[Bugs] [Bug 1418091] [RFE] Support multiple bricks in one process (multiplexing)

[bugzilla at redhat.com]

https://bugzilla.redhat.com/show_bug.cgi?id=1418091



--- Comment #4 from Worker Ant <bugzilla-bot at gluster.org> ---
COMMIT: https://review.gluster.org/16496 committed in release-3.10 by
Shyamsundar Ranganathan (srangana at redhat.com) 
------
commit 83803b4b2d70e9e6e16bb050d7ac8e49ba420893
Author: Jeff Darcy <jdarcy at redhat.com>
Date:   Tue Jan 31 14:49:45 2017 -0500

    core: run many bricks within one glusterfsd process

    This patch adds support for multiple brick translator stacks running in
    a single brick server process.  This reduces our per-brick memory usage
    by approximately 3x, and our appetite for TCP ports even more.  It also
    creates potential to avoid process/thread thrashing, and to improve QoS
    by scheduling more carefully across the bricks, but realizing that
    potential will require further work.

    Multiplexing is controlled by the "cluster.brick-multiplex" global
    option.  By default it's off, and bricks are started in separate
    processes as before.  If multiplexing is enabled, then *compatible*
    bricks (mostly those with the same transport options) will be started in
    the same process.

    Backport of:
    > Change-Id: I45059454e51d6f4cbb29a4953359c09a408695cb
    > BUG: 1385758
    > Reviewed-on: https://review.gluster.org/14763

    Change-Id: I4bce9080f6c93d50171823298fdf920258317ee8
    BUG: 1418091
    Signed-off-by: Jeff Darcy <jdarcy at redhat.com>
    Reviewed-on: https://review.gluster.org/16496
    Smoke: Gluster Build System <jenkins at build.gluster.org>
    NetBSD-regression: NetBSD Build System <jenkins at build.gluster.org>
    CentOS-regression: Gluster Build System <jenkins at build.gluster.org>
    Reviewed-by: Shyamsundar Ranganathan <srangana at redhat.com>

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