On 04/09/2015 10:20 PM, Cristian Falcas wrote:
Thanks. So the hostname is not supposed to be set automatically, no?
You haven't given enough detail for me to know. A LogstreamerInput that is 
reading a text log file does default to setting the local hostname for each 
message, although you can override the hostname that you want to use in the 
config. This may be (and often is) overwritten by a decoder, however. A 
LogstreamerInput that is loading a file full of protobuf encoded Heka messages 
will not set the hostname, because it's presumed that the messages will already 
have the hostname set. The former case is much more common than the latter 
case, so generally a LogstreamerInput *will* set a hostname by default.

A TcpInput behaves similarly. If it's receiving a stream of raw text data, the 
text will end up as the message payload, and the hostname will be set to the 
remote address of the TCP connection. If it's receiving a stream of protobuf 
encoded messages, the messages themselves will already have the hostname set. 
For TcpInputs, the protobuf encoded case is the more common one, so generally 
TcpInputs will not set a default hostname.

From your question, it's not clear to me which hostname (A or B) you're 
expecting to see, nor where.

-r


On Thu, Apr 9, 2015 at 8:15 PM, Rob Miller <[email protected]
<mailto:[email protected]>> wrote:

    Are you doing any parsing at all of the data that you're reading,
    currently? Regardless, you can probably just add a ScribbleDecoder
    to set the Hostname field on all of the records coming in through
    that particular LogstreamerInput. If a SandboxDecoder is already in
    play, you can tweak that to set the Hostname field in addition to
    whatever other work it's already doing.

    -r



    On 04/09/2015 07:48 AM, Cristian Falcas wrote:

        Hello,

        I'm trying to send messages from host A to host B and I was
        expecting
        that the hostname will be set automatically.

        I'm reading on host A from /dev/log and forward them to host B
        with TcpOutput.

        Is this normal and I need to use a "PayloadRegexDecoder" or a
        sendbox
        plugin in order to set this?

        Thank you,
        Cristian Falcas
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