XD-74 Tail Module

3 parameters:

    name: filename (absolute path); default: /tmp/xd/input/${xd.stream.name}
    lines: Number of lines before the end of the file to tail; default: 0
    delay: On platforms that don't wait for a missing file to arrive, the number of milliseconds between attempts; default: 5000

curl -X POST -d "tail --name=/tmp/foo --lines=5 | file --name=bar" http://localhost:8080/streams/tailtest