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Posted to commits@nifi.apache.org by al...@apache.org on 2018/07/17 01:35:44 UTC
svn commit: r1836075 [31/39] - in /nifi/site/trunk/docs/nifi-docs: ./
components/org.apache.nifi/nifi-ambari-nar/1.7.1/
components/org.apache.nifi/nifi-ambari-nar/1.7.1/org.apache.nifi.reporting.ambari.AmbariReportingTask/
components/org.apache.nifi/ni...
Added: nifi/site/trunk/docs/nifi-docs/components/org.apache.nifi/nifi-standard-nar/1.7.1/org.apache.nifi.processors.standard.ListenHTTP/index.html
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+++ nifi/site/trunk/docs/nifi-docs/components/org.apache.nifi/nifi-standard-nar/1.7.1/org.apache.nifi.processors.standard.ListenHTTP/index.html Tue Jul 17 01:35:38 2018
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+<!DOCTYPE html><html lang="en"><head><meta charset="utf-8"></meta><title>ListenHTTP</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;">ListenHTTP</h1><h2>Description: </h2><p>Starts an HTTP Server and listens on a given base path to transform incoming requests into FlowFiles. The default URI of the Service will be http://{hostname}:{port}/contentListener. Only HEAD and POST requests are supported. GET, PUT, and DELETE will result in an error and the HTTP response status code 405.</p><h3>Tags: </h3><p>ingest, http, https, rest, listen</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 d
efault values, and whether a property supports the <a href="../../../../../html/expression-language-guide.html">NiFi Expression Language</a>.</p><table id="properties"><tr><th>Name</th><th>Default Value</th><th>Allowable Values</th><th>Description</th></tr><tr><td id="name"><strong>Base Path</strong></td><td id="default-value">contentListener</td><td id="allowable-values"></td><td id="description">Base path for incoming connections<br/><strong>Supports Expression Language: true (will be evaluated using variable registry only)</strong></td></tr><tr><td id="name"><strong>Listening Port</strong></td><td id="default-value"></td><td id="allowable-values"></td><td id="description">The Port to listen on for incoming connections<br/><strong>Supports Expression Language: true (will be evaluated using variable registry only)</strong></td></tr><tr><td id="name">Max Data to Receive per Second</td><td id="default-value"></td><td id="allowable-values"></td><td id="description">The maximum amount
of data to receive per second; this allows the bandwidth to be throttled to a specified data rate; if not specified, the data rate is not throttled</td></tr><tr><td id="name">SSL Context Service</td><td id="default-value"></td><td id="allowable-values"><strong>Controller Service API: </strong><br/>RestrictedSSLContextService<br/><strong>Implementation: </strong><a href="../../../nifi-ssl-context-service-nar/1.7.1/org.apache.nifi.ssl.StandardRestrictedSSLContextService/index.html">StandardRestrictedSSLContextService</a></td><td id="description">The Controller Service to use in order to obtain an SSL Context</td></tr><tr><td id="name"><strong>Authorized DN Pattern</strong></td><td id="default-value">.*</td><td id="allowable-values"></td><td id="description">A Regular Expression to apply against the Distinguished Name of incoming connections. If the Pattern does not match the DN, the connection will be refused.</td></tr><tr><td id="name"><strong>Max Unconfirmed Flowfile Time</strong></
td><td id="default-value">60 secs</td><td id="allowable-values"></td><td id="description">The maximum amount of time to wait for a FlowFile to be confirmed before it is removed from the cache</td></tr><tr><td id="name">HTTP Headers to receive as Attributes (Regex)</td><td id="default-value"></td><td id="allowable-values"></td><td id="description">Specifies the Regular Expression that determines the names of HTTP Headers that should be passed along as FlowFile attributes</td></tr><tr><td id="name">Return Code</td><td id="default-value">200</td><td id="allowable-values"></td><td id="description">The HTTP return code returned after every HTTP call</td></tr></table><h3>Relationships: </h3><table id="relationships"><tr><th>Name</th><th>Description</th></tr><tr><td>success</td><td>Relationship for successfully received FlowFiles</td></tr></table><h3>Reads Attributes: </h3>None specified.<h3>Writes Attributes: </h3>None specified.<h3>State management: </h3>This component does not store sta
te.<h3>Restricted: </h3>This component is not restricted.<h3>Input requirement: </h3>This component does not allow an incoming relationship.<h3>System Resource Considerations:</h3>None specified.</body></html>
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+++ nifi/site/trunk/docs/nifi-docs/components/org.apache.nifi/nifi-standard-nar/1.7.1/org.apache.nifi.processors.standard.ListenRELP/index.html Tue Jul 17 01:35:38 2018
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+<!DOCTYPE html><html lang="en"><head><meta charset="utf-8"></meta><title>ListenRELP</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;">ListenRELP</h1><h2>Description: </h2><p>Listens for RELP messages being sent to a given port over TCP. Each message will be acknowledged after successfully writing the message to a FlowFile. Each FlowFile will contain data portion of one or more RELP frames. In the case where the RELP frames contain syslog messages, the output of this processor can be sent to a ParseSyslog processor for further processing.</p><h3>Tags: </h3><p>listen, relp, tcp, logs</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 c
onsidered 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>Name</th><th>Default Value</th><th>Allowable Values</th><th>Description</th></tr><tr><td id="name">Local Network Interface</td><td id="default-value"></td><td id="allowable-values"></td><td id="description">The name of a local network interface to be used to restrict listening to a specific LAN.<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 id="default-value"></td><td id="allowable-values"></td><td id="description">The port to listen on for communication.<br/><strong>Supports Expression Language: true (will be evaluated using variable registry only)</strong></td></tr><tr><td id="name"><strong>Receive Buffer Size</strong></td><td id="default-value"
>65507 B</td><td id="allowable-values"></td><td id="description">The size of each buffer used to receive messages. Adjust this value appropriately based on the expected size of the incoming messages.</td></tr><tr><td id="name"><strong>Max Size of Message Queue</strong></td><td id="default-value">10000</td><td id="allowable-values"></td><td id="description">The maximum size of the internal queue used to buffer messages being transferred from the underlying channel to the processor. Setting this value higher allows more messages to be buffered in memory during surges of incoming messages, but increases the total memory used by the processor.</td></tr><tr><td id="name"><strong>Max Size of Socket Buffer</strong></td><td id="default-value">1 MB</td><td id="allowable-values"></td><td id="description">The maximum size of the socket 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 buff
er may fill up before the data can be read, and incoming data will be dropped.</td></tr><tr><td id="name"><strong>Character Set</strong></td><td id="default-value">UTF-8</td><td id="allowable-values"></td><td id="description">Specifies the character set of the received data.</td></tr><tr><td id="name"><strong>Max Batch Size</strong></td><td id="default-value">1</td><td id="allowable-values"></td><td id="description">The maximum number of messages to add to a single FlowFile. If multiple messages are available, they will be concatenated along with the <Message Delimiter> up to this configured maximum number of messages</td></tr><tr><td id="name"><strong>Batching Message Delimiter</strong></td><td id="default-value">\n</td><td id="allowable-values"></td><td id="description">Specifies the delimiter to place between messages when multiple messages are bundled together (see <Max Batch Size> property).</td></tr><tr><td id="name"><strong>Max Number of TCP Connections</strong></
td><td id="default-value">2</td><td id="allowable-values"></td><td id="description">The maximum number of concurrent TCP connections to accept.</td></tr><tr><td id="name">SSL Context Service</td><td id="default-value"></td><td id="allowable-values"><strong>Controller Service API: </strong><br/>RestrictedSSLContextService<br/><strong>Implementation: </strong><a href="../../../nifi-ssl-context-service-nar/1.7.1/org.apache.nifi.ssl.StandardRestrictedSSLContextService/index.html">StandardRestrictedSSLContextService</a></td><td id="description">The Controller Service to use in order to obtain an SSL Context. If this property is set, messages will be received over a secure connection.</td></tr><tr><td id="name">Client Auth</td><td id="default-value">REQUIRED</td><td id="allowable-values"><ul><li>WANT</li><li>REQUIRED</li><li>NONE</li></ul></td><td id="description">The client authentication policy to use for the SSL Context. Only used if an SSL Context Service is provided.</td></tr></table
><h3>Relationships: </h3><table id="relationships"><tr><th>Name</th><th>Description</th></tr><tr><td>success</td><td>Messages received successfully will be sent out this relationship.</td></tr></table><h3>Reads Attributes: </h3>None specified.<h3>Writes Attributes: </h3><table id="writes-attributes"><tr><th>Name</th><th>Description</th></tr><tr><td>relp.command</td><td>The command of the RELP frames.</td></tr><tr><td>relp.sender</td><td>The sending host of the messages.</td></tr><tr><td>relp.port</td><td>The sending port the messages were received over.</td></tr><tr><td>relp.txnr</td><td>The transaction number of the message. Only included if <Batch Size> is 1.</td></tr><tr><td>mime.type</td><td>The mime.type of the content which is text/plain</td></tr></table><h3>State management: </h3>This component does not store state.<h3>Restricted: </h3>This component is not restricted.<h3>Input requirement: </h3>This component does not allow an incoming relationship.<h3>System Resource
Considerations:</h3>None specified.<h3>See Also:</h3><p><a href="../org.apache.nifi.processors.standard.ParseSyslog/index.html">ParseSyslog</a></p></body></html>
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--- nifi/site/trunk/docs/nifi-docs/components/org.apache.nifi/nifi-standard-nar/1.7.1/org.apache.nifi.processors.standard.ListenSyslog/index.html (added)
+++ nifi/site/trunk/docs/nifi-docs/components/org.apache.nifi/nifi-standard-nar/1.7.1/org.apache.nifi.processors.standard.ListenSyslog/index.html Tue Jul 17 01:35:38 2018
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+<!DOCTYPE html><html lang="en"><head><meta charset="utf-8"></meta><title>ListenSyslog</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;">ListenSyslog</h1><h2>Description: </h2><p>Listens for Syslog messages being sent to a given port over TCP or UDP. Incoming messages are checked against regular expressions for RFC5424 and RFC3164 formatted messages. The format of each message is: (<PRIORITY>)(VERSION )(TIMESTAMP) (HOSTNAME) (BODY) where version is optional. The timestamp can be an RFC5424 timestamp with a format of "yyyy-MM-dd'T'HH:mm:ss.SZ" or "yyyy-MM-dd'T'HH:mm:ss.S+hh:mm", or it can be an RFC3164 timestamp with a format of "MMM d HH:mm:ss". If an incoming messages matches one of these patterns, the message will be parsed
and the individual pieces will be placed in FlowFile attributes, with the original message in the content of the FlowFile. If an incoming message does not match one of these patterns it will not be parsed and the syslog.valid attribute will be set to false with the original message in the content of the FlowFile. Valid messages will be transferred on the success relationship, and invalid messages will be transferred on the invalid relationship.</p><h3>Tags: </h3><p>syslog, listen, udp, tcp, logs</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>Name</th><th>Default Value</th><th>Allowable Values</th><th>Description</th></tr><tr><td id="name"><strong>Protocol</s
trong></td><td id="default-value">UDP</td><td id="allowable-values"><ul><li>TCP</li><li>UDP</li></ul></td><td id="description">The protocol for Syslog communication.</td></tr><tr><td id="name"><strong>Port</strong></td><td id="default-value"></td><td id="allowable-values"></td><td id="description">The port for Syslog communication. Note that Expression language is not evaluated per FlowFile.<br/><strong>Supports Expression Language: true (will be evaluated using variable registry only)</strong></td></tr><tr><td id="name">Local Network Interface</td><td id="default-value"></td><td id="allowable-values"></td><td id="description">The name of a local network interface to be used to restrict listening to a specific LAN.<br/><strong>Supports Expression Language: true (will be evaluated using variable registry only)</strong></td></tr><tr><td id="name">SSL Context Service</td><td id="default-value"></td><td id="allowable-values"><strong>Controller Service API: </strong><br/>RestrictedSSLCon
textService<br/><strong>Implementation: </strong><a href="../../../nifi-ssl-context-service-nar/1.7.1/org.apache.nifi.ssl.StandardRestrictedSSLContextService/index.html">StandardRestrictedSSLContextService</a></td><td id="description">The Controller Service to use in order to obtain an SSL Context. If this property is set, syslog messages will be received over a secure connection.</td></tr><tr><td id="name">Client Auth</td><td id="default-value">REQUIRED</td><td id="allowable-values"><ul><li>WANT</li><li>REQUIRED</li><li>NONE</li></ul></td><td id="description">The client authentication policy to use for the SSL Context. Only used if an SSL Context Service is provided.</td></tr><tr><td id="name"><strong>Receive Buffer Size</strong></td><td id="default-value">65507 B</td><td id="allowable-values"></td><td id="description">The size of each buffer used to receive Syslog messages. Adjust this value appropriately based on the expected size of the incoming Syslog messages. When UDP is sele
cted each buffer will hold one Syslog message. When TCP is selected messages are read from an incoming connection until the buffer is full, or the connection is closed. </td></tr><tr><td id="name"><strong>Max Size of Message Queue</strong></td><td id="default-value">10000</td><td id="allowable-values"></td><td id="description">The maximum size of the internal queue used to buffer messages being transferred from the underlying channel to the processor. Setting this value higher allows more messages to be buffered in memory during surges of incoming messages, but increases the total memory used by the processor.</td></tr><tr><td id="name"><strong>Max Size of Socket Buffer</strong></td><td id="default-value">1 MB</td><td id="allowable-values"></td><td id="description">The maximum size of the socket 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>Max Number of TCP Connections</strong></td><td id="default-value">2</td><td id="allowable-values"></td><td id="description">The maximum number of concurrent connections to accept Syslog messages in TCP mode.</td></tr><tr><td id="name"><strong>Max Batch Size</strong></td><td id="default-value">1</td><td id="allowable-values"></td><td id="description">The maximum number of Syslog events to add to a single FlowFile. If multiple events are available, they will be concatenated along with the <Message Delimiter> up to this configured maximum number of messages</td></tr><tr><td id="name"><strong>Message Delimiter</strong></td><td id="default-value">\n</td><td id="allowable-values"></td><td id="description">Specifies the delimiter to place between Syslog messages when multiple messages are bundled together (see <Max Batch Size> property).</td></tr><tr><td id="name"><strong>Parse Messages</strong>
</td><td id="default-value">true</td><td id="allowable-values"><ul><li>true</li><li>false</li></ul></td><td id="description">Indicates if the processor should parse the Syslog messages. If set to false, each outgoing FlowFile will only contain the sender, protocol, and port, and no additional attributes.</td></tr><tr><td id="name"><strong>Character Set</strong></td><td id="default-value">UTF-8</td><td id="allowable-values"></td><td id="description">Specifies the character set of the Syslog messages. Note that Expression language is not evaluated per FlowFile.<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>Syslog messages that match one of the expected formats will be sent out this relationship as a FlowFile per message.</td></tr><tr><td>invalid</td><td>Syslog messages that do not match one of th
e expected formats will be sent out this relationship as a FlowFile per message.</td></tr></table><h3>Reads Attributes: </h3>None specified.<h3>Writes Attributes: </h3><table id="writes-attributes"><tr><th>Name</th><th>Description</th></tr><tr><td>syslog.priority</td><td>The priority of the Syslog message.</td></tr><tr><td>syslog.severity</td><td>The severity of the Syslog message derived from the priority.</td></tr><tr><td>syslog.facility</td><td>The facility of the Syslog message derived from the priority.</td></tr><tr><td>syslog.version</td><td>The optional version from the Syslog message.</td></tr><tr><td>syslog.timestamp</td><td>The timestamp of the Syslog message.</td></tr><tr><td>syslog.hostname</td><td>The hostname or IP address of the Syslog message.</td></tr><tr><td>syslog.sender</td><td>The hostname of the Syslog server that sent the message.</td></tr><tr><td>syslog.body</td><td>The body of the Syslog message, everything after the hostname.</td></tr><tr><td>syslog.valid</
td><td>An indicator of whether this message matched the expected formats. If this value is false, the other attributes will be empty and only the original message will be available in the content.</td></tr><tr><td>syslog.protocol</td><td>The protocol over which the Syslog message was received.</td></tr><tr><td>syslog.port</td><td>The port over which the Syslog message was received.</td></tr><tr><td>mime.type</td><td>The mime.type of the FlowFile which will be text/plain for Syslog messages.</td></tr></table><h3>State management: </h3>This component does not store state.<h3>Restricted: </h3>This component is not restricted.<h3>Input requirement: </h3>This component does not allow an incoming relationship.<h3>System Resource Considerations:</h3>None specified.<h3>See Also:</h3><p><a href="../org.apache.nifi.processors.standard.PutSyslog/index.html">PutSyslog</a>, <a href="../org.apache.nifi.processors.standard.ParseSyslog/index.html">ParseSyslog</a></p></body></html>
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+++ nifi/site/trunk/docs/nifi-docs/components/org.apache.nifi/nifi-standard-nar/1.7.1/org.apache.nifi.processors.standard.ListenTCP/index.html Tue Jul 17 01:35:38 2018
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+<!DOCTYPE html><html lang="en"><head><meta charset="utf-8"></meta><title>ListenTCP</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;">ListenTCP</h1><h2>Description: </h2><p>Listens for incoming TCP connections and reads data from each connection using a line separator as the message demarcator. The default behavior is for each message to produce a single FlowFile, however this can be controlled by increasing the Batch Size to a larger value for higher throughput. The Receive Buffer Size must be set as large as the largest messages expected to be received, meaning if every 100kb there is a line separator, then the Receive Buffer Size must be greater than 100kb.</p><h3>Tags: </h3><p>listen, tcp, tls, ssl</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>Name</th><th>Default Value</th><th>Allowable Values</th><th>Description</th></tr><tr><td id="name">Local Network Interface</td><td id="default-value"></td><td id="allowable-values"></td><td id="description">The name of a local network interface to be used to restrict listening to a specific LAN.<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 id="default-value"></td><td id="allowable-values"></td><td id="description">The port to listen on for communication.<br/><strong>Supports Expression Language: true (will be evaluated using v
ariable registry only)</strong></td></tr><tr><td id="name"><strong>Receive Buffer Size</strong></td><td id="default-value">65507 B</td><td id="allowable-values"></td><td id="description">The size of each buffer used to receive messages. Adjust this value appropriately based on the expected size of the incoming messages.</td></tr><tr><td id="name"><strong>Max Size of Message Queue</strong></td><td id="default-value">10000</td><td id="allowable-values"></td><td id="description">The maximum size of the internal queue used to buffer messages being transferred from the underlying channel to the processor. Setting this value higher allows more messages to be buffered in memory during surges of incoming messages, but increases the total memory used by the processor.</td></tr><tr><td id="name"><strong>Max Size of Socket Buffer</strong></td><td id="default-value">1 MB</td><td id="allowable-values"></td><td id="description">The maximum size of the socket 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>Character Set</strong></td><td id="default-value">UTF-8</td><td id="allowable-values"></td><td id="description">Specifies the character set of the received data.</td></tr><tr><td id="name"><strong>Max Batch Size</strong></td><td id="default-value">1</td><td id="allowable-values"></td><td id="description">The maximum number of messages to add to a single FlowFile. If multiple messages are available, they will be concatenated along with the <Message Delimiter> up to this configured maximum number of messages</td></tr><tr><td id="name"><strong>Batching Message Delimiter</strong></td><td id="default-value">\n</td><td id="allowable-values"></td><td id="description">Specifies the delimiter to place between messages when multiple messages are bundled t
ogether (see <Max Batch Size> property).</td></tr><tr><td id="name"><strong>Max Number of TCP Connections</strong></td><td id="default-value">2</td><td id="allowable-values"></td><td id="description">The maximum number of concurrent TCP connections to accept.</td></tr><tr><td id="name">SSL Context Service</td><td id="default-value"></td><td id="allowable-values"><strong>Controller Service API: </strong><br/>RestrictedSSLContextService<br/><strong>Implementation: </strong><a href="../../../nifi-ssl-context-service-nar/1.7.1/org.apache.nifi.ssl.StandardRestrictedSSLContextService/index.html">StandardRestrictedSSLContextService</a></td><td id="description">The Controller Service to use in order to obtain an SSL Context. If this property is set, messages will be received over a secure connection.</td></tr><tr><td id="name">Client Auth</td><td id="default-value">REQUIRED</td><td id="allowable-values"><ul><li>WANT</li><li>REQUIRED</li><li>NONE</li></ul></td><td id="description">The
client authentication policy to use for the SSL Context. Only used if an SSL Context Service is provided.</td></tr></table><h3>Relationships: </h3><table id="relationships"><tr><th>Name</th><th>Description</th></tr><tr><td>success</td><td>Messages received successfully will be sent out this relationship.</td></tr></table><h3>Reads Attributes: </h3>None specified.<h3>Writes Attributes: </h3><table id="writes-attributes"><tr><th>Name</th><th>Description</th></tr><tr><td>tcp.sender</td><td>The sending host of the messages.</td></tr><tr><td>tcp.port</td><td>The sending port the messages were received.</td></tr></table><h3>State management: </h3>This component does not store state.<h3>Restricted: </h3>This component is not restricted.<h3>Input requirement: </h3>This component does not allow an incoming relationship.<h3>System Resource Considerations:</h3>None specified.</body></html>
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+<!DOCTYPE html><html lang="en"><head><meta charset="utf-8"></meta><title>ListenTCPRecord</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;">ListenTCPRecord</h1><h2>Description: </h2><p>Listens for incoming TCP connections and reads data from each connection using a configured record reader, and writes the records to a flow file using a configured record writer. The type of record reader selected will determine how clients are expected to send data. For example, when using a Grok reader to read logs, a client can keep an open connection and continuously stream data, but when using an JSON reader, the client cannot send an array of JSON documents and then send another array on the same connection, as the reader would be in a bad state
at that point. Records will be read from the connection in blocking mode, and will timeout according to the Read Timeout specified in the processor. If the read times out, or if any other error is encountered when reading, the connection will be closed, and any records read up to that point will be handled according to the configured Read Error Strategy (Discard or Transfer). In cases where clients are keeping a connection open, the concurrent tasks for the processor should be adjusted to match the Max Number of TCP Connections allowed, so that there is a task processing each connection.</p><h3>Tags: </h3><p>listen, tcp, record, tls, ssl</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><ta
ble id="properties"><tr><th>Name</th><th>Default Value</th><th>Allowable Values</th><th>Description</th></tr><tr><td id="name">Local Network Interface</td><td id="default-value"></td><td id="allowable-values"></td><td id="description">The name of a local network interface to be used to restrict listening to a specific LAN.<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 id="default-value"></td><td id="allowable-values"></td><td id="description">The port to listen on for communication.<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 Buffer</strong></td><td id="default-value">1 MB</td><td id="allowable-values"></td><td id="description">The maximum size of the socket buffer that should be used. This is a suggestion to the Operating System to indicate how big the so
cket 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>Max Number of TCP Connections</strong></td><td id="default-value">2</td><td id="allowable-values"></td><td id="description">The maximum number of concurrent TCP connections to accept. In cases where clients are keeping a connection open, the concurrent tasks for the processor should be adjusted to match the Max Number of TCP Connections allowed, so that there is a task processing each connection.</td></tr><tr><td id="name"><strong>Read Timeout</strong></td><td id="default-value">10 seconds</td><td id="allowable-values"></td><td id="description">The amount of time to wait before timing out when reading from a connection.</td></tr><tr><td id="name"><strong>Record Reader</strong></td><td id="default-value"></td><td id="allowable-values"><strong>Controller Service API: </strong><br/>RecordReaderFactory<br/><strong>
Implementations: </strong><a href="../../../nifi-record-serialization-services-nar/1.7.1/org.apache.nifi.json.JsonTreeReader/index.html">JsonTreeReader</a><br/><a href="../../../nifi-record-serialization-services-nar/1.7.1/org.apache.nifi.avro.AvroReader/index.html">AvroReader</a><br/><a href="../../../nifi-record-serialization-services-nar/1.7.1/org.apache.nifi.csv.CSVReader/index.html">CSVReader</a><br/><a href="../../../nifi-record-serialization-services-nar/1.7.1/org.apache.nifi.xml.XMLReader/index.html">XMLReader</a><br/><a href="../../../nifi-record-serialization-services-nar/1.7.1/org.apache.nifi.json.JsonPathReader/index.html">JsonPathReader</a><br/><a href="../../../nifi-scripting-nar/1.7.1/org.apache.nifi.record.script.ScriptedReader/index.html">ScriptedReader</a><br/><a href="../../../nifi-record-serialization-services-nar/1.7.1/org.apache.nifi.grok.GrokReader/index.html">GrokReader</a></td><td id="description">The Record Reader to use for incoming FlowFiles</td></tr><tr>
<td id="name"><strong>Record Writer</strong></td><td id="default-value"></td><td id="allowable-values"><strong>Controller Service API: </strong><br/>RecordSetWriterFactory<br/><strong>Implementations: </strong><a href="../../../nifi-record-serialization-services-nar/1.7.1/org.apache.nifi.avro.AvroRecordSetWriter/index.html">AvroRecordSetWriter</a><br/><a href="../../../nifi-record-serialization-services-nar/1.7.1/org.apache.nifi.csv.CSVRecordSetWriter/index.html">CSVRecordSetWriter</a><br/><a href="../../../nifi-record-serialization-services-nar/1.7.1/org.apache.nifi.json.JsonRecordSetWriter/index.html">JsonRecordSetWriter</a><br/><a href="../../../nifi-scripting-nar/1.7.1/org.apache.nifi.record.script.ScriptedRecordSetWriter/index.html">ScriptedRecordSetWriter</a><br/><a href="../../../nifi-record-serialization-services-nar/1.7.1/org.apache.nifi.xml.XMLRecordSetWriter/index.html">XMLRecordSetWriter</a><br/><a href="../../../nifi-record-serialization-services-nar/1.7.1/org.apache.ni
fi.text.FreeFormTextRecordSetWriter/index.html">FreeFormTextRecordSetWriter</a></td><td id="description">The Record Writer to use in order to serialize the data before writing to a FlowFile</td></tr><tr><td id="name"><strong>Read Error Strategy</strong></td><td id="default-value">Transfer</td><td id="allowable-values"><ul><li>Transfer <img src="../../../../../html/images/iconInfo.png" alt="Transfers any records already received and closes the connection." title="Transfers any records already received and closes the connection."></img></li><li>Discard <img src="../../../../../html/images/iconInfo.png" alt="Discards any records already received and closes the connection." title="Discards any records already received and closes the connection."></img></li></ul></td><td id="description">Indicates how to deal with an error while reading the next record from a connection, when previous records have already been read from the connection.</td></tr><tr><td id="name"><strong>Record Batch Size
</strong></td><td id="default-value">1000</td><td id="allowable-values"></td><td id="description">The maximum number of records to write to a single FlowFile.</td></tr><tr><td id="name">SSL Context Service</td><td id="default-value"></td><td id="allowable-values"><strong>Controller Service API: </strong><br/>RestrictedSSLContextService<br/><strong>Implementation: </strong><a href="../../../nifi-ssl-context-service-nar/1.7.1/org.apache.nifi.ssl.StandardRestrictedSSLContextService/index.html">StandardRestrictedSSLContextService</a></td><td id="description">The Controller Service to use in order to obtain an SSL Context. If this property is set, messages will be received over a secure connection.</td></tr><tr><td id="name">Client Auth</td><td id="default-value">REQUIRED</td><td id="allowable-values"><ul><li>WANT</li><li>REQUIRED</li><li>NONE</li></ul></td><td id="description">The client authentication policy to use for the SSL Context. Only used if an SSL Context Service is provided.</
td></tr></table><h3>Relationships: </h3><table id="relationships"><tr><th>Name</th><th>Description</th></tr><tr><td>success</td><td>Messages received successfully will be sent out this relationship.</td></tr></table><h3>Reads Attributes: </h3>None specified.<h3>Writes Attributes: </h3><table id="writes-attributes"><tr><th>Name</th><th>Description</th></tr><tr><td>tcp.sender</td><td>The host that sent the data.</td></tr><tr><td>tcp.port</td><td>The port that the processor accepted the connection on.</td></tr><tr><td>record.count</td><td>The number of records written to the flow file.</td></tr><tr><td>mime.type</td><td>The mime-type of the writer used to write the records to the flow file.</td></tr></table><h3>State management: </h3>This component does not store state.<h3>Restricted: </h3>This component is not restricted.<h3>Input requirement: </h3>This component does not allow an incoming relationship.<h3>System Resource Considerations:</h3>None specified.</body></html>
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+<!DOCTYPE html><html lang="en"><head><meta charset="utf-8"></meta><title>ListenUDP</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;">ListenUDP</h1><h2>Description: </h2><p>Listens for Datagram Packets on a given port. The default behavior produces a FlowFile per datagram, however for higher throughput the Max Batch Size property may be increased to specify the number of datagrams to batch together in a single FlowFile. This processor can be restricted to listening for datagrams from a specific remote host and port by specifying the Sending Host and Sending Host Port properties, otherwise it will listen for datagrams from all hosts and ports.</p><h3>Tags: </h3><p>ingest, udp, listen, source</p><h3>Properties: </h3><p>In the list be
low, 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>Name</th><th>Default Value</th><th>Allowable Values</th><th>Description</th></tr><tr><td id="name">Local Network Interface</td><td id="default-value"></td><td id="allowable-values"></td><td id="description">The name of a local network interface to be used to restrict listening to a specific LAN.<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 id="default-value"></td><td id="allowable-values"></td><td id="description">The port to listen on for communication.<br/><strong>Supports Expression Language: true (will be evaluated using variable reg
istry only)</strong></td></tr><tr><td id="name"><strong>Receive Buffer Size</strong></td><td id="default-value">65507 B</td><td id="allowable-values"></td><td id="description">The size of each buffer used to receive messages. Adjust this value appropriately based on the expected size of the incoming messages.</td></tr><tr><td id="name"><strong>Max Size of Message Queue</strong></td><td id="default-value">10000</td><td id="allowable-values"></td><td id="description">The maximum size of the internal queue used to buffer messages being transferred from the underlying channel to the processor. Setting this value higher allows more messages to be buffered in memory during surges of incoming messages, but increases the total memory used by the processor.</td></tr><tr><td id="name"><strong>Max Size of Socket Buffer</strong></td><td id="default-value">1 MB</td><td id="allowable-values"></td><td id="description">The maximum size of the socket 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>Character Set</strong></td><td id="default-value">UTF-8</td><td id="allowable-values"></td><td id="description">Specifies the character set of the received data.</td></tr><tr><td id="name"><strong>Max Batch Size</strong></td><td id="default-value">1</td><td id="allowable-values"></td><td id="description">The maximum number of messages to add to a single FlowFile. If multiple messages are available, they will be concatenated along with the <Message Delimiter> up to this configured maximum number of messages</td></tr><tr><td id="name"><strong>Batching Message Delimiter</strong></td><td id="default-value">\n</td><td id="allowable-values"></td><td id="description">Specifies the delimiter to place between messages when multiple messages are bundled together (se
e <Max Batch Size> property).</td></tr><tr><td id="name">Sending Host</td><td id="default-value"></td><td id="allowable-values"></td><td id="description">IP, or name, of a remote host. Only Datagrams from the specified Sending Host Port and this host will be accepted. Improves Performance. May be a system property or an environment variable.<br/><strong>Supports Expression Language: true (will be evaluated using variable registry only)</strong></td></tr><tr><td id="name">Sending Host Port</td><td id="default-value"></td><td id="allowable-values"></td><td id="description">Port being used by remote host to send Datagrams. Only Datagrams from the specified Sending Host and this port will be accepted. Improves Performance. May be a system property or an environment variable.<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>Messages received successfully will be sent out this relationship.</td></tr></table><h3>Reads Attributes: </h3>None specified.<h3>Writes Attributes: </h3><table id="writes-attributes"><tr><th>Name</th><th>Description</th></tr><tr><td>udp.sender</td><td>The sending host of the messages.</td></tr><tr><td>udp.port</td><td>The sending port the messages were received.</td></tr></table><h3>State management: </h3>This component does not store state.<h3>Restricted: </h3>This component is not restricted.<h3>Input requirement: </h3>This component does not allow an incoming relationship.<h3>System Resource Considerations:</h3>None specified.</body></html>
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+<!DOCTYPE html><html lang="en"><head><meta charset="utf-8"></meta><title>ListenUDPRecord</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;">ListenUDPRecord</h1><h2>Description: </h2><p>Listens for Datagram Packets on a given port and reads the content of each datagram using the configured Record Reader. Each record will then be written to a flow file using the configured Record Writer. This processor can be restricted to listening for datagrams from a specific remote host and port by specifying the Sending Host and Sending Host Port properties, otherwise it will listen for datagrams from all hosts and ports.</p><h3>Tags: </h3><p>ingest, udp, listen, source, record</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>Name</th><th>Default Value</th><th>Allowable Values</th><th>Description</th></tr><tr><td id="name">Local Network Interface</td><td id="default-value"></td><td id="allowable-values"></td><td id="description">The name of a local network interface to be used to restrict listening to a specific LAN.<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 id="default-value"></td><td id="allowable-values"></td><td id="description">The port to listen on for communication.<br/><strong>Supports Expression Language: true (will be evaluated using variable registry only)</strong></td></
tr><tr><td id="name"><strong>Receive Buffer Size</strong></td><td id="default-value">65507 B</td><td id="allowable-values"></td><td id="description">The size of each buffer used to receive messages. Adjust this value appropriately based on the expected size of the incoming messages.</td></tr><tr><td id="name"><strong>Max Size of Message Queue</strong></td><td id="default-value">10000</td><td id="allowable-values"></td><td id="description">The maximum size of the internal queue used to buffer messages being transferred from the underlying channel to the processor. Setting this value higher allows more messages to be buffered in memory during surges of incoming messages, but increases the total memory used by the processor.</td></tr><tr><td id="name"><strong>Max Size of Socket Buffer</strong></td><td id="default-value">1 MB</td><td id="allowable-values"></td><td id="description">The maximum size of the socket 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>Character Set</strong></td><td id="default-value">UTF-8</td><td id="allowable-values"></td><td id="description">Specifies the character set of the received data.</td></tr><tr><td id="name"><strong>Poll Timeout</strong></td><td id="default-value">50 ms</td><td id="allowable-values"></td><td id="description">The amount of time to wait when polling the internal queue for more datagrams. If no datagrams are found after waiting for the configured timeout, then the processor will emit whatever records have been obtained up to that point.</td></tr><tr><td id="name"><strong>Batch Size</strong></td><td id="default-value">1000</td><td id="allowable-values"></td><td id="description">The maximum number of datagrams to write as records to a single FlowFile. The Batch Size will only be reached when dat
a is coming in more frequently than the Poll Timeout.</td></tr><tr><td id="name"><strong>Record Reader</strong></td><td id="default-value"></td><td id="allowable-values"><strong>Controller Service API: </strong><br/>RecordReaderFactory<br/><strong>Implementations: </strong><a href="../../../nifi-record-serialization-services-nar/1.7.1/org.apache.nifi.json.JsonTreeReader/index.html">JsonTreeReader</a><br/><a href="../../../nifi-record-serialization-services-nar/1.7.1/org.apache.nifi.avro.AvroReader/index.html">AvroReader</a><br/><a href="../../../nifi-record-serialization-services-nar/1.7.1/org.apache.nifi.csv.CSVReader/index.html">CSVReader</a><br/><a href="../../../nifi-record-serialization-services-nar/1.7.1/org.apache.nifi.xml.XMLReader/index.html">XMLReader</a><br/><a href="../../../nifi-record-serialization-services-nar/1.7.1/org.apache.nifi.json.JsonPathReader/index.html">JsonPathReader</a><br/><a href="../../../nifi-scripting-nar/1.7.1/org.apache.nifi.record.script.ScriptedRe
ader/index.html">ScriptedReader</a><br/><a href="../../../nifi-record-serialization-services-nar/1.7.1/org.apache.nifi.grok.GrokReader/index.html">GrokReader</a></td><td id="description">The Record Reader to use for reading the content of incoming datagrams.</td></tr><tr><td id="name"><strong>Record Writer</strong></td><td id="default-value"></td><td id="allowable-values"><strong>Controller Service API: </strong><br/>RecordSetWriterFactory<br/><strong>Implementations: </strong><a href="../../../nifi-record-serialization-services-nar/1.7.1/org.apache.nifi.avro.AvroRecordSetWriter/index.html">AvroRecordSetWriter</a><br/><a href="../../../nifi-record-serialization-services-nar/1.7.1/org.apache.nifi.csv.CSVRecordSetWriter/index.html">CSVRecordSetWriter</a><br/><a href="../../../nifi-record-serialization-services-nar/1.7.1/org.apache.nifi.json.JsonRecordSetWriter/index.html">JsonRecordSetWriter</a><br/><a href="../../../nifi-scripting-nar/1.7.1/org.apache.nifi.record.script.ScriptedRecor
dSetWriter/index.html">ScriptedRecordSetWriter</a><br/><a href="../../../nifi-record-serialization-services-nar/1.7.1/org.apache.nifi.xml.XMLRecordSetWriter/index.html">XMLRecordSetWriter</a><br/><a href="../../../nifi-record-serialization-services-nar/1.7.1/org.apache.nifi.text.FreeFormTextRecordSetWriter/index.html">FreeFormTextRecordSetWriter</a></td><td id="description">The Record Writer to use in order to serialize the data before writing to a flow file.</td></tr><tr><td id="name">Sending Host</td><td id="default-value"></td><td id="allowable-values"></td><td id="description">IP, or name, of a remote host. Only Datagrams from the specified Sending Host Port and this host will be accepted. Improves Performance. May be a system property or an environment variable.<br/><strong>Supports Expression Language: true (will be evaluated using variable registry only)</strong></td></tr><tr><td id="name">Sending Host Port</td><td id="default-value"></td><td id="allowable-values"></td><td id
="description">Port being used by remote host to send Datagrams. Only Datagrams from the specified Sending Host and this port will be accepted. Improves Performance. May be a system property or an environment variable.<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>Messages received successfully will be sent out this relationship.</td></tr><tr><td>parse.failure</td><td>If a datagram cannot be parsed using the configured Record Reader, the contents of the message will be routed to this Relationship as its own individual FlowFile.</td></tr></table><h3>Reads Attributes: </h3>None specified.<h3>Writes Attributes: </h3><table id="writes-attributes"><tr><th>Name</th><th>Description</th></tr><tr><td>udp.sender</td><td>The sending host of the messages.</td></tr><tr><td>udp.port</td><td>The sending port
the messages were received.</td></tr><tr><td>record.count</td><td>The number of records written to the flow file.</td></tr><tr><td>mime.type</td><td>The mime-type of the writer used to write the records to the flow file.</td></tr></table><h3>State management: </h3>This component does not store state.<h3>Restricted: </h3>This component is not restricted.<h3>Input requirement: </h3>This component does not allow an incoming relationship.<h3>System Resource Considerations:</h3>None specified.</body></html>
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+<!DOCTYPE html><html lang="en"><head><meta charset="utf-8"></meta><title>LogAttribute</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;">LogAttribute</h1><h2>Description: </h2><p>No description provided.</p><h3>Tags: </h3><p>attributes, logging</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>Name</th><th>Default Value</th><th>Allowable Values</th><th>Description</th></tr><tr><td id="name"><strong>Log Level</s
trong></td><td id="default-value">info</td><td id="allowable-values"><ul><li>trace</li><li>debug</li><li>info</li><li>warn</li><li>error</li></ul></td><td id="description">The Log Level to use when logging the Attributes</td></tr><tr><td id="name"><strong>Log Payload</strong></td><td id="default-value">false</td><td id="allowable-values"><ul><li>true</li><li>false</li></ul></td><td id="description">If true, the FlowFile's payload will be logged, in addition to its attributes; otherwise, just the Attributes will be logged.</td></tr><tr><td id="name">Attributes to Log</td><td id="default-value"></td><td id="allowable-values"></td><td id="description">A comma-separated list of Attributes to Log. If not specified, all attributes will be logged unless `Attributes to Log by Regular Expression` is modified. There's an AND relationship between the two properties.</td></tr><tr><td id="name">Attributes to Log by Regular Expression</td><td id="default-value">.*</td><td id="allowable-values"></
td><td id="description">A regular expression indicating the Attributes to Log. If not specified, all attributes will be logged unless `Attributes to Log` is modified. There's an AND relationship between the two properties.</td></tr><tr><td id="name">Attributes to Ignore</td><td id="default-value"></td><td id="allowable-values"></td><td id="description">A comma-separated list of Attributes to ignore. If not specified, no attributes will be ignored unless `Attributes to Ignore by Regular Expression` is modified. There's an OR relationship between the two properties.</td></tr><tr><td id="name">Attributes to Ignore by Regular Expression</td><td id="default-value"></td><td id="allowable-values"></td><td id="description">A regular expression indicating the Attributes to Ignore. If not specified, no attributes will be ignored unless `Attributes to Ignore` is modified. There's an OR relationship between the two properties.</td></tr><tr><td id="name">Log prefix</td><td id="default-value"></t
d><td id="allowable-values"></td><td id="description">Log prefix appended to the log lines. It helps to distinguish the output of multiple LogAttribute processors.<br/><strong>Supports Expression Language: true (will be evaluated using flow file attributes and variable registry)</strong></td></tr><tr><td id="name"><strong>Character Set</strong></td><td id="default-value">UTF-8</td><td id="allowable-values"></td><td id="description">The name of the CharacterSet to use<br/><strong>Supports Expression Language: true (will be evaluated using flow file attributes and variable registry)</strong></td></tr></table><h3>Relationships: </h3><table id="relationships"><tr><th>Name</th><th>Description</th></tr><tr><td>success</td><td>All FlowFiles are routed to 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.<h
3>Input requirement: </h3>This component requires an incoming relationship.<h3>System Resource Considerations:</h3>None specified.</body></html>
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+<!DOCTYPE html><html lang="en"><head><meta charset="utf-8"></meta><title>LogMessage</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;">LogMessage</h1><h2>Description: </h2><p>Emits a log message at the specified log level</p><h3>Tags: </h3><p>attributes, logging</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>Name</th><th>Default Value</th><th>Allowable Values</th><th>Description</th></tr><tr><td id="name"><s
trong>Log Level</strong></td><td id="default-value">info</td><td id="allowable-values"><ul><li>trace</li><li>debug</li><li>info</li><li>warn</li><li>error</li></ul></td><td id="description">The Log Level to use when logging the message<br/><strong>Supports Expression Language: true (will be evaluated using flow file attributes and variable registry)</strong></td></tr><tr><td id="name">Log prefix</td><td id="default-value"></td><td id="allowable-values"></td><td id="description">Log prefix appended to the log lines. It helps to distinguish the output of multiple LogMessage processors.<br/><strong>Supports Expression Language: true (will be evaluated using flow file attributes and variable registry)</strong></td></tr><tr><td id="name">Log message</td><td id="default-value"></td><td id="allowable-values"></td><td id="description">The log message to emit<br/><strong>Supports Expression Language: true (will be evaluated using flow file attributes and variable registry)</strong></td></tr>
</table><h3>Relationships: </h3><table id="relationships"><tr><th>Name</th><th>Description</th></tr><tr><td>success</td><td>All FlowFiles are routed to 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.</body></html>
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+++ nifi/site/trunk/docs/nifi-docs/components/org.apache.nifi/nifi-standard-nar/1.7.1/org.apache.nifi.processors.standard.LookupAttribute/index.html Tue Jul 17 01:35:38 2018
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+<!DOCTYPE html><html lang="en"><head><meta charset="utf-8"></meta><title>LookupAttribute</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;">LookupAttribute</h1><h2>Description: </h2><p>Lookup attributes from a lookup service</p><h3>Tags: </h3><p>lookup, cache, enrich, join, attributes, Attribute Expression Language</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.</p><table id="properties"><tr><th>Name</th><th>Default Value</th><th>Allowable Values</th><th>Description</th></tr><tr><td id="name"><strong>Lookup Service</strong></td><td id="default-value"></td><td id="all
owable-values"><strong>Controller Service API: </strong><br/>StringLookupService<br/><strong>Implementations: </strong><a href="../../../nifi-lookup-services-nar/1.7.1/org.apache.nifi.lookup.DistributedMapCacheLookupService/index.html">DistributedMapCacheLookupService</a><br/><a href="../../../nifi-lookup-services-nar/1.7.1/org.apache.nifi.lookup.SimpleKeyValueLookupService/index.html">SimpleKeyValueLookupService</a><br/><a href="../../../nifi-lookup-services-nar/1.7.1/org.apache.nifi.lookup.PropertiesFileLookupService/index.html">PropertiesFileLookupService</a><br/><a href="../../../nifi-couchbase-nar/1.7.1/org.apache.nifi.couchbase.CouchbaseKeyValueLookupService/index.html">CouchbaseKeyValueLookupService</a><br/><a href="../../../nifi-lookup-services-nar/1.7.1/org.apache.nifi.lookup.SimpleCsvFileLookupService/index.html">SimpleCsvFileLookupService</a><br/><a href="../../../nifi-lookup-services-nar/1.7.1/org.apache.nifi.lookup.XMLFileLookupService/index.html">XMLFileLookupService</
a></td><td id="description">The lookup service to use for attribute lookups</td></tr><tr><td id="name"><strong>Include Empty Values</strong></td><td id="default-value">true</td><td id="allowable-values"><ul><li>true</li><li>false</li></ul></td><td id="description">Include null or blank values for keys that are null or blank</td></tr></table><h3>Dynamic Properties: </h3><p>Dynamic Properties allow the user to specify both the name and value of a property.<table id="dynamic-properties"><tr><th>Name</th><th>Value</th><th>Description</th></tr><tr><td id="name">The name of the attribute to add to the FlowFile</td><td id="value">The name of the key or property to retrieve from the lookup service</td><td>Adds a FlowFile attribute specified by the dynamic property's key with the value found in the lookup service using the the dynamic property's value<br/><strong>Supports Expression Language: true (will be evaluated using flow file attributes and variable registry)</strong></td></tr></table>
</p><h3>Relationships: </h3><table id="relationships"><tr><th>Name</th><th>Description</th></tr><tr><td>failure</td><td>FlowFiles with failing lookups are routed to this relationship</td></tr><tr><td>unmatched</td><td>FlowFiles with missing lookups are routed to this relationship</td></tr><tr><td>matched</td><td>FlowFiles with matching lookups are routed to 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.</body></html>
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+<!DOCTYPE html><html lang="en"><head><meta charset="utf-8"></meta><title>LookupRecord</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;">LookupRecord</h1><h2>Description: </h2><p>Extracts one or more fields from a Record and looks up a value for those fields in a LookupService. If a result is returned by the LookupService, that result is optionally added to the Record. In this case, the processor functions as an Enrichment processor. Regardless, the Record is then routed to either the 'matched' relationship or 'unmatched' relationship (if the 'Routing Strategy' property is configured to do so), indicating whether or not a result was returned by the LookupService, allowing the processor to also function as a Routing processor. The "c
oordinates" to use for looking up a value in the Lookup Service are defined by adding a user-defined property. Each property that is added will have an entry added to a Map, where the name of the property becomes the Map Key and the value returned by the RecordPath becomes the value for that key. If multiple values are returned by the RecordPath, then the Record will be routed to the 'unmatched' relationship (or 'success', depending on the 'Routing Strategy' property's configuration). If one or more fields match the Result RecordPath, all fields that match will be updated. If there is no match in the configured LookupService, then no fields will be updated. I.e., it will not overwrite an existing value in the Record with a null value. Please note, however, that if the results returned by the LookupService are not accounted for in your schema (specifically, the schema that is configured for your Record Writer) then the fields will not be written out to the FlowFile.</p><h3>Tags: </h3
><p>lookup, enrichment, route, record, csv, json, avro, logs, convert, filter</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>Name</th><th>Default Value</th><th>Allowable Values</th><th>Description</th></tr><tr><td id="name"><strong>Record Reader</strong></td><td id="default-value"></td><td id="allowable-values"><strong>Controller Service API: </strong><br/>RecordReaderFactory<br/><strong>Implementations: </strong><a href="../../../nifi-record-serialization-services-nar/1.7.1/org.apache.nifi.json.JsonTreeReader/index.html">JsonTreeReader</a><br/><a href="../../../nifi-record-serialization-services-nar/1.7.1/org.apache.nifi.avro.AvroReader/index.html">AvroRead
er</a><br/><a href="../../../nifi-record-serialization-services-nar/1.7.1/org.apache.nifi.csv.CSVReader/index.html">CSVReader</a><br/><a href="../../../nifi-record-serialization-services-nar/1.7.1/org.apache.nifi.xml.XMLReader/index.html">XMLReader</a><br/><a href="../../../nifi-record-serialization-services-nar/1.7.1/org.apache.nifi.json.JsonPathReader/index.html">JsonPathReader</a><br/><a href="../../../nifi-scripting-nar/1.7.1/org.apache.nifi.record.script.ScriptedReader/index.html">ScriptedReader</a><br/><a href="../../../nifi-record-serialization-services-nar/1.7.1/org.apache.nifi.grok.GrokReader/index.html">GrokReader</a></td><td id="description">Specifies the Controller Service to use for reading incoming data</td></tr><tr><td id="name"><strong>Record Writer</strong></td><td id="default-value"></td><td id="allowable-values"><strong>Controller Service API: </strong><br/>RecordSetWriterFactory<br/><strong>Implementations: </strong><a href="../../../nifi-record-serialization-ser
vices-nar/1.7.1/org.apache.nifi.avro.AvroRecordSetWriter/index.html">AvroRecordSetWriter</a><br/><a href="../../../nifi-record-serialization-services-nar/1.7.1/org.apache.nifi.csv.CSVRecordSetWriter/index.html">CSVRecordSetWriter</a><br/><a href="../../../nifi-record-serialization-services-nar/1.7.1/org.apache.nifi.json.JsonRecordSetWriter/index.html">JsonRecordSetWriter</a><br/><a href="../../../nifi-scripting-nar/1.7.1/org.apache.nifi.record.script.ScriptedRecordSetWriter/index.html">ScriptedRecordSetWriter</a><br/><a href="../../../nifi-record-serialization-services-nar/1.7.1/org.apache.nifi.xml.XMLRecordSetWriter/index.html">XMLRecordSetWriter</a><br/><a href="../../../nifi-record-serialization-services-nar/1.7.1/org.apache.nifi.text.FreeFormTextRecordSetWriter/index.html">FreeFormTextRecordSetWriter</a></td><td id="description">Specifies the Controller Service to use for writing out the records</td></tr><tr><td id="name"><strong>Lookup Service</strong></td><td id="default-value
"></td><td id="allowable-values"><strong>Controller Service API: </strong><br/>LookupService<br/><strong>Implementations: </strong><a href="../../../nifi-couchbase-nar/1.7.1/org.apache.nifi.couchbase.CouchbaseRecordLookupService/index.html">CouchbaseRecordLookupService</a><br/><a href="../../../nifi-lookup-services-nar/1.7.1/org.apache.nifi.lookup.RestLookupService/index.html">RestLookupService</a><br/><a href="../../../nifi-scripting-nar/1.7.1/org.apache.nifi.lookup.script.ScriptedLookupService/index.html">ScriptedLookupService</a><br/><a href="../../../nifi-lookup-services-nar/1.7.1/org.apache.nifi.lookup.DistributedMapCacheLookupService/index.html">DistributedMapCacheLookupService</a><br/><a href="../../../nifi-lookup-services-nar/1.7.1/org.apache.nifi.lookup.maxmind.IPLookupService/index.html">IPLookupService</a><br/><a href="../../../nifi-lookup-services-nar/1.7.1/org.apache.nifi.lookup.SimpleKeyValueLookupService/index.html">SimpleKeyValueLookupService</a><br/><a href="../../.
./nifi-mongodb-services-nar/1.7.1/org.apache.nifi.mongodb.MongoDBLookupService/index.html">MongoDBLookupService</a><br/><a href="../../../nifi-lookup-services-nar/1.7.1/org.apache.nifi.lookup.PropertiesFileLookupService/index.html">PropertiesFileLookupService</a><br/><a href="../../../nifi-hbase_1_1_2-client-service-nar/1.7.1/org.apache.nifi.hbase.HBase_1_1_2_RecordLookupService/index.html">HBase_1_1_2_RecordLookupService</a><br/><a href="../../../nifi-couchbase-nar/1.7.1/org.apache.nifi.couchbase.CouchbaseKeyValueLookupService/index.html">CouchbaseKeyValueLookupService</a><br/><a href="../../../nifi-lookup-services-nar/1.7.1/org.apache.nifi.lookup.SimpleCsvFileLookupService/index.html">SimpleCsvFileLookupService</a><br/><a href="../../../nifi-lookup-services-nar/1.7.1/org.apache.nifi.lookup.CSVRecordLookupService/index.html">CSVRecordLookupService</a><br/><a href="../../../nifi-lookup-services-nar/1.7.1/org.apache.nifi.lookup.XMLFileLookupService/index.html">XMLFileLookupService</a
></td><td id="description">The Lookup Service to use in order to lookup a value in each Record</td></tr><tr><td id="name">Result RecordPath</td><td id="default-value"></td><td id="allowable-values"></td><td id="description">A RecordPath that points to the field whose value should be updated with whatever value is returned from the Lookup Service. If not specified, the value that is returned from the Lookup Service will be ignored, except for determining whether the FlowFile should be routed to the 'matched' or 'unmatched' Relationship.<br/><strong>Supports Expression Language: true (will be evaluated using flow file attributes and variable registry)</strong></td></tr><tr><td id="name"><strong>Routing Strategy</strong></td><td id="default-value">route-to-success</td><td id="allowable-values"><ul><li>Route to 'success' <img src="../../../../../html/images/iconInfo.png" alt="Records will be routed to a 'success' Relationship regardless of whether or not there is a match in the configur
ed Lookup Service" title="Records will be routed to a 'success' Relationship regardless of whether or not there is a match in the configured Lookup Service"></img></li><li>Route to 'matched' or 'unmatched' <img src="../../../../../html/images/iconInfo.png" alt="Records will be routed to either a 'matched' or an 'unmatched' Relationship depending on whether or not there was a match in the configured Lookup Service. A single input FlowFile may result in two different output FlowFiles." title="Records will be routed to either a 'matched' or an 'unmatched' Relationship depending on whether or not there was a match in the configured Lookup Service. A single input FlowFile may result in two different output FlowFiles."></img></li></ul></td><td id="description">Specifies how to route records after a Lookup has completed</td></tr><tr><td id="name"><strong>Record Result Contents</strong></td><td id="default-value">insert-entire-record</td><td id="allowable-values"><ul><li>Insert Entire Recor
d <img src="../../../../../html/images/iconInfo.png" alt="The entire Record that is retrieved from the Lookup Service will be inserted into the destination path." title="The entire Record that is retrieved from the Lookup Service will be inserted into the destination path."></img></li><li>Insert Record Fields <img src="../../../../../html/images/iconInfo.png" alt="All of the fields in the Record that is retrieved from the Lookup Service will be inserted into the destination path." title="All of the fields in the Record that is retrieved from the Lookup Service will be inserted into the destination path."></img></li></ul></td><td id="description">When a result is obtained that contains a Record, this property determines whether the Record itself is inserted at the configured path or if the contents of the Record (i.e., the sub-fields) will be inserted at the configured path.</td></tr></table><h3>Dynamic Properties: </h3><p>Dynamic Properties allow the user to specify both the name an
d value of a property.<table id="dynamic-properties"><tr><th>Name</th><th>Value</th><th>Description</th></tr><tr><td id="name">Value To Lookup</td><td id="value">Valid Record Path</td><td>A RecordPath that points to the field whose value will be looked up in the configured Lookup Service<br/><strong>Supports Expression Language: true (will be evaluated using flow file attributes and variable registry)</strong></td></tr></table></p><h3>Relationships: </h3><table id="relationships"><tr><th>Name</th><th>Description</th></tr><tr><td>success</td><td>All records will be sent to this Relationship if configured to do so, unless a failure occurs</td></tr><tr><td>failure</td><td>If a FlowFile cannot be transformed from the configured input format to the configured output format, the unchanged FlowFile will be routed to this relationship</td></tr></table><h3>Reads Attributes: </h3>None specified.<h3>Writes Attributes: </h3><table id="writes-attributes"><tr><th>Name</th><th>Description</th></tr
><tr><td>mime.type</td><td>Sets the mime.type attribute to the MIME Type specified by the Record Writer</td></tr><tr><td>record.count</td><td>The number of records in the FlowFile</td></tr></table><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.ConvertRecord/index.html">ConvertRecord</a>, <a href="../org.apache.nifi.processors.standard.SplitRecord/index.html">SplitRecord</a>, <a href="../../../nifi-lookup-services-nar/1.7.1/org.apache.nifi.lookup.SimpleKeyValueLookupService/index.html">SimpleKeyValueLookupService</a>, <a href="../../../nifi-lookup-services-nar/1.7.1/org.apache.nifi.lookup.maxmind.IPLookupService/index.html">IPLookupService</a></p></body></html>
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