[Bugs] [Bug 1279166] Data Tiering:Metadata changes to a file should not heat/promote the file

[bugzilla at redhat.com]

https://bugzilla.redhat.com/show_bug.cgi?id=1279166



--- Comment #2 from Vijay Bellur <vbellur at redhat.com> ---
COMMIT: http://review.gluster.org/12540 committed in master by Dan Lambright
(dlambrig at redhat.com) 
------
commit d4aaa00d77d7a10748a1ca9af82265ad9ac42598
Author: Joseph Fernandes <josferna at redhat.com>
Date:   Sun Nov 8 15:33:15 2015 +0530

    tier/ctr: Providing option to record or ignore metadata heat

    Currently we heat up a file for both data and metadata write.
    Here we provide a ctr xlator option called "ctr-record-metadata-heat"
    were the admin can decide on recording metadata heat i.e heatup a
    file on metadata writes or not.
    Metadata data operation are
    a. setattr: explicit changing of atime/mtime using utimes,
                changing of posix permissions of the file
    b. rename: Renaming a file,
    c. unlink, link: adding or deleting hardlinks
    d. xattrs: setting or removal of xattrs.

    NOTE: atime, mtime and ctime change through writev, readv, truncate, mknod
    and create will not be considered here as these fops are data and primary
    metadata fops.

    Defaultly "ctr-record-metadata-heat" is off. Admin can
    switch it on using gluster volume set command.

    Change-Id: I91157509255dd5cb429cda2b6d4f64582e155e7b
    BUG: 1279166
    Signed-off-by: Joseph Fernandes <josferna at redhat.com>
    Reviewed-on: http://review.gluster.org/12540
    Tested-by: NetBSD Build System <jenkins at build.gluster.org>
    Tested-by: Gluster Build System <jenkins at build.gluster.com>
    Reviewed-by: Dan Lambright <dlambrig at redhat.com>
    Tested-by: Dan Lambright <dlambrig at redhat.com>

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