Symfony 2 - Don't pass logging to next handler

Question

I've defined a service to handle logging of records with specific text (e.g. "matched route" and such). I'm successfully writing those records out to a separate file.

However, what I want to avoid is writing them a second time to the primary log file. I've tried tagging my service with a channel and telling the main stream log to ignore that channel, but it occurs to me that it won't work since, in essence, the main stream logging handler matches everything.

Any advice on how to proceed?

EDIT: Here's what I have at the moment:

monolog:
    channels: ['noise']
    handlers:
        eliminate_noise_logger:
            type: service
            id: common.eliminate_noise_logger
            channels: ['noise']

        streamed:
            type:  stream
            level: info
            path:  "%kernel.logs_dir%/%kernel.environment%.log"
            formatter: monolog.formatter.session_request
            channels: ['!noise']

        console:
            type:  console
            verbosity_levels:
                VERBOSITY_NORMAL: INFO

And my services definition:

common.eliminate_noise_logger:
    class: path\to\class
    arguments: ["%kernel.logs_dir%/%kernel.environment%.noise.log", ["str1", "str2", "str3"]]
    tags:
        - { name: monolog.logger, channel: noise }

Answer 1

This is how I do

#config.yml
monolog:
    use_microseconds: false
    channels: ['secondary']
    handlers:
        main:
            path: %kernel.logs_dir%/%kernel.language%/%kernel.environment%.log
            type          : fingers_crossed
            action_level  : error
            handler       : nested
            channels      : ['!secondary']
        secondary:
            type: rotating_file
            max_files: 10
            path: %kernel.logs_dir%/%kernel.language%/%kernel.environment%.secondary.log
            level: info
            channels: [secondary]