mfseattr - MooseFS
extra attributes management tools
[ -f ATTRNAME
[ -f ATTRNAME
These tools are used to get, set or delete some extra attributes (flags).
This flag means, that particular object belongs to current user (
are equal to uid
accessing process). Only root ( uid
=0) sees the real uid
This flag means, that standard file attributes such as uid,
gid, mode, length and so on won't be stored in kernel cache. In MooseFS 1.5
this was the only behaviour, and mfsmount always prevented attributes from
being stored in kernel cache, but in MooseFS 1.6 attributes can be cached, so
in very rare occasions it could be useful to turn it off.
This flag is similar to above. It prevents directory entries
from being cached in kernel.
This flag means, that data cache should be cleared every time
a file is opened.
This flag means that the object was created via a
Most of mfstools
options to select format of printed numbers. -n
causes to print exact numbers, -h
uses binary prefixes (Ki, Mi, Gi as
2^10, 2^20 etc.) while -H
uses SI prefixes (k, M, G as 10^3, 10^6
show plain numbers respectivaly in
kibis (binary kilo - 1024), mebis (binary mega - 1024^2) and gibis (binary
giga - 1024^3). The same can be achieved by setting MFSHRFORMAT
environment variable to: 0
(exact numbers), 1
(binary prefixes), 2
(SI prefixes), 3
(exact numbers and binary prefixes), 4
(exact numbers and
SI prefixes). The default is to print just exact numbers.
When new object is created in MooseFS, attributes such as storage class,
trashtime and extra attributes are inherited from parent directory. So if you
set i.e. "noowner" attribute and storage class to
"important" in a directory then every new object created in this
directory will have storage class set to "important" and
"noowner" flag set. A newly created object inherits always the
current set of its parent's attributes. Changing a directory attribute does
not affect its already created children. To change an attribute for a
directory and all of its children use -r
Report bugs to <firstname.lastname@example.org>.
Copyright (C) 2018 Jakub Kruszona-Zawadzki, Core Technology Sp. z o.o.
This file is part of MooseFS.
MooseFS is free software; you can redistribute it and/or modify it under the
terms of the GNU General Public License as published by the Free Software
Foundation, version 2 (only).
MooseFS is distributed in the hope that it will be useful, but WITHOUT ANY
WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
A PARTICULAR PURPOSE. See the GNU General Public License for more details.
You should have received a copy of the GNU General Public License along with
MooseFS; if not, write to the Free Software Foundation, Inc., 51 Franklin St,
Fifth Floor, Boston, MA 02111-1301, USA or visit