Flume-ng/Headers

[Guillaume Polaert]

Hi,

It's me again.
I have a question about event headers.

Are there generic headers for all event like timestamp or hostname ?
I'm using flune-ng like this : exec (iostat) -> memory -> avro+logger // avro 
-> memory -> rollingfile+logger on the same host. Headers are always empty.
        [INFO - org.apache.flume.sink.LoggerSink.process(LoggerSink.java:68)] 
Event: { headers:{} body:[B@5421e554 }

How to set/use these headers ? Do I have to use a custom class ?

Thanks, GPO