<!DOCTYPE html><html lang="en"><head><meta charset="utf-8"></meta><title>PutUDP</title><link rel="stylesheet" href="../../../../../css/component-usage.css" type="text/css"></link></head><script type="text/javascript">window.onload = function(){if(self==top) { document.getElementById('nameHeader').style.display = "inherit"; } }</script><body><h1 id="nameHeader" style="display: none;">PutUDP</h1><h2>Description: </h2><p>The PutUDP processor receives a FlowFile and packages the FlowFile content into a single UDP datagram packet which is then transmitted to the configured UDP server. The user must ensure that the FlowFile content being fed to this processor is not larger than the maximum size for the underlying UDP transport. The maximum transport size will vary based on the platform setup but is generally just under 64KB. FlowFiles will be marked as failed if their content is larger than the maximum transport size.</p><h3>Tags: </h3><p>remote, egress, put, udp</p><h3>Properties: </h3><p>In the list below, the names of required properties appear in <strong>bold</strong>. Any other properties (not in bold) are considered optional. The table also indicates any default values, and whether a property supports the <a href="../../../../../html/expression-language-guide.html">NiFi Expression Language</a>.</p><table id="properties"><tr><th>Display Name</th><th>API Name</th><th>Default Value</th><th>Allowable Values</th><th>Description</th></tr><tr><td id="name"><strong>Hostname</strong></td><td>Hostname</td><td id="default-value">localhost</td><td id="allowable-values"></td><td id="description">The ip address or hostname of the destination.<br/><strong>Supports Expression Language: true (will be evaluated using variable registry only)</strong></td></tr><tr><td id="name"><strong>Port</strong></td><td>Port</td><td></td><td id="allowable-values"></td><td id="description">The port on the destination.<br/><strong>Supports Expression Language: true (will be evaluated using variable registry only)</strong></td></tr><tr><td id="name"><strong>Max Size of Socket Send Buffer</strong></td><td>Max Size of Socket Send Buffer</td><td id="default-value">1 MB</td><td id="allowable-values"></td><td id="description">The maximum size of the socket send buffer that should be used. This is a suggestion to the Operating System to indicate how big the socket buffer should be. If this value is set too low, the buffer may fill up before the data can be read, and incoming data will be dropped.</td></tr><tr><td id="name"><strong>Idle Connection Expiration</strong></td><td>Idle Connection Expiration</td><td id="default-value">15 seconds</td><td id="allowable-values"></td><td id="description">The amount of time a connection should be held open without being used before closing the connection. A value of 0 seconds will disable this feature.<br/><strong>Supports Expression Language: true (will be evaluated using variable registry only)</strong></td></tr><tr><td id="name">Timeout</td><td>Timeout</td><td id="default-value">10 seconds</td><td id="allowable-values"></td><td id="description">The timeout for connecting to and communicating with the destination. Does not apply to UDP<br/><strong>Supports Expression Language: true (will be evaluated using variable registry only)</strong></td></tr></table><h3>Relationships: </h3><table id="relationships"><tr><th>Name</th><th>Description</th></tr><tr><td>success</td><td>FlowFiles that are sent successfully to the destination are sent out this relationship.</td></tr><tr><td>failure</td><td>FlowFiles that failed to send to the destination are sent out this relationship.</td></tr></table><h3>Reads Attributes: </h3>None specified.<h3>Writes Attributes: </h3>None specified.<h3>State management: </h3>This component does not store state.<h3>Restricted: </h3>This component is not restricted.<h3>Input requirement: </h3>This component requires an incoming relationship.<h3>System Resource Considerations:</h3>None specified.<h3>See Also:</h3><p><a href="../org.apache.nifi.processors.standard.ListenUDP/index.html">ListenUDP</a>, <a href="../org.apache.nifi.processors.standard.PutTCP/index.html">PutTCP</a></p></body></html>