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Added: nifi/site/trunk/docs/nifi-docs/components/org.apache.nifi/nifi-standard-nar/1.9.1/org.apache.nifi.processors.standard.ListFTP/index.html
URL: http://svn.apache.org/viewvc/nifi/site/trunk/docs/nifi-docs/components/org.apache.nifi/nifi-standard-nar/1.9.1/org.apache.nifi.processors.standard.ListFTP/index.html?rev=1855761&view=auto
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+<!DOCTYPE html><html lang="en"><head><meta charset="utf-8"></meta><title>ListFTP</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;">ListFTP</h1><h2>Description: </h2><p>Performs a listing of the files residing on an FTP server. For each file that is found on the remote server, a new FlowFile will be created with the filename attribute set to the name of the file on the remote server. This can then be used in conjunction with FetchFTP in order to fetch those files.</p><h3>Tags: </h3><p>list, ftp, remote, ingest, source, input, files</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 def
ault values, whether a property supports the <a href="../../../../../html/expression-language-guide.html">NiFi Expression Language</a>, and whether a property is considered "sensitive", meaning that its value will be encrypted. Before entering a value in a sensitive property, ensure that the <strong>nifi.properties</strong> file has an entry for the property <strong>nifi.sensitive.props.key</strong>.</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>Listing Strategy</strong></td><td id="default-value">timestamps</td><td id="allowable-values"><ul><li>Tracking Timestamps <img src="../../../../../html/images/iconInfo.png" alt="This strategy tracks the latest timestamp of listed entity to determine new/updated entities. Since it only tracks few timestamps, it can manage listing state efficiently. However, any newly added, or updated entity having timestamp older than the tracked latest timestamp c
an not be picked by this strategy. For example, such situation can happen in a file system if a file with old timestamp is copied or moved into the target directory without its last modified timestamp being updated." title="This strategy tracks the latest timestamp of listed entity to determine new/updated entities. Since it only tracks few timestamps, it can manage listing state efficiently. However, any newly added, or updated entity having timestamp older than the tracked latest timestamp can not be picked by this strategy. For example, such situation can happen in a file system if a file with old timestamp is copied or moved into the target directory without its last modified timestamp being updated."></img></li><li>Tracking Entities <img src="../../../../../html/images/iconInfo.png" alt="This strategy tracks information of all the listed entities within the latest 'Entity Tracking Time Window' to determine new/updated entities. This strategy can pick entities having old timesta
mp that can be missed with 'Tracing Timestamps'. However additional DistributedMapCache controller service is required and more JVM heap memory is used. See the description of 'Entity Tracking Time Window' property for further details on how it works." title="This strategy tracks information of all the listed entities within the latest 'Entity Tracking Time Window' to determine new/updated entities. This strategy can pick entities having old timestamp that can be missed with 'Tracing Timestamps'. However additional DistributedMapCache controller service is required and more JVM heap memory is used. See the description of 'Entity Tracking Time Window' property for further details on how it works."></img></li></ul></td><td id="description">Specify how to determine new/updated entities. See each strategy descriptions for detail.</td></tr><tr><td id="name"><strong>Hostname</strong></td><td id="default-value"></td><td id="allowable-values"></td><td id="description">The fully qualified ho
stname or IP address of the remote system<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">21</td><td id="allowable-values"></td><td id="description">The port to connect to on the remote host to fetch the data from<br/><strong>Supports Expression Language: true (will be evaluated using variable registry only)</strong></td></tr><tr><td id="name"><strong>Username</strong></td><td id="default-value"></td><td id="allowable-values"></td><td id="description">Username<br/><strong>Supports Expression Language: true (will be evaluated using variable registry only)</strong></td></tr><tr><td id="name">Password</td><td id="default-value"></td><td id="allowable-values"></td><td id="description">Password for the user account<br/><strong>Sensitive Property: true</strong><br/><strong>Supports Expression Language: true (will be evaluated using variable registry only)</s
trong></td></tr><tr><td id="name">Remote Path</td><td id="default-value">.</td><td id="allowable-values"></td><td id="description">The path on the remote system from which to pull or push files<br/><strong>Supports Expression Language: true (will be evaluated using variable registry only)</strong></td></tr><tr><td id="name">Distributed Cache Service</td><td id="default-value"></td><td id="allowable-values"><strong>Controller Service API: </strong><br/>DistributedMapCacheClient<br/><strong>Implementations: </strong><a href="../../../nifi-hbase_2-client-service-nar/1.9.1/org.apache.nifi.hbase.HBase_2_ClientMapCacheService/index.html">HBase_2_ClientMapCacheService</a><br/><a href="../../../nifi-redis-nar/1.9.1/org.apache.nifi.redis.service.RedisDistributedMapCacheClientService/index.html">RedisDistributedMapCacheClientService</a><br/><a href="../../../nifi-couchbase-nar/1.9.1/org.apache.nifi.couchbase.CouchbaseMapCacheClient/index.html">CouchbaseMapCacheClient</a><br/><a href="../../..
/nifi-hbase_1_1_2-client-service-nar/1.9.1/org.apache.nifi.hbase.HBase_1_1_2_ClientMapCacheService/index.html">HBase_1_1_2_ClientMapCacheService</a><br/><a href="../../../nifi-distributed-cache-services-nar/1.9.1/org.apache.nifi.distributed.cache.client.DistributedMapCacheClientService/index.html">DistributedMapCacheClientService</a></td><td id="description">NOTE: This property is used merely for migration from old NiFi version before state management was introduced at version 0.5.0. The stored value in the cache service will be migrated into the state when this processor is started at the first time. The specified Controller Service was used to maintain state about what had been pulled from the remote server so that if a new node begins pulling data, it won't duplicate all of the work that has been done. If not specified, the information was not shared across the cluster. This property did not need to be set for standalone instances of NiFi but was supposed to be configured if NiFi
had been running within a cluster.</td></tr><tr><td id="name"><strong>Search Recursively</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, will pull files from arbitrarily nested subdirectories; otherwise, will not traverse subdirectories</td></tr><tr><td id="name"><strong>Follow symlink</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, will pull even symbolic files and also nested symbolic subdirectories; otherwise, will not read symbolic files and will not traverse symbolic link subdirectories</td></tr><tr><td id="name">File Filter Regex</td><td id="default-value"></td><td id="allowable-values"></td><td id="description">Provides a Java Regular Expression for filtering Filenames; if a filter is supplied, only files whose names match that Regular Expression will be fetched</td></tr><tr><td id="name"
>Path Filter Regex</td><td id="default-value"></td><td id="allowable-values"></td><td id="description">When Search Recursively is true, then only subdirectories whose path matches the given Regular Expression will be scanned</td></tr><tr><td id="name"><strong>Ignore Dotted Files</strong></td><td id="default-value">true</td><td id="allowable-values"><ul><li>true</li><li>false</li></ul></td><td id="description">If true, files whose names begin with a dot (".") will be ignored</td></tr><tr><td id="name"><strong>Remote Poll Batch Size</strong></td><td id="default-value">5000</td><td id="allowable-values"></td><td id="description">The value specifies how many file paths to find in a given directory on the remote system when doing a file listing. This value in general should not need to be modified but when polling against a remote system with a tremendous number of files this value can be critical. Setting this value too high can result very poor performance and setting it too low can c
ause the flow to be slower than normal.</td></tr><tr><td id="name"><strong>Connection Timeout</strong></td><td id="default-value">30 sec</td><td id="allowable-values"></td><td id="description">Amount of time to wait before timing out while creating a connection</td></tr><tr><td id="name"><strong>Data Timeout</strong></td><td id="default-value">30 sec</td><td id="allowable-values"></td><td id="description">When transferring a file between the local and remote system, this value specifies how long is allowed to elapse without any data being transferred between systems</td></tr><tr><td id="name">Connection Mode</td><td id="default-value">Passive</td><td id="allowable-values"><ul><li>Active</li><li>Passive</li></ul></td><td id="description">The FTP Connection Mode</td></tr><tr><td id="name">Transfer Mode</td><td id="default-value">Binary</td><td id="allowable-values"><ul><li>Binary</li><li>ASCII</li></ul></td><td id="description">The FTP Transfer Mode</td></tr><tr><td id="name">Proxy Co
nfiguration Service</td><td id="default-value"></td><td id="allowable-values"><strong>Controller Service API: </strong><br/>ProxyConfigurationService<br/><strong>Implementation: </strong><a href="../../../nifi-proxy-configuration-nar/1.9.1/org.apache.nifi.proxy.StandardProxyConfigurationService/index.html">StandardProxyConfigurationService</a></td><td id="description">Specifies the Proxy Configuration Controller Service to proxy network requests. If set, it supersedes proxy settings configured per component. Supported proxies: HTTP + AuthN, SOCKS</td></tr><tr><td id="name">Proxy Type</td><td id="default-value">DIRECT</td><td id="allowable-values"><ul><li>DIRECT</li><li>HTTP</li><li>SOCKS</li></ul></td><td id="description">Proxy type used for file transfers</td></tr><tr><td id="name">Proxy Host</td><td id="default-value"></td><td id="allowable-values"></td><td id="description">The fully qualified hostname or IP address of the proxy server<br/><strong>Supports Expression Language: tru
e (will be evaluated using variable registry only)</strong></td></tr><tr><td id="name">Proxy Port</td><td id="default-value"></td><td id="allowable-values"></td><td id="description">The port of the proxy server<br/><strong>Supports Expression Language: true (will be evaluated using variable registry only)</strong></td></tr><tr><td id="name">Http Proxy Username</td><td id="default-value"></td><td id="allowable-values"></td><td id="description">Http Proxy Username<br/><strong>Supports Expression Language: true (will be evaluated using variable registry only)</strong></td></tr><tr><td id="name">Http Proxy Password</td><td id="default-value"></td><td id="allowable-values"></td><td id="description">Http Proxy Password<br/><strong>Sensitive Property: true</strong><br/><strong>Supports Expression Language: true (will be evaluated using variable registry only)</strong></td></tr><tr><td id="name">Internal Buffer Size</td><td id="default-value">16KB</td><td id="allowable-values"></td><td id="
description">Set the internal buffer size for buffered data streams</td></tr><tr><td id="name"><strong>Target System Timestamp Precision</strong></td><td id="default-value">auto-detect</td><td id="allowable-values"><ul><li>Auto Detect <img src="../../../../../html/images/iconInfo.png" alt="Automatically detect time unit deterministically based on candidate entries timestamp. Please note that this option may take longer to list entities unnecessarily, if none of entries has a precise precision timestamp. E.g. even if a target system supports millis, if all entries only have timestamps without millis, such as '2017-06-16 09:06:34.000', then its precision is determined as 'seconds'." title="Automatically detect time unit deterministically based on candidate entries timestamp. Please note that this option may take longer to list entities unnecessarily, if none of entries has a precise precision timestamp. E.g. even if a target system supports millis, if all entries only have timestamps
without millis, such as '2017-06-16 09:06:34.000', then its precision is determined as 'seconds'."></img></li><li>Milliseconds <img src="../../../../../html/images/iconInfo.png" alt="This option provides the minimum latency for an entry from being available to being listed if target system supports millis, if not, use other options." title="This option provides the minimum latency for an entry from being available to being listed if target system supports millis, if not, use other options."></img></li><li>Seconds <img src="../../../../../html/images/iconInfo.png" alt="For a target system that does not have millis precision, but has in seconds." title="For a target system that does not have millis precision, but has in seconds."></img></li><li>Minutes <img src="../../../../../html/images/iconInfo.png" alt="For a target system that only supports precision in minutes." title="For a target system that only supports precision in minutes."></img></li></ul></td><td id="description">Specify
timestamp precision at the target system. Since this processor uses timestamp of entities to decide which should be listed, it is crucial to use the right timestamp precision.</td></tr><tr><td id="name">Entity Tracking State Cache</td><td id="default-value"></td><td id="allowable-values"><strong>Controller Service API: </strong><br/>DistributedMapCacheClient<br/><strong>Implementations: </strong><a href="../../../nifi-hbase_2-client-service-nar/1.9.1/org.apache.nifi.hbase.HBase_2_ClientMapCacheService/index.html">HBase_2_ClientMapCacheService</a><br/><a href="../../../nifi-redis-nar/1.9.1/org.apache.nifi.redis.service.RedisDistributedMapCacheClientService/index.html">RedisDistributedMapCacheClientService</a><br/><a href="../../../nifi-couchbase-nar/1.9.1/org.apache.nifi.couchbase.CouchbaseMapCacheClient/index.html">CouchbaseMapCacheClient</a><br/><a href="../../../nifi-hbase_1_1_2-client-service-nar/1.9.1/org.apache.nifi.hbase.HBase_1_1_2_ClientMapCacheService/index.html">HBase_1_1
_2_ClientMapCacheService</a><br/><a href="../../../nifi-distributed-cache-services-nar/1.9.1/org.apache.nifi.distributed.cache.client.DistributedMapCacheClientService/index.html">DistributedMapCacheClientService</a></td><td id="description">Listed entities are stored in the specified cache storage so that this processor can resume listing across NiFi restart or in case of primary node change. 'Tracking Entities' strategy require tracking information of all listed entities within the last 'Tracking Time Window'. To support large number of entities, the strategy uses DistributedMapCache instead of managed state. Cache key format is 'ListedEntities::{processorId}(::{nodeId})'. If it tracks per node listed entities, then the optional '::{nodeId}' part is added to manage state separately. E.g. cluster wide cache key = 'ListedEntities::8dda2321-0164-1000-50fa-3042fe7d6a7b', per node cache key = 'ListedEntities::8dda2321-0164-1000-50fa-3042fe7d6a7b::nifi-node3' The stored cache content is
Gzipped JSON string. The cache key will be deleted when target listing configuration is changed. Used by 'Tracking Entities' strategy.</td></tr><tr><td id="name">Entity Tracking Time Window</td><td id="default-value">3 hours</td><td id="allowable-values"></td><td id="description">Specify how long this processor should track already-listed entities. 'Tracking Entities' strategy can pick any entity whose timestamp is inside the specified time window. For example, if set to '30 minutes', any entity having timestamp in recent 30 minutes will be the listing target when this processor runs. A listed entity is considered 'new/updated' and a FlowFile is emitted if one of following condition meets: 1. does not exist in the already-listed entities, 2. has newer timestamp than the cached entity, 3. has different size than the cached entity. If a cached entity's timestamp becomes older than specified time window, that entity will be removed from the cached already-listed entities. Used by 'Trac
king Entities' strategy.<br/><strong>Supports Expression Language: true (will be evaluated using variable registry only)</strong></td></tr><tr><td id="name">Entity Tracking Initial Listing Target</td><td id="default-value">all</td><td id="allowable-values"><ul><li>Tracking Time Window <img src="../../../../../html/images/iconInfo.png" alt="Ignore entities having timestamp older than the specified 'Tracking Time Window' at the initial listing activity." title="Ignore entities having timestamp older than the specified 'Tracking Time Window' at the initial listing activity."></img></li><li>All Available <img src="../../../../../html/images/iconInfo.png" alt="Regardless of entities timestamp, all existing entities will be listed at the initial listing activity." title="Regardless of entities timestamp, all existing entities will be listed at the initial listing activity."></img></li></ul></td><td id="description">Specify how initial listing should be handled. Used by 'Tracking Entities'
strategy.</td></tr></table><h3>Relationships: </h3><table id="relationships"><tr><th>Name</th><th>Description</th></tr><tr><td>success</td><td>All FlowFiles that are received are routed to success</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>ftp.remote.host</td><td>The hostname of the FTP Server</td></tr><tr><td>ftp.remote.port</td><td>The port that was connected to on the FTP Server</td></tr><tr><td>ftp.listing.user</td><td>The username of the user that performed the FTP Listing</td></tr><tr><td>file.owner</td><td>The numeric owner id of the source file</td></tr><tr><td>file.group</td><td>The numeric group id of the source file</td></tr><tr><td>file.permissions</td><td>The read/write/execute permissions of the source file</td></tr><tr><td>file.size</td><td>The number of bytes in the source file</td></tr><tr><td>file.lastModifiedTime</td><td>The timestamp of whe
n the file in the filesystem waslast modified as 'yyyy-MM-dd'T'HH:mm:ssZ'</td></tr><tr><td>filename</td><td>The name of the file on the SFTP Server</td></tr><tr><td>path</td><td>The fully qualified name of the directory on the SFTP Server from which the file was pulled</td></tr></table><h3>State management: </h3><table id="stateful"><tr><th>Scope</th><th>Description</th></tr><tr><td>CLUSTER</td><td>After performing a listing of files, the timestamp of the newest file is stored. This allows the Processor to list only files that have been added or modified after this date the next time that the Processor is run. State is stored across the cluster so that this Processor can be run on Primary Node only and if a new Primary Node is selected, the new node will not duplicate the data that was listed by the previous Primary Node.</td></tr></table><h3>Restricted: </h3>This component is not restricted.<h3>Input requirement: </h3>This component does not allow an incoming relationship.<h3>Syste
m Resource Considerations:</h3>None specified.<h3>See Also:</h3><p><a href="../org.apache.nifi.processors.standard.FetchFTP/index.html">FetchFTP</a>, <a href="../org.apache.nifi.processors.standard.GetFTP/index.html">GetFTP</a>, <a href="../org.apache.nifi.processors.standard.PutFTP/index.html">PutFTP</a></p></body></html>
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+<!DOCTYPE html><html lang="en"><head><meta charset="utf-8"></meta><title>ListFile</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;">ListFile</h1><h2>Description: </h2><p>Retrieves a listing of files from the local filesystem. For each file that is listed, creates a FlowFile that represents the file so that it can be fetched in conjunction with FetchFile. This Processor is designed to run on Primary Node only in a cluster. If the primary node changes, the new Primary Node will pick up where the previous node left off without duplicating all of the data. Unlike GetFile, this Processor does not delete any data from the local filesystem.</p><h3>Tags: </h3><p>file, get, list, ingest, source, filesystem</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>Input Directory</strong></td><td id="default-value"></td><td id="allowable-values"></td><td id="description">The input directory from which files to pull files<br/><strong>Supports Expression Language: true (will be evaluated using variable registry only)</strong></td></tr><tr><td id="name"><strong>Listing Strategy</strong></td><td id="default-value">timestamps</td><td id="allowable-values"><ul><li>Tracking Timestamps <img src="../../../../../html/images/iconInfo.png" alt="This strategy tracks the latest timestamp of listed entity to determ
ine new/updated entities. Since it only tracks few timestamps, it can manage listing state efficiently. However, any newly added, or updated entity having timestamp older than the tracked latest timestamp can not be picked by this strategy. For example, such situation can happen in a file system if a file with old timestamp is copied or moved into the target directory without its last modified timestamp being updated." title="This strategy tracks the latest timestamp of listed entity to determine new/updated entities. Since it only tracks few timestamps, it can manage listing state efficiently. However, any newly added, or updated entity having timestamp older than the tracked latest timestamp can not be picked by this strategy. For example, such situation can happen in a file system if a file with old timestamp is copied or moved into the target directory without its last modified timestamp being updated."></img></li><li>Tracking Entities <img src="../../../../../html/images/iconIn
fo.png" alt="This strategy tracks information of all the listed entities within the latest 'Entity Tracking Time Window' to determine new/updated entities. This strategy can pick entities having old timestamp that can be missed with 'Tracing Timestamps'. However additional DistributedMapCache controller service is required and more JVM heap memory is used. See the description of 'Entity Tracking Time Window' property for further details on how it works." title="This strategy tracks information of all the listed entities within the latest 'Entity Tracking Time Window' to determine new/updated entities. This strategy can pick entities having old timestamp that can be missed with 'Tracing Timestamps'. However additional DistributedMapCache controller service is required and more JVM heap memory is used. See the description of 'Entity Tracking Time Window' property for further details on how it works."></img></li></ul></td><td id="description">Specify how to determine new/updated entiti
es. See each strategy descriptions for detail.</td></tr><tr><td id="name"><strong>Recurse Subdirectories</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 whether to list files from subdirectories of the directory</td></tr><tr><td id="name"><strong>Input Directory Location</strong></td><td id="default-value">Local</td><td id="allowable-values"><ul><li>Local <img src="../../../../../html/images/iconInfo.png" alt="Input Directory is located on a local disk. State will be stored locally on each node in the cluster." title="Input Directory is located on a local disk. State will be stored locally on each node in the cluster."></img></li><li>Remote <img src="../../../../../html/images/iconInfo.png" alt="Input Directory is located on a remote system. State will be stored across the cluster so that the listing can be performed on Primary Node Only and another node can pick up where the last node lef
t off, if the Primary Node changes" title="Input Directory is located on a remote system. State will be stored across the cluster so that the listing can be performed on Primary Node Only and another node can pick up where the last node left off, if the Primary Node changes"></img></li></ul></td><td id="description">Specifies where the Input Directory is located. This is used to determine whether state should be stored locally or across the cluster.</td></tr><tr><td id="name"><strong>File Filter</strong></td><td id="default-value">[^\.].*</td><td id="allowable-values"></td><td id="description">Only files whose names match the given regular expression will be picked up</td></tr><tr><td id="name">Path Filter</td><td id="default-value"></td><td id="allowable-values"></td><td id="description">When Recurse Subdirectories is true, then only subdirectories whose path matches the given regular expression will be scanned</td></tr><tr><td id="name"><strong>Include File Attributes</strong></td
><td id="default-value">true</td><td id="allowable-values"><ul><li>true</li><li>false</li></ul></td><td id="description">Whether or not to include information such as the file's Last Modified Time and Owner as FlowFile Attributes. Depending on the File System being used, gathering this information can be expensive and as a result should be disabled. This is especially true of remote file shares.</td></tr><tr><td id="name"><strong>Minimum File Age</strong></td><td id="default-value">0 sec</td><td id="allowable-values"></td><td id="description">The minimum age that a file must be in order to be pulled; any file younger than this amount of time (according to last modification date) will be ignored</td></tr><tr><td id="name">Maximum File Age</td><td id="default-value"></td><td id="allowable-values"></td><td id="description">The maximum age that a file must be in order to be pulled; any file older than this amount of time (according to last modification date) will be ignored</td></tr><tr
><td id="name"><strong>Minimum File Size</strong></td><td id="default-value">0 B</td><td id="allowable-values"></td><td id="description">The minimum size that a file must be in order to be pulled</td></tr><tr><td id="name">Maximum File Size</td><td id="default-value"></td><td id="allowable-values"></td><td id="description">The maximum size that a file can be in order to be pulled</td></tr><tr><td id="name"><strong>Ignore Hidden Files</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 whether or not hidden files should be ignored</td></tr><tr><td id="name"><strong>Target System Timestamp Precision</strong></td><td id="default-value">auto-detect</td><td id="allowable-values"><ul><li>Auto Detect <img src="../../../../../html/images/iconInfo.png" alt="Automatically detect time unit deterministically based on candidate entries timestamp. Please note that this option may take longer to list entitie
s unnecessarily, if none of entries has a precise precision timestamp. E.g. even if a target system supports millis, if all entries only have timestamps without millis, such as '2017-06-16 09:06:34.000', then its precision is determined as 'seconds'." title="Automatically detect time unit deterministically based on candidate entries timestamp. Please note that this option may take longer to list entities unnecessarily, if none of entries has a precise precision timestamp. E.g. even if a target system supports millis, if all entries only have timestamps without millis, such as '2017-06-16 09:06:34.000', then its precision is determined as 'seconds'."></img></li><li>Milliseconds <img src="../../../../../html/images/iconInfo.png" alt="This option provides the minimum latency for an entry from being available to being listed if target system supports millis, if not, use other options." title="This option provides the minimum latency for an entry from being available to being listed if t
arget system supports millis, if not, use other options."></img></li><li>Seconds <img src="../../../../../html/images/iconInfo.png" alt="For a target system that does not have millis precision, but has in seconds." title="For a target system that does not have millis precision, but has in seconds."></img></li><li>Minutes <img src="../../../../../html/images/iconInfo.png" alt="For a target system that only supports precision in minutes." title="For a target system that only supports precision in minutes."></img></li></ul></td><td id="description">Specify timestamp precision at the target system. Since this processor uses timestamp of entities to decide which should be listed, it is crucial to use the right timestamp precision.</td></tr><tr><td id="name">Entity Tracking State Cache</td><td id="default-value"></td><td id="allowable-values"><strong>Controller Service API: </strong><br/>DistributedMapCacheClient<br/><strong>Implementations: </strong><a href="../../../nifi-hbase_2-client-
service-nar/1.9.1/org.apache.nifi.hbase.HBase_2_ClientMapCacheService/index.html">HBase_2_ClientMapCacheService</a><br/><a href="../../../nifi-redis-nar/1.9.1/org.apache.nifi.redis.service.RedisDistributedMapCacheClientService/index.html">RedisDistributedMapCacheClientService</a><br/><a href="../../../nifi-couchbase-nar/1.9.1/org.apache.nifi.couchbase.CouchbaseMapCacheClient/index.html">CouchbaseMapCacheClient</a><br/><a href="../../../nifi-hbase_1_1_2-client-service-nar/1.9.1/org.apache.nifi.hbase.HBase_1_1_2_ClientMapCacheService/index.html">HBase_1_1_2_ClientMapCacheService</a><br/><a href="../../../nifi-distributed-cache-services-nar/1.9.1/org.apache.nifi.distributed.cache.client.DistributedMapCacheClientService/index.html">DistributedMapCacheClientService</a></td><td id="description">Listed entities are stored in the specified cache storage so that this processor can resume listing across NiFi restart or in case of primary node change. 'Tracking Entities' strategy require track
ing information of all listed entities within the last 'Tracking Time Window'. To support large number of entities, the strategy uses DistributedMapCache instead of managed state. Cache key format is 'ListedEntities::{processorId}(::{nodeId})'. If it tracks per node listed entities, then the optional '::{nodeId}' part is added to manage state separately. E.g. cluster wide cache key = 'ListedEntities::8dda2321-0164-1000-50fa-3042fe7d6a7b', per node cache key = 'ListedEntities::8dda2321-0164-1000-50fa-3042fe7d6a7b::nifi-node3' The stored cache content is Gzipped JSON string. The cache key will be deleted when target listing configuration is changed. Used by 'Tracking Entities' strategy.</td></tr><tr><td id="name">Entity Tracking Time Window</td><td id="default-value">3 hours</td><td id="allowable-values"></td><td id="description">Specify how long this processor should track already-listed entities. 'Tracking Entities' strategy can pick any entity whose timestamp is inside the specifie
d time window. For example, if set to '30 minutes', any entity having timestamp in recent 30 minutes will be the listing target when this processor runs. A listed entity is considered 'new/updated' and a FlowFile is emitted if one of following condition meets: 1. does not exist in the already-listed entities, 2. has newer timestamp than the cached entity, 3. has different size than the cached entity. If a cached entity's timestamp becomes older than specified time window, that entity will be removed from the cached already-listed entities. Used by 'Tracking Entities' strategy.<br/><strong>Supports Expression Language: true (will be evaluated using variable registry only)</strong></td></tr><tr><td id="name">Entity Tracking Initial Listing Target</td><td id="default-value">all</td><td id="allowable-values"><ul><li>Tracking Time Window <img src="../../../../../html/images/iconInfo.png" alt="Ignore entities having timestamp older than the specified 'Tracking Time Window' at the initial
listing activity." title="Ignore entities having timestamp older than the specified 'Tracking Time Window' at the initial listing activity."></img></li><li>All Available <img src="../../../../../html/images/iconInfo.png" alt="Regardless of entities timestamp, all existing entities will be listed at the initial listing activity." title="Regardless of entities timestamp, all existing entities will be listed at the initial listing activity."></img></li></ul></td><td id="description">Specify how initial listing should be handled. Used by 'Tracking Entities' strategy.</td></tr><tr><td id="name">Entity Tracking Node Identifier</td><td id="default-value">${hostname()}</td><td id="allowable-values"></td><td id="description">The configured value will be appended to the cache key so that listing state can be tracked per NiFi node rather than cluster wide when tracking state is scoped to LOCAL. Used by 'Tracking Entities' strategy.<br/><strong>Supports Expression Language: true (will be evalua
ted using variable registry only)</strong></td></tr><tr><td id="name"><strong>Track Performance</strong></td><td id="default-value">false</td><td id="allowable-values"><ul><li>true</li><li>false</li></ul></td><td id="description">Whether or not the Processor should track the performance of disk access operations. If true, all accesses to disk will be recorded, including the file being accessed, the information being obtained, and how long it takes. This is then logged periodically at a DEBUG level. While the amount of data will be capped, this option may still consume a significant amount of heap (controlled by the 'Maximum Number of Files to Track' property), but it can be very useful for troubleshooting purposes if performance is poor is degraded.</td></tr><tr><td id="name"><strong>Maximum Number of Files to Track</strong></td><td id="default-value">100000</td><td id="allowable-values"></td><td id="description">If the 'Track Performance' property is set to 'true', this property in
dicates the maximum number of files whose performance metrics should be held onto. A smaller value for this property will result in less heap utilization, while a larger value may provide more accurate insights into how the disk access operations are performing<br/><strong>Supports Expression Language: true (will be evaluated using variable registry only)</strong></td></tr><tr><td id="name">Max Disk Operation Time</td><td id="default-value">10 secs</td><td id="allowable-values"></td><td id="description">The maximum amount of time that any single disk operation is expected to take. If any disk operation takes longer than this amount of time, a warning bulletin will be generated for each operation that exceeds this amount of time.<br/><strong>Supports Expression Language: true (will be evaluated using variable registry only)</strong></td></tr><tr><td id="name">Max Directory Listing Time</td><td id="default-value">3 mins</td><td id="allowable-values"></td><td id="description">The maxim
um amount of time that listing any single directory is expected to take. If the listing for the directory specified by the 'Input Directory' property, or the listing of any subdirectory (if 'Recurse' is set to true) takes longer than this amount of time, a warning bulletin will be generated for each directory listing that exceeds this amount of time.<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>All FlowFiles that are received are routed to success</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>filename</td><td>The name of the file that was read from filesystem.</td></tr><tr><td>path</td><td>The path is set to the relative path of the file's directory on filesystem compared to
the Input Directory property. For example, if Input Directory is set to /tmp, then files picked up from /tmp will have the path attribute set to "/". If the Recurse Subdirectories property is set to true and a file is picked up from /tmp/abc/1/2/3, then the path attribute will be set to "abc/1/2/3/".</td></tr><tr><td>absolute.path</td><td>The absolute.path is set to the absolute path of the file's directory on filesystem. For example, if the Input Directory property is set to /tmp, then files picked up from /tmp will have the path attribute set to "/tmp/". If the Recurse Subdirectories property is set to true and a file is picked up from /tmp/abc/1/2/3, then the path attribute will be set to "/tmp/abc/1/2/3/".</td></tr><tr><td>file.owner</td><td>The user that owns the file in filesystem</td></tr><tr><td>file.group</td><td>The group that owns the file in filesystem</td></tr><tr><td>file.size</td><td>The number of bytes in the file in filesystem</td></tr><tr><td>file.permissions</td
><td>The permissions for the file in filesystem. This is formatted as 3 characters for the owner, 3 for the group, and 3 for other users. For example rw-rw-r--</td></tr><tr><td>file.lastModifiedTime</td><td>The timestamp of when the file in filesystem was last modified as 'yyyy-MM-dd'T'HH:mm:ssZ'</td></tr><tr><td>file.lastAccessTime</td><td>The timestamp of when the file in filesystem was last accessed as 'yyyy-MM-dd'T'HH:mm:ssZ'</td></tr><tr><td>file.creationTime</td><td>The timestamp of when the file in filesystem was created as 'yyyy-MM-dd'T'HH:mm:ssZ'</td></tr></table><h3>State management: </h3><table id="stateful"><tr><th>Scope</th><th>Description</th></tr><tr><td>LOCAL, CLUSTER</td><td>After performing a listing of files, the timestamp of the newest file is stored. This allows the Processor to list only files that have been added or modified after this date the next time that the Processor is run. Whether the state is stored with a Local or Cluster scope depends on the value o
f the <Input Directory Location> property.</td></tr></table><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.GetFile/index.html">GetFile</a>, <a href="../org.apache.nifi.processors.standard.PutFile/index.html">PutFile</a>, <a href="../org.apache.nifi.processors.standard.FetchFile/index.html">FetchFile</a></p></body></html>
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+<!DOCTYPE html><html lang="en"><head><meta charset="utf-8"></meta><title>ListSFTP</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;">ListSFTP</h1><h2>Description: </h2><p>Performs a listing of the files residing on an SFTP server. For each file that is found on the remote server, a new FlowFile will be created with the filename attribute set to the name of the file on the remote server. This can then be used in conjunction with FetchSFTP in order to fetch those files.</p><h3>Tags: </h3><p>list, sftp, remote, ingest, source, input, files</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 an
y default values, whether a property supports the <a href="../../../../../html/expression-language-guide.html">NiFi Expression Language</a>, and whether a property is considered "sensitive", meaning that its value will be encrypted. Before entering a value in a sensitive property, ensure that the <strong>nifi.properties</strong> file has an entry for the property <strong>nifi.sensitive.props.key</strong>.</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>Listing Strategy</strong></td><td id="default-value">timestamps</td><td id="allowable-values"><ul><li>Tracking Timestamps <img src="../../../../../html/images/iconInfo.png" alt="This strategy tracks the latest timestamp of listed entity to determine new/updated entities. Since it only tracks few timestamps, it can manage listing state efficiently. However, any newly added, or updated entity having timestamp older than the tracked latest timest
amp can not be picked by this strategy. For example, such situation can happen in a file system if a file with old timestamp is copied or moved into the target directory without its last modified timestamp being updated." title="This strategy tracks the latest timestamp of listed entity to determine new/updated entities. Since it only tracks few timestamps, it can manage listing state efficiently. However, any newly added, or updated entity having timestamp older than the tracked latest timestamp can not be picked by this strategy. For example, such situation can happen in a file system if a file with old timestamp is copied or moved into the target directory without its last modified timestamp being updated."></img></li><li>Tracking Entities <img src="../../../../../html/images/iconInfo.png" alt="This strategy tracks information of all the listed entities within the latest 'Entity Tracking Time Window' to determine new/updated entities. This strategy can pick entities having old ti
mestamp that can be missed with 'Tracing Timestamps'. However additional DistributedMapCache controller service is required and more JVM heap memory is used. See the description of 'Entity Tracking Time Window' property for further details on how it works." title="This strategy tracks information of all the listed entities within the latest 'Entity Tracking Time Window' to determine new/updated entities. This strategy can pick entities having old timestamp that can be missed with 'Tracing Timestamps'. However additional DistributedMapCache controller service is required and more JVM heap memory is used. See the description of 'Entity Tracking Time Window' property for further details on how it works."></img></li></ul></td><td id="description">Specify how to determine new/updated entities. See each strategy descriptions for detail.</td></tr><tr><td id="name"><strong>Hostname</strong></td><td id="default-value"></td><td id="allowable-values"></td><td id="description">The fully qualifi
ed hostname or IP address of the remote system<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">22</td><td id="allowable-values"></td><td id="description">The port to connect to on the remote host to fetch the data from<br/><strong>Supports Expression Language: true (will be evaluated using variable registry only)</strong></td></tr><tr><td id="name"><strong>Username</strong></td><td id="default-value"></td><td id="allowable-values"></td><td id="description">Username<br/><strong>Supports Expression Language: true (will be evaluated using variable registry only)</strong></td></tr><tr><td id="name">Password</td><td id="default-value"></td><td id="allowable-values"></td><td id="description">Password for the user account<br/><strong>Sensitive Property: true</strong><br/><strong>Supports Expression Language: true (will be evaluated using variable registry onl
y)</strong></td></tr><tr><td id="name">Private Key Path</td><td id="default-value"></td><td id="allowable-values"></td><td id="description">The fully qualified path to the Private Key file<br/><strong>Supports Expression Language: true (will be evaluated using variable registry only)</strong></td></tr><tr><td id="name">Private Key Passphrase</td><td id="default-value"></td><td id="allowable-values"></td><td id="description">Password for the private key<br/><strong>Sensitive Property: true</strong><br/><strong>Supports Expression Language: true (will be evaluated using variable registry only)</strong></td></tr><tr><td id="name">Remote Path</td><td id="default-value">.</td><td id="allowable-values"></td><td id="description">The path on the remote system from which to pull or push files<br/><strong>Supports Expression Language: true (will be evaluated using variable registry only)</strong></td></tr><tr><td id="name">Distributed Cache Service</td><td id="default-value"></td><td id="allo
wable-values"><strong>Controller Service API: </strong><br/>DistributedMapCacheClient<br/><strong>Implementations: </strong><a href="../../../nifi-hbase_2-client-service-nar/1.9.1/org.apache.nifi.hbase.HBase_2_ClientMapCacheService/index.html">HBase_2_ClientMapCacheService</a><br/><a href="../../../nifi-redis-nar/1.9.1/org.apache.nifi.redis.service.RedisDistributedMapCacheClientService/index.html">RedisDistributedMapCacheClientService</a><br/><a href="../../../nifi-couchbase-nar/1.9.1/org.apache.nifi.couchbase.CouchbaseMapCacheClient/index.html">CouchbaseMapCacheClient</a><br/><a href="../../../nifi-hbase_1_1_2-client-service-nar/1.9.1/org.apache.nifi.hbase.HBase_1_1_2_ClientMapCacheService/index.html">HBase_1_1_2_ClientMapCacheService</a><br/><a href="../../../nifi-distributed-cache-services-nar/1.9.1/org.apache.nifi.distributed.cache.client.DistributedMapCacheClientService/index.html">DistributedMapCacheClientService</a></td><td id="description">NOTE: This property is used merely
for migration from old NiFi version before state management was introduced at version 0.5.0. The stored value in the cache service will be migrated into the state when this processor is started at the first time. The specified Controller Service was used to maintain state about what had been pulled from the remote server so that if a new node begins pulling data, it won't duplicate all of the work that has been done. If not specified, the information was not shared across the cluster. This property did not need to be set for standalone instances of NiFi but was supposed to be configured if NiFi had been running within a cluster.</td></tr><tr><td id="name"><strong>Search Recursively</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, will pull files from arbitrarily nested subdirectories; otherwise, will not traverse subdirectories</td></tr><tr><td id="name"><strong>Follow symlink</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, will pull even symbolic files and also nested symbolic subdirectories; otherwise, will not read symbolic files and will not traverse symbolic link subdirectories</td></tr><tr><td id="name">File Filter Regex</td><td id="default-value"></td><td id="allowable-values"></td><td id="description">Provides a Java Regular Expression for filtering Filenames; if a filter is supplied, only files whose names match that Regular Expression will be fetched</td></tr><tr><td id="name">Path Filter Regex</td><td id="default-value"></td><td id="allowable-values"></td><td id="description">When Search Recursively is true, then only subdirectories whose path matches the given Regular Expression will be scanned</td></tr><tr><td id="name"><strong>Ignore Dotted Files</strong></td><td id="default-value">true</td><td id="allowable-values"><ul><li>true</li><li>false</li></ul></td><td
id="description">If true, files whose names begin with a dot (".") will be ignored</td></tr><tr><td id="name"><strong>Strict Host Key Checking</strong></td><td id="default-value">false</td><td id="allowable-values"><ul><li>true</li><li>false</li></ul></td><td id="description">Indicates whether or not strict enforcement of hosts keys should be applied</td></tr><tr><td id="name">Host Key File</td><td id="default-value"></td><td id="allowable-values"></td><td id="description">If supplied, the given file will be used as the Host Key; otherwise, no use host key file will be used</td></tr><tr><td id="name"><strong>Connection Timeout</strong></td><td id="default-value">30 sec</td><td id="allowable-values"></td><td id="description">Amount of time to wait before timing out while creating a connection</td></tr><tr><td id="name"><strong>Data Timeout</strong></td><td id="default-value">30 sec</td><td id="allowable-values"></td><td id="description">When transferring a file between the local and
remote system, this value specifies how long is allowed to elapse without any data being transferred between systems</td></tr><tr><td id="name"><strong>Send Keep Alive On Timeout</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 whether or not to send a single Keep Alive message when SSH socket times out</td></tr><tr><td id="name"><strong>Target System Timestamp Precision</strong></td><td id="default-value">auto-detect</td><td id="allowable-values"><ul><li>Auto Detect <img src="../../../../../html/images/iconInfo.png" alt="Automatically detect time unit deterministically based on candidate entries timestamp. Please note that this option may take longer to list entities unnecessarily, if none of entries has a precise precision timestamp. E.g. even if a target system supports millis, if all entries only have timestamps without millis, such as '2017-06-16 09:06:34.000', then its precision is de
termined as 'seconds'." title="Automatically detect time unit deterministically based on candidate entries timestamp. Please note that this option may take longer to list entities unnecessarily, if none of entries has a precise precision timestamp. E.g. even if a target system supports millis, if all entries only have timestamps without millis, such as '2017-06-16 09:06:34.000', then its precision is determined as 'seconds'."></img></li><li>Milliseconds <img src="../../../../../html/images/iconInfo.png" alt="This option provides the minimum latency for an entry from being available to being listed if target system supports millis, if not, use other options." title="This option provides the minimum latency for an entry from being available to being listed if target system supports millis, if not, use other options."></img></li><li>Seconds <img src="../../../../../html/images/iconInfo.png" alt="For a target system that does not have millis precision, but has in seconds." title="For a
target system that does not have millis precision, but has in seconds."></img></li><li>Minutes <img src="../../../../../html/images/iconInfo.png" alt="For a target system that only supports precision in minutes." title="For a target system that only supports precision in minutes."></img></li></ul></td><td id="description">Specify timestamp precision at the target system. Since this processor uses timestamp of entities to decide which should be listed, it is crucial to use the right timestamp precision.</td></tr><tr><td id="name">Proxy Configuration Service</td><td id="default-value"></td><td id="allowable-values"><strong>Controller Service API: </strong><br/>ProxyConfigurationService<br/><strong>Implementation: </strong><a href="../../../nifi-proxy-configuration-nar/1.9.1/org.apache.nifi.proxy.StandardProxyConfigurationService/index.html">StandardProxyConfigurationService</a></td><td id="description">Specifies the Proxy Configuration Controller Service to proxy network requests. If
set, it supersedes proxy settings configured per component. Supported proxies: SOCKS + AuthN, HTTP + AuthN</td></tr><tr><td id="name">Proxy Type</td><td id="default-value">DIRECT</td><td id="allowable-values"><ul><li>DIRECT</li><li>HTTP</li><li>SOCKS</li></ul></td><td id="description">Proxy type used for file transfers</td></tr><tr><td id="name">Proxy Host</td><td id="default-value"></td><td id="allowable-values"></td><td id="description">The fully qualified hostname or IP address of the proxy server<br/><strong>Supports Expression Language: true (will be evaluated using variable registry only)</strong></td></tr><tr><td id="name">Proxy Port</td><td id="default-value"></td><td id="allowable-values"></td><td id="description">The port of the proxy server<br/><strong>Supports Expression Language: true (will be evaluated using variable registry only)</strong></td></tr><tr><td id="name">Http Proxy Username</td><td id="default-value"></td><td id="allowable-values"></td><td id="description"
>Http Proxy Username<br/><strong>Supports Expression Language: true (will be evaluated using variable registry only)</strong></td></tr><tr><td id="name">Http Proxy Password</td><td id="default-value"></td><td id="allowable-values"></td><td id="description">Http Proxy Password<br/><strong>Sensitive Property: true</strong><br/><strong>Supports Expression Language: true (will be evaluated using variable registry only)</strong></td></tr><tr><td id="name">Entity Tracking State Cache</td><td id="default-value"></td><td id="allowable-values"><strong>Controller Service API: </strong><br/>DistributedMapCacheClient<br/><strong>Implementations: </strong><a href="../../../nifi-hbase_2-client-service-nar/1.9.1/org.apache.nifi.hbase.HBase_2_ClientMapCacheService/index.html">HBase_2_ClientMapCacheService</a><br/><a href="../../../nifi-redis-nar/1.9.1/org.apache.nifi.redis.service.RedisDistributedMapCacheClientService/index.html">RedisDistributedMapCacheClientService</a><br/><a href="../../../nifi-
couchbase-nar/1.9.1/org.apache.nifi.couchbase.CouchbaseMapCacheClient/index.html">CouchbaseMapCacheClient</a><br/><a href="../../../nifi-hbase_1_1_2-client-service-nar/1.9.1/org.apache.nifi.hbase.HBase_1_1_2_ClientMapCacheService/index.html">HBase_1_1_2_ClientMapCacheService</a><br/><a href="../../../nifi-distributed-cache-services-nar/1.9.1/org.apache.nifi.distributed.cache.client.DistributedMapCacheClientService/index.html">DistributedMapCacheClientService</a></td><td id="description">Listed entities are stored in the specified cache storage so that this processor can resume listing across NiFi restart or in case of primary node change. 'Tracking Entities' strategy require tracking information of all listed entities within the last 'Tracking Time Window'. To support large number of entities, the strategy uses DistributedMapCache instead of managed state. Cache key format is 'ListedEntities::{processorId}(::{nodeId})'. If it tracks per node listed entities, then the optional '::{no
deId}' part is added to manage state separately. E.g. cluster wide cache key = 'ListedEntities::8dda2321-0164-1000-50fa-3042fe7d6a7b', per node cache key = 'ListedEntities::8dda2321-0164-1000-50fa-3042fe7d6a7b::nifi-node3' The stored cache content is Gzipped JSON string. The cache key will be deleted when target listing configuration is changed. Used by 'Tracking Entities' strategy.</td></tr><tr><td id="name">Entity Tracking Time Window</td><td id="default-value">3 hours</td><td id="allowable-values"></td><td id="description">Specify how long this processor should track already-listed entities. 'Tracking Entities' strategy can pick any entity whose timestamp is inside the specified time window. For example, if set to '30 minutes', any entity having timestamp in recent 30 minutes will be the listing target when this processor runs. A listed entity is considered 'new/updated' and a FlowFile is emitted if one of following condition meets: 1. does not exist in the already-listed entitie
s, 2. has newer timestamp than the cached entity, 3. has different size than the cached entity. If a cached entity's timestamp becomes older than specified time window, that entity will be removed from the cached already-listed entities. Used by 'Tracking Entities' strategy.<br/><strong>Supports Expression Language: true (will be evaluated using variable registry only)</strong></td></tr><tr><td id="name">Entity Tracking Initial Listing Target</td><td id="default-value">all</td><td id="allowable-values"><ul><li>Tracking Time Window <img src="../../../../../html/images/iconInfo.png" alt="Ignore entities having timestamp older than the specified 'Tracking Time Window' at the initial listing activity." title="Ignore entities having timestamp older than the specified 'Tracking Time Window' at the initial listing activity."></img></li><li>All Available <img src="../../../../../html/images/iconInfo.png" alt="Regardless of entities timestamp, all existing entities will be listed at the init
ial listing activity." title="Regardless of entities timestamp, all existing entities will be listed at the initial listing activity."></img></li></ul></td><td id="description">Specify how initial listing should be handled. Used by 'Tracking Entities' strategy.</td></tr><tr><td id="name"><strong>Minimum File Age</strong></td><td id="default-value">0 sec</td><td id="allowable-values"></td><td id="description">The minimum age that a file must be in order to be pulled; any file younger than this amount of time (according to last modification date) will be ignored</td></tr><tr><td id="name">Maximum File Age</td><td id="default-value"></td><td id="allowable-values"></td><td id="description">The maximum age that a file must be in order to be pulled; any file older than this amount of time (according to last modification date) will be ignored</td></tr><tr><td id="name"><strong>Minimum File Size</strong></td><td id="default-value">0 B</td><td id="allowable-values"></td><td id="description">
The minimum size that a file must be in order to be pulled</td></tr><tr><td id="name">Maximum File Size</td><td id="default-value"></td><td id="allowable-values"></td><td id="description">The maximum size that a file can be in order to be pulled</td></tr></table><h3>Relationships: </h3><table id="relationships"><tr><th>Name</th><th>Description</th></tr><tr><td>success</td><td>All FlowFiles that are received are routed to success</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>sftp.remote.host</td><td>The hostname of the SFTP Server</td></tr><tr><td>sftp.remote.port</td><td>The port that was connected to on the SFTP Server</td></tr><tr><td>sftp.listing.user</td><td>The username of the user that performed the SFTP Listing</td></tr><tr><td>file.owner</td><td>The numeric owner id of the source file</td></tr><tr><td>file.group</td><td>The numeric group id of the source f
ile</td></tr><tr><td>file.permissions</td><td>The read/write/execute permissions of the source file</td></tr><tr><td>file.size</td><td>The number of bytes in the source file</td></tr><tr><td>file.lastModifiedTime</td><td>The timestamp of when the file in the filesystem waslast modified as 'yyyy-MM-dd'T'HH:mm:ssZ'</td></tr><tr><td>filename</td><td>The name of the file on the SFTP Server</td></tr><tr><td>path</td><td>The fully qualified name of the directory on the SFTP Server from which the file was pulled</td></tr></table><h3>State management: </h3><table id="stateful"><tr><th>Scope</th><th>Description</th></tr><tr><td>CLUSTER</td><td>After performing a listing of files, the timestamp of the newest file is stored. This allows the Processor to list only files that have been added or modified after this date the next time that the Processor is run. State is stored across the cluster so that this Processor can be run on Primary Node only and if a new Primary Node is selected, the new n
ode will not duplicate the data that was listed by the previous Primary Node.</td></tr></table><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.FetchSFTP/index.html">FetchSFTP</a>, <a href="../org.apache.nifi.processors.standard.GetSFTP/index.html">GetSFTP</a>, <a href="../org.apache.nifi.processors.standard.PutSFTP/index.html">PutSFTP</a></p></body></html>
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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/1.9.1/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><tr><td id="name"><strong>Multipart Request Max Size</strong></td><td id="default-value">1 MB</td><td id="allowable-values"></td><td id="description">The max size of the request. Only applies for requests with Content-Type: multipart/form-data, and is used to prevent denial of service type of attacks, to prevent filling up the heap o
r disk space</td></tr><tr><td id="name"><strong>Multipart Read Buffer Size</strong></td><td id="default-value">512 KB</td><td id="allowable-values"></td><td id="description">The threshold size, at which the contents of an incoming file would be written to disk. Only applies for requests with Content-Type: multipart/form-data. It is used to prevent denial of service type of attacks, to prevent filling up the heap or disk space.</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 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>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/1.9.1/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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+<!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/1.9.1/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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