Event serializers
An event serializer is the mechanism by which a Flume event is converted into another format for output. It is similar in function to the Layout
class in log4j. By default, the text
serializer, which outputs just the Flume event body. There is another, header_and_text
, which outputs both the headers and the body. Finally, there is an
avro_event
serializer that can be used to create an Avro representation of the event. If you write your own, you'd use the implementation's fully qualified class name as the serializer
property value.
Text output
As mentioned previously, the default serializer is the text
serializer. This will output only the Flume event body, with the headers discarded. Each event has a new line character appender unless you override this default behavior by setting the serializer.appendNewLine
property to false
.
Key |
Required |
Type |
Default |
---|---|---|---|
|
No |
|
text |
|
No |
|
true |
Text with headers
The text_with_headers
serializer...