">/&gt;</span>
<span class="nt">&lt;/bean&gt;</span>
<span class="nt">&lt;/property&gt;</span>
<span class="nt">&lt;property</span> <span class="na">name=</span><span class="s">"discoverySpi"</span><span class="nt">&gt;</span>
<span class="nt">&lt;bean</span> <span class="na">class=</span><span class="s">"org.apache.ignite.spi.discovery.tcp.TcpDiscoverySpi"</span><span class="nt">&gt;</span>
<span class="nt">&lt;property</span> <span class="na">name=</span><span class="s">"ipFinder"</span><span class="nt">&gt;</span>
<span class="nt">&lt;bean</span> <span class="na">class=</span><span class="s">"org.apache.ignite.spi.discovery.tcp.ipfinder.kubernetes.TcpDiscoveryKubernetesIpFinder"</span><span class="nt">&gt;</span>
<span class="nt">&lt;constructor-arg&gt;</span>
<span class="nt">&lt;bean</span> <span class="na">class=</span><span class="s">"org.apache.ignite.kubernetes.configuration.KubernetesConnectionConfiguration"</span><span class="nt">&gt;</span>
<span class="nt">&lt;property</span> <span class="na">name=</span><span class="s">"namespace"</span> <span class="na">value=</span><span class="s">"default"</span> <span class="nt">/&gt;</span>
<span class="nt">&lt;property</span> <span class="na">name=</span><span class="s">"serviceName"</span> <span class="na">value=</span><span class="s">"ignite"</span> <span class="nt">/&gt;</span>
<span class="nt">&lt;/bean&gt;</span>
<span class="nt">&lt;/constructor-arg&gt;</span>
<span class="nt">&lt;/bean&gt;</span>
<span class="nt">&lt;/property&gt;</span>
<span class="nt">&lt;/bean&gt;</span>
<span class="nt">&lt;/property&gt;</span>
<span class="nt">&lt;/bean&gt;</span>
<span class="nt">&lt;/beans&gt;</span></code></pre>
</div>
</div></code-tab></code-tabs>
<div class="paragraph">
<p>The <code>namespace</code> and <code>serviceName</code> properties of the IP finder configuration must be the same as specified in the <a href="#creating-service">service configuration</a>.
Add other properties as required for your use case.</p>
</div>
<div class="paragraph">
<p>To create the ConfigMap, run the following command in the directory with the <code>node-configuration.xml</code> file.</p>
</div>
<div class="listingblock">
<div class="content">
<pre class="rouge highlight"><code data-lang="shell">kubectl create configmap ignite-config <span class="nt">-n</span> ignite <span class="nt">--from-file</span><span class="o">=</span>node-configuration.xml</code></pre>
</div>
</div>
</div>
<div class="sect2">
<h3 id="creating-pod-configuration">Creating Pod Configuration</h3>
<div class="paragraph">
<p>Now we will create a configuration for pods.
In the case of stateless deployment, we will use a <a href="https://kubernetes.io/docs/concepts/workloads/controllers/deployment/" target="_blank" rel="noopener">Deployment</a>.
For a stateful deployment, we will use a <a href="https://kubernetes.io/docs/concepts/workloads/controllers/statefulset/" target="_blank" rel="noopener">StatefulSet</a>.</p>
</div>
<code-tabs><code-tab data-tab='Configuration without persistence'><div class="paragraph">
<p>Our Deployment configuration will deploy a ReplicaSet with two pods running Ignite 2.11.0.</p>
</div>
<div class="paragraph">
<p>In the container&#8217;s configuration, we will:</p>
</div>
<div class="ulist">
<ul>
<li>
<p>Enable the “ignite-kubernetes” and “ignite-rest-http” <a href="/docs/latest/installation/installing-using-docker#enabling-modules">modules</a>.</p>
</li>
<li>
<p>Use the configuration file from the ConfigMap we created earlier.</p>
</li>
<li>
<p>Open a number of ports:</p>
<div class="ulist">
<ul>
<li>
<p>47100 — the communication port</p>
</li>
<li>
<p>47500 ­—­ the discovery port</p>
</li>
<li>
<p>49112 — the default JMX port</p>
</li>
<li>
<p>10800 — thin client/JDBC/ODBC port</p>
</li>
<li>
<p>8080 — REST API port</p>
</li>
</ul>
</div>
</li>
</ul>
</div>
<div class="paragraph">
<p>The deployment configuration file might look like as follows:</p>
</div>
<div class="listingblock">
<div class="title">deployment.yaml</div>
<div class="content">
<pre class="rouge highlight"><code data-lang="yaml"><span class="c1"># An example of a Kubernetes configuration for pod deployment.</span>
<span class="na">apiVersion</span><span class="pi">:</span> <span class="s">apps/v1</span>
<span class="na">kind</span><span class="pi">:</span> <span class="s">Deployment</span>
<span class="na">metadata</span><span class="pi">:</span>
<span class="c1"># Cluster name.</span>
<span class="na">name</span><span class="pi">:</span> <span class="s">ignite-cluster</span>
<span class="na">namespace</span><span class="pi">:</span> <span class="s">ignite</span>
<span class="na">spec</span><span class="pi">:</span>
<span class="c1"># The initial number of pods to be started by Kubernetes.</span>
<span class="na">replicas</span><span class="pi">:</span> <span class="m">2</span>
<span class="na">selector</span><span class="pi">:</span>
<span class="na">matchLabels</span><span class="pi">:</span>
<span class="na">app</span><span class="pi">:</span> <span class="s">ignite</span>
<span class="na">template</span><span class="pi">:</span>
<span class="na">metadata</span><span class="pi">:</span>
<span class="na">labels</span><span class="pi">:</span>
<span class="na">app</span><span class="pi">:</span> <span class="s">ignite</span>
<span class="na">spec</span><span class="pi">:</span>
<span class="na">serviceAccountName</span><span class="pi">:</span> <span class="s">ignite</span>
<span class="na">terminationGracePeriodSeconds</span><span class="pi">:</span> <span class="m">60000</span>
<span class="na">containers</span><span class="pi">:</span>
<span class="c1"># Custom pod name.</span>
<span class="pi">-</span> <span class="na">name</span><span class="pi">:</span> <span class="s">ignite-node</span>
<span class="na">image</span><span class="pi">:</span> <span class="s">apacheignite/ignite:2.11.0</span>
<span class="na">env</span><span class="pi">:</span>
<span class="pi">-</span> <span class="na">name</span><span class="pi">:</span> <span class="s">OPTION_LIBS</span>
<span class="na">value</span><span class="pi">:</span> <span class="s">ignite-kubernetes,ignite-rest-http</span>
<span class="pi">-</span> <span class="na">name</span><span class="pi">:</span> <span class="s">CONFIG_URI</span>
<span class="na">value</span><span class="pi">:</span> <span class="s">file:///ignite/config/node-configuration.xml</span>
<span class="na">ports</span><span class="pi">:</span>
<span class="c1"># Ports to open.</span>
<span class="pi">-</span> <span class="na">containerPort</span><span class="pi">:</span> <span class="m">47100</span> <span class="c1"># communication SPI port</span>
<span class="pi">-</span> <span class="na">containerPort</span><span class="pi">:</span> <span class="m">47500</span> <span class="c1"># discovery SPI port</span>
<span class="pi">-</span> <span class="na">containerPort</span><span class="pi">:</span> <span class="m">49112</span> <span class="c1"># dafault JMX port</span>
<span class="pi">-</span> <span class="na">containerPort</span><span class="pi">:</span> <span class="m">10800</span> <span class="c1"># thin clients/JDBC driver port</span>
<span class="pi">-</span> <span class="na">containerPort</span><span class="pi">:</span> <span class="m">8080</span> <span class="c1"># REST API</span>
<span class="na">volumeMounts</span><span class="pi">:</span>
<span class="pi">-</span> <span class="na">mountPath</span><span class="pi">:</span> <span class="s">/ignite/config</span>
<span class="na">name</span><span class="pi">:</span> <span class="s">config-vol</span>
<span class="na">volumes</span><span class="pi">:</span>
<span class="pi">-</span> <span class="na">name</span><span class="pi">:</span> <span class="s">config-vol</span>
<span class="na">configMap</span><span class="pi">:</span>
<span class="na">name</span><span class="pi">:</span> <span class="s">ignite-config</span></code></pre>
</div>
</div>
<div class="paragraph">
<p>Create a deployment by running the following command:</p>
</div>
<div class="listingblock">
<div class="content">
<pre class="rouge highlight"><code data-lang="shell"> kubectl create <span class="nt">-f</span> deployment.yaml</code></pre>
</div>
</div></code-tab><code-tab data-tab='Configuration with persistence'><div class="paragraph">
<p>Our StatefulSet configuration deploys 2 pods running Ignite 2.11.0.</p>
</div>
<div class="paragraph">
<p>In the container&#8217;s configuration we will:</p>
</div>
<div class="ulist">
<ul>
<li>
<p>Enable the “ignite-kubernetes” and “ignite-rest-http” <a href="/docs/latest/installation/installing-using-docker#enabling-modules">modules</a>.</p>
</li>
<li>
<p>Use the configuration file from the ConfigMap we created earlier.</p>
</li>
<li>
<p>Mount volumes for the work directory (where application data is stored), WAL files, and WAL archive.</p>
</li>
<li>
<p>Open a number of ports:</p>
<div class="ulist">
<ul>
<li>
<p>47100 — the communication port</p>
</li>
<li>
<p>47500 ­—­ the discovery port</p>
</li>
<li>
<p>49112 — the default JMX port</p>
</li>
<li>
<p>10800 — thin client/JDBC/ODBC port</p>
</li>
<li>
<p>8080 — REST API port</p>
</li>
</ul>
</div>
</li>
</ul>
</div>
<div class="paragraph">
<p>The StatefulSet configuration file might look like as follows:</p>
</div>
<div class="listingblock">
<div class="title">statefulset.yaml</div>
<div class="content">
<pre class="rouge highlight"><code data-lang="yaml"><span class="c1"># An example of a Kubernetes configuration for pod deployment.</span>
<span class="na">apiVersion</span><span class="pi">:</span> <span class="s">apps/v1</span>
<span class="na">kind</span><span class="pi">:</span> <span class="s">StatefulSet</span>
<span class="na">metadata</span><span class="pi">:</span>
<span class="c1"># Cluster name.</span>
<span class="na">name</span><span class="pi">:</span> <span class="s">ignite-cluster</span>
<span class="na">namespace</span><span class="pi">:</span> <span class="s">ignite</span>
<span class="na">spec</span><span class="pi">:</span>
<span class="c1"># The initial number of pods to be started by Kubernetes.</span>
<span class="na">replicas</span><span class="pi">:</span> <span class="m">2</span>
<span class="na">serviceName</span><span class="pi">:</span> <span class="s">ignite</span>
<span class="na">selector</span><span class="pi">:</span>
<span class="na">matchLabels</span><span class="pi">:</span>
<span class="na">app</span><span class="pi">:</span> <span class="s">ignite</span>
<span class="na">template</span><span class="pi">:</span>
<span class="na">metadata</span><span class="pi">:</span>
<span class="na">labels</span><span class="pi">:</span>
<span class="na">app</span><span class="pi">:</span> <span class="s">ignite</span>
<span class="na">spec</span><span class="pi">:</span>
<span class="na">serviceAccountName</span><span class="pi">:</span> <span class="s">ignite</span>
<span class="na">terminationGracePeriodSeconds</span><span class="pi">:</span> <span class="m">60000</span>
<span class="na">containers</span><span class="pi">:</span>
<span class="c1"># Custom pod name.</span>
<span class="pi">-</span> <span class="na">name</span><span class="pi">:</span> <span class="s">ignite-node</span>
<span class="na">image</span><span class="pi">:</span> <span class="s">apacheignite/ignite:2.11.0</span>
<span class="na">env</span><span class="pi">:</span>
<span class="pi">-</span> <span class="na">name</span><span class="pi">:</span> <span class="s">OPTION_LIBS</span>
<span class="na">value</span><span class="pi">:</span> <span class="s">ignite-kubernetes,ignite-rest-http</span>
<span class="pi">-</span> <span class="na">name</span><span class="pi">:</span> <span class="s">CONFIG_URI</span>
<span class="na">value</span><span class="pi">:</span> <span class="s">file:///ignite/config/node-configuration.xml</span>
<span class="pi">-</span> <span class="na">name</span><span class="pi">:</span> <span class="s">JVM_OPTS</span>
<span class="na">value</span><span class="pi">:</span> <span class="s2">"</span><span class="s">-DIGNITE_WAL_MMAP=false"</span>
<span class="na">ports</span><span class="pi">:</span>
<span class="c1"># Ports to open.</span>
<span class="pi">-</span> <span class="na">containerPort</span><span class="pi">:</span> <span class="m">47100</span> <span class="c1"># communication SPI port</span>
<span class="pi">-</span> <span class="na">containerPort</span><span class="pi">:</span> <span class="m">47500</span> <span class="c1"># discovery SPI port</span>
<span class="pi">-</span> <span class="na">containerPort</span><span class="pi">:</span> <span class="m">49112</span> <span class="c1"># JMX port</span>
<span class="pi">-</span> <span class="na">containerPort</span><span class="pi">:</span> <span class="m">10800</span> <span class="c1"># thin clients/JDBC driver port</span>
<span class="pi">-</span> <span class="na">containerPort</span><span class="pi">:</span> <span class="m">8080</span> <span class="c1"># REST API</span>
<span class="na">volumeMounts</span><span class="pi">:</span>
<span class="pi">-</span> <span class="na">mountPath</span><span class="pi">:</span> <span class="s">/ignite/config</span>
<span class="na">name</span><span class="pi">:</span> <span class="s">config-vol</span>
<span class="pi">-</span> <span class="na">mountPath</span><span class="pi">:</span> <span class="s">/ignite/work</span>
<span class="na">name</span><span class="pi">:</span> <span class="s">work-vol</span>
<span class="pi">-</span> <span class="na">mountPath</span><span class="pi">:</span> <span class="s">/ignite/wal</span>
<span class="na">name</span><span class="pi">:</span> <span class="s">wal-vol</span>
<span class="pi">-</span> <span class="na">mountPath</span><span class="pi">:</span> <span class="s">/ignite/walarchive</span>
<span class="na">name</span><span class="pi">:</span> <span class="s">walarchive-vol</span>
<span class="na">securityContext</span><span class="pi">:</span>
<span class="na">fsGroup</span><span class="pi">:</span> <span class="m">2000</span> <span class="c1"># try removing this if you have permission issues</span>
<span class="na">volumes</span><span class="pi">:</span>
<span class="pi">-</span> <span class="na">name</span><span class="pi">:</span> <span class="s">config-vol</span>
<span class="na">configMap</span><span class="pi">:</span>
<span class="na">name</span><span class="pi">:</span> <span class="s">ignite-config</span>
<span class="na">volumeClaimTemplates</span><span class="pi">:</span>
<span class="pi">-</span> <span class="na">metadata</span><span class="pi">:</span>
<span class="na">name</span><span class="pi">:</span> <span class="s">work-vol</span>
<span class="na">spec</span><span class="pi">:</span>
<span class="na">accessModes</span><span class="pi">:</span> <span class="pi">[</span> <span class="s2">"</span><span class="s">ReadWriteOnce"</span> <span class="pi">]</span>
<span class="c1"># storageClassName: "ignite-persistence-storage-class"</span>
<span class="na">resources</span><span class="pi">:</span>
<span class="na">requests</span><span class="pi">:</span>
<span class="na">storage</span><span class="pi">:</span> <span class="s2">"</span><span class="s">1Gi"</span> <span class="c1"># make sure to provide enought space for your application data</span>
<span class="pi">-</span> <span class="na">metadata</span><span class="pi">:</span>
<span class="na">name</span><span class="pi">:</span> <span class="s">wal-vol</span>
<span class="na">spec</span><span class="pi">:</span>
<span class="na">accessModes</span><span class="pi">:</span> <span class="pi">[</span> <span class="s2">"</span><span class="s">ReadWriteOnce"</span> <span class="pi">]</span>
<span class="c1"># storageClassName: "ignite-wal-storage-class"</span>
<span class="na">resources</span><span class="pi">:</span>
<span class="na">requests</span><span class="pi">:</span>
<span class="na">storage</span><span class="pi">:</span> <span class="s2">"</span><span class="s">1Gi"</span>
<span class="pi">-</span> <span class="na">metadata</span><span class="pi">:</span>
<span class="na">name</span><span class="pi">:</span> <span class="s">walarchive-vol</span>
<span class="na">spec</span><span class="pi">:</span>
<span class="na">accessModes</span><span class="pi">:</span> <span class="pi">[</span> <span class="s2">"</span><span class="s">ReadWriteOnce"</span> <span class="pi">]</span>
<span class="c1"># storageClassName: "ignite-wal-storage-class"</span>
<span class="na">resources</span><span class="pi">:</span>
<span class="na">requests</span><span class="pi">:</span>
<span class="na">storage</span><span class="pi">:</span> <span class="s2">"</span><span class="s">1Gi"</span></code></pre>
</div>
</div>
<div class="paragraph">
<p>Note the <code>spec.volumeClaimTemplates</code> section, which defines persistent volumes provisioned by a persistent volume provisioner.
The volume type depends on the cloud provider.
You can have more control over the volume type by defining <a href="https://kubernetes.io/docs/concepts/storage/storage-classes/" target="_blank" rel="noopener">storage classes</a>.</p>
</div>
<div class="paragraph">
<p>Create the StatefulSet by running the following command:</p>
</div>
<div class="listingblock">
<div class="content">
<pre class="rouge highlight"><code data-lang="shell"> kubectl create <span class="nt">-f</span> statefulset.yaml</code></pre>
</div>
</div></code-tab></code-tabs>
<div class="paragraph">
<p>Check if the pods were deployed correctly:</p>
</div>
<div class="listingblock">
<div class="content">
<pre class="rouge highlight"><code data-lang="shell">$ kubectl get pods -n ignite
NAME READY STATUS RESTARTS AGE
ignite-cluster-5b69557db6-lcglw 1/1 Running 0 44m
ignite-cluster-5b69557db6-xpw5d 1/1 Running 0 44m</code></pre>
</div>
</div>
<div class="paragraph">
<p>Check the logs of the nodes:</p>
</div>
<div class="listingblock">
<div class="content">
<pre class="rouge highlight"><code data-lang="shell">$ kubectl logs ignite-cluster-5b69557db6-lcglw -n ignite
...
[14:33:50] Ignite documentation: http://gridgain.com
[14:33:50]
[14:33:50] Quiet mode.
[14:33:50] ^-- Logging to file '/opt/gridgain/work/log/ignite-b8622b65.0.log'
[14:33:50] ^-- Logging by 'JavaLogger [quiet=true, config=null]'
[14:33:50] ^-- To see **FULL** console log here add -DIGNITE_QUIET=false or "-v" to ignite.{sh|bat}
[14:33:50]
[14:33:50] OS: Linux 4.19.81 amd64
[14:33:50] VM information: OpenJDK Runtime Environment 1.8.0_212-b04 IcedTea OpenJDK 64-Bit Server VM 25.212-b04
[14:33:50] Please set system property '-Djava.net.preferIPv4Stack=true' to avoid possible problems in mixed environments.
[14:33:50] Initial heap size is 30MB (should be no less than 512MB, use -Xms512m -Xmx512m).
[14:33:50] Configured plugins:
[14:33:50] ^-- None
[14:33:50]
[14:33:50] Configured failure handler: [hnd=StopNodeOrHaltFailureHandler [tryStop=false, timeout=0, super=AbstractFailureHandler [ignoredFailureTypes=UnmodifiableSet [SYSTEM_WORKER_BLOCKED, SYSTEM_CRITICAL_OPERATION_TIMEOUT]]]]
[14:33:50] Message queue limit is set to 0 which may lead to potential OOMEs when running cache operations in FULL_ASYNC or PRIMARY_SYNC modes due to message queues growth on sender and receiver sides.
[14:33:50] Security status [authentication=off, tls/ssl=off]
[14:34:00] Nodes started on local machine require more than 80% of physical RAM what can lead to significant slowdown due to swapping (please decrease JVM heap size, data region size or checkpoint buffer size) [required=918MB, available=1849MB]
[14:34:01] Performance suggestions for grid (fix if possible)
[14:34:01] To disable, set -DIGNITE_PERFORMANCE_SUGGESTIONS_DISABLED=true
[14:34:01] ^-- Enable G1 Garbage Collector (add '-XX:+UseG1GC' to JVM options)
[14:34:01] ^-- Specify JVM heap max size (add '-Xmx<size>[g|G|m|M|k|K]' to JVM options)
[14:34:01] ^-- Set max direct memory size if getting 'OOME: Direct buffer memory' (add '-XX:MaxDirectMemorySize=<size>[g|G|m|M|k|K]' to JVM options)
[14:34:01] ^-- Disable processing of calls to System.gc() (add '-XX:+DisableExplicitGC' to JVM options)
[14:34:01] Refer to this page for more performance suggestions: https://ignite.apache.org/docs/latest/perf-and-troubleshooting/general-perf-tips
[14:34:01]
[14:34:01] To start Console Management & Monitoring run ignitevisorcmd.{sh|bat}
[14:34:01] Data Regions Configured:
[14:34:01] ^-- default [initSize=256.0 MiB, maxSize=370.0 MiB, persistence=false, lazyMemoryAllocation=true]
[14:34:01]
[14:34:01] Ignite node started OK (id=b8622b65)
[14:34:01] Topology snapshot [ver=2, locNode=b8622b65, servers=2, clients=0, state=ACTIVE, CPUs=2, offheap=0.72GB, heap=0.88GB]</code></pre>
</div>
</div>
<div class="paragraph">
<p>The string <code>servers=2</code> in the last line indicates that the two nodes joined into a single cluster.</p>
</div>
</div>
</div>
</div>
<div class="sect1">
<h2 id="activating-the-cluster">Activating the Cluster</h2>
<div class="sectionbody">
<div class="paragraph">
<p>If you deployed a stateless cluster, skip this step: a cluster without persistence does not require activation.</p>
</div>
<div class="paragraph">
<p>If you are using persistence, you must activate the cluster after it is started. To do that, connect to one of the pods:</p>
</div>
<div class="listingblock">
<div class="content">
<pre class="rouge highlight"><code data-lang="shell">kubectl <span class="nb">exec</span> <span class="nt">-it</span> &lt;pod_name&gt; <span class="nt">-n</span> ignite <span class="nt">--</span> /bin/bash</code></pre>
</div>
</div>
<div class="paragraph">
<p>Execute the following command:</p>
</div>
<div class="listingblock">
<div class="content">
<pre class="rouge highlight"><code data-lang="shell">/opt/ignite/apache-ignite/bin/control.sh <span class="nt">--set-state</span> ACTIVE <span class="nt">--yes</span></code></pre>
</div>
</div>
<div class="paragraph">
<p>You can also activate the cluster using the <a href="/docs/latest/restapi#change-cluster-state">REST API</a>.
Refer to the <a href="#connecting-to-the-cluster">Connecting to the Cluster</a> section for details about connection to the cluster&#8217;s REST API.</p>
</div>
</div>
</div>
<div class="sect1">
<h2 id="scaling-the-cluster">Scaling the Cluster</h2>
<div class="sectionbody">
<div class="paragraph">
<p>You can add more nodes to the cluster by using the <code>kubectl scale</code> command.</p>
</div>
<div class="admonitionblock caution">
<table>
<tr>
<td class="icon">
<div class="title">Caution</div>
</td>
<td class="content">
Make sure your Amazon EKS cluster has enough resources to add new pods.
</td>
</tr>
</table>
</div>
<div class="paragraph">
<p>In the following example, we will bring up one more node (we had two).</p>
</div>
<code-tabs><code-tab data-tab='Configuration without persistence'><div class="paragraph">
<p>To scale your Deployment, run the following command:</p>
</div>
<div class="listingblock">
<div class="content">
<pre class="rouge highlight"><code data-lang="shell">kubectl scale deployment ignite-cluster <span class="nt">--replicas</span><span class="o">=</span>3 <span class="nt">-n</span> ignite</code></pre>
</div>
</div></code-tab><code-tab data-tab='Configuration with persistence'><div class="paragraph">
<p>To scale your StatefulSet, run the following command:</p>
</div>
<div class="listingblock">
<div class="content">
<pre class="rouge highlight"><code data-lang="shell">kubectl scale sts ignite-cluster <span class="nt">--replicas</span><span class="o">=</span>3 <span class="nt">-n</span> ignite</code></pre>
</div>
</div>
<div class="paragraph">
<p>After scaling the cluster, <a href="/docs/latest/control-script#activation-deactivation-and-topology-management">change the baseline topology</a> accordingly.</p>
</div></code-tab></code-tabs>
<div class="admonitionblock caution">
<table>
<tr>
<td class="icon">
<div class="title">Caution</div>
</td>
<td class="content">
If you reduce the number of nodes by more than the <a href="/docs/latest/configuring-caches/configuring-backups">number of partition backups</a>, you may lose data. The proper way to scale down is to redistribute the data after removing a node by changing the <a href="/docs/latest/control-script#removing-nodes-from-baseline-topology">baseline topology</a>.
</td>
</tr>
</table>
</div>
</div>
</div>
<div class="sect1">
<h2 id="connecting-to-the-cluster">Connecting to the Cluster</h2>
<div class="sectionbody">
<div class="paragraph">
<p>If your application is also running in Kubernetes, you can use either thin clients or client nodes to connect to the cluster.</p>
</div>
<div class="paragraph">
<p>Get the public IP of the service:</p>
</div>
<div class="listingblock">
<div class="content">
<pre class="rouge highlight"><code data-lang="shell"><span class="nv">$ </span>kubectl describe svc ignite-service <span class="nt">-n</span> ignite
Name: ignite-service
Namespace: ignite
Labels: <span class="nv">app</span><span class="o">=</span>ignite
Annotations: &lt;none&gt;
Selector: <span class="nv">app</span><span class="o">=</span>ignite
Type: LoadBalancer
IP: 10.0.144.19
LoadBalancer Ingress: 13.86.186.145
Port: rest 8080/TCP
TargetPort: 8080/TCP
NodePort: rest 31912/TCP
Endpoints: 10.244.1.5:8080
Port: thinclients 10800/TCP
TargetPort: 10800/TCP
NodePort: thinclients 31345/TCP
Endpoints: 10.244.1.5:10800
Session Affinity: None
External Traffic Policy: Cluster</code></pre>
</div>
</div>
<div class="paragraph">
<p>You can use the <code>LoadBalancer Ingress</code> address to connect to one of the open ports.
The ports are also listed in the output of the command.</p>
</div>
<div class="sect2">
<h3 id="connecting-client-nodes">Connecting Client Nodes</h3>
<div class="paragraph">
<p>A client node requires connection to every node in the cluster. The only way to achieve this is to start a client node within Kubernetes.
You will need to configure the discovery mechanism to use <code>TcpDiscoveryKubernetesIpFinder</code>, as described in the <a href="#creating-configmap-for-node-configuration-file">Creating ConfigMap for Node Configuration File</a> section.</p>
</div>
</div>
<div class="sect2">
<h3 id="connecting-with-thin-clients">Connecting with Thin Clients</h3>
<div class="paragraph">
<p>The following code snippet illustrates how to connect to your cluster using the <a href="/docs/latest/thin-clients/java-thin-client">java thin client</a>. You can use other thin clients in the same way.
Note that we use the external IP address (LoadBalancer Ingress) of the service.</p>
</div>
<div class="listingblock">
<div class="content">
<pre class="rouge highlight"><code data-lang="java"><span class="nc">ClientConfiguration</span> <span class="n">cfg</span> <span class="o">=</span> <span class="k">new</span> <span class="nc">ClientConfiguration</span><span class="o">().</span><span class="na">setAddresses</span><span class="o">(</span><span class="s">"13.86.186.145:10800"</span><span class="o">);</span>
<span class="nc">IgniteClient</span> <span class="n">client</span> <span class="o">=</span> <span class="nc">Ignition</span><span class="o">.</span><span class="na">startClient</span><span class="o">(</span><span class="n">cfg</span><span class="o">);</span>
<span class="nc">ClientCache</span><span class="o">&lt;</span><span class="nc">Integer</span><span class="o">,</span> <span class="nc">String</span><span class="o">&gt;</span> <span class="n">cache</span> <span class="o">=</span> <span class="n">client</span><span class="o">.</span><span class="na">getOrCreateCache</span><span class="o">(</span><span class="s">"test_cache"</span><span class="o">);</span>
<span class="n">cache</span><span class="o">.</span><span class="na">put</span><span class="o">(</span><span class="mi">1</span><span class="o">,</span> <span class="s">"first test value"</span><span class="o">);</span>
<span class="nc">System</span><span class="o">.</span><span class="na">out</span><span class="o">.</span><span class="na">println</span><span class="o">(</span><span class="n">cache</span><span class="o">.</span><span class="na">get</span><span class="o">(</span><span class="mi">1</span><span class="o">));</span>
<span class="n">client</span><span class="o">.</span><span class="na">close</span><span class="o">();</span></code></pre>
</div>
</div>
</div>
<div class="sect2">
<h3 id="connecting-to-rest-api">Connecting to REST API</h3>
<div class="paragraph">
<p>Connect to the cluster&#8217;s REST API as follows:</p>
</div>
<div class="listingblock">
<div class="content">
<pre class="rouge highlight"><code data-lang="shell"><span class="nv">$ </span>curl http://13.86.186.145:8080/ignite?cmd<span class="o">=</span>version
<span class="o">{</span><span class="s2">"successStatus"</span>:0,<span class="s2">"error"</span>:null,<span class="s2">"response"</span>:<span class="s2">"2.11.0"</span>,<span class="s2">"sessionToken"</span>:null<span class="o">}</span></code></pre>
</div>
</div>
</div>
</div>
</div>
<div class="sect1">
<h2 id="partition-awareness">Partition Awareness</h2>
<div class="sectionbody">
<div class="paragraph">
<p>Partition awareness allows the thin client to send query requests directly to the node that owns the queried data.</p>
</div>
<div class="paragraph">
<p>Without partition awareness, an application that is connected to the cluster via a thin client executes all queries and operations via a single server node that acts as a proxy for the incoming requests.
These operations are then re-routed to the node that stores the data that is being requested.
This results in a bottleneck that could prevent the application from scaling linearly.</p>
</div>
<div class="imageblock">
<div class="content">
<img src="/docs/2.11.0/images/partitionawareness01.png" alt="Without Partition Awareness">
</div>
</div>
<div class="paragraph">
<p>Notice how queries must pass through the proxy server node, where they are routed to the correct node.</p>
</div>
<div class="paragraph">
<p>With partition awareness in place, the thin client can directly route queries and operations to the primary nodes that own the data required for the queries.
This eliminates the bottleneck, allowing the application to scale more easily.</p>
</div>
<div class="imageblock">
<div class="content">
<img src="/docs/2.11.0/images/partitionawareness02.png" alt="With Partition Awareness">
</div>
</div>
<div class="paragraph">
<p>To enable the partition awareness feature within scaling Kubernetes enviroment, one should start a client within the cluster and configure it with <code>KubernetesConnectionConfiguration</code>.
In this case, a client can connect to every pod in a cluster.</p>
</div>
<div class="listingblock">
<div class="content">
<pre class="rouge highlight"><code data-lang="java"><span class="nc">KubernetesConnectionConfiguration</span> <span class="n">kcfg</span> <span class="o">=</span> <span class="k">new</span> <span class="nc">KubernetesConnectionConfiguration</span><span class="o">();</span>
<span class="n">kcfg</span><span class="o">.</span><span class="na">setNamespace</span><span class="o">(</span><span class="s">"ignite"</span><span class="o">);</span>
<span class="n">kcfg</span><span class="o">.</span><span class="na">setServiceName</span><span class="o">(</span><span class="s">"ignite-service"</span><span class="o">);</span>
<span class="nc">ClientConfiguration</span> <span class="n">ccfg</span> <span class="o">=</span> <span class="k">new</span> <span class="nc">ClientConfiguration</span><span class="o">();</span>
<span class="n">ccfg</span><span class="o">.</span><span class="na">setAddressesFinder</span><span class="o">(</span><span class="k">new</span> <span class="nc">ThinClientKubernetesAddressFinder</span><span class="o">(</span><span class="n">kcfg</span><span class="o">));</span>
<span class="nc">IgniteClient</span> <span class="n">client</span> <span class="o">=</span> <span class="nc">Ignition</span><span class="o">.</span><span class="na">startClient</span><span class="o">(</span><span class="n">cfg</span><span class="o">);</span>
<span class="nc">ClientCache</span><span class="o">&lt;</span><span class="nc">Integer</span><span class="o">,</span> <span class="nc">String</span><span class="o">&gt;</span> <span class="n">cache</span> <span class="o">=</span> <span class="n">client</span><span class="o">.</span><span class="na">getOrCreateCache</span><span class="o">(</span><span class="s">"test_cache"</span><span class="o">);</span>
<span class="n">cache</span><span class="o">.</span><span class="na">put</span><span class="o">(</span><span class="mi">1</span><span class="o">,</span> <span class="s">"first test value"</span><span class="o">);</span>
<span class="nc">System</span><span class="o">.</span><span class="na">out</span><span class="o">.</span><span class="na">println</span><span class="o">(</span><span class="n">cache</span><span class="o">.</span><span class="na">get</span><span class="o">(</span><span class="mi">1</span><span class="o">));</span>
<span class="n">client</span><span class="o">.</span><span class="na">close</span><span class="o">();</span></code></pre>
</div>
</div>
</div>
</div>
<div class="copyright">
© 2021 The Apache Software Foundation.<br/>
Apache, Apache Ignite, the Apache feather and the Apache Ignite logo are either registered trademarks or trademarks of The Apache Software Foundation.
</div>
</article>
<nav class="right-nav" data-swiftype-index='false'>
<div class="toc-wrapper">
<ul class="sectlevel1">
<li><a href="#creating-an-amazon-eks-cluster">Creating an Amazon EKS Cluster</a></li>
<li><a href="#kubernetes-configuration">Kubernetes Configuration</a>
<ul class="sectlevel2">
<li><a href="#creating-namespace">Creating Namespace</a></li>
<li><a href="#creating-service">Creating Service</a></li>
<li><a href="#creating-cluster-role-and-service-account">Creating Cluster Role and Service Account</a></li>
<li><a href="#creating-configmap-for-node-configuration-file">Creating ConfigMap for Node Configuration File</a></li>
<li><a href="#creating-pod-configuration">Creating Pod Configuration</a></li>
</ul>
</li>
<li><a href="#activating-the-cluster">Activating the Cluster</a></li>
<li><a href="#scaling-the-cluster">Scaling the Cluster</a></li>
<li><a href="#connecting-to-the-cluster">Connecting to the Cluster</a>
<ul class="sectlevel2">
<li><a href="#connecting-client-nodes">Connecting Client Nodes</a></li>
<li><a href="#connecting-with-thin-clients">Connecting with Thin Clients</a></li>
<li><a href="#connecting-to-rest-api">Connecting to REST API</a></li>
</ul>
</li>
<li><a href="#partition-awareness">Partition Awareness</a></li>
</ul>
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