emqx4.3/docs/source/config.rst

.. _configuration:

======================
Configuration
======================


------------
etc/vm.args
------------

.. code::

    ##-------------------------------------------------------------------------
    ## Name of the node
    ##-------------------------------------------------------------------------
    -name emqttd@127.0.0.1

    ## Cookie for distributed erlang
    -setcookie emqttdsecretcookie

    ##-------------------------------------------------------------------------
    ## Flags
    ##-------------------------------------------------------------------------

    ## Heartbeat management; auto-restarts VM if it dies or becomes unresponsive
    ## (Disabled by default..use with caution!)
    ##-heart
    -smp true

    ## Enable kernel poll and a few async threads
    +K true

    ## 12 threads/core.
    +A 48

    ## max process numbers
    +P 8192

    ## Sets the maximum number of simultaneously existing ports for this system
    +Q 8192

    ## max atom number
    ## +t

    ## Set the distribution buffer busy limit (dist_buf_busy_limit) in kilobytes.
    ## Valid range is 1-2097151. Default is 1024.
    ## +zdbbl 8192

    ## CPU Schedulers
    ## +sbt db

    ##-------------------------------------------------------------------------
    ## Env
    ##-------------------------------------------------------------------------

    ## Increase number of concurrent ports/sockets, deprecated in R17
    -env ERL_MAX_PORTS 8192

    -env ERTS_MAX_PORTS 8192

    -env ERL_MAX_ETS_TABLES 1024

    ## Tweak GC to run more often
    -env ERL_FULLSWEEP_AFTER 1000

------------------
etc/emqttd.config
------------------


Log Level
-------------

Broker Parameters
------------------