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<a href="/docs/latest/persistence/snapshot-directory"
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<a href="/docs/latest/persistence/disk-compression"
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<a href="/docs/latest/persistence/persistence-tuning"
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<a href="/docs/latest/snapshots/snapshots" class='' >Cluster Snapshots</a>
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<a href="/docs/latest/configuring-caches/near-cache"
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<a href="/docs/latest/data-rebalancing" class='' >Data Rebalancing</a>
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<a href="/docs/latest/data-streaming" class='' >Data Streaming</a>
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<a href="/docs/latest/key-value-api/transactions" class='' >Performing Transactions</a>
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<li><a href="/docs/latest/machine-learning/binary-classification/multilayer-perceptron" class=''>Multilayer Perceptron</a></li>
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<li><a href="/docs/latest/machine-learning/binary-classification/ann" class=''>ANN (Approximate Nearest Neighbor)</a></li>
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<li><a href="/docs/latest/machine-learning/regression/decision-trees-regression" class=''>Decision Trees Regression</a></li>
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<li>
<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/baggin" class=''>Bagging</a></li>
<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>
<li>
<a href="/docs/latest/key-value-api/continuous-queries" class='' >Using Continuous Queries</a>
</li>
<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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<a href="/docs/latest/data-structures/id-generator"
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<a href="/docs/latest/distributed-locks" class='' >Distributed Locks</a>
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<a href="/docs/latest/restapi" class='' >REST API</a>
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<article data-swiftype-index='true'>
<a class='edit-link' href="https://github.com/apache/ignite/tree/IGNITE-7595/docs/_docs/clustering/tcp-ip-discovery.adoc" target="_blank">Edit</a>
<h1>TCP/IP Discovery</h1>
<div id="preamble">
<div class="sectionbody">
<div class="paragraph">
<p>In an Ignite cluster, nodes can discover each other by using <code>DiscoverySpi</code>.
Ignite provides <code>TcpDiscoverySpi</code> as a default implementation of <code>DiscoverySpi</code> that uses TCP/IP for node discovery.
Discovery SPI can be configured for Multicast and Static IP based node
discovery.</p>
</div>
</div>
</div>
<div class="sect1">
<h2 id="multicast-ip-finder">Multicast IP Finder</h2>
<div class="sectionbody">
<div class="paragraph">
<p><code>TcpDiscoveryMulticastIpFinder</code> uses Multicast to discover other nodes
and is the default IP finder. Here is an example of how to configure
this finder via a Spring XML file or programmatically:</p>
</div>
<code-tabs><code-tab data-tab='XML'><div class="listingblock">
<div class="content">
<pre class="rouge highlight"><code data-lang="xml"><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.multicast.TcpDiscoveryMulticastIpFinder"</span><span class="nt">&gt;</span>
<span class="nt">&lt;property</span> <span class="na">name=</span><span class="s">"multicastGroup"</span> <span class="na">value=</span><span class="s">"228.10.10.157"</span><span class="nt">/&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></code></pre>
</div>
</div></code-tab><code-tab data-tab='Java'><div class="listingblock">
<div class="content">
<pre class="rouge highlight"><code data-lang="java"><span class="nc">TcpDiscoverySpi</span> <span class="n">spi</span> <span class="o">=</span> <span class="k">new</span> <span class="nc">TcpDiscoverySpi</span><span class="o">();</span>
<span class="nc">TcpDiscoveryMulticastIpFinder</span> <span class="n">ipFinder</span> <span class="o">=</span> <span class="k">new</span> <span class="nc">TcpDiscoveryMulticastIpFinder</span><span class="o">();</span>
<span class="n">ipFinder</span><span class="o">.</span><span class="na">setMulticastGroup</span><span class="o">(</span><span class="s">"228.10.10.157"</span><span class="o">);</span>
<span class="n">spi</span><span class="o">.</span><span class="na">setIpFinder</span><span class="o">(</span><span class="n">ipFinder</span><span class="o">);</span>
<span class="nc">IgniteConfiguration</span> <span class="n">cfg</span> <span class="o">=</span> <span class="k">new</span> <span class="nc">IgniteConfiguration</span><span class="o">();</span>
<span class="c1">// Override default discovery SPI.</span>
<span class="n">cfg</span><span class="o">.</span><span class="na">setDiscoverySpi</span><span class="o">(</span><span class="n">spi</span><span class="o">);</span>
<span class="c1">// Start the node.</span>
<span class="nc">Ignite</span> <span class="n">ignite</span> <span class="o">=</span> <span class="nc">Ignition</span><span class="o">.</span><span class="na">start</span><span class="o">(</span><span class="n">cfg</span><span class="o">);</span></code></pre>
</div>
</div></code-tab><code-tab data-tab='C#/.NET'><div class="listingblock">
<div class="content">
<pre class="rouge highlight"><code data-lang="csharp"><span class="kt">var</span> <span class="n">cfg</span> <span class="p">=</span> <span class="k">new</span> <span class="n">IgniteConfiguration</span>
<span class="p">{</span>
<span class="n">DiscoverySpi</span> <span class="p">=</span> <span class="k">new</span> <span class="n">TcpDiscoverySpi</span>
<span class="p">{</span>
<span class="n">IpFinder</span> <span class="p">=</span> <span class="k">new</span> <span class="n">TcpDiscoveryMulticastIpFinder</span>
<span class="p">{</span>
<span class="n">MulticastGroup</span> <span class="p">=</span> <span class="s">"228.10.10.157"</span>
<span class="p">}</span>
<span class="p">}</span>
<span class="p">};</span>
<span class="n">Ignition</span><span class="p">.</span><span class="nf">Start</span><span class="p">(</span><span class="n">cfg</span><span class="p">);</span></code></pre>
</div>
</div></code-tab><code-tab data-tab='C++' data-unavailable='true'><div class="listingblock">
<div class="content">
<pre class="rouge highlight"><code>This API is not presently available for C++. You can use XML configuration.</code></pre>
</div>
</div></code-tab></code-tabs>
</div>
</div>
<div class="sect1">
<h2 id="static-ip-finder">Static IP Finder</h2>
<div class="sectionbody">
<div class="paragraph">
<p>Static IP Finder, implemented in <code>TcpDiscoveryVmIpFinder</code>, allows you to specify a set of IP addresses and ports that will be checked for node discovery.</p>
</div>
<div class="paragraph">
<p>You are only required to provide at least one IP address of a remote
node, but usually it is advisable to provide 2 or 3 addresses of
nodes that you plan to start in the future. Once a
connection to any of the provided IP addresses is established, Ignite automatically discovers all other nodes.</p>
</div>
<div class="admonitionblock tip">
<table>
<tr>
<td class="icon">
<div class="title">Tip</div>
</td>
<td class="content">
<div class="paragraph">
<p>Instead of specifying addresses in the configuration, you can specify them in
the <code>IGNITE_TCP_DISCOVERY_ADDRESSES</code> environment variable or in the system property
with the same name. Addresses should be comma separated and may optionally contain
a port range.</p>
</div>
</td>
</tr>
</table>
</div>
<div class="admonitionblock tip">
<table>
<tr>
<td class="icon">
<div class="title">Tip</div>
</td>
<td class="content">
<div class="paragraph">
<p>By default, the <code>TcpDiscoveryVmIpFinder</code> is used in the 'non-shared' mode.
If you plan to start a server node, then in this mode the list of IP addresses should contain the address of the local node as well. In this case, the node will not wait until other nodes join the cluster; instead, it will become the first cluster node and start to operate normally.</p>
</div>
</td>
</tr>
</table>
</div>
<div class="paragraph">
<p>You can configure the static IP finder via XML configuration or programmatically:</p>
</div>
<code-tabs><code-tab data-tab='XML'><div class="listingblock">
<div class="content">
<pre class="rouge highlight"><code data-lang="xml"><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.vm.TcpDiscoveryVmIpFinder"</span><span class="nt">&gt;</span>
<span class="nt">&lt;property</span> <span class="na">name=</span><span class="s">"addresses"</span><span class="nt">&gt;</span>
<span class="nt">&lt;list&gt;</span>
<span class="c">&lt;!--
Explicitly specifying address of a local node to let it start and
operate normally even if there is no more nodes in the cluster.
You can also optionally specify an individual port or port range.
--&gt;</span>
<span class="nt">&lt;value&gt;</span>1.2.3.4<span class="nt">&lt;/value&gt;</span>
<span class="c">&lt;!--
IP Address and optional port range of a remote node.
You can also optionally specify an individual port.
--&gt;</span>
<span class="nt">&lt;value&gt;</span>1.2.3.5:47500..47509<span class="nt">&lt;/value&gt;</span>
<span class="nt">&lt;/list&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;/property&gt;</span>
<span class="nt">&lt;/bean&gt;</span></code></pre>
</div>
</div></code-tab><code-tab data-tab='Java'><div class="listingblock">
<div class="content">
<pre class="rouge highlight"><code data-lang="java"><span class="nc">TcpDiscoverySpi</span> <span class="n">spi</span> <span class="o">=</span> <span class="k">new</span> <span class="nc">TcpDiscoverySpi</span><span class="o">();</span>
<span class="nc">TcpDiscoveryVmIpFinder</span> <span class="n">ipFinder</span> <span class="o">=</span> <span class="k">new</span> <span class="nc">TcpDiscoveryVmIpFinder</span><span class="o">();</span>
<span class="c1">// Set initial IP addresses.</span>
<span class="c1">// Note that you can optionally specify a port or a port range.</span>
<span class="n">ipFinder</span><span class="o">.</span><span class="na">setAddresses</span><span class="o">(</span><span class="nc">Arrays</span><span class="o">.</span><span class="na">asList</span><span class="o">(</span><span class="s">"1.2.3.4"</span><span class="o">,</span> <span class="s">"1.2.3.5:47500..47509"</span><span class="o">));</span>
<span class="n">spi</span><span class="o">.</span><span class="na">setIpFinder</span><span class="o">(</span><span class="n">ipFinder</span><span class="o">);</span>
<span class="nc">IgniteConfiguration</span> <span class="n">cfg</span> <span class="o">=</span> <span class="k">new</span> <span class="nc">IgniteConfiguration</span><span class="o">();</span>
<span class="c1">// Override default discovery SPI.</span>
<span class="n">cfg</span><span class="o">.</span><span class="na">setDiscoverySpi</span><span class="o">(</span><span class="n">spi</span><span class="o">);</span>
<span class="c1">// Start a node.</span>
<span class="nc">Ignite</span> <span class="n">ignite</span> <span class="o">=</span> <span class="nc">Ignition</span><span class="o">.</span><span class="na">start</span><span class="o">(</span><span class="n">cfg</span><span class="o">);</span></code></pre>
</div>
</div></code-tab><code-tab data-tab='C#/.NET'><div class="listingblock">
<div class="content">
<pre class="rouge highlight"><code data-lang="csharp"><span class="kt">var</span> <span class="n">cfg</span> <span class="p">=</span> <span class="k">new</span> <span class="n">IgniteConfiguration</span>
<span class="p">{</span>
<span class="n">DiscoverySpi</span> <span class="p">=</span> <span class="k">new</span> <span class="n">TcpDiscoverySpi</span>
<span class="p">{</span>
<span class="n">IpFinder</span> <span class="p">=</span> <span class="k">new</span> <span class="n">TcpDiscoveryStaticIpFinder</span>
<span class="p">{</span>
<span class="n">Endpoints</span> <span class="p">=</span> <span class="k">new</span><span class="p">[]</span> <span class="p">{</span><span class="s">"1.2.3.4"</span><span class="p">,</span> <span class="s">"1.2.3.5:47500..47509"</span> <span class="p">}</span>
<span class="p">}</span>
<span class="p">}</span>
<span class="p">};</span></code></pre>
</div>
</div></code-tab><code-tab data-tab='Shell'><div class="listingblock">
<div class="content">
<pre class="rouge highlight"><code data-lang="shell"><span class="c"># The configuration should use TcpDiscoveryVmIpFinder without addresses specified:</span>
<span class="nv">IGNITE_TCP_DISCOVERY_ADDRESSES</span><span class="o">=</span>1.2.3.4,1.2.3.5:47500..47509 bin/ignite.sh <span class="nt">-v</span> config/default-config.xml</code></pre>
</div>
</div></code-tab></code-tabs>
<div class="admonitionblock warning">
<table>
<tr>
<td class="icon">
<div class="title">Warning</div>
</td>
<td class="content">
<div class="paragraph">
<p>Provide multiple node addresses only if you are sure that those are reachable. The unreachable addresses increase the
time it takes for the nodes to join the cluster. Let&#8217;s say you set five IP addresses, and nobody listens for incoming
connections on two addresses out of five. If Ignite starts connecting to the cluster via those two unreachable addresses,
it will impact the node&#8217;s startup time.</p>
</div>
</td>
</tr>
</table>
</div>
</div>
</div>
<div class="sect1">
<h2 id="multicast-and-static-ip-finder">Multicast and Static IP Finder</h2>
<div class="sectionbody">
<div class="paragraph">
<p>You can use both Multicast and Static IP based discovery together. In
this case, in addition to any addresses received via multicast,
<code>TcpDiscoveryMulticastIpFinder</code> can also work with a pre-configured list
of static IP addresses, just like Static IP-Based Discovery described
above. Here is an example of how to configure Multicast IP finder with
static IP addresses:</p>
</div>
<code-tabs><code-tab data-tab='XML'><div class="listingblock">
<div class="content">
<pre class="rouge highlight"><code data-lang="xml"><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.multicast.TcpDiscoveryMulticastIpFinder"</span><span class="nt">&gt;</span>
<span class="nt">&lt;property</span> <span class="na">name=</span><span class="s">"multicastGroup"</span> <span class="na">value=</span><span class="s">"228.10.10.157"</span><span class="nt">/&gt;</span>
<span class="c">&lt;!-- list of static IP addresses--&gt;</span>
<span class="nt">&lt;property</span> <span class="na">name=</span><span class="s">"addresses"</span><span class="nt">&gt;</span>
<span class="nt">&lt;list&gt;</span>
<span class="nt">&lt;value&gt;</span>1.2.3.4<span class="nt">&lt;/value&gt;</span>
<span class="c">&lt;!--
IP Address and optional port range.
You can also optionally specify an individual port.
--&gt;</span>
<span class="nt">&lt;value&gt;</span>1.2.3.5:47500..47509<span class="nt">&lt;/value&gt;</span>
<span class="nt">&lt;/list&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;/property&gt;</span>
<span class="nt">&lt;/bean&gt;</span></code></pre>
</div>
</div></code-tab><code-tab data-tab='Java'><div class="listingblock">
<div class="content">
<pre class="rouge highlight"><code data-lang="java"><span class="nc">TcpDiscoverySpi</span> <span class="n">spi</span> <span class="o">=</span> <span class="k">new</span> <span class="nc">TcpDiscoverySpi</span><span class="o">();</span>
<span class="nc">TcpDiscoveryMulticastIpFinder</span> <span class="n">ipFinder</span> <span class="o">=</span> <span class="k">new</span> <span class="nc">TcpDiscoveryMulticastIpFinder</span><span class="o">();</span>
<span class="c1">// Set Multicast group.</span>
<span class="n">ipFinder</span><span class="o">.</span><span class="na">setMulticastGroup</span><span class="o">(</span><span class="s">"228.10.10.157"</span><span class="o">);</span>
<span class="c1">// Set initial IP addresses.</span>
<span class="c1">// Note that you can optionally specify a port or a port range.</span>
<span class="n">ipFinder</span><span class="o">.</span><span class="na">setAddresses</span><span class="o">(</span><span class="nc">Arrays</span><span class="o">.</span><span class="na">asList</span><span class="o">(</span><span class="s">"1.2.3.4"</span><span class="o">,</span> <span class="s">"1.2.3.5:47500..47509"</span><span class="o">));</span>
<span class="n">spi</span><span class="o">.</span><span class="na">setIpFinder</span><span class="o">(</span><span class="n">ipFinder</span><span class="o">);</span>
<span class="nc">IgniteConfiguration</span> <span class="n">cfg</span> <span class="o">=</span> <span class="k">new</span> <span class="nc">IgniteConfiguration</span><span class="o">();</span>
<span class="c1">// Override default discovery SPI.</span>
<span class="n">cfg</span><span class="o">.</span><span class="na">setDiscoverySpi</span><span class="o">(</span><span class="n">spi</span><span class="o">);</span>
<span class="c1">// Start a node.</span>
<span class="nc">Ignite</span> <span class="n">ignite</span> <span class="o">=</span> <span class="nc">Ignition</span><span class="o">.</span><span class="na">start</span><span class="o">(</span><span class="n">cfg</span><span class="o">);</span></code></pre>
</div>
</div></code-tab><code-tab data-tab='C#/.NET'><div class="listingblock">
<div class="content">
<pre class="rouge highlight"><code data-lang="csharp"><span class="kt">var</span> <span class="n">cfg</span> <span class="p">=</span> <span class="k">new</span> <span class="n">IgniteConfiguration</span>
<span class="p">{</span>
<span class="n">DiscoverySpi</span> <span class="p">=</span> <span class="k">new</span> <span class="n">TcpDiscoverySpi</span>
<span class="p">{</span>
<span class="n">IpFinder</span> <span class="p">=</span> <span class="k">new</span> <span class="n">TcpDiscoveryMulticastIpFinder</span>
<span class="p">{</span>
<span class="n">MulticastGroup</span> <span class="p">=</span> <span class="s">"228.10.10.157"</span><span class="p">,</span>
<span class="n">Endpoints</span> <span class="p">=</span> <span class="k">new</span><span class="p">[]</span> <span class="p">{</span><span class="s">"1.2.3.4"</span><span class="p">,</span> <span class="s">"1.2.3.5:47500..47509"</span> <span class="p">}</span>
<span class="p">}</span>
<span class="p">}</span>
<span class="p">};</span>
<span class="n">Ignition</span><span class="p">.</span><span class="nf">Start</span><span class="p">(</span><span class="n">cfg</span><span class="p">);</span></code></pre>
</div>
</div></code-tab><code-tab data-tab='C++' data-unavailable='true'><div class="listingblock">
<div class="content">
<pre class="rouge highlight"><code>This API is not presently available for C++. You can use XML configuration.</code></pre>
</div>
</div></code-tab></code-tabs>
</div>
</div>
<div class="sect1">
<h2 id="isolated-clusters-on-same-set-of-machines">Isolated Clusters on Same Set of Machines</h2>
<div class="sectionbody">
<div class="paragraph">
<p>Ignite allows you to start two isolated clusters on the same set of
machines. This can be done if nodes from different clusters use non-intersecting local port ranges for <code>TcpDiscoverySpi</code> and <code>TcpCommunicationSpi</code>.</p>
</div>
<div class="paragraph">
<p>Let’s say you need to start two isolated clusters on a single machine
for testing purposes. For the nodes from the first cluster, you
should use the following <code>TcpDiscoverySpi</code> and <code>TcpCommunicationSpi</code>
configurations:</p>
</div>
<code-tabs><code-tab data-tab='XML'><div class="listingblock">
<div class="content">
<pre class="rouge highlight"><code data-lang="xml"><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="c">&lt;!--
Explicitly configure TCP discovery SPI to provide list of
initial nodes from the first cluster.
--&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="c">&lt;!-- Initial local port to listen to. --&gt;</span>
<span class="nt">&lt;property</span> <span class="na">name=</span><span class="s">"localPort"</span> <span class="na">value=</span><span class="s">"48500"</span><span class="nt">/&gt;</span>
<span class="c">&lt;!-- Changing local port range. This is an optional action. --&gt;</span>
<span class="nt">&lt;property</span> <span class="na">name=</span><span class="s">"localPortRange"</span> <span class="na">value=</span><span class="s">"20"</span><span class="nt">/&gt;</span>
<span class="c">&lt;!-- Setting up IP finder for this cluster --&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.vm.TcpDiscoveryVmIpFinder"</span><span class="nt">&gt;</span>
<span class="nt">&lt;property</span> <span class="na">name=</span><span class="s">"addresses"</span><span class="nt">&gt;</span>
<span class="nt">&lt;list&gt;</span>
<span class="c">&lt;!--
Addresses and port range of nodes from
the first cluster.
127.0.0.1 can be replaced with actual IP addresses
or host names. Port range is optional.
--&gt;</span>
<span class="nt">&lt;value&gt;</span>127.0.0.1:48500..48520<span class="nt">&lt;/value&gt;</span>
<span class="nt">&lt;/list&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;/property&gt;</span>
<span class="c">&lt;!--
Explicitly configure TCP communication SPI changing local
port number for the nodes from the first cluster.
--&gt;</span>
<span class="nt">&lt;property</span> <span class="na">name=</span><span class="s">"communicationSpi"</span><span class="nt">&gt;</span>
<span class="nt">&lt;bean</span> <span class="na">class=</span><span class="s">"org.apache.ignite.spi.communication.tcp.TcpCommunicationSpi"</span><span class="nt">&gt;</span>
<span class="nt">&lt;property</span> <span class="na">name=</span><span class="s">"localPort"</span> <span class="na">value=</span><span class="s">"48100"</span><span class="nt">/&gt;</span>
<span class="nt">&lt;/bean&gt;</span>
<span class="nt">&lt;/property&gt;</span>
<span class="nt">&lt;/bean&gt;</span></code></pre>
</div>
</div></code-tab><code-tab data-tab='Java'><div class="listingblock">
<div class="content">
<pre class="rouge highlight"><code data-lang="java"><span class="nc">IgniteConfiguration</span> <span class="n">firstCfg</span> <span class="o">=</span> <span class="k">new</span> <span class="nc">IgniteConfiguration</span><span class="o">();</span>
<span class="n">firstCfg</span><span class="o">.</span><span class="na">setIgniteInstanceName</span><span class="o">(</span><span class="s">"first"</span><span class="o">);</span>
<span class="c1">// Explicitly configure TCP discovery SPI to provide list of initial nodes</span>
<span class="c1">// from the first cluster.</span>
<span class="nc">TcpDiscoverySpi</span> <span class="n">firstDiscoverySpi</span> <span class="o">=</span> <span class="k">new</span> <span class="nc">TcpDiscoverySpi</span><span class="o">();</span>
<span class="c1">// Initial local port to listen to.</span>
<span class="n">firstDiscoverySpi</span><span class="o">.</span><span class="na">setLocalPort</span><span class="o">(</span><span class="mi">48500</span><span class="o">);</span>
<span class="c1">// Changing local port range. This is an optional action.</span>
<span class="n">firstDiscoverySpi</span><span class="o">.</span><span class="na">setLocalPortRange</span><span class="o">(</span><span class="mi">20</span><span class="o">);</span>
<span class="nc">TcpDiscoveryVmIpFinder</span> <span class="n">firstIpFinder</span> <span class="o">=</span> <span class="k">new</span> <span class="nc">TcpDiscoveryVmIpFinder</span><span class="o">();</span>
<span class="c1">// Addresses and port range of the nodes from the first cluster.</span>
<span class="c1">// 127.0.0.1 can be replaced with actual IP addresses or host names.</span>
<span class="c1">// The port range is optional.</span>
<span class="n">firstIpFinder</span><span class="o">.</span><span class="na">setAddresses</span><span class="o">(</span><span class="nc">Collections</span><span class="o">.</span><span class="na">singletonList</span><span class="o">(</span><span class="s">"127.0.0.1:48500..48520"</span><span class="o">));</span>
<span class="c1">// Overriding IP finder.</span>
<span class="n">firstDiscoverySpi</span><span class="o">.</span><span class="na">setIpFinder</span><span class="o">(</span><span class="n">firstIpFinder</span><span class="o">);</span>
<span class="c1">// Explicitly configure TCP communication SPI by changing local port number for</span>
<span class="c1">// the nodes from the first cluster.</span>
<span class="nc">TcpCommunicationSpi</span> <span class="n">firstCommSpi</span> <span class="o">=</span> <span class="k">new</span> <span class="nc">TcpCommunicationSpi</span><span class="o">();</span>
<span class="n">firstCommSpi</span><span class="o">.</span><span class="na">setLocalPort</span><span class="o">(</span><span class="mi">48100</span><span class="o">);</span>
<span class="c1">// Overriding discovery SPI.</span>
<span class="n">firstCfg</span><span class="o">.</span><span class="na">setDiscoverySpi</span><span class="o">(</span><span class="n">firstDiscoverySpi</span><span class="o">);</span>
<span class="c1">// Overriding communication SPI.</span>
<span class="n">firstCfg</span><span class="o">.</span><span class="na">setCommunicationSpi</span><span class="o">(</span><span class="n">firstCommSpi</span><span class="o">);</span>
<span class="c1">// Starting a node.</span>
<span class="nc">Ignition</span><span class="o">.</span><span class="na">start</span><span class="o">(</span><span class="n">firstCfg</span><span class="o">);</span></code></pre>
</div>
</div></code-tab><code-tab data-tab='C#/.NET'><div class="listingblock">
<div class="content">
<pre class="rouge highlight"><code data-lang="csharp"><span class="kt">var</span> <span class="n">firstCfg</span> <span class="p">=</span> <span class="k">new</span> <span class="n">IgniteConfiguration</span>
<span class="p">{</span>
<span class="n">IgniteInstanceName</span> <span class="p">=</span> <span class="s">"first"</span><span class="p">,</span>
<span class="n">DiscoverySpi</span> <span class="p">=</span> <span class="k">new</span> <span class="n">TcpDiscoverySpi</span>
<span class="p">{</span>
<span class="n">LocalPort</span> <span class="p">=</span> <span class="m">48500</span><span class="p">,</span>
<span class="n">LocalPortRange</span> <span class="p">=</span> <span class="m">20</span><span class="p">,</span>
<span class="n">IpFinder</span> <span class="p">=</span> <span class="k">new</span> <span class="n">TcpDiscoveryStaticIpFinder</span>
<span class="p">{</span>
<span class="n">Endpoints</span> <span class="p">=</span> <span class="k">new</span><span class="p">[]</span>
<span class="p">{</span>
<span class="s">"127.0.0.1:48500..48520"</span>
<span class="p">}</span>
<span class="p">}</span>
<span class="p">},</span>
<span class="n">CommunicationSpi</span> <span class="p">=</span> <span class="k">new</span> <span class="n">TcpCommunicationSpi</span>
<span class="p">{</span>
<span class="n">LocalPort</span> <span class="p">=</span> <span class="m">48100</span>
<span class="p">}</span>
<span class="p">};</span>
<span class="n">Ignition</span><span class="p">.</span><span class="nf">Start</span><span class="p">(</span><span class="n">firstCfg</span><span class="p">);</span></code></pre>
</div>
</div></code-tab><code-tab data-tab='C++' data-unavailable='true'><div class="listingblock">
<div class="content">
<pre class="rouge highlight"><code>This API is not presently available for C++. You can use XML configuration.</code></pre>
</div>
</div></code-tab></code-tabs>
<div class="paragraph">
<p>For the nodes from the second cluster, the configuration might look like
this:</p>
</div>
<code-tabs><code-tab data-tab='XML'><div class="listingblock">
<div class="content">
<pre class="rouge highlight"><code data-lang="xml"><span class="nt">&lt;bean</span> <span class="na">id=</span><span class="s">"ignite.cfg"</span> <span class="na">class=</span><span class="s">"org.apache.ignite.configuration.IgniteConfiguration"</span><span class="nt">&gt;</span>
<span class="c">&lt;!--
Explicitly configure TCP discovery SPI to provide list of initial
nodes from the second cluster.
--&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="c">&lt;!-- Initial local port to listen to. --&gt;</span>
<span class="nt">&lt;property</span> <span class="na">name=</span><span class="s">"localPort"</span> <span class="na">value=</span><span class="s">"49500"</span><span class="nt">/&gt;</span>
<span class="c">&lt;!-- Changing local port range. This is an optional action. --&gt;</span>
<span class="nt">&lt;property</span> <span class="na">name=</span><span class="s">"localPortRange"</span> <span class="na">value=</span><span class="s">"20"</span><span class="nt">/&gt;</span>
<span class="c">&lt;!-- Setting up IP finder for this cluster --&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.vm.TcpDiscoveryVmIpFinder"</span><span class="nt">&gt;</span>
<span class="nt">&lt;property</span> <span class="na">name=</span><span class="s">"addresses"</span><span class="nt">&gt;</span>
<span class="nt">&lt;list&gt;</span>
<span class="c">&lt;!--
Addresses and port range of the nodes from the second cluster.
127.0.0.1 can be replaced with actual IP addresses or host names. Port range is optional.
--&gt;</span>
<span class="nt">&lt;value&gt;</span>127.0.0.1:49500..49520<span class="nt">&lt;/value&gt;</span>
<span class="nt">&lt;/list&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;/property&gt;</span>
<span class="c">&lt;!--
Explicitly configure TCP communication SPI changing local port number
for the nodes from the second cluster.
--&gt;</span>
<span class="nt">&lt;property</span> <span class="na">name=</span><span class="s">"communicationSpi"</span><span class="nt">&gt;</span>
<span class="nt">&lt;bean</span> <span class="na">class=</span><span class="s">"org.apache.ignite.spi.communication.tcp.TcpCommunicationSpi"</span><span class="nt">&gt;</span>
<span class="nt">&lt;property</span> <span class="na">name=</span><span class="s">"localPort"</span> <span class="na">value=</span><span class="s">"49100"</span><span class="nt">/&gt;</span>
<span class="nt">&lt;/bean&gt;</span>
<span class="nt">&lt;/property&gt;</span>
<span class="nt">&lt;/bean&gt;</span></code></pre>
</div>
</div></code-tab><code-tab data-tab='Java'><div class="listingblock">
<div class="content">
<pre class="rouge highlight"><code data-lang="java"><span class="nc">IgniteConfiguration</span> <span class="n">secondCfg</span> <span class="o">=</span> <span class="k">new</span> <span class="nc">IgniteConfiguration</span><span class="o">();</span>
<span class="n">secondCfg</span><span class="o">.</span><span class="na">setIgniteInstanceName</span><span class="o">(</span><span class="s">"second"</span><span class="o">);</span>
<span class="c1">// Explicitly configure TCP discovery SPI to provide list of initial nodes</span>
<span class="c1">// from the second cluster.</span>
<span class="nc">TcpDiscoverySpi</span> <span class="n">secondDiscoverySpi</span> <span class="o">=</span> <span class="k">new</span> <span class="nc">TcpDiscoverySpi</span><span class="o">();</span>
<span class="c1">// Initial local port to listen to.</span>
<span class="n">secondDiscoverySpi</span><span class="o">.</span><span class="na">setLocalPort</span><span class="o">(</span><span class="mi">49500</span><span class="o">);</span>
<span class="c1">// Changing local port range. This is an optional action.</span>
<span class="n">secondDiscoverySpi</span><span class="o">.</span><span class="na">setLocalPortRange</span><span class="o">(</span><span class="mi">20</span><span class="o">);</span>
<span class="nc">TcpDiscoveryVmIpFinder</span> <span class="n">secondIpFinder</span> <span class="o">=</span> <span class="k">new</span> <span class="nc">TcpDiscoveryVmIpFinder</span><span class="o">();</span>
<span class="c1">// Addresses and port range of the nodes from the second cluster.</span>
<span class="c1">// 127.0.0.1 can be replaced with actual IP addresses or host names.</span>
<span class="c1">// The port range is optional.</span>
<span class="n">secondIpFinder</span><span class="o">.</span><span class="na">setAddresses</span><span class="o">(</span><span class="nc">Collections</span><span class="o">.</span><span class="na">singletonList</span><span class="o">(</span><span class="s">"127.0.0.1:49500..49520"</span><span class="o">));</span>
<span class="c1">// Overriding IP finder.</span>
<span class="n">secondDiscoverySpi</span><span class="o">.</span><span class="na">setIpFinder</span><span class="o">(</span><span class="n">secondIpFinder</span><span class="o">);</span>
<span class="c1">// Explicitly configure TCP communication SPI by changing local port number for</span>
<span class="c1">// the nodes from the second cluster.</span>
<span class="nc">TcpCommunicationSpi</span> <span class="n">secondCommSpi</span> <span class="o">=</span> <span class="k">new</span> <span class="nc">TcpCommunicationSpi</span><span class="o">();</span>
<span class="n">secondCommSpi</span><span class="o">.</span><span class="na">setLocalPort</span><span class="o">(</span><span class="mi">49100</span><span class="o">);</span>
<span class="c1">// Overriding discovery SPI.</span>
<span class="n">secondCfg</span><span class="o">.</span><span class="na">setDiscoverySpi</span><span class="o">(</span><span class="n">secondDiscoverySpi</span><span class="o">);</span>
<span class="c1">// Overriding communication SPI.</span>
<span class="n">secondCfg</span><span class="o">.</span><span class="na">setCommunicationSpi</span><span class="o">(</span><span class="n">secondCommSpi</span><span class="o">);</span>
<span class="c1">// Starting a node.</span>
<span class="nc">Ignition</span><span class="o">.</span><span class="na">start</span><span class="o">(</span><span class="n">secondCfg</span><span class="o">);</span></code></pre>
</div>
</div></code-tab><code-tab data-tab='C#/.NET'><div class="listingblock">
<div class="content">
<pre class="rouge highlight"><code data-lang="csharp"><span class="kt">var</span> <span class="n">secondCfg</span> <span class="p">=</span> <span class="k">new</span> <span class="n">IgniteConfiguration</span>
<span class="p">{</span>
<span class="n">IgniteInstanceName</span> <span class="p">=</span> <span class="s">"second"</span><span class="p">,</span>
<span class="n">DiscoverySpi</span> <span class="p">=</span> <span class="k">new</span> <span class="n">TcpDiscoverySpi</span>
<span class="p">{</span>
<span class="n">LocalPort</span> <span class="p">=</span> <span class="m">49500</span><span class="p">,</span>
<span class="n">LocalPortRange</span> <span class="p">=</span> <span class="m">20</span><span class="p">,</span>
<span class="n">IpFinder</span> <span class="p">=</span> <span class="k">new</span> <span class="n">TcpDiscoveryStaticIpFinder</span>
<span class="p">{</span>
<span class="n">Endpoints</span> <span class="p">=</span> <span class="k">new</span><span class="p">[]</span>
<span class="p">{</span>
<span class="s">"127.0.0.1:49500..49520"</span>
<span class="p">}</span>
<span class="p">}</span>
<span class="p">},</span>
<span class="n">CommunicationSpi</span> <span class="p">=</span> <span class="k">new</span> <span class="n">TcpCommunicationSpi</span>
<span class="p">{</span>
<span class="n">LocalPort</span> <span class="p">=</span> <span class="m">49100</span>
<span class="p">}</span>
<span class="p">};</span>
<span class="n">Ignition</span><span class="p">.</span><span class="nf">Start</span><span class="p">(</span><span class="n">secondCfg</span><span class="p">);</span></code></pre>
</div>
</div></code-tab><code-tab data-tab='C++' data-unavailable='true'><div class="listingblock">
<div class="content">
<pre class="rouge highlight"><code>This API is not presently available for C++. You can use XML configuration.</code></pre>
</div>
</div></code-tab></code-tabs>
<div class="paragraph">
<p>As you can see from the configurations, the difference between them is minor — only port numbers for SPIs and IP finder vary.</p>
</div>
<div class="admonitionblock tip">
<table>
<tr>
<td class="icon">
<div class="title">Tip</div>
</td>
<td class="content">
<div class="paragraph">
<p>If you want the nodes from different clusters to be able to look for
each other using the multicast protocol, replace
<code>TcpDiscoveryVmIpFinder</code> with <code>TcpDiscoveryMulticastIpFinder</code> and set
unique <code>TcpDiscoveryMulticastIpFinder.multicastGroups</code> in each
configuration above.</p>
</div>
</td>
</tr>
</table>
</div>
<div class="admonitionblock caution">
<table>
<tr>
<td class="icon">
<div class="title">Caution</div>
</td>
<td class="content">
<h3 id="persistence-files-location" class="discrete">Persistence Files Location</h3>
<div class="paragraph">
<p>If the isolated clusters use Native Persistence, then every
cluster has to store its persistence files under different paths in the
file system. Refer to the <a href="/docs/latest/persistence/native-persistence">Native Persistence documentation</a> to learn how you can change persistence related directories.</p>
</div>
</td>
</tr>
</table>
</div>
</div>
</div>
<div class="sect1">
<h2 id="jdbc-based-ip-finder">JDBC-Based IP Finder</h2>
<div class="sectionbody">
<div class="admonitionblock note">
<table>
<tr>
<td class="icon">
<div class="title">Note</div>
</td>
<td class="content">
Not supported in .NET/C#/C&#43;&#43;.
</td>
</tr>
</table>
</div>
<div class="paragraph">
<p>You can have your database be a common shared storage of initial IP addresses. With this IP finder, nodes will write their IP addresses to a database on startup. This is done via <code>TcpDiscoveryJdbcIpFinder</code>.</p>
</div>
<code-tabs><code-tab data-tab='XML'><div class="listingblock">
<div class="content">
<pre class="rouge highlight"><code data-lang="xml"><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.jdbc.TcpDiscoveryJdbcIpFinder"</span><span class="nt">&gt;</span>
<span class="nt">&lt;property</span> <span class="na">name=</span><span class="s">"dataSource"</span> <span class="na">ref=</span><span class="s">"ds"</span><span class="nt">/&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="c">&lt;!-- Configured data source instance. --&gt;</span>
<span class="nt">&lt;bean</span> <span class="na">id=</span><span class="s">"ds"</span> <span class="na">class=</span><span class="s">"some.Datasource"</span><span class="nt">&gt;</span>
<span class="nt">&lt;/bean&gt;</span></code></pre>
</div>
</div></code-tab><code-tab data-tab='Java'><div class="listingblock">
<div class="content">
<pre class="rouge highlight"><code data-lang="java"><span class="nc">TcpDiscoverySpi</span> <span class="n">spi</span> <span class="o">=</span> <span class="k">new</span> <span class="nc">TcpDiscoverySpi</span><span class="o">();</span>
<span class="c1">// Configure your DataSource.</span>
<span class="nc">DataSource</span> <span class="n">someDs</span> <span class="o">=</span> <span class="k">new</span> <span class="nc">MySampleDataSource</span><span class="o">();</span>
<span class="nc">TcpDiscoveryJdbcIpFinder</span> <span class="n">ipFinder</span> <span class="o">=</span> <span class="k">new</span> <span class="nc">TcpDiscoveryJdbcIpFinder</span><span class="o">();</span>
<span class="n">ipFinder</span><span class="o">.</span><span class="na">setDataSource</span><span class="o">(</span><span class="n">someDs</span><span class="o">);</span>
<span class="n">spi</span><span class="o">.</span><span class="na">setIpFinder</span><span class="o">(</span><span class="n">ipFinder</span><span class="o">);</span>
<span class="nc">IgniteConfiguration</span> <span class="n">cfg</span> <span class="o">=</span> <span class="k">new</span> <span class="nc">IgniteConfiguration</span><span class="o">();</span>
<span class="c1">// Override default discovery SPI.</span>
<span class="n">cfg</span><span class="o">.</span><span class="na">setDiscoverySpi</span><span class="o">(</span><span class="n">spi</span><span class="o">);</span>
<span class="c1">// Start the node.</span>
<span class="nc">Ignite</span> <span class="n">ignite</span> <span class="o">=</span> <span class="nc">Ignition</span><span class="o">.</span><span class="na">start</span><span class="o">(</span><span class="n">cfg</span><span class="o">);</span></code></pre>
</div>
</div></code-tab><code-tab data-tab='C#/.NET' data-unavailable='true'><div class="listingblock">
<div class="content">
<pre class="rouge highlight"><code>This API is not presently available for C#/.NET. You can use XML configuration.</code></pre>
</div>
</div></code-tab><code-tab data-tab='C++' data-unavailable='true'><div class="listingblock">
<div class="content">
<pre class="rouge highlight"><code>This API is not presently available for C++. You can use XML configuration.</code></pre>
</div>
</div></code-tab></code-tabs>
</div>
</div>
<div class="sect1">
<h2 id="shared-file-system-ip-finder">Shared File System IP Finder</h2>
<div class="sectionbody">
<div class="admonitionblock note">
<table>
<tr>
<td class="icon">
<div class="title">Note</div>
</td>
<td class="content">
Not supported in .NET/C#/C&#43;&#43;.
</td>
</tr>
</table>
</div>
<div class="paragraph">
<p>A shared file system can be used as a storage for nodes' IP addresses. The nodes will write their IP addresses to the file system on startup. This behavior is supported by <code>TcpDiscoverySharedFsIpFinder</code>.</p>
</div>
<code-tabs><code-tab data-tab='XML'><div class="listingblock">
<div class="content">
<pre class="rouge highlight"><code data-lang="xml"><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.sharedfs.TcpDiscoverySharedFsIpFinder"</span><span class="nt">&gt;</span>
<span class="nt">&lt;property</span> <span class="na">name=</span><span class="s">"path"</span> <span class="na">value=</span><span class="s">"/var/ignite/addresses"</span><span class="nt">/&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></code></pre>
</div>
</div></code-tab><code-tab data-tab='Java'><div class="listingblock">
<div class="content">
<pre class="rouge highlight"><code data-lang="java"><span class="c1">// Configuring discovery SPI.</span>
<span class="nc">TcpDiscoverySpi</span> <span class="n">spi</span> <span class="o">=</span> <span class="k">new</span> <span class="nc">TcpDiscoverySpi</span><span class="o">();</span>
<span class="c1">// Configuring IP finder.</span>
<span class="nc">TcpDiscoverySharedFsIpFinder</span> <span class="n">ipFinder</span> <span class="o">=</span> <span class="k">new</span> <span class="nc">TcpDiscoverySharedFsIpFinder</span><span class="o">();</span>
<span class="n">ipFinder</span><span class="o">.</span><span class="na">setPath</span><span class="o">(</span><span class="s">"/var/ignite/addresses"</span><span class="o">);</span>
<span class="n">spi</span><span class="o">.</span><span class="na">setIpFinder</span><span class="o">(</span><span class="n">ipFinder</span><span class="o">);</span>
<span class="nc">IgniteConfiguration</span> <span class="n">cfg</span> <span class="o">=</span> <span class="k">new</span> <span class="nc">IgniteConfiguration</span><span class="o">();</span>
<span class="c1">// Override default discovery SPI.</span>
<span class="n">cfg</span><span class="o">.</span><span class="na">setDiscoverySpi</span><span class="o">(</span><span class="n">spi</span><span class="o">);</span>
<span class="c1">// Start the node.</span>
<span class="nc">Ignite</span> <span class="n">ignite</span> <span class="o">=</span> <span class="nc">Ignition</span><span class="o">.</span><span class="na">start</span><span class="o">(</span><span class="n">cfg</span><span class="o">);</span></code></pre>
</div>
</div></code-tab><code-tab data-tab='C#/.NET' data-unavailable='true'><div class="listingblock">
<div class="content">
<pre class="rouge highlight"><code>This API is not presently available for C#/.NET. You can use XML configuration.</code></pre>
</div>
</div></code-tab><code-tab data-tab='C++' data-unavailable='true'><div class="listingblock">
<div class="content">
<pre class="rouge highlight"><code>This API is not presently available for C++. You can use XML configuration.</code></pre>
</div>
</div></code-tab></code-tabs>
</div>
</div>
<div class="sect1">
<h2 id="zookeeper-ip-finder">ZooKeeper IP Finder</h2>
<div class="sectionbody">
<div class="admonitionblock note">
<table>
<tr>
<td class="icon">
<div class="title">Note</div>
</td>
<td class="content">
Not supported in .NET/C#.
</td>
</tr>
</table>
</div>
<div class="paragraph">
<p>To set up ZooKeeper IP finder use <code>TcpDiscoveryZookeeperIpFinder</code> (note that <code>ignite-zookeeper</code> module has to be enabled).</p>
</div>
<code-tabs><code-tab data-tab='XML'><div class="listingblock">
<div class="content">
<pre class="rouge highlight"><code data-lang="xml"><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.zk.TcpDiscoveryZookeeperIpFinder"</span><span class="nt">&gt;</span>
<span class="nt">&lt;property</span> <span class="na">name=</span><span class="s">"zkConnectionString"</span> <span class="na">value=</span><span class="s">"127.0.0.1:2181"</span><span class="nt">/&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></code></pre>
</div>
</div></code-tab><code-tab data-tab='Java'><div class="listingblock">
<div class="content">
<pre class="rouge highlight"><code data-lang="java"><span class="nc">TcpDiscoverySpi</span> <span class="n">spi</span> <span class="o">=</span> <span class="k">new</span> <span class="nc">TcpDiscoverySpi</span><span class="o">();</span>
<span class="nc">TcpDiscoveryZookeeperIpFinder</span> <span class="n">ipFinder</span> <span class="o">=</span> <span class="k">new</span> <span class="nc">TcpDiscoveryZookeeperIpFinder</span><span class="o">();</span>
<span class="c1">// Specify ZooKeeper connection string.</span>
<span class="n">ipFinder</span><span class="o">.</span><span class="na">setZkConnectionString</span><span class="o">(</span><span class="s">"127.0.0.1:2181"</span><span class="o">);</span>
<span class="n">spi</span><span class="o">.</span><span class="na">setIpFinder</span><span class="o">(</span><span class="n">ipFinder</span><span class="o">);</span>
<span class="nc">IgniteConfiguration</span> <span class="n">cfg</span> <span class="o">=</span> <span class="k">new</span> <span class="nc">IgniteConfiguration</span><span class="o">();</span>
<span class="c1">// Override default discovery SPI.</span>
<span class="n">cfg</span><span class="o">.</span><span class="na">setDiscoverySpi</span><span class="o">(</span><span class="n">spi</span><span class="o">);</span>
<span class="c1">// Start the node.</span>
<span class="nc">Ignite</span> <span class="n">ignite</span> <span class="o">=</span> <span class="nc">Ignition</span><span class="o">.</span><span class="na">start</span><span class="o">(</span><span class="n">cfg</span><span class="o">);</span></code></pre>
</div>
</div></code-tab><code-tab data-tab='C#/.NET' data-unavailable='true'><div class="listingblock">
<div class="content">
<pre class="rouge highlight"><code>This API is not presently available for C#/.NET. You can use XML configuration.</code></pre>
</div>
</div></code-tab><code-tab data-tab='C++' data-unavailable='true'><div class="listingblock">
<div class="content">
<pre class="rouge highlight"><code>This API is not presently available for C++. You can use XML configuration.</code></pre>
</div>
</div></code-tab></code-tabs>
</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="#multicast-ip-finder">Multicast IP Finder</a></li>
<li><a href="#static-ip-finder">Static IP Finder</a></li>
<li><a href="#multicast-and-static-ip-finder">Multicast and Static IP Finder</a></li>
<li><a href="#isolated-clusters-on-same-set-of-machines">Isolated Clusters on Same Set of Machines</a></li>
<li><a href="#jdbc-based-ip-finder">JDBC-Based IP Finder</a></li>
<li><a href="#shared-file-system-ip-finder">Shared File System IP Finder</a></li>
<li><a href="#zookeeper-ip-finder">ZooKeeper IP Finder</a></li>
</ul>
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