The PutUDP processor receives a FlowFile and packages the FlowFile content into a single UDP datagram packet which is then transmitted to the configured UDP server. The user must ensure that the FlowFile content being fed to this processor is not larger than the maximum size for the underlying UDP transport. The maximum transport size will vary based on the platform setup but is generally just under 64KB. FlowFiles will be marked as failed if their content is larger than the maximum transport size.


remote, egress, put, udp


In the list below, the names of required properties appear in bold. Any other properties (not in bold) are considered optional. The table also indicates any default values, and whether a property supports the Expression Language Guide.

Name Default Value Allowable Values Description
Hostname localhost The ip address or hostname of the destination.
Port The port on the destination.
Max Size of Socket Send Buffer 1 MB The maximum size of the socket send buffer that should be used. This is a suggestion to the Operating System to indicate how big the socket buffer should be. If this value is set too low, the buffer may fill up before the data can be read, and incoming data will be dropped.
Idle Connection Expiration 5 seconds The amount of time a connection should be held open without being used before closing the connection


Name Description
failure FlowFiles that failed to send to the destination are sent out this relationship.
success FlowFiles that are sent successfully to the destination are sent out this relationship.

Reads Attributes:

None specified.

Writes Attributes:

None specified.

State management:

This component does not store state


This component is not restricted.