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LogMessage

Description​

Emits a log message at the specified log level

Tags​

attributes, logging

Properties​

In the list below required Properties are shown with an asterisk (*). Other properties are considered optional. The table also indicates any default values, and whether a property supports the NiFi Expression Language.

Display NameAPI NameDefault ValueAllowable ValuesDescription
Log Level *log-levelinfoThe Log Level to use when logging the message: [trace, debug, info, warn, error]

Supports Expression Language, using FlowFile attributes and Environment variables.
Log prefixlog-prefixLog prefix appended to the log lines. It helps to distinguish the output of multiple LogMessage processors.

Supports Expression Language, using FlowFile attributes and Environment variables.
Log messagelog-messageThe log message to emit

Supports Expression Language, using FlowFile attributes and Environment variables.

Dynamic Properties​

This component does not support dynamic properties.

Relationships​

NameDescription
successAll FlowFiles are routed to this relationship

Reads Attributes​

This processor does not read attributes.

Writes Attributes​

This processor does not write attributes.

State Management​

This component does not store state.

Restricted​

This component is not restricted.

Input Requirement​

This component requires an incoming relationship.

System Resource Considerations​

This component does not specify system resource considerations.

See Also​